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H6060V15SO8 - Self-Recovering Watchdog Supervisor | EM Microelectronic
The EM Microelectronic H6060V15SO8 is a self-recovering watchdog supervisor IC housed in an 8-pin SOIC package. It is designed to monitor microprocessor activity and automatically reset the system if the host MCU fails to service the watchdog within a programmed window. The device operates as part of EM Microelectronic's H6060V family of voltage supervisors and watchdog timers, providing robust brown-out and code-flow monitoring in a compact 8-SOIC outline. Background Knowledge: A watchdog supervisor is a specialized power management integrated circuit (PMIC) that observes the host processor's execution flow. Unlike a simple voltage supervisor (reset IC) that only monitors VCC levels, a watchdog timer requires the firmware to periodically toggle a watchdog input (WDI) pin. If the firmware becomes stuck (infinite loop, crash, or lock-up), the supervisor issues a reset pulse to restart the system. A self-recovering watchdog additionally clears the underlying fault condition, allowing the system to come back online without manual intervention - critical for unattended or remote installations. Key features of the H6060V15SO8 include a single-channel open-drain reset output, a low-threshold voltage detect circuit, and integrated self-recovery logic that prevents repeated fault cycling. The device is offered in an 8-pin SOIC package suitable for industrial temperature grade designs, and its open-drain output topology allows wired-OR connection with other system reset sources. The H6060V family is commonly deployed alongside main MCUs in safety-critical and industrial automation applications where a stuck firmware state must not lock the equipment permanently. Architecturally, the H6060V15SO8 integrates a precision voltage reference, a windowed watchdog counter, and a self-recovery state machine on a single die. The supervisor's windowed watchdog requires WDI activity to occur inside a tight time window - too early or too late both generate a reset - providing stronger fault coverage than a traditional time-out watchdog. The self-recovery function monitors reset duration and, after a programmed recovery interval, automatically re-enables the host and resumes normal operation. Typical applications include industrial PLC modules, building automation controllers, IoT edge nodes, automotive accessory modules, and embedded consumer devices where firmware hangs must be cleared without user intervention. The H6060V15SO8 is also used in feedback instrumentation and remote sensor platforms that must survive transient firmware faults caused by EMI or power-line glitches. When designing with the H6060V15SO8, follow the manufacturer's recommended capacitor selection on the VCC pin and observe the maximum WDI pulse-width timing budget in the datasheet. Because the reset output is open-drain, an external pull-up resistor to the system logic supply is required; verify the resistor value against the system's rise-time requirements. This page synthesizes distributor pricing, package-marking cross-reference (MMP301 and H6060V15SO8A/B variants), and practical design notes not aggregated in the manufacturer datasheet.
H6060V15SO8B+ - 6V Self-Recovering Watchdog Supervisor | EM Microelectronic
The EM Microelectronic H6060V15SO8B+ is a self-recovering watchdog supervisor with integrated reset circuit, housed in an 8-pin SOIC (SO-8, 3.90 mm body width) package. The H6060 family combines a fixed-threshold voltage detector with a watchdog timer that automatically restarts the host microcontroller after a fault, eliminating the need for external intervention in brown-out or firmware-hang conditions. A voltage supervisor (also called a reset IC or power-on reset generator) is a power management IC that monitors a supply rail and asserts a reset signal to a host processor whenever the rail falls below a safe operating threshold. Supervisors sit between the system power rail and the reset pin of a microcontroller, DSP, or ASIC, and are a foundational block of any safety-critical or battery-powered embedded design. The hierarchy is: supervisor -> reset IC -> power management IC -> semiconductor. Key features of the H6060V15SO8B+ include a 6.0 V nominal reset threshold (the V15 suffix designates this specific threshold variant), open-drain or open-collector reset output for wired-OR flexibility across multiple rails, a self-recovering watchdog with selectable timeout windows, and a wide operating supply range. According to the manufacturer description, the device is a "Self Recovering Watchdog" intended for embedded applications that require automatic recovery from transient faults without operator intervention. Architecturally, the H6060 integrates a precision bandgap reference, a comparator against the internal threshold, a programmable watchdog counter, and the open-drain output stage. The self-recovery logic retriggers a reset pulse to the host if the watchdog input (WDI) does not toggle within the programmed window - effectively acting as an autonomous watchdog supervisor. Compared to a discrete RC reset or a host firmware watchdog, this hardware implementation is independent of the same firmware that may have locked up, providing true fault-recovery capability. Typical applications include embedded automotive body modules, industrial PLCs, point-of-sale terminals, IoT edge nodes with sleep-mode cycling, and any microcontroller-based design where unattended fault recovery is required. The wide supply range also suits battery chargers and power-supply secondary-side monitoring where the supervisor itself is powered from an unregulated rail. When designing with the H6060V15SO8B+, verify that the 6.0 V reset threshold matches the lowest acceptable operating voltage of your host rail, and confirm the watchdog timeout window against the longest legitimate firmware execution path. Place the decoupling capacitor as close as possible to the VCC pin to avoid false resets on supply transients.
HIP0050IB - 0.3A/50V Octal Low-Side Driver | Renesas | Serial Ctrl
The Renesas HIP0050IB is a 0.3 A / 50 V octal low-side power driver with serial bus control and an over-current fault flag, housed in a 24-pin SOIC (IB) wide-body package. Each of the eight open-drain N-channel MOSFET outputs can sink up to 300 mA continuously and is controlled through a synchronous serial data interface, allowing multiple HIP0050IB devices to be cascaded for expanded I/O. An integrated over-current fault flag provides diagnostic feedback to the host microcontroller. What is an octal low-side driver? An octal low-side driver is a power-management IC that switches the ground side of up to eight loads (lamps, relays, solenoids, displays) using logic-level inputs, while the load supply can be a separate higher-voltage rail. Low-side drivers are widely used in industrial and automotive systems because they simplify wiring - all loads share a common positive supply and only the return path is switched. The 'octal' designation means eight independent channels in one package, reducing board area versus discrete transistors. Key features of the HIP0050IB include 50 V minimum drain-to-source breakdown, 300 mA continuous output current per channel, low quiescent current, a serial interface that supports cascaded operation, and a latched over-current fault flag with automatic retry. Fabricated on Intersil/Renesas' Power BiMOS process, it combines bipolar drive circuitry with DMOS output transistors, giving high breakdown voltage and low on-resistance in a single monolithic IC. The IB suffix indicates the 24-pin plastic SOIC (wide-body) package. Typical applications include automotive lamp and relay driving, process-control output modules, multiplexed LED or vacuum-fluorescent display drivers, and industrial solenoid/valve banks. The serial interface is well suited to microcontroller-based systems where parallel GPIO is scarce - a single SPI-like bus controls eight loads. Compared with discrete MOSFET arrays, the HIP0050IB integrates protection, level shifting, and diagnostic feedback that would otherwise require extra components.
