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

Infineon Technologies AUIRS2127STR

Name: AUIRS2127STR
Brand: Infineon Technologies
SKU: AUIRS2127STR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRS2127STR

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

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

Datasheet:: AUIRS2127STR.pdf

Description:: IC GATE DRVR HIGH-SIDE 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:1,406

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Product details

Overview

AUIRS2127STR 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 output stage. It operates up to +600 V offset voltage, delivers 290 mA source / 600 mA sink peak output current, and features 200 ns turn-on / 175 ns turn-off propagation delays. Used in high-reliability motor drives such as forklift traction inverters and hydraulic pump controllers.

For engineers reviewing the AUIRS2127STR datasheet, AUIRS2127STR pinout, AUIRS2127STR application, or AUIRS2127STR equivalent, key selection criteria include its AEC-Q100 qualification, bootstrap-compatible floating channel, desaturation detection threshold (250 mV typ), fault-indicating open-drain FAULT pin, and 9–20 V gate drive range for automotive systems.

Technical Context

This driver employs a proprietary HVIC (High-Voltage IC) process with latch-immune CMOS logic to enable robust operation under harsh dV/dt transients (up to 50 V/ns). Its floating channel supports high-side N-channel device driving with VS referenced to COM and VB up to 625 V absolute.

The integrated desaturation protection monitors the V_CS pin with a 250 mV typical threshold and triggers shutdown within 360 ns (t_cs), pulling the FAULT pin low via a 125 Ω on-resistance. Input logic accepts 3.3 V/5 V/15 V levels, and output phase matches input (non-inverting) per AUIRS2127STR's designation.

Key Specifications

Parameter	Value and Actual Design Meaning
V_OFFSET max	600 V - supports high-side switching in 400–600 V DC bus inverters
I_O+/I_O−	290 mA / 600 mA - sufficient gate charge delivery for ≤30 A IGBTs at 15 kHz
t_ON/t_OFF	200 ns / 175 ns - enables fast switching with minimal dead-time uncertainty
V_CS threshold	250 mV (typ) - detects desaturation with 1.5–2.1 V options for AUIRS21271 variant
V_BS UVLO	10.3 V (typ) - prevents unreliable gate drive during bootstrap capacitor discharge
dV/dt immunity	50 V/ns - suppresses false triggering in noisy high-power motor drive environments
AEC-Q100 grade	Automotive - qualified for -40°C to +125°C ambient, MSL3, HBM ±1000 V

Pinout & Package

Supplied in an 8-lead SOIC package (SOIC-8, body size 3.9 mm × 4.9 mm, 1.27 mm pitch), with creepage/clearance optimized for 600 V isolation. Pin 1 marked by dot; pins numbered counterclockwise.

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Logic supply input	10–20 V bias for internal logic and level shifters; decoupling required near pin
V_IN	Logic input signal	CMOS/LSTTL-compatible; 2.5 V VIH min ensures noise margin in automotive harnesses
V_O	High-side gate drive output	Floating output referenced to VS; drives IGBT/MOSFET gate directly
V_S	Floating source reference	Return for high-side channel; connects to IGBT emitter or MOSFET source
V_B	Floating bootstrap supply	Connects to bootstrap capacitor; supplies high-side driver stage up to 625 V absolute
V_CS	Desaturation sense input	Monitors IGBT collector-emitter voltage via external resistor divider; 250 mV threshold
FAULT	Open-drain fault indicator	Pulled low during OCP event; requires external pull-up for microcontroller interrupt
COM	Logic ground reference	Common return for V_CC, V_IN, and FAULT; isolated from VS/V_B domain

Key Features

Feature	Design Value
Integrated desaturation protection	Detects IGBT desaturation within 360 ns and asserts FAULT with 125 Ω pull-down
Bootstrap-compatible floating channel	Enables high-side drive without isolated supplies; supports 600 V offset with dV/dt immunity
Automotive AEC-Q100 qualification	Validated for -40°C to +125°C operation, MSL3, ESD HBM ±1000 V, latch-up Class II
Non-inverting output logic	V_O follows V_IN state - simplifies control timing in single-channel half-bridge configurations
Wide gate drive voltage range	12–20 V output swing (AUIRS2127STR) - optimizes conduction loss vs. switching loss trade-off

Applications

Electric Forklift Traction Inverter

Hydraulic Pump Motor Controller

Use Scenario: High-voltage (300–400 V DC bus) 3-phase inverter powering permanent magnet traction motor in battery-electric forklifts.

IC Role / Device Role / Timing Role: Single-channel high-side gate driver for IGBTs in upper leg of inverter phase leg; provides desaturation monitoring and fault reporting.

Use Value: Prevents destructive shoot-through and IGBT failure during overload or short-circuit events via sub-microsecond desat detection and FAULT signaling.

Use Scenario: Closed-loop pressure-controlled hydraulic pump in off-highway construction equipment using 24 V system with 400 V DC link.

IC Role / Device Role / Timing Role: High-side driver for N-channel IGBTs in boost or inverter stage; interfaces with MCU PWM and analog current feedback.

