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

Infineon Technologies AUIRS2334S

Name: AUIRS2334S
Brand: Infineon Technologies
SKU: AUIRS2334S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AUIRS2334S

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

Package:: 20-SOIC (0.295", 7.50mm Width)

Datasheet:: AUIRS2334S.pdf

Description:: IC GATE DRVR HALF-BRIDGE 20SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:3,997

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Product details

Overview

AUIRS2334S from Infineon Technologies (formerly International Rectifier) is a 3-phase high-voltage gate driver IC with independent high-side and low-side output channels, rated for 600 V offset voltage, 200 mA/350 mA peak output current per channel, and 530 ns typical propagation delay. It integrates dead-time protection, shoot-through prevention logic, and under-voltage lockout for both supply rails, and is used in automotive-grade motor control inverters driving N-channel MOSFETs or IGBTs.

For engineers reviewing the AUIRS2334S datasheet, AUIRS2334S pinout, AUIRS2334S application, or AUIRS2334S equivalent, key selection criteria include bootstrap-compatible floating channel operation up to 600 V, 3.3 V logic compatibility, matched propagation delays across all six outputs, and AEC-Q100 qualification for automotive powertrain and chassis systems.

Technical Context

The AUIRS2334S implements three independent half-bridge drivers using proprietary HVIC technology with latch-immune CMOS. Each channel features separate high-side (VB/VS-referenced) and low-side (COM-referenced) supplies, with integrated level shifters enabling operation at VS offsets from –50 V to +600 V transiently and –8 V to +600 V statically.

It embeds Schmitt-trigger inputs with 200–510 ns filter time, programmable dead time of 180–420 ns, and UVLO thresholds of 10.2–11.6 V on both VCC and VB supplies. Propagation delay matching ≤60 ns and pulse width distortion ≤75 ns support high-frequency PWM control up to 100 kHz in 3-phase BLDC or PMSM drives.

Key Specifications

Parameter	Value and Actual Design Meaning
Topology	3-phase half-bridge gate driver with independent high-side and low-side outputs
V_OFFSET max	600 V - supports high-side switching in 400 V DC bus motor inverters
I_O+/I_O− typ	200 mA / 350 mA - sufficient to drive 1–2 nF gate capacitance at ≥20 kHz
t_ON/t_OFF typ	530 ns - enables precise timing control in high-frequency PWM applications
Dead time	180–420 ns - prevents shoot-through during simultaneous high/low side transitions
Logic input voltage	3.3 V compatible - interfaces directly with microcontroller GPIO without level shifting
UVLO threshold	10.2–11.6 V - ensures reliable turn-off during brown-out conditions on VCC and VB rails

Pinout & Package

Package: 20-lead wide-body SOIC (SOIC-20W), RoHS-compliant, MSL3, AEC-Q100 qualified.

Pin/Terminal	Circuit Role	Design Meaning
HIN1, HIN2, HIN3	High-side input logic	CMOS/LSTTL-compatible inputs controlling HO1–HO3; 3.3 V–5 V tolerant
LIN1, LIN2, LIN3	Low-side input logic	CMOS/LSTTL-compatible inputs controlling LO1–LO3; referenced to COM
HO1, HO2, HO3	High-side gate output	Floating outputs referenced to VS1–VS3; drive N-channel devices in high-side configuration
LO1, LO2, LO3	Low-side gate output	Ground-referenced outputs; sink/source up to 350 mA/200 mA
VB1, VB2, VB3	High-side floating supply	Bootstrap supply pins for each high-side channel; max 625 V absolute rating
VS1, VS2, VS3	High-side floating return	Source/negative return for each high-side channel; withstands –50 V to +600 V transients
VCC	Low-side and logic supply	Fixed 10–20 V supply for logic core and low-side drivers
GND	Logic ground reference	Common reference for LINx, VCC, and LOx outputs
COM	Power ground reference	Return path for low-side power switches and internal level shifter bias

Key Features

Feature	Design Value
Floating channel architecture	Enables bootstrap-based high-side drive up to 600 V without external level shifters
Integrated dead-time insertion	Hardware-enforced minimum 180 ns dead time prevents cross-conduction in half-bridge legs
dV/dt immune level shifters	Withstands 50 V/ns common-mode transients on VS nodes without false triggering
Matched propagation delays	≤60 ns inter-channel delay mismatch ensures synchronized switching across all 3 phases
Automotive qualification	AEC-Q100 Grade 1 (–40°C to +125°C ambient) with MSL3 and robust ESD ratings

Applications

Electric Power Steering (EPS)

Automotive HVAC Blower

Use Scenario: 3-phase BLDC motor control in 12 V or 48 V automotive steering assist systems.

IC Role / Device Role / Timing Role: Gate driver for N-channel MOSFET half-bridges; provides isolated high-side drive and synchronized PWM timing.

Use Value: AEC-Q100 qualification and –40°C to +125°C operation ensure reliability in under-hood environments with high thermal cycling.

Use Scenario: Compact fan speed control in vehicle cabin air handling units.

IC Role / Device Role / Timing Role: Direct interface between MCU PWM outputs and low-power IGBT/MOSFET inverter stage.

