L6599DTR - 600V Resonant Half-Bridge Controller IC | STMicroelectronics
N.º de pieza: L6599DTR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.55 | $25,50 |
| 100 | $2.18 | $218,00 |
| 500 | $1.82 | $910,00 |
| 1.000 | $1.55 | $1.550,00 |
L6599DTR Descripción general
A resonant half-bridge controller is a type of switching power supply controller that drives a series resonant tank (typically LLC) to achieve zero-voltage switching (ZVS) on the primary MOSFETs, dramatically reducing switching losses compared to hard-switched PWM converters. Within the broader power management hierarchy, the L6599 belongs to the SMPS (switched-mode power supply) controller family, which sits above discrete gate drivers and below complete AC-DC or DC-DC converter modules. This category enables high-efficiency power conversion across industrial, consumer, and computing applications.
The L6599DTR provides adjustable minimum frequency via RT timing resistor, soft-start programmability, and a dedicated PFC interface that can inhibit or synchronize the front-end PFC controller during converter startup, light-load, or fault conditions. Its 600 V high-side driver tolerates the full rectified mains voltage with substantial margin, making it suitable for universal-input (90-264 VAC) designs without an external bootstrap driver. The integrated anti-cross-conduction logic and adaptive dead-time generation further simplify the gate-drive network.
Typical applications include 90 W to 400 W AC-DC adapters (often paired with a PFC controller such as the L6563 or L6562A), LCD TV and monitor power supplies, all-in-one PC power units, and industrial switch-mode power supplies requiring high efficiency and low EMI. The resonant topology inherently delivers low EMI, enabling designs that meet EN55022 Class B without extensive filtering. The device is also widely used in LED driver power stages where high efficiency and compact magnetics are required.
When designing with the L6599DTR, ensure that the bootstrap capacitor is sized for the chosen switching frequency and high-side on-time, and route the BOOT pin trace as short as possible. The OSC pin capacitor and resistor set both the minimum switching frequency and the soft-start time constant, so their tolerances directly affect burst-mode entry and exit thresholds in light-load operation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para L6599DTR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con L6599DTR (mismo factor de forma y huella) — difiere en Overcurrent Protection, PFC Interface, Package, Topology.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
L6599ADTR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
L6599D
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
L6599DTR-TR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
L6599D013TR
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
NCP1396ADR2G
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
IRS27951STRPBF
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
L6599DTR Valores máximos y características eléctricas
| Topología | Resonant half-bridge (LLC, series resonant) |
| Duty Cycle | 50% complementary, 180° out-of-phase |
| Maximum Operating Frequency | 500 kHz |
| VCC Supply Voltage | 8.85 V to 16 V |
| High-Side Driver Rail | 600 V (bootstrap compatible) |
| High-Side Gate Driver | Integrated with bootstrap diode |
| Output Current (per driver) | 800 mA (max, per datasheet) |
| Oscillator Type | Voltage-controlled, variable frequency |
| Protección contra sobrecorriente | Two-level (frequency shift + latched shutdown) |
| Disable Input | Latched disable |
| PFC Interface | Yes (synchronization/output) |
| Brown-out Protection | Yes (LINE pin) |
| Arranque suave | Programmable via soft-start pin |
| Temperatura de funcionamiento | -40 °C to +150 °C |
| Encapsulado | SO-16 (narrow body) |
| Tipo de montaje | Surface Mount |
| Lead Free / RoHS | Lead Free, RoHS Compliant |
Configuración de pines de L6599DTR
| Pin 1 | CSS — Soft-start capacitor. Programs soft-start time constant. |
| Pin 2 | RF_START — Soft-start frequency setting resistor. Sets the maximum frequency during startup. |
| Pin 3 | RF — Oscillator frequency setting resistor. Programs the minimum switching frequency. |
| Pin 4 | DCP — Overcurrent protection delay capacitor. Sets the time from OCP detection to latched shutdown. |
| Pin 5 | OCP — Overcurrent protection input. Senses resonant tank current via external resistor divider. |
| Pin 6 | EN1 — Half-bridge enable input. Active-high logic input to start switching. |
| Pin 7 | VCC — Supply voltage input (8.85 V to 16 V). Decouple with 10 µF + 100 nF. |
| Pin 8 | GND — Ground return for both low-side driver and signal circuits. |
| Pin 9 | LVG — Low-side gate drive output. Drives the low-side MOSFET of the half-bridge. |
| Pin 10 | OUT — High-side gate-drive floating ground / half-bridge output. Connect to half-bridge midpoint. |
| Pin 11 | HVG — High-side gate drive output. Drives the high-side (floating) MOSFET of the half-bridge. |
| Pin 12 | VB — Bootstrap supply for high-side driver. Connect bootstrap diode and capacitor from VCC. |
| Pin 13 | VBOOT — Bootstrap supply rail (internal). Internally connected to BOOT pin for high-side driver. |
| Pin 14 | LINE — Brown-out / line sensing input. Detects mains undervoltage and disables converter. |
| Pin 15 | PFC_OK — PFC controller interface output. Goes high when PFC bus voltage is in regulation. |
| Pin 16 | DIS — Latched disable input. Latches the controller off when pulled high. |
Aplicaciones típicas
L6599DTR es adecuado para 6 aplicacións: AC-DC Adapter (90-150 W, Universal Mains), LCD TV / Monitor Power Supply, All-in-One PC and Notebook Adapter, Industrial Switch-Mode Power Supply (SMPS), LED Driver High-Voltage DC-DC Stage, Telecom and Server Auxiliary Power.