HIP4080AIP - 80V/2.5A Full Bridge N-FET Driver, 20-PDIP | Renesas
The Renesas (formerly Intersil/Harris) HIP4080AIP is an 80V, 2.5A peak, high-frequency full-bridge N-Channel MOSFET gate driver IC housed in a 20-lead plastic DIP (PDIP) package. The HIP4080A integrates an input comparator for hysteresis-mode and PWM operation, independent high-side and low-side drive channels for each half-bridge, adaptive dead-time control, and a programmable HEN (high-side enable) input that forces current to freewheel through the low-side MOSFETs while keeping the high-side FETs off. A full-bridge FET driver is a power-management IC that produces the four gate-drive signals needed to control an H-bridge of N-channel MOSFETs used in DC motor drives, class-D amplifiers, switching converters and similar topologies. The driver sits between a low-power logic controller (MCU, DSP, analog PWM) and the high-current half-bridge stage, providing level shifting, gate charge management, and shoot-through protection that logic-level microcontrollers cannot deliver directly. The HIP4080A family is part of the broader Renesas HIP408x driver portfolio alongside HIP4081A (with charge pump) and HIP4082 (lower-voltage variant). Key features include a wide 9.5V to 16V VDD supply range, gate drive outputs capable of 2.5A peak sink/source, programmable rise/fall time through external RDEL resistors, under-voltage lockout (UVLO) for both VDD and bootstrap supplies, and an input comparator with adjustable threshold for sensorless current-mode control. Operating frequencies extend up to 1 MHz when paired with appropriate external MOSFETs and bootstrap components. Architecturally, the HIP4080A uses a charge-pump-free bootstrap design on the high-side rails (AHS/BHS) plus a ground-referenced low-side drive (ALS/BLS), reducing external component count versus parts that require charge pumps. Hysteresis and PWM modes are selected by the logic level on the DEL/HEN pins, and the integrated dead-time generator prevents cross-conduction between the high-side and low-side switches of each half-bridge. Typical applications include brushless DC (BLDC) motor drives, two- and four-quadrant DC motor control, medium-power stepper motor drivers, class-D audio amplifiers, and high-frequency DC-DC converters. The wide operating voltage and 2.5A peak drive strength make it well suited to 24V and 48V industrial bus systems driving N-channel MOSFETs in the 30V to 100V class. When designing with this part, select external bootstrap diodes and capacitors sized for the switching frequency and high-side quiescent current (IHB), and place RDEL programming resistors close to the DEL pins to avoid noise-induced timing jitter. The HIP4080AIP is the through-hole (PDIP-20) variant; the surface-mount HIP4080AIBZ (SOIC-20) is pin-compatible for boards that can be reworked. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and application-focused design guidance beyond the manufacturer datasheet, helping engineers select and qualify the HIP4080AIP for new designs and legacy replacements.
HPA00447PWR - IEEE 802.3af PoE PD Controller | Texas Instruments
The Texas Instruments HPA00447PWR is an IEEE 802.3af Power over Ethernet (PoE) powered device (PD) controller with auto-retry fault recovery, supporting PoE Class 3 detection and classification, supplied in an 8-pin TSSOP (PWR) package rated for -40C to +85C industrial operation. It is functionally identified with the TI TPS2375-1 family of PoE PD interface controllers. A PoE powered device controller is the interface IC that sits between the Ethernet cable and the DC-DC converter of a powered end device such as an IP camera, wireless access point, or VoIP phone. Within the power management hierarchy, it performs the detection, classification, and inrush-current limiting duties that IEEE 802.3af requires before a power sourcing equipment (PSE) switch delivers up to 12.95 W of usable power to a Class 3 device over the data or spare pairs. Key features of the HPA00447PWR include IEEE 802.3af-compliant powered device detection and Class 3 classification signaling, controlled inrush current limiting to satisfy the PSE power-up profile, an internal pass-device gate drive, and an auto-retry fault-management mode that re-attempts power delivery after a fault condition clears rather than latching off. Operating temperature is specified from -40C to +85C, matching industrial and outdoor networking equipment requirements. Technically, the device integrates the precision detection and classification comparators, a programmable class resistor input (CLS), thermal protection, and gate control for an external MOSFET that isolates the load during detection. This architecture lets designers meet the IEEE timing and signature requirements with few external components while keeping the burden resistor and bridge rectifier on the front end. Typical applications include IEEE 802.3af IP security cameras, 802.11 wireless access points, VoIP telephones, and networked access-control readers that draw mid-range power fitting the Class 3 envelope. The auto-retry behavior is particularly useful in outdoor and industrial installations where transient faults should self-recover without a technician visit. When designing, set the classification resistor correctly for Class 3 and verify that the downstream DC-DC converter does not present a negative input impedance that collapses the PSE rail during startup; the inrush-control timing interacts directly with converter soft-start. This page synthesizes distributor sourcing data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
HPA00776PWPR - PoE Interface & DC-DC Controller 802.3at | TI
The Texas Instruments HPA00776PWPR is a high-power, high-efficiency Power over Ethernet (PoE) interface and DC-DC controller that complies with IEEE 802.3at, supplied in a 20-pin HTSSOP (PW) package rated for operation from -40C to +125C. It integrates a PoE powered-device (PD) interface supporting high-power delivery with a switching regulator controller achieving up to 278 kHz switching frequency and 1.1 A maximum output current in the controller stage. A PoE PD interface controller is a power-management IC that performs powered-device detection, classification, and inrush-current limiting while an integrated converter stage turns the extracted 48V rail into a usable system voltage. In the power management hierarchy it sits above discrete MOSFET hot-swap controllers and beside dedicated DC-DC controllers, combining PoE front-end functions and isolated or non-isolated converter control in one silicon solution. Key features include IEEE 802.3at high-power compliance for up to 25.5W-class PD designs, a high-efficiency converter controller topology that supports flyback and forward power supplies, an automotive temperature grade of -40C to +125C, and a thermally enhanced 20-terminal HTSSOP with 0.65 mm terminal pitch for compact, surface-mount layouts. Technically, the device separates the PoE interface section from the converter controller section while coordinating them through internal control logic: the interface handles detection, classification, and inrush management, and the controller then enables the external power stage for regulated conversion. Designers typically pair it with an external MOSFET, transformer, and optocoupler feedback to build isolated 12V or 5V PD outputs. Typical applications include IEEE 802.3at PoE powered devices such as IP surveillance cameras, wireless access points, VoIP phones, and networked industrial equipment where a single Ethernet cable must deliver both data and power. A key design consideration is thermal budgeting: at full 802.3at power levels, the external bridge MOSFETs and sense elements dominate dissipation, so the HTSSOP power pad must land on a solid copper pour. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
HPA01043PWPR - IEEE 802.3at PoE Interface + DC-DC Controller | TI
The Texas Instruments HPA01043PWPR is a high-power, high-efficiency PoE (Power over Ethernet) interface and DC-DC controller that integrates an IEEE 802.3at powered device (PD) interface with a current-mode PWM controller in a 20-pin HTSSOP (PWP) package with PowerPAD, rated for operation from -40C to +125C. A PoE PD interface is the front-end circuit that performs detection, classification, and inrush-current limiting when a device such as an IP camera, wireless access point, or network switch is powered over Ethernet cabling. It sits within the power management IC hierarchy, bridging the IEEE 802.3at physical layer and the downstream isolated or non-isolated DC-DC converter that generates the system rails. Key features include full compliance with the IEEE 802.3at high-power PoE standard, integrated detection and classification signature circuits, and a built-in current-mode DC-DC controller with a maximum switching frequency of 278 kHz, enabling compact magnetics and high conversion efficiency. The device supports up to 1.1 A output current capability in switching controller operation, and the PowerPAD HTSSOP-20 package provides low thermal impedance for high-power PD designs. Technically, the PD interface handles the 25 kOhm detection signature, class signaling, and controlled inrush startup, while the PWM section uses peak current-mode control for cycle-by-cycle current limiting, good transient response, and straightforward loop compensation. This single-chip integration reduces external component count compared to a discrete PD controller plus separate PWM controller solution, improving reliability and BOM cost in high-volume network hardware. Typical applications include IEEE 802.3at powered IP network cameras, 802.11ac/ax wireless access points, VoIP phones, PoE-enabled LED lighting drivers, and industrial Ethernet endpoints that must draw 25.5 W or more from the PSE. Design consideration: verify the external MOSFET and sense resistor ratings against the inrush and fault current limits, and follow the PowerPAD layout guidance for thermal dissipation. This page synthesizes distributor data, cross-reference alternatives, and practical design notes not found in the manufacturer datasheet, with pricing verified as of 2026-10-19.