Use Value: 3.3 V logic compatibility eliminates level-shifting components; integrated UVLO prevents erratic startup during battery voltage sag.

Industrial BLDC Motor Drives

Micro-Inverter Auxiliary Control

Use Scenario: Closed-loop speed control of 100–500 W industrial fans and pumps.

IC Role / Device Role / Timing Role: High-frequency gate driver with matched delays enabling precise field-oriented control (FOC) timing.

Use Value: 530 ns propagation delay and ≤75 ns pulse width distortion support >50 kHz PWM carrier frequencies for low acoustic noise.

Use Scenario: Auxiliary 3-phase gate drive in solar micro-inverters for auxiliary cooling or monitoring circuitry.

IC Role / Device Role / Timing Role: Isolated high-side driver for low-power auxiliary inverter stage operating from split-rail bootstrap supplies.

Use Value: 600 V offset rating allows direct integration into 400 V DC-link auxiliary subsystems without additional isolation components.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-phase gate driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR2136S	Non-automotive grade; lacks AEC-Q100 qualification and tighter UVLO hysteresis (0.2 V vs. 0.05 V)	Suitable for industrial inverters only; not approved for safety-critical automotive functions	Select when cost sensitivity outweighs automotive compliance requirements
BD63002MUV	Lower offset voltage (450 V); no integrated dead time; requires external dead-time circuitry	Targeted at low-voltage (<300 V) brushless fans and appliances	Select for space-constrained consumer applications where 600 V capability is unnecessary

Compared with IR2136S and BD63002MUV, the AUIRS2334S uniquely combines AEC-Q100 qualification, 600 V offset, hardware dead time, and 3.3 V logic compatibility-making it the only choice for automotive EPS and HVAC systems requiring functional safety alignment.

Availability

AUIRS2334S is available at Aetrix Electronics and suitable for electric power steering, automotive HVAC blowers, and industrial BLDC motor drives requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AUIRS2334S 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 headquarters in Munich, Germany.

The AUIRS2334S belongs to Infineon's automotive-qualified HVIC gate driver product line, designed specifically for robust, high-reliability 3-phase motor control in safety-critical vehicle subsystems.

FAQ

What is the maximum allowable dV/dt on the VS pins?

The AUIRS2334S is rated for up to 50 V/ns dV/dt on VS1–VS3 pins under transient conditions. This immunity is achieved via proprietary level-shifter design and is validated per AEC-Q100 stress testing. Operation beyond this rate may cause false high-side turn-on or latch-up, especially at elevated junction temperatures above 110°C.

Can the AUIRS2334S drive IGBTs directly?

Yes-the AUIRS2334S can directly drive standard 600 V IGBTs with gate charge ≤150 nC at 15 V gate drive. Its 350 mA sink/200 mA source capability supports typical IGBT gate resistances of 10–22 Ω. For high-speed switching (>20 kHz), external gate resistors must be selected to limit di/dt and avoid Miller-induced turn-on.

Is bootstrap operation mandatory for high-side channels?

No-bootstrap is the most common implementation, but the floating channels also support isolated DC-DC supplies connected to VBx and VSx. The IC does not require bootstrap diodes or capacitors; those are external components needed only in bootstrap configurations to replenish VBx charge during high-side conduction.

Does the AUIRS2334S support single-phase or 2-phase configurations?

Yes-it supports partial channel use: any subset of the three half-bridge pairs (HINx/LINx → HOx/LOx) can be enabled independently. Unused inputs should be tied to GND or VCC; unused outputs left floating. All internal protections (UVLO, dead time, shoot-through logic) remain active per enabled channel.

AUIRS2334S Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 20-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Driven Configuration:: Half-Bridge

Channel Type:: 3-Phase

Number of Drivers:: 6

Gate Type:: IGBT, N-Channel, P-Channel MOSFET

Voltage - Supply:: 10V ~ 20V

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

Current - Peak Output (Source, Sink):: 200mA, 350mA

Input Type:: Non-Inverting

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

Rise / Fall Time (Typ):: 125ns, 50ns

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 20-SOIC

AUIRS2334S FAQ

1.How can I place an order for AUIRS2334S through Aetrix?

Please submit a Request for Quotation (RFQ) for AUIRS2334S 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 AUIRS2334S reliable?

The price and inventory of AUIRS2334S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRS2334S is usually 5 days.

3.What payment methods are accepted for AUIRS2334S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRS2334S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AUIRS2334S?

AUIRS2334S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AUIRS2334S 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 AUIRS2334S?

For technical support, including AUIRS2334S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRS2334S requirements.

6.How does Aetrix verify that AUIRS2334S is sourced from the original manufacturer or authorized distributors?

All AUIRS2334S 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 AUIRS2334S meets industry standards.

7.What is the process for return or replacement of AUIRS2334S?

All AUIRS2334S units undergo pre-shipment inspection (PSI). If there is an issue with AUIRS2334S, 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 AUIRS2334S part is unused and in its original packaging.

Return procedure for AUIRS2334S:

1.Submit a request within 90 days.

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

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