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

Infineon Technologies AUIRS2127S

Name: AUIRS2127S
Brand: Infineon Technologies
SKU: AUIRS2127S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRS2127S

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: AUIRS2127S.pdf

Description:: IC GATE DRVR HIGH-SIDE 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:1,758

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Product details

Overview

AUIRS2127S from Infineon Technologies (formerly International Rectifier) is an automotive-grade, high-voltage single-channel IGBT/MOSFET gate driver with integrated desaturation over-current protection and floating high-side capability. It operates up to +600 V offset, delivers 290 mA source / 600 mA sink peak output current, features 200 ns turn-on / 175 ns turn-off propagation delay, and supports 3.3 V/5 V/15 V logic inputs for motor drive and inverter applications.

For engineers reviewing the AUIRS2127S datasheet, AUIRS2127S pinout, AUIRS2127S application, or AUIRS2127S equivalent, key selection criteria include its 600 V high-side floating operation, desaturation detection threshold (250 mV typ), undervoltage lockout (10.3 V typ VBSUV+), FAULT open-drain reporting, and AEC-Q100 qualification for automotive power stages.

Technical Context

The AUIRS2127S implements a latch-immune HVIC process with monolithic CMOS logic and high-pulse-current buffer stages to minimize cross-conduction. Its floating channel uses bootstrap biasing and tolerates dV/dt transients up to 50 V/ns while maintaining stable operation across –5 V to +600 V VS offset.

It integrates dedicated current-sense (CS) input with 250 mV typical desaturation threshold, internal UVLO on VBS supply (10.3 V typ activation), and an open-drain FAULT output that asserts low upon over-current shutdown - all synchronized to the input signal polarity (in-phase output).

Key Specifications

Parameter	Value and Actual Design Meaning
VOFFSET max	+600 V - enables direct high-side N-channel IGBT/MOSFET drive in 400–600 V DC bus inverters
IO+ / IO−	290 mA / 600 mA - sufficient gate charge delivery for ≤30 A IGBTs or 100 A MOSFETs at 15 V VBS
ton / toff	200 ns / 175 ns - supports switching frequencies up to 200 kHz with tight timing control
VCS threshold	250 mV (typ) - detects desaturation in IGBTs with 10–20 mΩ sense resistors at 10–20 A fault current
VBS UVLO	10.3 V (typ) - prevents unreliable gate drive during bootstrap capacitor discharge or startup
dV/dt immunity	50 V/ns - maintains logic integrity during fast high-side commutation in noisy motor drive environments
Logic compatibility	3.3 V / 5 V / 15 V - interfaces directly with MCU GPIO, DSP outputs, or isolated level-shifted signals

Pinout & Package

Supplied in an 8-lead SOIC package (SOIC-8, body size 3.9 mm × 4.9 mm, pitch 1.27 mm), thermally rated for TJ ≤ 150°C and MSL3 per J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Logic supply input	Provides 10–20 V bias for internal logic and level-shifting circuitry; decoupling required near pin
COM	Logic ground reference	Common return for VCC, IN, and FAULT; must be connected to system low-side ground
IN	Logic input	CMOS/LSTTL-compatible signal; rising edge enables high-side output (in-phase behavior)
VHO	High-side gate drive output	Drives IGBT/MOSFET gate referenced to VS; capable of sourcing 290 mA and sinking 600 mA
VS	Floating high-side source reference	Return node for VHO and CS; tracks switching node voltage up to +600 V offset from COM
VB	Floating bootstrap supply input	Accepts bootstrap capacitor voltage (VS + 12–20 V); powers high-side driver stage
CS	Desaturation sense input	Monitors IGBT collector-emitter voltage via external resistor; triggers FAULT at 250 mV threshold
FAULT	Open-drain fault indicator	Pulls low during desaturation or UVLO event; requires external pull-up to VCC or microcontroller I/O

Key Features

Feature	Design Value
Integrated desaturation protection	Detects IGBT desaturation via CS pin with 250 mV threshold and <360 ns response, eliminating need for external comparator and delay circuits
AEC-Q100 qualified	Qualified to Grade 0 (–40°C to +150°C TJ), including MSL3, HBM ±1000 V, CDM ±1000 V, and latch-up Class II - validated for under-hood automotive use
In-phase logic-to-output mapping	Output follows input state directly (AUIRS2127S variant), simplifying PWM control architecture versus inverted-output alternatives
Bootstrap-compatible floating channel	Enables high-side drive without isolated supplies; supports dV/dt up to 50 V/ns and VS offset up to +600 V relative to COM
3.3 V logic compatibility	Accepts 3.3 V TTL/CMOS inputs without level shifting - interoperable with modern automotive MCUs and FPGAs

Applications

Electric Power Steering (EPS)

Forklift Motor Inverters

Use Scenario: High-reliability 3-phase inverter driving 12–48 V BLDC motors in steering assist systems with strict functional safety requirements.

IC Role / Device Role / Timing Role: High-side gate driver for upper-leg IGBTs with real-time desaturation monitoring and FAULT signaling to EPS ECU.

Use Value: Enables ASIL-B compliant motor control by detecting short-circuit faults within <1 µs and asserting FAULT to trigger safe shutdown.

Use Scenario: 400 V DC bus inverter powering hydraulic pump motors in Class II/III industrial forklifts operating in dusty, vibration-prone environments.