HPA01124PWPR - IEEE 802.3at PoE Interface + DC/DC Controller | TI
The Texas Instruments HPA01124PWPR is an IEEE 802.3at high-efficiency Power over Ethernet (PoE) interface and DC-DC controller that integrates powered-device (PD) interface functions with a current-mode switching controller, delivering up to 1.1 A output current while operating from a maximum input voltage of 57 V. It is housed in a 20-pin HTSSOP (PW) package with power pad and is rated for operation from -40C to +125C, making it suitable for automotive-grade and industrial designs. A PoE interface and DC-DC controller is a power management IC that performs the IEEE 802.3at powered-device handshake (detection, classification, and inrush-current limiting on the Ethernet power pair) and then controls an external DC-DC converter stage that steps the 48V-class PoE input down to the system rail. In the power management hierarchy it sits between the PoE front end and the point-of-load regulators in powered devices such as IP cameras, wireless access points, and VoIP telephones. Key features of the HPA01124PWPR include compliance with the IEEE 802.3at standard (Type 2, up to 25.5 W at the powered device), a current-mode control architecture that simplifies loop compensation and gives fast transient response, high conversion efficiency for reduced thermal stress, and an extended -40C to +125C operating range. The single-chip integration of the PoE interface and switching controller reduces bill-of-material count compared with two-chip discrete solutions. Architecturally, the device combines the PD interface block with a PWM switching controller that drives external power MOSFETs. Current-mode control provides cycle-by-cycle current limiting, which protects the external MOSFET and transformer during overload and startup inrush events. The 57V maximum input rating covers the worst-case PoE PSE output voltage plus cable drop. Typical applications include IEEE 802.3at powered devices such as network IP security cameras, 802.11ac wireless access points, and PoE-powered LED lighting and building-automation nodes, where a single Ethernet cable must deliver both data and up to Class-4 power. When designing with this device, verify the external MOSFET voltage rating against the 57V maximum input plus switching spikes, and follow the datasheet layout guidance for the power-pad thermal connection. This page synthesizes distributor pricing, alternative-part guidance, and practical design notes that are not consolidated in the manufacturer datasheet.
HT79171 - 500kHz Sync Boost Converter 2A | Holtek
The Holtek HT79171 is a 500kHz synchronous step-up PWM DC-DC converter with a 2.2V to 5.0V input range, 2A continuous output current capability, and 5A peak current limit, housed in an 8-pin ESOP-8 package with exposed pad. It integrates ultra-low RDSON power MOSFETs rated at 25mOhm (main FET) and 45mOhm (synchronous FET), eliminating the need for external rectifier or control transistors. A synchronous step-up (boost) converter is a class of switching voltage regulator that raises a lower input voltage to a higher regulated output voltage. Unlike non-synchronous boost topologies that use a Schottky diode as the rectifying element, a synchronous boost replaces the diode with an integrated MOSFET, reducing conduction losses and significantly improving conversion efficiency, which is critical in battery-powered systems. Boost converters sit within the broader power management IC hierarchy, alongside buck (step-down), buck-boost, and charge-pump regulators. Key differentiating features of the HT79171 include its 500kHz fixed switching frequency, which permits the use of small inductors and ceramic capacitors for a compact bill of materials, its wide 2.2V to 5.0V input span that covers single-cell lithium-ion battery discharge curves (typically 2.5V to 4.2V), and its adjustable current limit. According to the Holtek datasheet, connecting a resistor of 20kOhm to 100kOhm on the OC pin scales the default 5A peak current limit down to as low as 1A, allowing designers to trade peak capability against inductor saturation margin. Architecturally, the HT79171 uses a PWM control scheme with integrated power switches optimized for low RDSON to maximize efficiency at multi-amp load currents. The synchronous rectification stage avoids the large diode-drop losses that would otherwise dominate at low output voltages, improving light-load behavior and overall conversion efficiency. Internal protection features include cycle-by-cycle peak current limiting and fault handling suitable for battery-powered designs. Typical applications include portable power banks (the primary documented use case), lithium-battery-powered portable equipment, and any 2.2V to 5.0V input boost regulation rail up to 2A continuous output. The 500kHz switching frequency supports small-footprint USB power bank PCBs. A key design consideration is inductor selection: the inductor saturation current must exceed the configured peak current limit with margin, since the OC pin setting directly determines peak inductor current. This page synthesizes distributor availability data, the official Holtek datasheet, and end-of-life cross-reference information into a single engineering resource not found on any single source page.
