IRS2127STRPBF - 600V High-Side Gate Driver IC | Infineon
MPN: IRS2127STRPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.08 | $2.08 |
| 10 | $1.87 | $18.70 |
| 100 | $1.62 | $162.00 |
| 500 | $1.42 | $710.00 |
| 1,000 | $1.28 | $1,280.00 |
Drop-in alternatives for IRS2127STRPBF β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
IRS21271STRPBF
β Drop-Inπ Reference alternative (not in catalog)
IRS2128STRPBF
β Drop-Inπ Reference alternative (not in catalog)
IRS21281STRPBF
β Drop-Inπ Reference alternative (not in catalog)
IRS2127SPBF
β Drop-Inπ Reference alternative (not in catalog)
IR2127STRPBF
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$0.71 / Unit
View Datasheet βFAN73932MX
β Drop-Inπ Reference alternative (not in catalog)
IRS2127STRPBF Maximum Ratings & Electrical Characteristics
| Driver Type | High-Side Gate Driver, Single Channel |
| Number of Drivers | 1 |
| Input Type | Non-Inverting |
| Offset Voltage (Max) | 600 V |
| Gate Drive Supply Range (Motor Drive) | 12 V to 20 V |
| Gate Drive Supply Range (Automotive) | 9 V to 20 V (IRS21271 variant) |
| Source Current (Typical) | 0.29 A |
| Sink Current (Typical) | 0.6 A |
| Output Configuration | Non-Inverting, Active High |
| Logic Input Compatibility | 3.3 V and 5 V CMOS |
| Undervoltage Lockout (UVLO) | Yes (VCC and VBS) |
| Over-Current Protection | Integrated current-sense comparator with FAULT output |
| Bootstrap Operation | Floating channel designed for bootstrap supply |
| dV/dt Immunity | Tolerant to negative transient voltage, dV/dt immune |
| Operating Temperature Range | -40C to +125C |
| Package | 8-SOIC (3.90 mm Width, 0.154 inch) |
| Mounting Type | Surface Mount |
| MSL Level | MSL 3 (per JEDEC J-STD-020) |
| Lead-Free / RoHS Status | Lead-Free, RoHS Compliant (PBF suffix) |
| Manufacturer | Infineon Technologies (formerly International Rectifier) |
IRS2127STRPBF Pin Configuration
| Pin 1 | VCC β Logic supply voltage (12 V to 20 V for IRS2127) |
| Pin 2 | IN β Logic input for gate driver (CMOS 3.3 V / 5 V compatible, non-inverting) |
| Pin 3 | FAULT β Fault output indicator (active low, open-drain) |
| Pin 4 | CS+ β Current-sense comparator non-inverting input |
| Pin 5 | CS- β Current-sense comparator inverting input |
| Pin 6 | COM β Logic ground return |
| Pin 7 | VS β High-side floating supply return (switching node reference) |
| Pin 8 | VB β High-side floating supply (bootstrap supply) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
IRS2127STRPBF is suitable for 6 applications: Variable-Frequency Motor Drive, Switched-Mode Power Supply (SMPS), Industrial Inverter and Servo Drive, Solar Inverter DC-DC Stage, Uninterruptible Power Supply (UPS), HID Lighting Ballast.
Variable-Frequency Motor Drive
The IRS2127STRPBF drives the high-side IGBT or MOSFET in three-phase variable-frequency drives for industrial pumps, fans, and compressors. Its 600 V offset rating covers 400 V and 480 V rectified bus rails, while the 0.29 A source / 0.6 A sink currents switch 600 V / 50 A IGBT modules with sub-200 ns transition times. The integrated current-sense comparator with FAULT output eliminates a separate protection IC, enabling cycle-by-cycle short-circuit detection directly from the shunt resistor in the source return path. Designers typically pair three IRS2127STRPBF devices with a low-side half-bridge driver such as the IR2104STRPBF to build a complete 6-switch inverter.
Recommended
Switched-Mode Power Supply (SMPS)
The IRS2127STRPBF drives the primary-side high-side switch in half-bridge and active-clamp SMPS topologies up to 500 W. Its 600 V floating channel tolerates the rectified 400 V PFC bus, while the bootstrap supply sustains high-side drive at duty cycles up to 99%. The integrated over-current protection with FAULT output enables constant-current mode in battery chargers and LED drivers, simplifying the control loop. In a 400 V input PFC boost converter, the IRS2127STRPBF drives a 600 V SJ MOSFET at 100 kHz switching frequency with a 1 uF X7R bootstrap capacitor and a UF4007 fast-recovery bootstrap diode.
Recommended
Industrial Inverter and Servo Drive
Servo drives and industrial inverters for CNC machines, robotics, and factory automation use the IRS2127STRPBF as the high-side gate driver for the IGBT phase legs. Its 600 V rating and -9 V transient immunity on VS make it robust against the dV/dt transients generated by fast-switching 1200 V IGBT modules. The integrated CS+/CS- comparator input allows direct connection to a current-sense shunt or Hall-effect sensor, providing cycle-by-cycle phase-leg short-circuit protection. In a typical 7.5 kW servo drive, six IRS2127STRPBF devices (three high-side, three low-side using paired low-side drivers) drive 1200 V / 75 A IGBT modules at 8 kHz to 16 kHz PWM.