IC Role / Device Role / Timing Role: Single-channel high-side driver with bootstrap biasing and robust dV/dt immunity for IGBT half-bridge legs.

Use Value: Maintains gate drive integrity during rapid load transients and bus ripple, reducing risk of shoot-through in harsh mobile equipment.

Automotive HVAC Blower Control

Onboard Charger (OBC) Auxiliary Inverters

Use Scenario: Variable-speed blower motor control in electric vehicle HVAC systems requiring quiet, efficient operation and thermal resilience.

IC Role / Device Role / Timing Role: High-side driver for N-channel MOSFETs in synchronous buck or 3-phase inverter topologies.

Use Value: Delivers precise 200 ns turn-on timing and 290 mA gate current to support >10 kHz PWM without gate oscillation or delay skew.

Use Scenario: Auxiliary DC–AC inverter stage in bidirectional OBCs converting 400 V battery to 230 V AC for grid export or auxiliary loads.

IC Role / Device Role / Timing Role: Desaturation-protected high-side driver for 650 V IGBTs in H-bridge or full-bridge configurations.

Use Value: Provides fault detection at 250 mV CS threshold compatible with standard 15 mΩ shunt resistors, enabling accurate over-current trip at 16.7 A RMS.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage single-channel gate driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR2127S	Industrial-grade version; identical pinout and electrical specs but lacks AEC-Q100 qualification and automotive temperature range (–40°C to +125°C only)	Not suitable for under-hood automotive deployment; acceptable for industrial inverters or lab prototypes	Select when AEC-Q100 compliance is unnecessary and cost sensitivity outweighs qualification requirements
UCC21520DW	Isolated dual-channel driver with 5.7 kVRMS galvanic isolation; higher VDD rating (25 V), faster tON/tOFF (28 ns/20 ns), no integrated desat detection	Requires external desat circuitry; suited for isolated half-bridge or SiC MOSFET designs where creepage/clearance is critical	Choose for systems needing reinforced isolation or >1 MHz switching - not a drop-in replacement due to topology and feature mismatch

Compared with IR2127S, AUIRS2127S adds automotive qualification and extended temperature margin; versus UCC21520DW, it trades isolation and speed for integrated desat protection and lower BOM count in non-isolated 600 V IGBT applications.

Availability

AUIRS2127S is available at Aetrix Electronics and suitable for electric power steering, forklift motor drives, automotive HVAC blowers, and onboard charger auxiliary inverters requiring stable component supply across automotive production lifecycles.

Supply support for AUIRS2127S 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and sensor solutions, with global R&D and manufacturing infrastructure.

The AUIRS2127S belongs to Infineon's automotive-qualified high-voltage gate driver product line, designed specifically for robust, safety-conscious motor control in electrified vehicles and industrial traction systems.

FAQ

What is the function of the CS pin on AUIRS2127S?

The CS (Current Sense) pin monitors voltage across an external sense resistor connected between the IGBT collector and the power device's emitter. When desaturation occurs, the voltage exceeds the internal 250 mV threshold, triggering a shutdown sequence and pulling the FAULT pin low within 360 ns. No external comparator or RC filter is needed.

Can AUIRS2127S drive both IGBTs and MOSFETs?

Yes - AUIRS2127S is explicitly characterized for both IGBT and N-channel MOSFET gate driving. Its 290 mA source / 600 mA sink capability and 200 ns / 175 ns propagation delays support typical gate charges of 100–300 nC. The desaturation protection is optimized for IGBTs but remains functional with MOSFETs using appropriate sense resistor values.

How does the FAULT pin behave during normal operation?

During normal operation, the FAULT pin remains high-impedance (open-drain). It pulls low only during active fault conditions: desaturation detection, VBS undervoltage lockout, or internal thermal shutdown. An external pull-up resistor to VCC is mandatory to ensure proper logic-level reporting to the controller.

Is bootstrap operation mandatory for AUIRS2127S high-side drive?

Yes - the VB pin requires a bootstrap capacitor charged from VCC through a diode to generate the floating supply needed for the high-side driver stage. While alternative isolated supplies can be used, bootstrap is the intended, validated, and most cost-effective method per the datasheet design guidelines and application notes DT97-3 and AN-1001.

AUIRS2127S Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Driven Configuration:: High-Side

Channel Type:: Single

Number of Drivers:: 1

Gate Type:: IGBT, N-Channel MOSFET

Voltage - Supply:: 12V ~ 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):: 80ns, 40ns

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

AUIRS2127S FAQ

1.How can I place an order for AUIRS2127S through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRS2127S 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 AUIRS2127S reliable?

The price and inventory of AUIRS2127S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRS2127S is usually 5 days.

3.What payment methods are accepted for AUIRS2127S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRS2127S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRS2127S?

AUIRS2127S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRS2127S 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 AUIRS2127S?

For technical support, including AUIRS2127S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRS2127S requirements.

6.How does Aetrix verify that AUIRS2127S is sourced from the original manufacturer or authorized distributors?

All AUIRS2127S 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 AUIRS2127S meets industry standards.

7.What is the process for return or replacement of AUIRS2127S?

All AUIRS2127S units undergo pre-shipment inspection (PSI). If there is an issue with AUIRS2127S, 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 AUIRS2127S part is unused and in its original packaging.

Return procedure for AUIRS2127S:

1.Submit a request within 90 days.

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

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