Infineon Technologies IRSM836-035MA

Overview

IRSM836-035MA from Infineon Technologies (formerly International Rectifier) is a 3A, 500V integrated power module (IPM) for 3-phase AC motor drive in compact appliances. It integrates six Trench FREDFETs with matched propagation delay (0.7–1.5 µs), under-voltage lockout (8.2–9.8 V), and open-source shunt sensing - enabling brushless fan/pump control up to ~110W without heatsink in 12×12 mm PQFN.

For engineers reviewing the IRSM836-035MA datasheet, IRSM835-035MA pinout, IRSM836-035MA application, or IRSM836-035MA equivalent, key selection factors include isolated 1500 VRMS rating, 3.3V Schmitt-triggered logic compatibility, integrated bootstrap diodes, and fault reporting via open-drain FLT pin.

Technical Context

This IPM implements a fully integrated 3-phase high-voltage gate driver IC with independent high-side (VB1–VB3) and low-side (VCC) supplies. Each channel features cross-conduction prevention logic, 200 Ω internal bootstrap resistor, and ITRIP-based over-current protection with 100–330 ns blanking time.

The module uses Trench MOSFET technology with R_DS(on) = 1.85–2.2 Ω at 25°C and supports PWM carrier frequencies up to 20 kHz. Its floating VS1–VS3 inputs tolerate offset voltages up to 400 V relative to COM, enabling direct connection to high-side DC bus nodes in inverter topologies.

Key Specifications

Pinout & Package

IRSM836-035MA is housed in a 36-lead PQFN package measuring 12 × 12 mm with exposed thermal pad on bottom side. The package provides reinforced isolation between power and logic domains, and supports surface-mount reflow assembly (MSL3, 260°C peak).

Key Features

Applications

Equivalent & Alternatives

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

Compared with FAN8230MX and FSB50825, IRSM836-035MA delivers optimal balance of integration density, 3.3 V logic compatibility, and self-contained protection - making it ideal for cost- and space-sensitive <110 W appliance inverters where rapid time-to-market matters.

Availability

IRSM836-035MA is available at Aetrix Electronics and suitable for energy-efficient ceiling fans, compact HVAC blowers, smart washing machine drum motors, and small-appliance water pump inverters requiring stable component supply and long-term production continuity.

Supply support for IRSM836-035MA 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 analog and mixed-signal ICs.

This device belongs to Infineon's iMotion™-integrated IPM product line, engineered specifically for cost-sensitive, space-constrained single-phase and 3-phase BLDC/PMSM motor drives in white goods and small appliances.

FAQ

Does IRSM836-035MA require an external heat sink?

No. The module is rated for 3 A continuous per phase at 25°C ambient with R_th(J-CB) = 2.2 °C/W, enabling full 110 W motor drive capability without a heatsink when mounted on a 2 oz copper PCB with ≥4 thermal vias under the exposed pad. Thermal derating applies above 70°C ambient.

What is the function of the RCIN pin?

RCIN is a reset control input with 8 V positive-going threshold. When driven high, it clears the internal fault latch and re-enables outputs after a shutdown event. It can also be used for soft-start sequencing by delaying activation until DC bus stabilizes, preventing inrush-related faults.

Can IRSM836-035MA drive a PMSM motor using sensorless FOC?

Yes. Its open-source VS1–VS3 terminals enable single-shunt current reconstruction, and matched propagation delays (<0.8 µs) ensure precise timing for real-time FOC algorithms. Combined with 20 kHz PWM support and ITRIP-based over-current protection, it meets core requirements for sensorless field-oriented control in appliance-grade PMSMs.

How is fault condition reported and cleared?

Internal faults (UVLO, over-current, or desaturation) pull the open-drain FLT pin low. Fault latching persists until either EN is cycled low-high or RCIN is pulsed high. The FLT signal can directly drive an MCU interrupt pin or optocoupler input for system-level safety response.