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

Infineon Technologies IR2235

Name: IR2235
Brand: Infineon Technologies
SKU: IR2235
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR2235

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

Package:: 28-DIP (0.600", 15.24mm)

Datasheet:: IR2235.pdf

Description:: IC GATE DRVR HALF-BRIDGE 28DIP

Quantity:: RFQ Add To RFQ list

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Inventory:1,745

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Product details

Overview

IR2235 from Infineon Technologies (formerly International Rectifier) is a high-voltage, high-speed 3-phase bridge driver IC with six independent gate drive channels-three high-side (HO1–HO3) and three low-side (LO1–LO3)-designed for driving N-channel MOSFETs or IGBTs in motor inverters and UPS systems. It supports up to 1200 V offset voltage, delivers ±200 mA / +420 mA peak output current, features 750/700 ns typical propagation delay, 250 ns programmable deadtime, and integrated current-sense amplifier with over-current shutdown.

For engineers reviewing the IR2235 datasheet, IR2235 pinout, IR2235 application, or IR2235 equivalent, key selection considerations include its 1200 V floating channel rating, matched propagation delays across all six channels, 2.5 V logic-compatible inputs, undervoltage lockout on both VCC and VB supplies, and fault-clear functionality via FLT-CLR pin.

Technical Context

The IR2235 employs proprietary HVIC (High-Voltage IC) monolithic technology enabling robust floating channel operation up to 1200 V VS offset. Its three independent half-bridge drivers integrate matched propagation delays (750 ns turn-on / 700 ns turn-off), programmable deadtime (250 ns typ.), and a dedicated current-sense amplifier with CA+, CA−, and CAO pins for analog feedback and over-current trip.

Logic inputs (HIN/LIN/SD/ITRIP/FLT-CLR) are CMOS/LSTTL compatible down to 2.5 V, with internal 5.2 V zener clamping. Fault detection triggers a low-active open-drain FAULT signal upon undervoltage (VCC or VB) or over-current events, cleared only by asserting FLT-CLR-ensuring safe, controlled recovery in high-reliability power conversion systems.

Key Specifications

Parameter	Value and Actual Design Meaning
VS Offset Max	1200 V - enables direct high-side drive of 1200 V-class IGBTs without external level-shifting
IO+/IO−	+200 mA / −420 mA - sufficient gate drive strength for fast switching of 100 A+ IGBT modules
ton/toff (typ.)	750 / 700 ns - ensures precise timing control in >20 kHz PWM motor drives
Deadtime (typ.)	250 ns - prevents shoot-through in 3-phase bridge topologies with tight timing margins
VOUT Range	12–20 V - configurable gate drive voltage supporting both MOSFET and IGBT VGE requirements
Logic Threshold	2.5 V compatible - interfaces directly with microcontrollers and FPGA I/O without level shifters
Amplifier Slew Rate	+10 / −2.5 V/µs - supports accurate real-time current sensing with <1 µs response to over-current events

Pinout & Package

IR2235 is available in 28-lead SOIC (wide body), 28-lead PDIP, and 44-lead PLCC (12 leads omitted) packages. All variants share identical pin function mapping per the official lead assignment diagram.

Pin/Terminal	Circuit Role	Design Meaning
HIN1–HIN3	High-side logic input	Inverted control signal for HO1–HO3; enables complementary PWM with LINx
LIN1–LIN3	Low-side logic input	Inverted control signal for LO1–LO3; synchronized with HINx for half-bridge operation
HO1–HO3	High-side gate drive output	Floating outputs referenced to VS1–VS3; rated for 1200 V offset and ±200 mA drive
LO1–LO3	Low-side gate drive output	Ground-referenced outputs; deliver −420 mA sink current for fast MOSFET turn-off
VB1–VB3	High-side floating supply	Bootstrap or isolated supply inputs (12–20 V); each powers one high-side driver stage
VS1–VS3	High-side floating return	Source/negative terminals for VB1–VB3; tied to respective phase leg midpoints
ITRIP	Over-current trip input	Analog input monitoring external sense resistor; triggers shutdown when voltage exceeds 470–670 mV
CA+, CA−, CAO	Current amplifier interface	Dedicated op-amp inputs/outputs for precision bridge current measurement and feedback
FAULT	Fault indicator output	Open-drain, active-low signal indicating UVLO or over-current; requires pull-up for system monitoring
FLT-CLR	Fault clear input	Negative-logic input; must be pulsed low to reset FAULT latch after fault condition clears
SD	Shutdown input	Global disable; forces all six outputs low and asserts FAULT until cleared
VCC	Logic & low-side supply	10–20 V input powering logic core and LOx drivers; monitored for UVLO at 9.2–11.6 V threshold
VSS, COM	Logic ground & low-side return	VSS = logic reference; COM = common return for LOx outputs and current sense circuitry

Key Features

Feature	Design Value
Floating channel HVIC architecture	Enables reliable 1200 V high-side operation without external level shifters or discrete gate drivers
Matched propagation delay (all channels)	Ensures symmetrical timing across all six outputs-critical for minimizing torque ripple in PMSM/BLDC motor control
Integrated current-sense amplifier	Provides analog current feedback with 70 dB CMRR and 5–10 V/µs slew rate for real-time protection
Independent UVLO on VCC and VB supplies	Prevents erratic switching during brown-out conditions; dual thresholds (9.2/10.4/11.6 V) reduce false trips
Programmable blanking time (400 ns)	Filters transient noise on ITRIP line during switching transitions-avoids nuisance over-current shutdown

Applications

Industrial Motor Inverter

Uninterruptible Power Supply (UPS)

Use Scenario: 3-phase inverter driving 15 kW permanent magnet synchronous motor in HVAC compressor.