HUB2200-S - 2200 µF Hold-up Box for VIPAC | Vicor
The Vicor HUB2200-S is a 2200 µF hold-up capacitor module designed as a dedicated accessory for the Vicor VIPAC family of component power front-end systems. Packaged as a sealed hold-up box/arm sized at 2.858 inches, it provides the bulk energy storage required to ride through input-voltage dropouts and brownouts that would otherwise reset or interrupt downstream DC-DC converter rails. Within the broader VIPAC ecosystem, the HUB2200-S plays the role of an external hold-up (energy storage) module. A VIPAC front-end is a complete AC-DC or DC front-end subsystem; the HUB2200-S bolts onto it and adds capacitance so that, when the input bus sags, the downstream converter modules see a sustained input voltage long enough to maintain regulation. This category of hold-up capacitor belongs to the larger family of bulk energy storage accessories used with modular AC-DC front-ends and DC-DC hold-up circuits. Common synonyms for these modules are "hold-up box," "hold-up capacitor," "bulk storage module," and "DC hold-up accessory." Key features of the HUB2200-S include a 2200 µF bulk capacitance rating, a hold-up box/arm form factor of 2.858 in, and electrical/mechanical compatibility with all VIPAC-family front-end power supplies. Each module is engineered, tested, and supplied by Vicor, the original manufacturer of the VIPAC platform, ensuring that hold-up time, inrush behavior, and discharge characteristics match the front-end's published specifications. The module connects to the VIPAC via the dedicated hold-up interface on the front-end chassis and is intended to be field-replaceable without desoldering. Technically, the HUB2200-S is built around low-ESR aluminum electrolytic capacitor technology optimized for high-energy pulse discharge rather than ripple filtering. The 2.858 in package is keyed to the VIPAC hold-up rails, providing both positive and negative polarity protection. It is specified for use across the industrial temperature range typical of VIPAC deployment and is integrated into the front-end's safety/ground scheme. Designers typically select the capacitance value to achieve a target hold-up time at a given minimum input voltage, using Vicor's published hold-up time vs. capacitance curves. Typical applications include industrial process-control PLCs, factory-automation controllers, railway signaling electronics, military COTS power subsystems, and any VIPAC-powered system that must comply with ride-through specifications such as SEMI F47 or IEC 61000-4-11. The HUB2200-S is also used in medical and test & measurement instrumentation where brief input-voltage sags cannot be allowed to corrupt measurements or reboot processors. When designing with the HUB2200-S, verify the VIPAC front-end variant it is mating to - different VIPAC SKUs accept different hold-up box sizes, and pairing the wrong value can either under-size hold-up time or cause the front-end's inrush limiter to interpret the capacitance as a fault. Always consult the VIPAC datasheet and the HUB2200-S installation guide before substitution. This page synthesizes distributor pricing, alternatives sourcing notes, and practical VIPAC integration guidance not found in a single manufacturer datasheet.
ICE2HS01GXUMA1 - Half-Bridge LLC Resonant Mode Controller | Infineon
The Infineon ICE2HS01GXUMA1 is a high-performance resonant mode controller IC specifically designed for high-efficiency LLC resonant converters with secondary synchronous rectification, housed in a 20-pin PG-DSO-20-45 package. It is a buck regulator / step-down DC-DC controller IC supporting positive, isolation-capable output topologies for switch-mode power supplies. A resonant mode controller is a type of DC-DC switching controller that drives the primary switches of an LLC resonant converter. LLC (inductor-inductor-capacitor) converters belong to the family of resonant converters, which are a sub-class of switch-mode power supplies (SMPS) and ultimately part of the broader power management IC (PMIC) hierarchy. The ICE2HS01G family implements a new control technique that enables synchronous rectification in LLC converters operating on the secondary switching current in both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) conditions, eliminating the need for a dedicated secondary-side synchronous rectification controller IC. Key features include integrated half-bridge gate drivers capable of driving the primary MOSFETs, adaptive dead-time control, capacitive mode protection, and built-in synchronous rectification control. The device operates as the controller of choice for high-density server, telecom, and industrial SMPS designs where efficiency targets such as 80 PLUS Titanium must be met. Its secondary-side synchronous rectification control capability allows direct drive of low-voltage SR MOSFETs from the controller's secondary-side timing outputs. Technically, the ICE2HS01G is built on a bipolar-CMOS-DMOS (BCD) process and provides a fixed-frequency or variable-frequency control scheme with frequency modulation for output voltage regulation. The half-bridge driver outputs deliver the high-side/low-side gate drive signals with integrated bootstrap support for the high-side switch, and the device includes comprehensive protection features such as over-current protection (OCP), over-voltage protection (OVP), and overtemperature protection (OTP). Typical applications include 600 W to 2 kW LLC resonant converter power supplies for server and data-center 12 V / 48 V rails, telecom rectifier front-ends, industrial SMPS, and high-efficiency LED TV / display power supplies. The synchronous rectification control extends usable efficiency across the load range, especially at light loads where conventional diode rectification would dominate losses. When designing with the ICE2HS01GXUMA1, ensure the resonant tank (Lr, Lm, Cr) is properly tuned for the application's input voltage range and load profile. Place the bootstrap capacitor close to the high-side driver pin and respect the minimum dead-time requirements to prevent shoot-through. The synchronous rectification outputs must be correctly phased with the secondary-side MOSFETs to avoid body-diode conduction losses. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering value beyond raw specification listing.
ICE2PCS01GXUMA1 - CCM PFC Controller, 65kHz, DSO-8 | Infineon
The Infineon ICE2PCS01GXUMA1 is a standalone 8-pin Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller IC in a PG-DSO-8 package, designed for active PFC boost pre-converters operating from 50 kHz up to 315 kHz. It belongs to Infineon's second-generation ICE2PCS0x/G family built on BiCMOS technology, integrating a trimmed 3V internal reference, an improved internal oscillator, and direct bulk-capacitor over-voltage protection. The G variant carries a wide Vcc operating range to simplify auxiliary supply design in universal-input offline converters. A Power Factor Correction (PFC) controller is a critical power management integrated circuit that shapes the input current waveform of an AC-DC converter to be in phase with the input voltage, raising the power factor toward unity (typically >0.99) and reducing harmonic distortion to meet regulatory standards such as IEC 61000-3-2. Within the broader system hierarchy, PFC controllers sit between the input rectifier and the bulk capacitor, ahead of the main DC-DC stage; they are categorized as power management ICs (PMICs) and specifically as analog mixed-signal controllers rather than digital DSP-based solutions. Key features include a 3V trimmed internal reference for precise output regulation, an adjustable switching frequency range of 50-315 kHz set by a single external resistor, integrated brown-out protection, over-voltage protection on the output bulk capacitor, under-voltage lockout, and cycle-by-cycle peak current limiting. The BiCMOS process combines bipolar drive capability for the gate output stage with CMOS logic for low quiescent current, yielding an efficient controller that drives an external boost MOSFET with rail-switching speeds suited to 600V-class silicon. Typical applications include universal-input (85-265 VAC) front-end PFC stages for desktop PC and server SMPS, 80+ Platinum and Titanium compliant ATX power supplies, industrial variable-frequency drives (VFD), telecom rectifier modules, and LED driver front-ends where a clean sinusoidal input current is required. The DSO-8 package allows hand-solderable assembly and straightforward layout for low-power CCM boost converters up to several hundred watts. When designing with the ICE2PCS01GXUMA1, ensure the gate-drive loop to the external boost MOSFET is kept short to minimize ringing, and select the current-sense resistor value to keep peak inductor current within the controller's cycle-by-cycle limit. The brown-out threshold and PFC output regulation loop should be validated at both low-line (85 VAC) and high-line (265 VAC) to guarantee regulation across the universal mains range.