Use Value: Enables reliable high-side switching at 600 V offset while maintaining timing precision (200 ns t_ON) for responsive pressure regulation.

Industrial HVAC Compressor Drive

Onboard Charger Auxiliary Inverter

Use Scenario: Variable-speed compressor drive in commercial HVAC units operating from 380–480 V AC mains via PFC + inverter stage.

IC Role / Device Role / Timing Role: Gate driver for high-side IGBTs in 3-phase inverter output stage; coordinated with low-side drivers via shared COM.

Use Value: Delivers 600 mA sink current to rapidly discharge IGBT gates, minimizing tail current and conduction losses at 10–15 kHz switching.

Use Scenario: Auxiliary DC–AC inverter in EV onboard chargers generating 230 V AC for cabin pre-conditioning or auxiliary loads.

IC Role / Device Role / Timing Role: High-side driver in split-phase or half-bridge topology; FAULT pin feeds safety controller for ISO 26262 ASIL-B monitoring.

Use Value: AEC-Q100 qualification and 125 °C ambient rating ensure functional safety compliance in thermally constrained charger enclosures.

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
IR2127PbF	Industrial-grade (not AEC-Q100 qualified); identical pinout and electrical specs except for qualification and MSL rating (MSL1)	Lacks automotive temperature range validation and fault-reporting reliability testing	Select only for non-automotive industrial inverters where AEC-Q100 is not mandated
IRS2127PbF	No desaturation protection; no V_CS pin or FAULT output; otherwise same gate drive capability and timing	Requires external desat circuitry and fault management logic	Choose when cost sensitivity outweighs integrated protection needs and board space allows discrete sensing

Compared with IR2127PbF and IRS2127PbF, AUIRS2127STR uniquely combines automotive qualification, integrated desat detection, and fault signaling in a single SOIC-8 package-enabling simplified, safety-compliant designs for traction and auxiliary power inverters without external protection components.

Availability

AUIRS2127STR is available at Aetrix Electronics and suitable for electric forklift traction inverters, hydraulic pump motor controllers, and industrial HVAC compressor drives requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AUIRS2127STR 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 global semiconductor leader specializing in power management, automotive electronics, and industrial control solutions, with core expertise in high-voltage ICs and silicon carbide technologies.

AUIRS2127STR belongs to Infineon's automotive-qualified gate driver product line, engineered specifically for robust high-side IGBT/MOSFET control in traction, pumping, and auxiliary power conversion systems demanding AEC-Q100 compliance and integrated protection.

FAQ

What is the function of the V_CS pin on AUIRS2127STR?

The V_CS pin senses voltage across an external current-sense resistor connected between the IGBT collector and the positive rail. When desaturation occurs, the sensed voltage exceeds 250 mV (typical), triggering internal shutdown and asserting the FAULT pin low within 360 ns. This protects the IGBT from thermal runaway during short-circuit conditions.

Can AUIRS2127STR drive both IGBTs and MOSFETs?

Yes - AUIRS2127STR is designed to drive either N-channel IGBTs or MOSFETs. Its 290 mA source / 600 mA sink capability supports gate charge requirements of devices up to ~30 A rated current at typical 15 kHz switching frequencies, with appropriate external gate resistors selected for desired dv/dt control.

How does the FAULT pin behave during normal operation?

During normal operation, the FAULT pin remains high-impedance (open-drain). It pulls low only when desaturation, V_BS undervoltage, or internal fault is detected. An external pull-up resistor (typically 10 kΩ to V_CC) is required to generate a valid logic-high signal for MCU interrupt or status monitoring.

Is bootstrap capacitor sizing critical for AUIRS2127STR?

Yes - insufficient bootstrap capacitance causes V_BS droop below the 10.3 V UVLO threshold, leading to intermittent gate drive loss. For 15 kHz operation with 290 mA peak current, a minimum 0.22 µF ceramic capacitor (X7R, 25 V rating) placed close to V_B/V_S pins is recommended to maintain stable high-side bias.

AUIRS2127STR Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

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

Packaging:: Tape & Reel (TR)

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

AUIRS2127STR FAQ

1.How can I place an order for AUIRS2127STR through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRS2127STR 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 AUIRS2127STR reliable?

The price and inventory of AUIRS2127STR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRS2127STR is usually 5 days.

3.What payment methods are accepted for AUIRS2127STR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRS2127STR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRS2127STR?

AUIRS2127STR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRS2127STR 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 AUIRS2127STR?

For technical support, including AUIRS2127STR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRS2127STR requirements.

6.How does Aetrix verify that AUIRS2127STR is sourced from the original manufacturer or authorized distributors?

All AUIRS2127STR 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 AUIRS2127STR meets industry standards.

7.What is the process for return or replacement of AUIRS2127STR?

All AUIRS2127STR units undergo pre-shipment inspection (PSI). If there is an issue with AUIRS2127STR, 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 AUIRS2127STR part is unused and in its original packaging.

Return procedure for AUIRS2127STR:

1.Submit a request within 90 days.

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

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