Infineon Technologies IRSM836-045MATR

Overview

IRSM836-045MATR from Infineon Technologies (formerly International Rectifier) is a 4A, 500V 3-phase integrated power module (IPM) for brushless AC motor drives in small appliances. It integrates six Trench FREDFETs, high- and low-side gate drivers, bootstrap diodes/resistors, under-voltage lockout, over-current protection, fault reporting, and 3.3V Schmitt-trigger logic inputs - all in a 12×12 mm PQFN package with 1500 V_RMS isolation. It delivers up to ~130W motor power without heatsink in energy-efficient fans and pumps.

For engineers reviewing the IRSM836-045MATR datasheet, IRSM836-045MATR pinout, IRSM836-045MATR application, or IRSM836-045MATR equivalent, key selection criteria include its 1.5 Ω typical R_DS(on), matched 0.8–1.5 µs propagation delay across all channels, integrated open-source shunt sensing, 200 ns ITRIP blanking time, and industrial-grade qualification per JEDEC JESD47E and MSL3.

Technical Context

This IPM implements a fully self-contained 3-phase inverter stage with independent high-side (VB1–VB3) and low-side (VCC) supplies, each featuring dedicated UVLO with 0.7 V hysteresis. Its driver IC embeds cross-conduction prevention logic and optimized dV/dt control to balance switching loss and EMI performance.

The module supports direct 3.3V logic-level PWM inputs (HIN/LIN/EN/ITRIP) with 200–360 ns input filtering, 900–1200 ns ITRIP-to-turn-off delay, and open-drain FAULT output with ≤100 Ω on-resistance. Internal bootstrap circuitry includes a 200 Ω equivalent resistor and supports floating VS offset up to +20 V relative to VB.

Key Specifications

Pinout & Package

IRSM836-045MATR uses a 37-lead PQFN package (12 × 12 mm, 1.0 mm height) with exposed thermal pad on bottom side. The package provides 1500 V_RMS isolation between power and logic domains, and features integrated bootstrap components and open-source terminals for shunt-based current sensing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FAN7382MX and FSB50550, IRSM836-045MATR uniquely combines 3.3 V logic compatibility, open-source shunt sensing, and full integration in a 12×12 mm PQFN - making it optimal for space-limited, cost-sensitive, and thermally constrained small-appliance motor drives.

Availability

IRSM836-045MATR is available at Aetrix Electronics and suitable for energy-efficient ceiling fan drives, compact circulator pump controls, smart washing machine drum motors, and small kitchen ventilation systems requiring stable component supply and long-term production continuity.

Supply support for IRSM836-045MATR 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 heritage from International Rectifier's high-performance power devices.

The IRSM836 series belongs to Infineon's integrated power module product line, engineered specifically for cost-sensitive, space-constrained 3-phase BLDC motor drives in consumer and white-goods appliances.

FAQ

Does IRSM836-045MATR require an external heat sink?

No. The module is rated for 4 A DC output per MOSFET and delivers up to ~130 W motor power without a heat sink under recommended operating conditions (T_J ≤ 150 °C, ambient ≤ 70 °C, PCB copper area ≥ 10 cm²). Its R_th(J-CB) of 1.7 °C/W enables direct thermal transfer through the exposed bottom pad to the PCB.

What is the function of the RCIN pin?

RCIN is an active-high reset input that clears the internal FAULT latch after a shutdown event (e.g., over-current or UVLO). When driven high for >100 ns, it releases the FAULT pin from low state and re-enables normal operation - provided all fault conditions have been resolved and EN remains high.

Can IRSM836-045MATR drive a 24 V DC motor?

No. This IPM is designed exclusively for 3-phase AC motor drives powered from a 400 V DC bus. Its 500 V BVDSS rating and internal architecture are incompatible with low-voltage DC motor topologies. It does not support brushed DC, stepper, or single-phase induction motor control.

How is current sensing implemented with IRSM836-045MATR?

Current sensing uses open-source configuration: low-side shunt resistors connect between VS1/VS2/VS3 and COM. The ITRIP pin monitors the differential voltage across any selected shunt, triggering shutdown when it exceeds 0.46 V. No external op-amp or comparator is needed - the threshold and hysteresis (0.06 V) are internal.