ICE2PCS02GXUMA1 - CCM PFC Controller 65kHz PG-DSO-8 | Infineon
The Infineon ICE2PCS02GXUMA1 is a 2nd-generation Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller in an 8-pin PG-DSO package, switching at a typical frequency of 65 kHz and built on Infineon's BiCMOS process technology. The device integrates a trimmed internal reference of 3V, a transconductance error amplifier for the voltage loop, and average-current-mode control for the boost inductor, achieving near-unity power factor across universal AC line inputs. According to the Infineon datasheet, the controller supports programmable switching frequency up to 250 kHz and a maximum duty cycle of 95%. A PFC (Power Factor Correction) controller is a critical analog IC used in AC-DC power supplies to shape the input current waveform so it tracks the AC line voltage. By switching a boost converter at high frequency and modulating the duty cycle to follow the rectified mains, the controller forces the input current to look sinusoidal and in phase with the voltage. This reduces harmonic distortion (THD), helps the end product meet regulatory standards such as IEC 61000-3-2, and improves the real power drawn from the AC mains. PFC sits in the power management IC hierarchy under AC-DC controllers, alongside flyback controllers and LLC resonant controllers. Key features of the ICE2PCS02GXUMA1 include a wide supply range for VCC, internal soft-start, undervoltage lockout (UVLO), over-voltage protection on the feedback pin, and open-loop detection. Its average current control architecture rejects line-frequency disturbances, providing stable operation in CCM under heavy loads. Compared to the earlier ICE1PCS01/02 generation, the trimmed 3V reference tightens output regulation accuracy, and the BiCMOS design reduces quiescent current draw. Typical applications include 80 PLUS-compliant PC silver/gold ATX power supplies, server SMPS modules, industrial SMPS with universal mains input (90-264 VAC), flat-panel TV power boards, and LED driver front-end stages requiring low THD. The 8-pin PG-DSO package with exposed pad offers excellent thermal dissipation in a small PCB area, and the wide frequency range enables optimization between magnetic size and switching loss. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.
ICE2PCS05GXUMA1 - CCM PFC Controller, 50-250kHz, 8-SOIC | Infineon
The Infineon ICE2PCS05GXUMA1 is a 2nd-generation Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller IC housed in an 8-pin PG-DSO package. Built on Infineon's BiCMOS process, it integrates the control loop, gate driver, and protection features required to build a boost-mode PFC pre-regulator operating from the universal AC mains. Key programmable parameters include a switching frequency of 50 kHz to 250 kHz, a maximum duty cycle of 95% at 25 kHz, and an internal trimmed 3 V reference for the voltage loop, with internal current-loop reference trimming for accurate average-current-mode control. A PFC controller is a specialized power-supply control IC that forces the input current of an AC-DC converter to follow the sinusoidal line voltage, raising the power factor toward unity and meeting regulatory harmonic standards such as IEC 61000-3-2. In the broader system hierarchy, the PFC stage sits upstream of the main DC-DC converter in switch-mode power supplies; it belongs to the family of AC-DC controllers, which are a subset of power management ICs and ultimately of analog mixed-signal semiconductors. Key features include a wide VCC operating range of 11 V to 25 V, an internal oscillator with external frequency-setting resistor, average-current control with external loop compensation, and a dedicated bulk-capacitor over-voltage protection (OVP) comparator for direct sensing of the boost output. The IC also provides undervoltage lockout, soft-start, and open-loop/open-frame protection, enabling compliance-mode designs with minimal external parts count. The 8-pin package supports compact, low-cost PFC stages for power supplies up to approximately 300 W. Typical applications include 80 PLUS-compliant desktop PC and server SMPS front ends, industrial variable-frequency drives and UPS systems, LED lighting drivers with high PF requirements, and white-good appliance power supplies. The wide VCC range and programmable frequency make it well-suited to both cost-sensitive consumer designs and higher-power industrial converters. When designing with this part, place the current-sense resistor close to the source of the external boost MOSFET to minimize parasitic inductance, and verify that the bulk-cap OVP divider ratio matches your output rail tolerance band. The information on this page synthesizes distributor pricing, drop-in alternatives, and design considerations not assembled in any single manufacturer document.
ICE2QR2280GXUMA1 - 800V QR Flyback PWM Controller | Infineon
The Infineon ICE2QR2280GXUMA1 is an integrated quasi-resonant flyback PWM controller with an integrated 800V avalanche-rugged CoolMOS power switch, housed in a 12-pin PG-DSO-12-10 package. The device combines a current-mode quasi-resonant controller with a 800V/2.62 ohm (max) MOSFET and a startup cell, switching at a 52 kHz nominal frequency and reaching <100 mW standby power through Active Burst Mode. A quasi-resonant flyback controller is a type of AC-DC switched-mode power supply (SMPS) controller that switches the primary MOSFET near the drain-voltage valley, minimizing turn-on switching losses and EMI. It belongs to the broader class of offline PWM controllers within the power management IC hierarchy, used to convert rectified AC mains into isolated DC voltages for appliances, adapters, and industrial auxiliary supplies. Key features include a 800 V breakdown voltage on the integrated MOSFET, a 10.5 V to 27 V Vcc supply range with 18 V startup threshold, 50% maximum duty cycle, integrated current-mode control, and Active Burst Mode for sub-100 mW standby. The PG-DSO-12-10 package provides a thermally enhanced exposed-pad footprint suitable for 20 W-class auxiliary power designs without external heatsinking. The device uses Infineon's CoolMOS technology with an avalanche-rugged 800V cell, allowing direct rectification of universal AC mains (85-265 VAC) without additional input protection. The quasi-resonant valley-skipping controller adaptively shifts switching frequency based on load, optimizing efficiency across light and full-load conditions. Typical applications include low-power SMPS adapters, white goods auxiliary supplies, standby rails in white goods and TVs, smart meter and IoT device power, and industrial control auxiliary supplies. The 20 W power level makes the part well-suited for always-on appliances requiring ENERGY STAR standby compliance. When designing, ensure transformer leakage inductance is below 5% to prevent MOSFET avalanche overstress, and follow the reference snubber circuit from the manufacturer datasheet. The Vcc capacitor must be sized to sustain 18 V startup and 10.5 V UVLO thresholds under all load transients. This page synthesizes distributor pricing, drop-in same-package alternatives from the CoolSET-Q1 family, and practical design notes not collected in any single place on the manufacturer datasheet.
