Infineon Technologies IRSM836-045MA

Overview

IRSM836-045MA from Infineon Technologies (formerly International Rectifier) is a 3-phase 500V, 4A integrated power module (IPM) for brushless DC motor drives in compact appliances. It integrates six Trench FREDFETs with matched propagation delay (0.8–1.5 µs), under-voltage lockout on all channels, and open-source shunt sensing - enabling space-constrained fan and pump control without heatsink up to ~130W.

For engineers reviewing the IRSM836-045MA datasheet, IRSM836-045MA pinout, IRSM836-045MA application, or IRSM836-045MA equivalent, key selection factors include its 12×12 mm PQFN package, 1500 V_RMS isolation, 3.3 V Schmitt-triggered logic inputs, integrated bootstrap diodes/resistors (R_BR = 200 Ω), and fault reporting via open-drain FLT pin.

Technical Context

This IPM implements a 3-phase inverter topology with high-side and low-side gate drivers sharing a single 15 V logic supply (V_CC) and three independent floating supplies (VB1–VB3). Its internal architecture includes cross-conduction prevention logic, ITRIP-based over-current protection with 200–360 ns blanking time, and TTL/CMOS-compatible 3.3 V inputs with hysteresis (V_IN,th+ = 2.5 V, V_IN,th− = 0.8 V).

Thermal design leverages R_th(J-CB) = 1.7 °C/W (junction-to-case bottom), enabling direct PCB copper thermal spreading. The module operates across −40°C to +150°C junction temperature, with qualified industrial reliability (JEDEC JESD47E, MSL3, RoHS-compliant).

Key Specifications

Pinout & Package

IRSM836-045MA uses a 37-lead PQFN package (12 × 12 mm, 1.0 mm height) with exposed thermal pad on bottom side. Pin numbering follows standard top-down view with pin 1 marked by dot; leads are arranged in dual-row configuration with high-side (VBx, HOx), low-side (LOx), and logic (HINx, LINx, EN, ITRIP, FLT, RCIN, V_CC, V_SS, COM, U/V/W/VS1–VS3) terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FAN9612MPZ and FSBB30CH60C, IRSM836-045MA delivers optimal balance of compactness (12×12 mm), integrated bootstrap, and 130 W capability - making it uniquely suited for space-limited consumer appliance motor drives where BOM reduction and simplified layout are critical.

Availability

IRSM836-045MA is available at Aetrix Electronics and suitable for energy-efficient ceiling fans, compact HVAC blowers, smart appliance water pumps, and small-form-factor washing machine drum drives requiring stable component supply and long-term lifecycle support.

Supply support for IRSM836-045MA 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 MOSFETs and intelligent power modules.

The IRSM836 series belongs to Infineon's iMotion™-integrated motor control platform, designed specifically for cost-sensitive, space-constrained BLDC motor drives in white goods and small appliances.

FAQ

Does IRSM836-045MA require an external heat sink?

No. The module functions without a heat sink up to ~130 W motor power at 25°C ambient, enabled by R_th(J-CB) = 1.7 °C/W and direct PCB copper thermal spreading through its exposed bottom pad. Thermal performance must be validated per actual board layout and airflow conditions.

What is the purpose of the RCIN pin?

RCIN is an active-high reset control input that clears the internal fault latch after a shutdown event (e.g., over-current or UVLO). It must be held high for ≥100 ns after fault removal to restore normal operation - enabling controlled recovery without power cycling.

Can IRSM836-045MA drive a sensorless BLDC motor?

Yes. Its 3-phase inverter architecture, matched propagation delay, and integrated current-sense interface (via VS1–VS3 and ITRIP) support sensorless commutation algorithms. External MCU must implement back-EMF detection and timing logic; the IPM handles gate driving, protection, and fault reporting.

What is the maximum recommended PWM frequency?

The datasheet specifies a recommended carrier frequency of up to 20 kHz. This limit balances switching losses, audible noise suppression, and gate drive capability. Operating above 20 kHz increases conduction loss due to reduced effective duty cycle and may exceed safe SOA boundaries at full load.