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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Gate Drivers

Infineon Technologies IRS21094STRPBF

Name: IRS21094STRPBF
Brand: Infineon Technologies
SKU: IRS21094STRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRS21094STRPBF

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: IRS21094STRPBF.pdf

Description:: IC GATE DRVR HALF-BRIDGE 14SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRS21094STRPBF from Infineon Technologies is a high-voltage, high-speed half-bridge gate driver IC designed to control N-channel MOSFETs and IGBTs in high-side/low-side configurations. It features 600 V floating channel capability, 120 mA/250 mA peak output drive current, 750 ns/200 ns typical turn-on/turn-off propagation delay, and programmable deadtime up to 5 µs via external resistor. It is used in motor inverters, induction cooktops, and DC-DC resonant converters.

For engineers reviewing the IRS21094STRPBF datasheet, IRS21094STRPBF pinout, IRS21094STRPBF application, or IRS21094STRPBF equivalent, key selection criteria include bootstrap-compatible floating channel operation, dual-channel UVLO, 3.3 V–15 V logic compatibility, matched propagation delays, and internal 540 ns deadtime with external programmability.

Technical Context

The IRS21094STRPBF integrates a high-voltage level shifter and latch-immune CMOS logic to enable robust high-side switching up to +600 V referenced to VS. Its dual-channel architecture includes independent undervoltage lockout (UVLO) for both VCC and VB supplies, with hysteresis of 0.7 V.

It implements cross-conduction prevention logic with matched HS/LS propagation delays (≤70 ns mismatch) and supports logic ground offset (VSS) ±5 V relative to COM. The DT pin enables precise deadtime tuning from 400 ns to 5 µs using a single resistor-functionality absent in the non-4 variant (IRS2109).

Key Specifications

Parameter	Value and Actual Design Meaning
Max Floating Voltage	600 V - Enables direct high-side drive in 400 V AC line-connected topologies without external level-shifting circuitry.
Output Drive Current	120 mA / 250 mA - Sufficient to rapidly charge/discharge gate capacitance of 1 kW-class MOSFETs (e.g., IRFP4668) at 100 kHz switching.
Propagation Delay	750 ns / 200 ns - Low, matched delays ensure tight timing control between HO and LO, critical for ZVS/ZCS soft-switching designs.
Deadtime Range	400 ns – 5 µs - Programmable via R_DT; prevents shoot-through in hard-switched half-bridges while supporting resonant modes requiring microsecond gaps.
Logic Compatibility	3.3 V / 5 V / 15 V - Interfaces directly with MCU GPIOs, FPGA outputs, or isolated digital controllers without level translation.
UVLO Thresholds	VCC/VB: 8.2 V (falling), 8.9 V (rising) - Prevents erratic switching during brown-out conditions and ensures clean startup under varying supply rails.
dV/dt Immunity	50 V/ns - Tolerates fast transients on VS node common in SiC/GaN-based bridges, reducing false triggering risk.

Pinout & Package

IRS21094STRPBF is housed in an 8-lead SOIC package with creepage/clearance optimized for 600 V isolation. Pin 1 is VCC; Pin 2 is IN; Pin 3 is SD; Pin 4 is COM; Pin 5 is VB; Pin 6 is HO; Pin 7 is VS; Pin 8 is LO. VSS is not present-this pin assignment applies only to 14-lead variants (e.g., IRS21094SPbF). The SOIC-8 variant uses COM as logic ground reference.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Low-side and logic supply input	Provides power to internal logic and low-side driver stage; must be decoupled with ≥1 µF ceramic near pin.
IN	Logic input for both HO and LO	In-phase with HO output; drives complementary LO via internal logic; referenced to COM.
SD	Active-low shutdown input	Pulls both HO and LO low when asserted; requires external pull-up for fail-safe operation.
COM	Low-side return and logic ground	Reference node for VCC, IN, SD, and LO; must be low-inductance connection to PCB ground plane.
VB	High-side floating supply input	Connects to bootstrap capacitor positive terminal; supplies high-side driver stage referenced to VS.
HO	High-side gate drive output	Drives gate of high-side N-MOSFET/IGBT; swings from VS to VB; requires RC snubber if driving fast SiC devices.
VS	High-side floating supply return	Switching node connection; serves as reference for HO output and VB supply; subject to high dV/dt.
LO	Low-side gate drive output	Drives gate of low-side N-MOSFET/IGBT; swings from COM to VCC; referenced to COM.

Key Features

Feature	Design Value
Floating channel with 600 V rating	Enables direct high-side drive in off-line AC-DC PFC stages and 3-phase inverter legs without optocouplers or pulse transformers.
Programmable deadtime (400 ns–5 µs)	Allows fine-tuning for different switching devices (Si, SiC, GaN) and modulation schemes (PWM, phase-shift, resonant) without redesigning gate loop layout.
Matched HS/LS propagation delays (≤70 ns)	Reduces timing skew-induced shoot-through risk in high-frequency (>100 kHz) synchronous rectification and motor control applications.
3.3 V–15 V logic-compatible inputs	Eliminates need for external level shifters when interfacing with modern low-voltage MCUs (e.g., STM32G4, C2000 F28004x) or isolated digital isolators.
Integrated cross-conduction prevention	Hardware-enforced interlock prevents simultaneous HO/LO activation even during transient noise events or rapid IN/SD transitions.

Applications

Motor Inverter Stage

Induction Heating System

Use Scenario: Driving three half-bridge legs in a 3-phase BLDC or PMSM inverter for HVAC compressors or industrial pumps.