ICE2QS02GXUMA1 - 300W Quasi-Resonant Flyback PWM Controller | Infineon
The Infineon ICE2QS02GXUMA1 is a quasi-resonant (QR) current-mode flyback PWM controller IC in a PG-DSO-8 package, targeting power-conversion applications up to 300 W. It supports a switching frequency range of 20 kHz to 150 kHz, where the controller self-adjusts to the valley of the drain-voltage waveform to minimize switching losses and reduce EMI. The device is part of Infineon's CoolSET family and is designed for quasi-resonant offline flyback converters, offering a blend of high efficiency, low standby power, and integrated protection features. According to Infineon's product brief, the controller is intended for main converters in auxiliary-supplied systems where an external startup cell is unnecessary. A quasi-resonant flyback controller is a type of AC-DC PWM controller that operates the MOSFET in a manner that forces turn-on at a valley of the drain ringing after the transformer demagnetizes. This is a sub-category of current-mode PWM controllers within the broader family of offline AC-DC switching regulators. The quasi-resonant control scheme sits between fixed-frequency hard-switched PWM and full resonant topologies, offering better EMI, lower switching losses, and higher efficiency than hard-switched converters at the cost of a variable frequency that complicates EMI filter design. Key features include a 650 V integrated MOSFET section (typical for CoolSET QR controllers), frequency modulation with active burst mode for ultra-low standby power below 100 mW, and a comprehensive protection set: over-current protection (OCP), over-load protection (OLP), over-voltage protection (OVP), and over-temperature shutdown (OTP). The PG-DSO-8 package offers a compact footprint suitable for dense adapter designs, and the device's start-up behavior and brown-out handling are tailored for 85-265 V AC universal-input applications. The controller uses a current-mode control loop with a built-in transconductance error amplifier. The quasi-resonant valley-switching is achieved by sensing the auxiliary-winding demagnetization time and triggering the next cycle at the detected valley. The 20 kHz minimum switching frequency prevents audible noise, while the 150 kHz maximum frequency cap keeps switching losses manageable. Typical applications include LED lighting drivers up to 150 W, auxiliary power supplies for white goods, and small-format adapters for consumer electronics. The device's ultra-low standby power and QR operation make it especially attractive for ENERGY STAR and EU Ecodesign-compliant products where standby power below 100 mW is mandatory. When designing with this device, ensure the sense resistor on the current-sense pin is sized for the desired OCP threshold and that the gate-drive loop is kept short to avoid parasitic turn-on. The feedback loop compensation should account for the variable switching frequency that is inherent in quasi-resonant operation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ICE3A2065Z - 650V CoolSET-F3 Offline SMPS Controller | Infineon
The Infineon ICE3A2065Z is an off-line SMPS current-mode controller with an integrated 650V Depletion CoolMOS power switch and 650V startup cell, packaged in a 7-pin PG-DIP-7-1 (through-hole, PDIP-7) housing. It targets flyback topologies at a fixed 100 kHz switching frequency, delivers up to 28 W output power in typical adapter and auxiliary-supply designs, and supports Active Burst Mode for standby power consumption below 100 mW at no load. On-resistance (RDS(on)) is rated at 1.05 ohm maximum at 25 °C, with ESD protection of 3.0 kV HBM. An SMPS current-mode controller with integrated MOSFET is a category of power-supply IC that combines the control loop, gate driver, and high-voltage power switch in a single die. The current-mode architecture regulates the output by sensing peak primary current and comparing it to an error-amplifier-derived threshold on every switching cycle. By integrating the 650V MOSFET and startup cell, the CoolSET-F3 family reduces external component count, simplifies PCB layout, and improves reliability compared with discrete PWM-controller-plus-MOSFET designs. Key specifications include a VCC supply range of 8.5 V to 21 V, quiescent current of 7.1 mA, maximum drain current of 2.0 A pulsed, junction temperature range of -25 °C to 130 °C, and thermal resistance (RthJA) of 96 K/W. The integrated 650V CoolMOS withstands typical 85-265 VAC universal-input offline rectified rails with substantial derating margin. A Current Sense (CS) pin provides cycle-by-cycle peak-current limiting, while the internal current-mode PWM comparator generates the duty cycle from the CS signal and the internal reference ramp. Typical applications include low-power AC-DC adapters (sub-30 W), auxiliary standby supplies in white goods and appliances, DVD/STB standby rails, and low-power LED driver front ends. The wide 85-265 VAC input range and Active Burst Mode make it suitable for designs seeking ENERGY STAR or EuP Tier-2 standby compliance without an additional burst-mode controller IC. When designing with the ICE3A2065Z, size the CS sense resistor for peak primary current at minimum VIN, account for the 96 K/W thermal resistance when laying out PCB copper area, and ensure the VCC hold-up capacitor covers the IC's start-up sequencing before auxiliary winding takes over. Note that the part has reached end-of-life for new designs; Infineon recommends the ICE3A2065ELJ as the active replacement (different pinout and package - PCB rework required).
ICE3AR1080JGXUMA1 - 800V CoolSET Flyback 100kHz | Infineon
The Infineon ICE3AR1080JGXUMA1 is an enhanced 800 V MOSFET version of the CoolSET-F3R80 family, integrating an 800 V-rated CoolMOS power switch, a current-mode PWM controller, and a startup cell in a single PG-DSO-12-19 package. It implements flyback topology at a fixed 100 kHz switching frequency and includes a brownout feature, active burst mode for light-load standby, and built-in protections such as overload, over-temperature, open-loop, and VCC under-voltage lockout. An AC-DC offline switcher IC of this type combines the power MOSFET and the control IC in one package, enabling compact isolated and non-isolated SMPS designs. In the broader hierarchy, this part belongs to the CoolSET family of integrated power switches, which itself falls under AC-DC converters, which is a sub-category of power management ICs. The integrated approach simplifies flyback converter design for adapters, auxiliary supplies, and standby converters by reducing external component count and PCB footprint. Key features include an integrated 800 V avalanche-rated CoolMOS switch that tolerates harsh line transients, frequency jitter for improved EMI signature, and auto-restart protection for fault conditions. The brownout detection prevents the converter from operating at low input voltages where the transformer can saturate. Active burst mode reduces standby power consumption to well below 100 mW, supporting energy-efficiency regulations. The device operates from a VCC supply of 10.5 V to 25 V and supports a typical flyback power range up to around 15-20 W, depending on thermal design. Internally, the current-mode controller uses a 1.0 V peak-current sense threshold and supports duty cycle up to approximately 75%, enabling wide-range universal-mains operation (85 VAC to 265 VAC). Typical applications include smartphone and tablet chargers, white-goods auxiliary supplies, set-top box standby converters, DVD/Blu-ray auxiliary rails, and industrial metering or IoT gateway power supplies. The 800 V MOSFET rating provides additional safety margin in regions with unstable mains. When designing with this part, pay attention to the snubber network around the integrated MOSFET drain pin to limit voltage overshoot, and select a transformer with adequate primary inductance to keep peak currents within the 1.0 V sense threshold divided by the external sense resistor. This page synthesizes distributor pricing, drop-in alternatives from the CoolSET family, and practical design notes not found in a single manufacturer document.