AC-DC Adapter (90-150 W, Universal Mains)
The L6599DTR is the controller of choice for 90-150 W universal-input AC-DC adapters, especially when paired with a front-end PFC controller such as the L6563 or L6562A. Its 600 V high-side driver tolerates the full rectified 380 VDC bus, while the resonant LLC topology achieves 92-95% efficiency at full load with zero-voltage switching on the primary MOSFETs, eliminating switching losses and reducing EMI to meet EN55022 Class B without extensive filtering. Designers typically set the nominal switching frequency in the 80-150 kHz range to balance magnetics size against switching loss, using the RF_START and CSS pins to program soft-start and burst-mode thresholds for low standby power below 0.5 W.
Recomendado
LCD TV / Monitor Power Supply
The L6599DTR drives the LLC half-bridge in LCD TV and monitor power supplies from 70 W up to 400 W, where its 50% complementary duty cycle and adaptive dead-time generation ensure clean zero-voltage switching across the wide load range required for backlight dimming. The integrated PFC_OK interface holds the front-end PFC stage off during light load, enabling standby power below 0.3 W for ENERGY STAR compliance. The two-level overcurrent protection with frequency shift provides graceful overload handling before latched shutdown, critical for consumer electronics that must survive output short circuits without catastrophic failure.
Recomendado
All-in-One PC and Notebook Adapter
The L6599DTR's high oscillator accuracy and programmable minimum frequency suit all-in-one PC and high-wattage notebook adapters where tight output regulation and dynamic load response are required. Its SO-16 package and integrated bootstrap diode minimize external component count, allowing designs to fit into compact adapter enclosures. The brown-out protection on the LINE pin detects mains sag and safely shuts down the converter, preventing saturation of the resonant tank at low input voltage. Combined with PFC controller, the solution achieves 90+% efficiency to meet regulatory requirements such as 80 PLUS Bronze and ErP Lot 6.
Recomendado
Industrial Switch-Mode Power Supply (SMPS)
In industrial 24 VDC, 48 VDC, and 12 VDC SMPS applications from 100 W to 500 W, the L6599DTR delivers the rugged performance required for factory automation and process control environments. The -40 °C to +150 °C junction temperature range supports harsh ambient conditions, while the latched disable input allows external MCU or supervisory circuits to force the converter off in safety-critical applications. The resonant topology inherently produces low EMI, enabling compliance with industrial EMC standards (EN 61000-6-2, EN 61000-6-4) without bulky shielding, and the two-level OCP protects downstream loads from overcurrent events.
Recomendado
LED Driver High-Voltage DC-DC Stage
The L6599DTR is increasingly used in high-power LED drivers (100 W to 300 W) where high efficiency and long driver lifetime are paramount. The resonant LLC stage provides the high-voltage DC bus for a downstream constant-current LED buck or boost converter, and the high-frequency operation (typically 100-200 kHz) allows smaller magnetics in the resonant tank. The L6599DTR's PFC_OK pin synchronizes the front-end PFC so that the LED driver maintains high power factor (>0.95) and low THD (<10%), required by ENERGY STAR and DesignLights Consortium (DLC) standards for commercial LED luminaires.
