IR2127SPBF - 600V High-Side Gate Driver | Infineon | 8-SOIC
MPN: IR2127SPBF β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.46 | $14.60 |
| 100 | $1.21 | $121.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.88 | $880.00 |
| 3,000 | $0.74 | $2,220.00 |
Drop-in alternatives for IR2127SPBF 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:
IR2128SPBF
β Drop-Inπ Reference alternative (not in catalog)
IR21271SPBF
β Drop-Inβ In Stock
$0.71 / Unit
View Datasheet βIR2127STRPBF
β Drop-Inβ In Stock
$0.71 / Unit
View Datasheet βIRS2108STRPBF
β Drop-Inπ Reference alternative (not in catalog)
IRS2109STRPBF
β Drop-Inβ In Stock
$0.61 / Unit
View Datasheet βIR4428STRPBF
β Drop-Inπ Reference alternative (not in catalog)
IR2127SPBF Maximum Ratings & Electrical Characteristics
| Channel Type | Single-channel, High-Side |
| Gate Driver Configuration | Non-Inverting Input |
| Number of Outputs | 1 |
| Peak Source Current (typ) | 0.25 A |
| Peak Sink Current (typ) | 0.5 A |
| Maximum Offset Voltage (High-Side) | +600 V |
| Negative Transient Tolerance | dV/dt immune, negative transient tolerant |
| Supply Voltage (VCC) | 10 V to 20 V |
| Logic Input Compatibility | CMOS / LSTTL, 3.3 V to VCC |
| Propagation Delay (typ) | 150 ns |
| Rise Time (typ, 1 nF load) | 80 ns |
| Fall Time (typ, 1 nF load) | 40 ns |
| Protection Features | Overcurrent detection with DESAT-style comparator, fault output |
| Operating Temperature | -40 Β°C to +125 Β°C |
| Package | 8-SOIC (SOIC-8) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (Pb-free suffix PBF) |
IR2127SPBF Pin Configuration
| Pin 1 | VCC β Logic / driver supply voltage (10 V to 20 V) |
| Pin 2 | IN β Logic input (CMOS/LSTTL compatible, non-inverting) |
| Pin 3 | GND β Logic ground return |
| Pin 4 | FAULT/SD β Fault output / shutdown (active when overcurrent detected) |
| Pin 5 | CS β Current-sense comparator input (DESAT detection) |
| Pin 6 | RT β Timing resistor for fault blanking time |
| Pin 7 | VS β High-side floating supply return (connected to source of driven MOSFET/IGBT) |
| Pin 8 | VOUT β Gate drive output to driven MOSFET/IGBT gate |
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
IR2127SPBF is suitable for 7 applications: Low-Power Motor Drive (Variable-Frequency Inverter), Switch-Mode Power Supply (SMPS) High-Side Switch, Uninterruptible Power Supply (UPS) Output Stage, High-Side Load Switch in DC/DC Converters, Class D Audio Amplifier Output Stage, Automotive 12 V High-Side Switch (Body Electronics), Industrial Welding and Plasma-Cutter Inverters.
Low-Power Motor Drive (Variable-Frequency Inverter)
The IR2127SPBF drives the high-side IGBT/MOSFET in a low-power three-phase or single-phase motor drive inverter leg. Its 600 V bus rating covers 230 VAC rectified to ~325 V DC with margin for spikes, while the integrated DESAT-style current-sense comparator terminates gate drive within microseconds of an overcurrent event. Typical placements: high-side switch driver in inverter-fed BLDC and PMSM motor drives for fans, pumps, and small appliances, paired with a low-side companion driver such as IRS2008STRPBF and a gate-driver isolator if low-side also requires high-voltage isolation.
Recommended
Switch-Mode Power Supply (SMPS) High-Side Switch
The IR2127SPBF serves as the high-side gate driver in isolated and non-isolated SMPS topologies such as flyback, forward, and half-bridge converters. Its 0.25 A source / 0.5 A sink capability charges and discharges MOSFET gate capacitances quickly enough to support switching frequencies from 50 kHz up to several hundred kHz, while the 150 ns propagation delay preserves timing accuracy for feedback loops. The integrated overcurrent protection simplifies implementation of cycle-by-cycle current limiting, critical for safety-rated industrial power supplies.
Recommended
Uninterruptible Power Supply (UPS) Output Stage
In UPS inverter stages, the IR2127SPBF drives the high-side IGBT that connects the battery DC bus to the output transformer or filter inductor. Its -40 Β°C to +125 Β°C operating range and negative transient voltage tolerance provide resilience against the inductive kickbacks common when a load is suddenly disconnected from the live inverter output. The DESAT-style fault output is wired back to the controller for sub-microsecond shutdown of the affected phase, preserving the IGBT module and downstream fuses during output short circuits.
Recommended
High-Side Load Switch in DC/DC Converters
The IR2127SPBF is well-suited as a high-side switch controller in buck-derived and boost-derived DC/DC converters where the high-side MOSFET must be level-shifted above the input rail. Its 600 V rating allows use in 400 V intermediate-bus converters common in telecom and industrial 48-380 V systems. The 80 ns rise / 40 ns fall times into 1 nF keep switching losses low even at 100 kHz+ operation, and the wide VCC range (10 V to 20 V) supports both 12 V and 15 V gate-drive conventions.
Recommended
Class D Audio Amplifier Output Stage
In half-bridge Class D audio amplifiers, the IR2127SPBF can drive the high-side MOSFET of each output leg. Its low propagation delay (150 ns) keeps dead-time short, which minimizes crossover distortion audible at the speaker output. The high dV/dt immunity prevents false triggering during the fast output transitions that are characteristic of Class D switching, and the integrated overcurrent protection can be configured to latch off the amplifier if a speaker short circuit is detected, protecting the output stage and the speaker itself.