ICE3AS03LJGXUMA1 - 100kHz CoolSET Flyback PWM Controller | Infineon
The Infineon ICE3AS03LJGXUMA1 is a 100 kHz fixed-frequency current-mode flyback PWM controller with integrated 500 V startup cell, designed for offline AC/DC converters up to 300 W. Housed in an 8-pin PG-DSO package, it integrates the power MOSFET driver and CoolSET protection features, simplifying isolated SMPS designs for adapters, set-top boxes, and LCD TV auxiliary supplies. The part operates from an 10.5 V to 25 V VCC supply and offers <100 mW standby power for energy-efficient standby operation. A CoolSET AC/DC flyback controller is a self-contained power supply building block that combines a current-mode PWM controller with an internal high-voltage startup transistor and a MOSFET driver on a single monolithic die. By integrating the startup cell, the controller eliminates the external startup resistor chain that would otherwise consume continuous power from the high-voltage rail, dramatically reducing standby losses. The current-mode topology falls within the broader category of switched-mode power supply (SMPS) controllers, which sit hierarchically above linear regulators and below transformer/inductor-based power conversion systems in the power management hierarchy. Key differentiating features include a 500 V integrated startup cell that withstands surge events on rectified mains, active burst mode for sub-100 mW standby power, built-in soft-start to limit inrush current, and frequency jittering for low EMI. The 100 kHz fixed switching frequency is internally trimmed, eliminating external RC timing components. Protection features include over-current protection (OCP), over-load protection (OLP), over-voltage protection (OVP), and VCC under-voltage lockout (UVLO). The auto-restart recovery scheme minimizes external component count while still satisfying safety agency requirements. From an architectural perspective, the ICE3AS03LJG family uses Infineon's 700 V CoolMOS-class technology for the integrated high-voltage section, with a precision current-sense input for cycle-by-cycle peak current control. The internal reference, oscillator, and PWM comparator are trimmed at wafer level for tight frequency tolerance. The current-mode control loop provides inherent input voltage feedforward, simplifying feedback compensation compared to voltage-mode architectures. Typical applications include low-power AC/DC adapters (5 W to 27 W mobile chargers), set-top box auxiliary supplies, LCD TV standby rails, white goods auxiliary power, and any isolated flyback topology requiring sub-100 mW standby consumption. Design considerations should account for the PG-DSO-8 thermal pad connection, the VCC hold-up capacitor sizing for brown-out ride-through, and the use of a Y-cap or transformer shield to meet EMI standards.
ICE3BR0680JZ - 800V CoolSET Fixed-Frequency SMPS Controller | Infineon
The Infineon ICE3BR0680JZ is a fixed-frequency CoolSET off-line SMPS current-mode controller integrating an 800 V avalanche-rugged CoolMOS power switch, a startup cell, and a current-mode flyback PWM controller in a single PG-DIP-7 package. It supports up to 40 W of output power for 15.75 A peak current capability with VDS max of 800 V and RDS(on) max of 0.71 Ω, switching at 65 kHz nominal frequency. The minimum supply voltage VCC min is 10.5 V, enabling robust startup from rectified mains. The integrated 800 V MOSFET eliminates external switch components and provides a compact isolated converter footprint. An SMPS current-mode controller is a power-supply integrated circuit that regulates the output of a switched-mode power supply by sampling both output voltage error and primary-side peak current each switching cycle, then commanding an internal power MOSFET. It belongs to the broader hierarchy of AC-DC converters, flyback controllers, and integrated power management ICs used in offline power designs. This category enables compact isolated power conversion for white goods, adapters, and auxiliary supplies. Key features of the ICE3BR0680JZ include an input brownout detection pin (BBA), active burst mode operation for standby power below 100 mW, extendable blanking time for overload protection, and an external auto-restart enable path. The active burst mode reduces no-load consumption to extremely low standby levels. Internal protection features include overcurrent, overvoltage, overtemperature, and open-loop detection with auto-restart behavior. Typical applications include 40 W isolated flyback adapters, white-goods auxiliary power supplies, DVD/STB standby rails, and industrial low-power offline converters. The wide 800 V drain rating allows universal-mains operation (85-265 VAC) without additional input protection components. Internal current-mode control simplifies loop compensation and provides inherent cycle-by-cycle current limiting. When designing with this device, ensure the VCC reservoir capacitor and BBA blanking-time network values are selected per Infineon application notes. The PG-DIP-7 package provides 7 through-hole pins suitable for wave or hand soldering and allows isolated creepage/clearance per safety standards.
ICE3BR1765JXKLA1 - 650V CoolSET F3R Offline SMPS | Infineon
The Infineon ICE3BR1765JXKLA1 is an integrated AC-DC power stage from the CoolSET F3R family that combines a 650 V CoolMOS power MOSFET with a fixed-frequency current-mode PWM controller in a single 8-pin PG-DIP-8 through-hole package. The integrated MOSFET is specified at VDS max of 650 V and RDS(on) max of 1.96 ohm, while the controller block runs at a fixed switching frequency of 65 kHz and supports a maximum output power of 25 W in flyback topology. The VCC supply range spans 10.5 V to 25 V, enabling broad input mains coverage including universal 85-265 VAC offline converters. A flyback converter is the most common topology for low-to-medium power isolated AC-DC switching power supplies, where the transformer's primary inductance stores energy during the MOSFET on-time and transfers it to the secondary during the off-time. The integrated power-stage approach (CoolSET) eliminates the need for an external MOSFET, gate driver, and many discrete protection parts - reducing BOM count, PCB area, and overall system cost for sub-25 W applications. This category sits within AC-DC converters -> power management ICs -> semiconductor devices. Key features include built-in 650 V avalanche-rated CoolMOS, integrated soft-start, frequency jittering for low EMI, auto-restart protection for open-loop, VCC overvoltage, overload, and overtemperature faults. The 65 kHz fixed frequency keeps the fundamental switching noise out of the AM radio band and simplifies input EMI filter design. The PG-DIP-8 package provides 8 mm of creepage distance between high-voltage drain pins and low-voltage signal pins, which is critical for offline safety isolation. Typical applications include mobile phone chargers, standby auxiliary supplies for white goods and TVs, DVD player standby rails, and any sub-25 W isolated AC-DC adapter or auxiliary SMPS. The universal VCC range also supports wide-input industrial auxiliary supplies. When designing with this device, ensure the snubber network across the transformer's primary leakage inductance is properly sized to keep the drain voltage spike below the 650 V BVDSS rating. The auto-restart fault timer is set by an external capacitor on the BAULT pin and should be reviewed against the application's hold-up requirements.
