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

Infineon Technologies IR2235S

Name: IR2235S
Brand: Infineon Technologies
SKU: IR2235S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR2235S

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

Package:: 28-SOIC (0.295", 7.50mm Width)

Datasheet:: IR2235S.pdf

Description:: IC GATE DRVR HALF-BRIDGE 28SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:3,692

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Product details

Overview

IR2235S from Infineon Technologies is a high-voltage, high-speed 3-phase bridge gate driver IC with independent high-side and low-side outputs, rated for up to 1200V offset voltage, ±420 mA/±200 mA output drive capability, 750 ns/700 ns typical turn-on/turn-off propagation delay, and 250 ns typical deadtime-used in industrial motor inverters and IGBT-based UPS systems.

For engineers reviewing the IR2235S datasheet, IR2235S pinout, IR2235S application, or IR2235S equivalent, key selection criteria include floating channel operation up to 1200V, integrated current-sense amplifier with trip threshold (470–670 mV), undervoltage lockout per supply rail, fault-clear logic input, and matched propagation delays across all six channels.

Technical Context

The IR2235S implements three independent half-bridge drivers using proprietary HVIC technology, enabling robust monolithic construction for high dV/dt immunity and operation up to +1200V on VS pins. Each high-side channel features bootstrap-compatible floating supply (VB1–VB3) and matched propagation delay (750/700 ns typ.) to minimize timing skew in PWM-controlled 3-phase topologies.

It integrates an analog current-sense amplifier (CA+, CA−, CAO) with 5–10 V/µs slew rate, 50–70 dB CMRR/PSRR, and programmable over-current shutdown via external sense resistor. Fault signaling is implemented as open-drain FAULT output with active-low logic and dedicated FLT-CLR input for synchronous reset.

Key Specifications

Parameter	Value and Actual Design Meaning
Max V_OFFSET	1200 V - supports high-voltage IGBTs in 600–1000 V DC bus motor drives
I_O+/I_O−	200 mA / 420 mA - sufficient gate charge delivery for 30–60 A IGBTs at ≤20 kHz switching
V_OUT Range	12–20 V - configurable gate drive voltage for optimized switching loss vs. robustness trade-off
t_ON/t_OFF (typ.)	750 / 700 ns - enables stable PWM operation up to 100 kHz with margin for layout-induced delay
Deadtime (typ.)	250 ns - prevents shoot-through in complementary half-bridge switching without external timing circuitry
Logic Compatibility	2.5 V - interoperable with low-voltage microcontrollers and isolated digital isolators
Current Sense Amp	470–670 mV trip threshold - allows precise over-current detection with standard 5–10 mΩ shunt resistors

Pinout & Package

IR2235S is housed in a 28-lead SOIC (wide-body) package with gull-wing leads, designed for surface-mount assembly and thermal reliability in industrial power modules.

Pin/Terminal	Circuit Role	Design Meaning
HIN1–HIN3	High-side PWM input	Inverted logic control for HO1–HO3; tolerant to −5 V undershoot during transients
LIN1–LIN3	Low-side PWM input	Inverted logic control for LO1–LO3; referenced to VSS, compatible with MCU GPIO
HO1–HO3	High-side gate drive output	Floating N-channel driver output referenced to VS1–VS3; capable of sourcing 200 mA
LO1–LO3	Low-side gate drive output	Ground-referenced driver output; capable of sinking 420 mA for fast IGBT turn-off
VB1–VB3	Floating high-side supply	Bootstrap capacitor connection point; supports 12–20 V supply for high-side gate bias
VS1–VS3	Floating high-side return	Reference node for high-side outputs; rated for −5 V to +1200 V transient tolerance
ITRIP	Over-current sense input	Analog input for current amplifier; triggers shutdown when voltage exceeds 470–670 mV
FAULT	Open-drain fault indicator	Active-low signal indicating UVLO or over-current; requires external pull-up for system-level monitoring
FLT-CLR	Fault clear input	Negative-logic asynchronous reset; clears FAULT latch after fault condition is removed
SD	Global shutdown input	Asynchronous disable of all six outputs; overrides PWM inputs for emergency stop
CA+, CA−, CAO	Current sense amplifier I/O	Differential input pair with rail-to-rail output; provides analog feedback before trip decision
VCC	Fixed logic supply	10–20 V input powering low-side drivers, logic, and amplifier; includes UVLO with 8.2–11.6 V hysteresis
VSS, COM	Logic and power ground references	VSS = logic ground; COM = low-side power return; separate pins reduce noise coupling

Key Features

Feature	Design Value
Floating channel architecture	Enables direct high-side N-channel MOSFET/IGBT drive up to 1200 V without external level shifters
Matched propagation delay	750 ns (on) / 700 ns (off) across all six channels ensures synchronized phase-leg switching
Integrated current-sense amplifier	Provides real-time analog current feedback and programmable over-current shutdown via single shunt resistor
Independent UVLO per supply rail	VCC and VBx supplies each have dedicated undervoltage lockout with 0.4–1.0 V hysteresis for reliable startup and fault recovery
Programmable blanking time	400 ns ITRIP blanking window prevents false triggering during switching transients

Applications

Industrial Motor Inverters

Uninterruptible Power Supplies (UPS)

Use Scenario: 3-phase AC induction motor control in HVAC compressors and industrial pumps operating from 690 V AC mains rectified to ~1000 V DC bus.

IC Role / Device Role / Timing Role: Gate driver for six 650–1200 V IGBTs; manages deadtime, current limiting, and fault reporting in real time.