Recomendado
Telecom and Server Auxiliary Power
The L6599DTR is found in telecom rectifier and server auxiliary supply designs where high efficiency and compactness are required. Its SO-16 footprint simplifies high-density PCB layouts for 1U and 2U form factors, while the 600 V high-side driver is fully compatible with 380 VDC telecom battery bus inputs (after rectification). The two-level OCP and latched shutdown protect expensive downstream equipment from fault conditions, and the integrated bootstrap diode reduces part count - critical for high-reliability applications. The resonant topology enables 93%+ peak efficiency, reducing cooling requirements in sealed enclosures.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para L6599DTR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | L6599ADTR | L6599D | L6599DTR-TR | NCP1396ADR2G | IRS27951STRPBF |
|---|---|---|---|---|---|---|
| Package | SO-16 | SO-16 | PDIP-16 | SO-16 | SO-16 | SO-16 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | onsemi | Infineon |
| Topology | Resonant half-bridge (LLC) | Resonant half-bridge (LLC) | Resonant half-bridge (LLC) | Resonant half-bridge (LLC) | Resonant half-bridge (LLC) | Resonant half-bridge (LLC) |
| VCC Supply Voltage | 8.85 V to 16 V | 8.85 V to 16 V | 8.85 V to 16 V | 8.85 V to 16 V | 8.9 V to 20 V | 10 V to 17 V |
| Max High-Side Rail | 600 V | 600 V | 600 V | 600 V | 600 V | 600 V |
| Max Switching Frequency | 500 kHz | 500 kHz | 500 kHz | 500 kHz | 500 kHz | 500 kHz |
| OCP Behavior | Two-level (freq shift + latched) | Two-level (freq shift + latched) | Two-level (freq shift + latched) | Two-level (freq shift + latched) | Two-level (freq shift + latched) | Adjustable |
| Bootstrap Diode | Integrated | Integrated | Integrated | Integrated | External (required) | Integrated |
| Operating Temperature | -40 °C to +150 °C | -40 °C to +150 °C | -40 °C to +150 °C | -40 °C to +150 °C | -40 °C to +125 °C | -40 °C to +125 °C |
| PFC Interface | Yes (PFC_OK pin) | Yes (PFC_OK pin) | Yes (PFC_OK pin) | Yes (PFC_OK pin) | Yes (PFC_OK pin) | Yes |
Diferenciadores clave
- Integrated 600 V high-side gate driver with bootstrap diode (frente a NCP1396ADR2G)
- Two-level OCP with frequency shift then latched shutdown (frente a IRS27951STRPBF)
- 150 °C max junction temperature vs 125 °C for competitors (frente a NCP1396ADR2G, IRS27951STRPBF)
Notas de diseño
Layout the SO-16 L6599DTR with the BOOT capacitor (typically 220 nF to 470 nF ceramic) placed within 5 mm of pins 12-13, using a wide trace for the high-side floating ground (pin 10 / OUT) directly to the half-bridge midpoint. The VCC decoupling capacitor (10 µF + 100 nF ceramic) must be within 3 mm of pins 7-8. Keep the OCP sense trace (pin 5) short and shielded from the gate-drive traces to avoid false triggering. Use a 4-layer PCB with a dedicated ground plane under the controller to minimize switching noise injection into the sensitive oscillator pins (RF, RF_START, CSS).
Do not exceed 16 V on VCC (the internal clamp is 17 V); an over-voltage event on VCC will damage the controller. Ensure the bootstrap capacitor is sized for the chosen switching frequency - at 100 kHz with 800 mA peak gate drive and 50 nC gate charge, a minimum 100 nF ceramic is required, with 220-470 nF preferred for margin. The LINE pin (brown-out) has a 1.25 V threshold referenced to a 50 µA internal current source; use a 1 MΩ / 100 kΩ divider from the rectified mains to set the brown-out trip point at 80 VAC. Per ST datasheet AN2444, the soft-start capacitor should be 100 nF to 1 µF for typical 50-200 ms startup times.
Estimated: at 200 kHz switching frequency with 800 mA peak gate current into 10 nC total gate charge per side, the L6599DTR's internal power dissipation is roughly 40-80 mW, which is well within the SO-16 thermal envelope (theta_JA ~ 150 °C/W). No heatsinking is required. However, ensure the VCC supply current stays below 25 mA and that the bootstrap refresh current (typically 1-2 mA) is properly supplied via the auxiliary winding to prevent VCC droop during high-side on-time. In thermally enclosed adapters, place the controller away from the main transformer and output rectifiers.
Información de cumplimiento
Lead Free and RoHS Compliant per STMicroelectronics product page and DigiKey listing. AEC-Q100 not applicable for industrial/consumer SMPS controllers. REACH compliance is standard for ST power management ICs.