IC Role / Device Role / Timing Role: Half-bridge gate driver providing synchronized, shoot-through-protected HO/LO signals with matched delays and programmable deadtime.

Use Value: Enables >20 kHz PWM operation with <1% timing skew, reducing torque ripple and audible noise in closed-loop motor control.

Use Scenario: Controlling resonant half-bridge in domestic induction cooktops operating at 20–100 kHz.

IC Role / Device Role / Timing Role: High-voltage gate driver delivering precise deadtime control to maintain zero-voltage switching across load variations.

Use Value: Supports adaptive deadtime tuning via R_DT, maintaining ZVS over full pan-detection range and improving thermal efficiency by ≥3%.

Resonant DC-DC Converter

Industrial UPS Inverter

Use Scenario: Gate driving LLC half-bridge primary switches in telecom/server PSUs requiring high efficiency at light loads.

IC Role / Device Role / Timing Role: Dual-channel driver with dV/dt-immune floating channel enabling reliable operation at 500 V bus with fast SiC MOSFETs.

Use Value: 50 V/ns immunity prevents false turn-on during high di/dt commutation, eliminating need for additional gate clamping circuits.

Use Scenario: Power stage control in 3 kVA online UPS systems with battery backup and pure sine-wave output.

IC Role / Device Role / Timing Role: Robust half-bridge driver with dual UVLO ensuring safe disable during AC failure or battery sag.

Use Value: Independent VCC/VB UVLO thresholds prevent partial drive failure, enhancing system reliability during brown-out and cold-start conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar half-bridge gate driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRS2109STRPBF	No DT pin or VSS; fixed 540 ns deadtime; no programmability.	Suitable for cost-sensitive, fixed-frequency topologies where deadtime tuning is unnecessary.	Select when design does not require adaptive deadtime or logic ground separation.
IR2110STRPBF	Higher drive current (2 A peak); 14-pin PDIP/SOIC; no DT pin; 10–20 V VCC range.	Better suited for high-power (>3 kW) motor drives with large gate charges and slower switching.	Choose for legacy designs needing higher peak current or wider supply voltage margin.

Compared with IRS2109STRPBF, the IRS21094STRPBF adds programmable deadtime and VSS separation-critical for noise-sensitive resonant converters. Versus IR2110STRPBF, it trades peak current for tighter timing control and lower quiescent consumption, favoring high-frequency, efficiency-critical applications.

Availability

IRS21094STRPBF is available at Aetrix Electronics and suitable for motor inverters, induction heating systems, resonant DC-DC converters, and industrial UPS inverters requiring stable component supply across extended production lifecycles.

Supply support for IRS21094STRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in high-voltage gate drivers and silicon carbide solutions.

The IRS21094 belongs to Infineon's high-voltage IC (HVIC) product line, engineered for ruggedized half-bridge operation in harsh electrical environments including appliance, industrial, and renewable energy systems.

FAQ

What is the purpose of the DT pin on IRS21094STRPBF?

The DT pin sets deadtime between LO turn-off and HO turn-on (and vice versa) using an external resistor to VSS. With R_DT = 0 Ω, deadtime is 400–680 ns; with R_DT = 200 kΩ, it extends to 5 µs. This pin is exclusive to IRS21094 variants and absent in IRS2109.

Can IRS21094STRPBF drive SiC MOSFETs?

Yes-it supports 600 V floating operation and 50 V/ns dV/dt immunity, making it suitable for discrete SiC MOSFETs in hard-switched or resonant topologies. Gate resistor selection must account for higher Q_g and faster switching speeds to avoid ringing.

How does the shutdown (SD) function behave during fault conditions?

SD is active-low and forces both HO and LO outputs low regardless of IN state. It has dedicated UVLO detection and propagation delay (≤280 ns), enabling fast fault response. External pull-up to VCC ensures default-enabled operation after power-up.

Is bootstrap capacitor sizing different for IRS21094STRPBF versus IRS2109?

No-the bootstrap capacitor requirements are identical: minimum 0.1 µF ceramic with low ESR, sized to sustain VB ≥10 V during worst-case duty cycle. Both share same VBS UVLO thresholds (7.4–9.8 V) and quiescent current (20–130 µA).

IRS21094STRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Driven Configuration:: Half-Bridge

Channel Type:: Synchronous

Number of Drivers:: 2

Gate Type:: IGBT, N-Channel MOSFET

Voltage - Supply:: 10V ~ 20V

Logic Voltage - VIL, VIH:: 0.8V, 2.5V

Current - Peak Output (Source, Sink):: 290mA, 600mA

Input Type:: Non-Inverting

High Side Voltage - Max (Bootstrap):: 600 V

Rise / Fall Time (Typ):: 100ns, 35ns

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

IRS21094STRPBF FAQ

1.How can I place an order for IRS21094STRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRS21094STRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IRS21094STRPBF reliable?

The price and inventory of IRS21094STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS21094STRPBF is usually 5 days.

3.What payment methods are accepted for IRS21094STRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS21094STRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRS21094STRPBF?

IRS21094STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRS21094STRPBF order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IRS21094STRPBF?

For technical support, including IRS21094STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS21094STRPBF requirements.

6.How does Aetrix verify that IRS21094STRPBF is sourced from the original manufacturer or authorized distributors?

All IRS21094STRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IRS21094STRPBF meets industry standards.

7.What is the process for return or replacement of IRS21094STRPBF?

All IRS21094STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS21094STRPBF, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IRS21094STRPBF part is unused and in its original packaging.

Return procedure for IRS21094STRPBF:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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