Use Value: Enables compact inverter design with integrated protection-eliminates need for discrete op-amps, comparators, and fault logic.

Use Scenario: Online double-conversion UPS delivering clean 230 V AC output from battery-backed DC link during grid failure.

IC Role / Device Role / Timing Role: High-frequency 3-phase inverter stage driver with fast fault response (<1 µs) to prevent IGBT destruction during short-circuit events.

Use Value: Reduces system MTBF risk by detecting over-current within 850 ns and asserting FAULT within 650 ns-enabling sub-10 µs system-level shutdown.

Solar String Inverters

Electric Vehicle Onboard Chargers (OBC)

Use Scenario: Three-level NPC topology in residential solar inverters converting 800–1000 V DC PV array output to grid-synchronized 230 V AC.

IC Role / Device Role / Timing Role: Controls high-side and low-side switches in split-phase leg configuration with precise deadtime control to avoid shoot-through.

Use Value: 250 ns factory-trimmed deadtime ensures safe commutation margins even under temperature and supply variation.

Use Scenario: Bidirectional AC/DC conversion in 11 kW OBCs, where same hardware handles both charging and vehicle-to-grid (V2G) modes.

IC Role / Device Role / Timing Role: Dual-role gate driver supporting reverse conduction detection and adaptive deadtime adjustment via CAO feedback.

Use Value: Integrated current amplifier output (CAO) feeds ADC input of MCU, enabling real-time current-loop control without external signal conditioning.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR2233S	Rated for 600 V max VS offset; lower VBSUV thresholds (7.2–9.6 V); identical pinout and feature set	Suitable for 400–600 V DC bus systems (e.g., PMSM servo drives), not rated for 1200 V topologies	Select when cost sensitivity outweighs 1200 V requirement and system DC bus stays ≤600 V
IRS2330M	Monolithic 600 V 3-phase driver with integrated bootstrap diodes; no current-sense amplifier; 500 ns typical propagation delay	Lacks analog current feedback path; requires external comparator for over-current protection	Choose for simplified BOM in cost-driven 400 V applications where analog sensing is unnecessary

Compared with IR2233S and IRS2330M, the IR2235S uniquely delivers 1200 V capability plus integrated current-sense amplifier functionality-making it the only option among the three that supports both ultra-high-voltage operation and closed-loop analog current monitoring in a single IC.

Availability

IR2235S is available at Aetrix Electronics and suitable for industrial motor inverters, uninterruptible power supplies (UPS), solar string inverters, and electric vehicle onboard chargers requiring stable component supply and long-term lifecycle support.

Supply support for IR2235S 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 driver innovation since the 1990s.

The IR22xx family was developed specifically for ruggedized 3-phase inverter systems demanding high dV/dt immunity, integrated protection, and bootstrap-compatible high-side drive-targeting industrial automation and renewable energy markets.

FAQ

What is the maximum allowable dV/dt on the VS pins of the IR2235S?

The IR2235S is specified as dV/dt immune up to 50 V/ns on its VS1–VS3 pins, verified under conditions where VB1–VB3 are biased at 15 V differential. This rating ensures reliable operation in fast-switching IGBT circuits with steep voltage transitions, such as those found in SiC-assisted hybrid inverters or high-frequency UPS designs.

Can the IR2235S drive silicon carbide (SiC) MOSFETs directly?

Yes-the IR2235S can drive discrete SiC MOSFETs when configured with appropriate gate resistor values and V_OUT set to 15–18 V. Its 200 mA source/420 mA sink capability meets typical SiC gate charge requirements for devices up to 30 A, and its 750 ns propagation delay supports switching frequencies up to 150 kHz with adequate timing margin.

How does the ITRIP blanking time function, and is it adjustable?

The IR2235S incorporates a fixed 400 ns internal blanking window after each switching edge, during which the ITRIP comparator is disabled to suppress false over-current triggers caused by Miller current or layout parasitics. This timing is not user-adjustable-it is hard-coded in the IC's internal state machine and applies uniformly to all three phases.

Is the CAO output rail-to-rail, and what load can it drive?

Yes, the CAO output swings rail-to-rail between VSS and VCC (0–20 V), with guaranteed 4 mA source and 1 mA sink capability. It can directly interface with 12-bit SAR ADCs having ≥10 kΩ input impedance or drive optocoupler LEDs with series resistors-no external buffer is required for typical current-sense signal chain implementations.

IR2235S Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 28-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 MOSFET

Voltage - Supply:: 10V ~ 20V

Logic Voltage - VIL, VIH:: 0.8V, 2V

Current - Peak Output (Source, Sink):: 250mA, 500mA

Input Type:: Inverting

High Side Voltage - Max (Bootstrap):: 1200 V

Rise / Fall Time (Typ):: 90ns, 40ns

Operating Temperature:: 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 28-SOIC

IR2235S FAQ

1.How can I place an order for IR2235S through Aetrix?

Please submit a Request for Quotation (RFQ) for IR2235S 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 IR2235S reliable?

The price and inventory of IR2235S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2235S is usually 5 days.

3.What payment methods are accepted for IR2235S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2235S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR2235S?

IR2235S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR2235S 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 IR2235S?

For technical support, including IR2235S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2235S requirements.

6.How does Aetrix verify that IR2235S is sourced from the original manufacturer or authorized distributors?

All IR2235S 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 IR2235S meets industry standards.

7.What is the process for return or replacement of IR2235S?

All IR2235S units undergo pre-shipment inspection (PSI). If there is an issue with IR2235S, 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 IR2235S part is unused and in its original packaging.

Return procedure for IR2235S:

1.Submit a request within 90 days.

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

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