IC Role / Device Role / Timing Role: Gate driver for six 1200 V IGBTs; provides matched timing, deadtime control, and cycle-by-cycle over-current protection.

Use Value: 1200 V offset rating eliminates need for external high-side level shifters; integrated amplifier reduces BOM count by removing external op-amp and comparator.

Use Scenario: Online double-conversion UPS with bidirectional 3-phase inverter/rectifier stage.

IC Role / Device Role / Timing Role: High-reliability gate driver managing regenerative braking and battery charging paths with fault-safe shutdown.

Use Value: Dual UVLO (VCC/VB) prevents misfiring during AC line sags; FLT-CLR pin enables controlled restart after overload clearing.

Solar String Inverter

Electric Vehicle Traction Inverter

Use Scenario: 10 kW string inverter converting DC from PV array to grid-synchronized AC using SiC MOSFETs.

IC Role / Device Role / Timing Role: High-speed gate driver delivering 20 V gate drive with <1 µs propagation matching for SiC switching at 50–100 kHz.

Use Value: 750/700 ns ton/toff and 250 ns deadtime support high-frequency operation while maintaining shoot-through immunity.

Use Scenario: 80 kW traction inverter controlling induction motor in light-duty EV platform.

IC Role / Device Role / Timing Role: Fault-tolerant 3-phase driver with analog current feedback for torque control and short-circuit protection.

Use Value: CA+/CA−/CAO interface enables direct connection to shunt resistor and MCU ADC-reducing latency vs. digital current sensors.

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
IR2135	600 V VS offset rating; lower VBSUV thresholds (7.6–9.6 V); same pinout and feature set	Suitable for 600 V IGBT/motor drives but not 1200 V systems; lacks margin for 1200 V SiC or high-bus designs	Select IR2135 only if bus voltage remains ≤600 V and cost sensitivity outweighs future-proofing needs.
IRS2336M	1200 V rating; integrated bootstrap diodes; no current-sense amplifier; different pinout (SOIC-28 only)	Reduces external component count but removes analog current feedback capability-requires external sensing circuitry	Choose IRS2336M when simplified layout and bootstrap integration are prioritized over integrated current monitoring.

Compared with IR2135, IR2235 adds 1200 V capability and tighter UVLO hysteresis; versus IRS2336M, it retains the critical CA amplifier for closed-loop current control-making it preferred for servo-grade motor drives requiring real-time analog feedback.

Availability

IR2235 is available at Aetrix Electronics and suitable for industrial motor inverters, uninterruptible power supplies, solar string inverters, and electric vehicle traction systems requiring stable component supply and long-term lifecycle support.

Supply support for IR2235 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, and industrial control solutions, with deep expertise in high-voltage IC design and ruggedized gate driver technology.

The IR2235 belongs to Infineon's legacy HVIC 3-phase driver product line, engineered specifically for high-reliability, high-voltage motor control and power conversion systems demanding integrated protection, matched timing, and analog current feedback.

FAQ

What is the maximum allowable dV/dt at the VS pins for reliable operation?

The IR2235 is rated for up to 50 V/ns dV/dt on VS1–VS3 pins under recommended operating conditions. This immunity is achieved through proprietary HVIC isolation and internal level-shifting circuitry, enabling stable operation even during fast-switching transients in hard-switched 3-phase bridges.

Can the CA amplifier be used for both high-side and low-side current sensing?

Yes-the CA amplifier accepts differential inputs (CA+, CA−) referenced to COM, making it suitable for either high-side shunt (with appropriate level-shifting) or low-side shunt configurations. Its 70 dB CMRR and rail-to-rail input range (0–5 V) support accurate measurement in both placements, though low-side sensing is simpler and more common.

How does the ITRIP blanking time prevent false over-current trips during switching transitions?

The internal 400 ns blanking window disables the ITRIP comparator immediately after each HO/LO transition, ignoring transient voltage spikes from parasitic inductance or Miller capacitance. This ensures only sustained over-current events-indicative of actual fault conditions-trigger shutdown, improving system robustness.

Is the FLT-CLR function latched or edge-triggered?

FLT-CLR is edge-triggered: a low-going pulse ≥100 ns wide resets the internal fault latch and de-asserts the FAULT output. The latch remains reset only if the underlying fault condition (e.g., UVLO or ITRIP) has cleared; otherwise, FAULT reasserts immediately after the pulse ends.

IR2235 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 28-DIP (0.600", 15.24mm)

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:: Through Hole

Supplier Device Package:: 28-PDIP

IR2235 FAQ

1.How can I place an order for IR2235 through Aetrix?

Please submit a Request for Quotation (RFQ) for IR2235 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 IR2235 reliable?

The price and inventory of IR2235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2235 is usually 5 days.

3.What payment methods are accepted for IR2235?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2235 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR2235?

IR2235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR2235 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 IR2235?

For technical support, including IR2235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2235 requirements.

6.How does Aetrix verify that IR2235 is sourced from the original manufacturer or authorized distributors?

All IR2235 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 IR2235 meets industry standards.

7.What is the process for return or replacement of IR2235?

All IR2235 units undergo pre-shipment inspection (PSI). If there is an issue with IR2235, 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 IR2235 part is unused and in its original packaging.

Return procedure for IR2235:

1.Submit a request within 90 days.

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

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