Recommended
Automotive 12 V High-Side Switch (Body Electronics)
Although the standard IR2127SPBF targets 20 V industrial rails, the same 8-SOIC footprint also supports the IR21271SPBF variant which is specifically optimized for 12 V automotive battery systems. This makes the IR2127 family a versatile PCB-footprint platform for body electronics modules driving high-side MOSFETs for lamps, solenoids, and motor loads in vehicles. The negative transient voltage tolerance protects against load-dump events typical of automotive electrical environments.
Recommended
Industrial Welding and Plasma-Cutter Inverters
In welding and plasma-cutter power stages, the IR2127SPBF drives the high-side IGBT in the primary inverter stage operating from rectified mains. The 600 V rating comfortably exceeds the rectified 220 VAC mains DC bus (~310 V), and the dV/dt immunity handles the rapid edge rates produced by the welding arc. The integrated DESAT-style current-sense comparator provides fast short-circuit protection when the welding electrode contacts the work piece, preventing catastrophic IGBT failure in the high-current secondary-rectified arc load.
Recommended
Recommended Products Summary
Engineering reference data for IR2127SPBF β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IR2128SPBF | IR21271SPBF | IR2127STRPBF | IRS2108STRPBF | IRS2109STRPBF | IR4428STRPBF |
|---|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 8-SOIC | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same |
| Channel Topology | Single high-side | Single high-side | Single high-side | Single high-side | Half-bridge | Half-bridge | Dual low-side |
| Logic Input Polarity | Non-inverting | Inverting | Non-inverting | Non-inverting | Non-inverting (per phase) | Non-inverting (per phase) | Non-inverting (per channel) |
| Maximum Bus Voltage | 600 V | 600 V | 600 V | 600 V | 600 V | 600 V | 20 V (low-side only) |
| Peak Source / Sink Current | 0.25 A / 0.5 A | 0.25 A / 0.5 A | 0.25 A / 0.5 A | 0.25 A / 0.5 A | 0.29 A / 0.6 A | 0.29 A / 0.6 A | 0.55 A / 0.55 A |
| VCC Supply Range | 10 V to 20 V | 10 V to 20 V | 10 V to 20 V | 10 V to 20 V | 10 V to 20 V | 10 V to 20 V | 6 V to 20 V |
| Propagation Delay (typ) | 150 ns | 150 ns | 150 ns | 150 ns | 220 ns | 220 ns | 50 ns |
| Integrated Overcurrent Protection | Yes (DESAT-style with fault output) | Yes | Yes | Yes | No | No | No |
Key Differentiators
- Integrated overcurrent detection with DESAT-style fault output (vs IRS2108STRPBF)
- Single-channel high-side in compact 8-SOIC (vs IR2128SPBF)
- 20 V industrial gate drive vs 12 V automotive gate drive (vs IR21271SPBF)
Design Notes
Estimated: at VIN=12 V, VCC=15 V, and switching frequency 100 kHz with Qg_total = 50 nC, the IR2127SPBF draws gate-drive current I_gate = Qg * f = 50 nC * 100 kHz = 5 mA average. Add bootstrap-diode reverse leakage and quiescent current; size the VCC bypass capacitor (typically 1 uF ceramic + 10 uF bulk) to hold VCC within +/-5% during switching transients. For high-side floating supply, bootstrap capacitor C_boot must satisfy C_boot >> Qg to prevent VS droop during turn-on.
Estimated: at continuous switching with VCC=15 V, IOUT=0.25 A source, fsw=200 kHz, and Qg=20 nC, the IR2127SPBF package dissipates roughly P = VCC * Qg * fsw = 15 * 20e-9 * 200e3 = 0.06 W. SOIC-8 has theta_JA around 150 C/W on a 1 oz 2-layer board, giving ~9 C temperature rise above ambient - well within the 125 C operating limit. No heatsink is required. For sustained short-circuit fault latching, however, junction temperature may briefly spike during protection events.
Place the VCC bypass capacitor (1 uF X7R ceramic minimum) within 3 mm of the VCC pin (pin 1) and connect it directly to GND (pin 3) with a wide, short trace. Keep the high-side floating supply return (VS, pin 7) trace as short and direct as possible to the source of the driven MOSFET/IGBT to minimize parasitic inductance. Place the CS-pin current-sense filter network (typically RC of 100 ohm + 100 pF) close to pin 5 to avoid noise-induced false DESAT triggering.
Do not exceed the absolute maximum VCC of 20 V or the high-side floating rail of 600 V. Always include a bootstrap diode and reservoir capacitor for high-side operation - the IR2127SPBF cannot drive a high-side switch without proper bootstrap or isolated supply. Ensure the FAULT/SD output is wired back to the controller, otherwise the overcurrent protection will not produce a system-level shutdown. The RT pin sets the fault blanking time and must not be left floating - tie it through a resistor to GND per Infineon reference design.
The IN pin (pin 2) has Schmitt-trigger hysteresis and is 3.3 V CMOS/LSTTL compatible; tie it to the controller through a series resistor (1 kohm typical) if the controller-to-driver trace exceeds 25 mm to dampen ringing. The FAULT output is open-drain style; pull it up to VCC through a 10 kohm resistor. Avoid routing logic signals parallel to the high-side switching node; keep a ground guard trace between them on the PCB.
Compliance Information
Pb-free suffix PBF designates RoHS-compliant lead-free finish per Infineon product marking. The standard IR2127SPBF is not AEC-Q100 qualified; for AEC-Q100 automotive qualification, choose the IR21271SPBF automotive variant. Halogen-free status not stated explicitly in the available data.
