Infineon Technologies IRSM836-024MATR

Overview

IRSM836-024MATR from Infineon Technologies (formerly International Rectifier) is a 250V, 2A integrated power module (IPM) for 3-phase brushless DC motor drives in small appliances. It integrates six Trench MOSFETs, high-voltage gate drivers, bootstrap diodes/resistors, under-voltage lockout, over-current protection, and fault reporting in a single 12×12 mm PQFN package. It delivers up to ~95W motor output without heatsink in energy-efficient fans and pumps.

For engineers reviewing the IRSM836-024MATR datasheet, IRSM836-024MATR pinout, IRSM836-024MATR application, or IRSM836-024MATR equivalent, key selection criteria include its 250V blocking voltage, 2A continuous current per leg, 1500VRMS isolation, 3.3V-compatible Schmitt-trigger inputs, and integrated ITRIP-based current sensing with 330 ns blanking time.

Technical Context

This IPM implements a fully integrated 3-phase inverter stage with independent high-side and low-side gate drivers, each featuring matched propagation delay (0.6–1.5 µs turn-on, 0.8–1.5 µs turn-off) and cross-conduction prevention logic. The bootstrap circuit includes an internal 200 Ω equivalent resistor and supports floating supply offset up to 200 V referenced to COM.

It operates with dual supply domains: VCC (11.5–18.5 V) powers logic and low-side drivers, while VBx (VSx+10 to VSx+20 V) powers high-side drivers. Input logic uses 3.3 V Schmitt-triggered signals with hysteresis, and fault signaling is open-drain FLT with ≤100 Ω on-resistance.

Key Specifications

Pinout & Package

IRSM836-024MATR is housed in a 36-lead PQFN package (12 × 12 mm, 1.0 mm height) with exposed thermal pad on bottom side. The package provides creepage/clearance compliant isolation and direct PCB thermal coupling via the bottom copper pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSB50825 and STK672-421, IRSM836-024MATR uniquely combines 250 V/2 A rating, integrated bootstrap, analog ITRIP input, and 1500 VRMS isolation in a 12×12 mm PQFN-making it optimal for space- and safety-critical small-appliance BLDC drives where component count and thermal simplicity are prioritized.

Availability

IRSM836-024MATR is available at Aetrix Electronics and suitable for energy-efficient ceiling fans, compact circulating pumps, smart HVAC blowers, and portable air purifier motor drives requiring stable component supply and long-term lifecycle support.

Supply support for IRSM836-024MATR 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 acquired International Rectifier in 2015 and continues its legacy of high-performance power semiconductors for industrial and consumer applications.

This device belongs to Infineon's iMotion™-integrated IPM product line, engineered specifically for cost-sensitive, space-constrained BLDC motor drives in white goods and small appliances.

FAQ

Does IRSM836-024MATR require an external heat sink?

No. The module is rated for up to ~95 W motor output without a heatsink under typical operating conditions (T_A = 25°C, R_th(J-CB) = 6.1°C/W). Its 6.1°C/W junction-to-case-bottom thermal resistance enables direct PCB copper pour cooling. Heatsink use is optional and only recommended for sustained >95 W loads or elevated ambient temperatures above 60°C.

What is the function of the RCIN pin?

RCIN serves as a multifunction control input: applying a pulse ≥8 V resets the internal fault latch after a shutdown event, while holding RCIN high during startup configures alternate initialization behavior. It is not used for normal PWM operation and must be pulled low or left unconnected unless reset functionality is needed.

Can IRSM836-024MATR drive a sensorless BLDC motor?

Yes. The module supports sensorless commutation when paired with a compatible MCU that monitors back-EMF via VSx nodes and generates appropriate HIN/LIN timing. Its matched propagation delays and open-source shunt sensing enable precise timing alignment and current feedback essential for stable sensorless operation at 20 kHz PWM frequency.

How does the ITRIP protection work with external shunt resistors?

ITRIP accepts a differential voltage from a low-side or high-side shunt. With a typical threshold of 0.47 V and 70 mV hysteresis, it triggers shutdown after a 330 ns blanking period post-switching edge. For a 10 mΩ shunt, this corresponds to ~47 A peak current detection-scaling linearly with shunt value to match application requirements.