Infineon Technologies IRSM836-035MATR

Overview

IRSM836-035MATR from Infineon Technologies (formerly International Rectifier) is a 3A, 500V integrated power module (IPM) for 3-phase AC motor drives in small appliances. It integrates six Trench FREDFETs, high- and low-side gate drivers, bootstrap diodes, under-voltage lockout, over-current protection, and fault reporting in a single 12×12 mm PQFN package. It delivers up to ~110W motor power without heatsink and supports PWM carrier frequencies up to 20 kHz in energy-efficient fans and pumps.

For engineers reviewing the IRSM836-035MATR datasheet, IRSM836-035MATR pinout, IRSM835MATR application, or IRSM836-035MATR equivalent, key selection criteria include its 500V blocking voltage, 3A continuous output per MOSFET, 1500 VRMS isolation, 3.3V Schmitt-triggered logic inputs, and integrated ITRIP-based current sensing with 100–330 ns blanking time.

Technical Context

This IPM implements a fully integrated 3-phase inverter stage with independent high-side (HIN1–3) and low-side (LIN1–3) gate drivers, each featuring matched propagation delay (0.7–1.5 µs), cross-conduction prevention logic, and optimized dV/dt control for EMI/loss trade-offs. The internal bootstrap circuit eliminates external diodes and capacitors for high-side floating supply generation.

It uses open-source shunt terminals (VS1–VS3) for leg-current sensing, accepts 3.3V logic-level inputs with hysteresis, and provides active-high FAULT reporting via open-drain output. Protection includes under-voltage lockout on both VCC (8.2–9.8 V threshold) and VB supplies, plus ITRIP-triggered shutdown with 950–1300 ns response latency.

Key Specifications

Pinout & Package

IRSM836-035MATR is housed in a 36-lead PQFN package (12 × 12 mm, 1.0 mm height) with exposed thermal pad on bottom side for direct PCB copper thermal coupling. The package provides reinforced isolation between power and logic domains.

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, IRSM836-035MATR offers the smallest surface-mount footprint (12×12 mm), integrated bootstrap, and dedicated ITRIP analog input-making it optimal for space-constrained, cost-sensitive, and shunt-based current-sensing designs in small appliances.

Availability

IRSM836-035MATR is available at Aetrix Electronics and suitable for energy-efficient ceiling fans, compact water pumps, smart HVAC blowers, and portable air purifiers requiring stable component supply and industrial-grade qualification.

Supply support for IRSM836-035MATR 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 integration and motor control.

The IRSM836 series belongs to Infineon's Intelligent Power Module (IPM) product line, engineered specifically for cost-sensitive, space-constrained 3-phase AC motor drives in white goods and small appliances.

FAQ

Does IRSM836-035MATR require an external heatsink?

No. The module is rated for up to ~110W motor power without a heatsink, enabled by its low RDS(on) (1.85–2.2 Ω), 2.2 °C/W junction-to-case-bottom thermal resistance, and exposed thermal pad design. Thermal performance assumes adequate PCB copper area (≥4 cm² 2 oz Cu) under the package.

What is the function of the VS1–VS3 pins?

VS1–VS3 are open-source terminals tied to the source nodes of the low-side MOSFETs in each phase. They enable low-side shunt resistor current sensing referenced to COM, supporting cycle-by-cycle over-current protection via the ITRIP input without high-side sensing complexity or level-shifting circuitry.

Can IRSM836-035MATR operate with 3.3V logic inputs only?

Yes. All digital inputs (HINx, LINx, EN, ITRIP, RCIN) are 3.3V Schmitt-triggered with defined thresholds (VIN,th+ = 2.5 V, VIN,th− = 0.8 V). No level-shifting is required when driven directly from 3.3V microcontrollers or gate drivers, simplifying interface design.

How does the FAULT pin behave during over-current events?

The FAULT pin is an open-drain output that pulls low within 600–1000 ns after ITRIP threshold violation. It remains latched low until the EN pin is cycled low-high or VCC/VB supplies recover from under-voltage conditions, providing reliable fault signaling to host controllers without external debouncing.