ICE3PCS01GXUMA1 - CCM PFC Controller, 14-pin DSO | Infineon
The Infineon ICE3PCS01GXUMA1 is a 14-pin standalone Power Factor Correction (PFC) controller IC designed for active Continuous Conduction Mode (CCM) boost converters operating from 85 VAC to 265 VAC universal mains input, housed in a PG-DSO-14 surface-mount package with adjustable switching frequency from 21 kHz to 100 kHz. It is the third-generation CoolSET-compatible PFC controller and targets converter efficiencies above 90% at full load with a trimmed internal 2.5 V reference and integrated digital voltage-loop compensation that eliminates external compensation components. A Power Factor Correction (PFC) controller is a specialized power management IC that shapes the input current drawn from the AC mains to be in phase with the input voltage, achieving a power factor close to unity (typically >0.99). PFC controllers sit in the power management hierarchy between the bridge rectifier and the bulk DC link capacitor in AC-DC power supplies; they are mandatory for switched-mode power supplies above 75 W to meet regulatory standards such as IEC 61000-3-2 and ENERGY STAR. CCM operation specifically means the boost inductor current never falls to zero during a switching cycle, which yields lower peak currents and lower EMI than critical conduction mode (CrCM/CRM) at high power levels above 300 W. The ICE3PCS01GXUMA1 integrates a totem-pole gate driver capable of 1.5 A source / 2 A sink, an internal 2.5 V trimmed bandgap reference, soft-start control, under-voltage lockout, and over-current protection with a typical quiescent current of 1.4 mA. The cascaded control architecture implements an inner average-current loop and an outer voltage loop with digital compensation, eliminating the traditional RC component network. The device supports boost topologies commonly used in digital TV power supplies, industrial SMPS, and high-power LED drivers requiring PF >0.9 and low total harmonic distortion. Typical applications include 100 W to 1000 W boost PFC front-end stages for ATX power supplies, flat-panel TV converters, e-bike chargers, industrial SMPS modules, and high-bay LED drivers. The wide 85-265 VAC input range makes it a single design platform for global products. Compared to the previous-generation ICE2PCS0x family, the third-generation ICE3PCS01G offers lower quiescent current, tighter reference tolerance, and reduced external BOM count due to integrated digital voltage-loop compensation. When designing with this controller, observe the IC's 11 V minimum VCC supply requirement and provide adequate bulk capacitance on the VCC pin with a 100 nF ceramic bypass close to the package. The current-sense resistor value must be calculated against the IC's internal 1.0 V cycle-by-cycle over-current threshold; exceeding this trips protection but should not be relied upon as a primary current limit. PCB layout must keep the gate-drive loop area minimal to avoid ringing above the 17 V gate-clamp rating. This page synthesizes distributor pricing, drop-in alternatives drawn from cross-reference data, and practical design notes compiled from the Infineon application guidance to support engineers evaluating this PFC controller for new designs and existing 100 W to 1000 W CCM PFC front-end stages.
ICE3PCS02GXUMA1 - CCM PFC Controller, 85-265VAC, 100kHz | Infineon
The Infineon ICE3PCS02GXUMA1 is a 3rd-generation standalone Power Factor Correction (PFC) controller IC for active Continuous Conduction Mode (CCM) boost converters, supplied in an 8-pin PG-DSO package. It operates directly from an 85 VAC to 265 VAC wide-range rectified AC input, provides an adjustable gate switching frequency of 21 kHz to 100 kHz, and integrates a digital control voltage loop with an internal 2.5 V reference trimmed for tight output regulation. The IC draws a typical quiescent current of 1.4 mA and supports external synchronization. A Power Factor Correction (PFC) controller is a power-management IC that shapes the input current of an AC-DC converter so it is in phase with the input voltage, raising the power factor toward unity and reducing line-frequency harmonic distortion. It belongs to the broader PMIC hierarchy: PFC controller -> AC-DC controller -> power management IC -> semiconductor. Active CCM PFC, the topology addressed by the ICE3PCS02G, is the most common technique in mid- to high-power offline converters above 75 W because it combines low peak currents with predictable boost-inductor behavior. Key features of the ICE3PCS02G family include a low 0.2 V peak-current-limit threshold that minimizes sense-resistor dissipation, integrated digital control voltage loop that removes the need for an external compensation network, adjustable gate switching frequency from 21 kHz to 100 kHz for EMI optimization, the ability to synchronize to an external frequency source, and comprehensive protection features including VCC undervoltage lockout and overcurrent protection. Compared to the 1st-generation ICE1PCS0x and 2nd-generation ICE2PCS0x families, the 3rd-generation IC offers a tighter reference and digital-loop simplification that reduces external BOM by roughly twenty components per design. The device uses Infineon's high-voltage BCD process that integrates the start-up cell, gate driver, and control logic on a single die rated for the surge environment of an offline front-end. This integration enables the compact 8-pin PG-DSO footprint and eliminates the auxiliary winding typically needed to power the controller in older designs. Typical applications include 100 W to 800 W SMPS front-ends for desktop PCs, gaming consoles, plasma/LCD televisions, and industrial power supplies requiring EN61000-3-2 compliance. The 100 kHz upper switching limit and synchronization input make it well suited to coordinate with the downstream LLC or quasi-resonant converter in two-stage converter architectures. Designers should plan for thermal management of the gate-driver dissipation at high switching frequency and for input-bridge bulk-cap sizing that determines hold-up time. The controller's wide input range allows a single board design to ship globally without input-voltage strapping. This page synthesizes distributor pricing, drop-in alternatives within the 8-pin PG-DSO footprint, and practical PFC design notes not found in the standalone manufacturer datasheet.
ICE3PCS03GXUMA1 - 8-Pin CCM PFC Controller, 85-265VAC | Infineon
The Infineon ICE3PCS03GXUMA1 is an 8-pin wide-input-range Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller IC housed in a PG-DSO-8 (SOIC-8) package, designed for active CCM PFC converters operating from 85VAC to 265VAC universal mains input. The device features an adjustable switching frequency range of 21 kHz to 250 kHz, a precision 2.5 V internal reference, integrated digital control voltage loop, low peak current limit threshold of 0.2 V, and the ability to synchronize with an external switching frequency source for coordinated multi-stage power designs. A Power Factor Correction (PFC) controller is a power management integrated circuit that shapes the input current of an AC/DC converter to be in phase with the input voltage, raising the power factor toward unity and reducing harmonic distortion. Within the broader hierarchy, a PFC controller is a type of AC/DC converter control IC, which sits under power management ICs in the semiconductor taxonomy. CCM operation means the inductor current stays continuously above zero, reducing peak current stress and EMI versus Discontinuous Conduction Mode (DCM) at high power levels. Key technical features include a low internal reference trimmed at 2.5 V for high-accuracy output voltage regulation, a very low start-up current to minimize standby losses, an integrated digital control voltage loop that eliminates external compensation components, and built-in protection functions including output overvoltage, undervoltage, open-loop, and overcurrent protection. The IC is the third generation of Infineon's CoolSET/PFC family, succeeding the ICE1PCS0x and ICE2PCS0x series with smaller footprint, fewer external parts, and improved light-load efficiency. Typical applications include 80 PLUS compliant desktop PC SMPS, 100 W to 1 kW industrial switch-mode power supplies, flat-panel TV power supplies, server and telecom rectifiers, LED driver front-end PFC stages, and white-goods inverter power boards. The wide 85-265 VAC input range makes the part suitable for global-market products that must operate from both 115 V and 230 V nominal mains without component changes. When designing with this controller, place the current-sense resistor between the boost MOSFET source and ground using short, wide traces to avoid switching noise injection. Use a low-ESR X2-rated film capacitor at the rectified mains input, and ensure the gate-drive trace to the external boost MOSFET is kept short to limit parasitic inductance and ringing.