Recommended
Solar Inverter DC-DC Stage
Photovoltaic string inverters and DC-DC boost stages use the IRS2127STRPBF to drive the high-side MOSFET in the MPPT boost converter or full-bridge topology. The 600 V offset rating covers 1500 V DC string voltages when stacked with two devices in half-bridge, while the 12 V to 20 V gate supply is well-matched to standard 15 V gate drive rails used in solar power stages. The integrated over-current protection prevents catastrophic MOSFET failure during short-circuit events at the PV panel input. A typical 10 kW residential solar inverter uses the IRS2127STRPBF in a 600 V full-bridge topology with SiC MOSFETs switching at 50 kHz.
Recommended
Uninterruptible Power Supply (UPS)
Online and line-interactive UPS systems use the IRS2127STRPBF in the inverter stage that converts battery DC to AC mains output. Its 600 V rating supports 400 V battery stacks with adequate headroom for ringing, while the integrated current-sense comparator enables fast battery over-current shutdown during inverter short-circuit events. The bootstrap supply simplifies gate drive routing across the IGBT half-bridge, and the 0.6 A sink current ensures tight turn-off for low-switching-loss operation at the 20 kHz typical UPS switching frequency. In a 5 kVA online UPS, two IRS2127STRPBF devices drive the high-side IGBTs of a full-bridge inverter with a separate IR2104 driving the low-side switches.
Recommended
HID Lighting Ballast
High-intensity discharge (HID) lighting ballasts for street lighting, stage lighting, and automotive headlamps use the IRS2127STRPBF to drive the high-side switching element in the DC-DC igniter and ballast converter. The 600 V offset rating easily handles the 300 V to 400 V DC bus generated from rectified mains, while the integrated over-current comparator detects arc-back and short-circuit faults at the lamp. The 12 V to 20 V gate supply range is well-matched to standard ballast control ICs, and the compact 8-SOIC package enables slim ballast designs for space-constrained fixtures.
Recommended
Recommended Products Summary
Engineering reference data for IRS2127STRPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IRS21271STRPBF | IRS2128STRPBF | IRS21281STRPBF | IR2127STRPBF | FAN73932MX |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | onsemi |
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Offset Voltage (Max) | 600 V | 600 V | 600 V | 600 V | 600 V | 600 V |
| Gate Drive Supply Range | 12 V to 20 V (motor drive) | 9 V to 20 V (automotive) | 12 V to 20 V | 9 V to 20 V (automotive) | 12 V to 20 V | 10 V to 20 V |
| Source / Sink Current | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.35 A / 0.65 A |
| Over-Current Protection | Integrated current-sense comparator + FAULT output | Integrated comparator + FAULT (auto-restart) | Integrated comparator + latched FAULT | Integrated comparator + latched FAULT | Internal sense (no FAULT pin) | External sense required |
| Fault Behavior | Cycle-by-cycle auto-restart | Cycle-by-cycle auto-restart | Latched shutdown | Latched shutdown | Cycle-by-cycle | External latch required |
| Unit Price (qty 1, as of 2026-09-14) | $2.08 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Integrated over-current comparator with dedicated FAULT output (vs IR2127STRPBF)
- Cycle-by-cycle auto-restart fault behavior (vs IRS2128STRPBF)
- Pin-compatible cross-brand option from onsemi (vs FAN73932MX)
Design Notes
Bootstrap supply design is critical for the IRS2127STRPBF: use a low-ESR 1 uF X7R ceramic capacitor between VB and VS, and pair it with a fast-recovery bootstrap diode (e.g., UF4007 or ES1J) rated for at least 2x the VCC voltage. Size the bootstrap capacitor for the worst-case duty cycle D = t_on / T_sw using the formula Q_gate = Q_g * f_sw and ensuring V_BS ripple stays above the VBS UVLO threshold (typically 8 V). For continuous high-side operation at duty cycles above 95%, add a bootstrap refresh circuit or use an isolated supply.
The VS pin (pin 7) swings below COM during the IGBT/MOSFET turn-on transition due to stray inductance in the power loop. The IRS2127STRPBF is rated for -9 V transient on VS, but exceeding this (typically caused by insufficient gate resistance or excessive dV/dt on the switching node) will permanently damage the IC. Minimize the power loop inductance by keeping the high-side switch, low-side switch, and DC-link capacitor loop area as small as possible, and add a 5 ohm to 10 ohm gate resistor for dV/dt control.
Place the IRS2127STRPBF as close as possible to the high-side power switch it drives, keeping the gate-drive loop (pin 8 VB to gate to source to pin 7 VS) under 1 cm in perimeter. Use a 4-layer PCB with a dedicated ground plane on layer 2 to shield the VS and CS+ traces from switching noise. Decouple VCC (pin 1) with a local 1 uF X7R ceramic capacitor plus a 100 nF HF bypass capacitor, both within 3 mm of the IC pins. The CS+ and CS- traces must be routed as a differential pair with Kelvin connection to the shunt resistor to avoid false tripping.
Compliance Information
PBF suffix confirms lead-free and RoHS compliant per Infineon datasheet. Not AEC-Q100 qualified - use IRS21271STRPBF / IRS21281STRPBF for automotive designs.
