Infineon Technologies IRSM836-084MA

Overview

IRSM836-084MA from Infineon Technologies (formerly International Rectifier) is a 7A, 250V 3-phase integrated power module (IPM) for brushless AC motor drives in small appliances. It integrates six Trench MOSFETs, high- and low-side gate drivers, bootstrap diodes/resistors, under-voltage lockout, over-current protection, fault reporting, and 3.3V-compatible Schmitt-trigger inputs - all in a 12×12 mm PQFN package with 1500 V_RMS isolation. It delivers up to ~150 W motor power without heatsink in energy-efficient fans and pumps.

For engineers reviewing the IRSM836-084MA datasheet, IRSM836-084MA pinout, IRSM836-084MA application, or IRSM836-084MA equivalent, key selection criteria include its 250 V blocking voltage, matched 0.7–1.5 µs propagation delays across all channels, integrated shunt-sensing support via open-source terminals, 2.9 °C/W junction-to-case thermal resistance, and industrial-grade qualification per JEDEC JESD47E.

Technical Context

This IPM implements a fully integrated 3-phase inverter stage with independent high-side (VB1–VB3) and low-side (VSS/COM) floating supplies, enabling direct connection to 200 V DC bus inputs. Its driver IC features cross-conduction prevention logic, 200 ns input filtering on HIN/LIN, and 100–330 ns ITRIP blanking to suppress false trip during switching transients.

The module uses matched propagation delay design (±0.1 µs typical) and optimized dV/dt control to balance conduction loss and EMI performance. Fault signaling is implemented via open-drain FLT pin with 50–100 Ω pull-down resistance, activated within 600–1000 ns after ITRIP threshold violation.

Key Specifications

Pinout & Package

IRSM836-084MA is housed in a 36-lead PQFN package (12 × 12 mm, 1.0 mm height) with exposed thermal pad on bottom side for PCB-level heat dissipation. The package provides reinforced isolation between power and logic domains, and integrates bootstrap components internally.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSB50825 and STK621-031, IRSM836-084MA uniquely combines 250 V/7 A rating, 1500 V_RMS isolation, open-source sensing, and fully integrated bootstrap in a 12×12 mm footprint - making it optimal for safety-certified, space-constrained appliance motor drives.

Availability

IRSM836-084MA is available at Aetrix Electronics and suitable for energy-efficient ceiling fans, compact HVAC blowers, smart washing machine drain pumps, and IoT-enabled air purifier fans requiring stable component supply and long-term lifecycle support.

Supply support for IRSM836-084MA 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, sensor, and automotive ICs, with deep expertise in high-voltage power integration and motor control solutions.

The IRSM836 series belongs to Infineon's Intelligent Power Module family, designed specifically for cost-sensitive, space-constrained, and safety-certified small-appliance motor drives requiring integrated protection and minimal external components.

FAQ

Does IRSM836-084MA require an external heatsink?

No. The module functions without a heatsink due to its 2.9 °C/W junction-to-case thermal resistance and optimized R_DS(on) of 0.31–0.45 Ω. It delivers up to ~150 W motor power when mounted on a 4-layer PCB with ≥200 mm² copper pour under the exposed thermal pad. Thermal derating begins above 100°C case temperature.

What is the purpose of the RCIN pin?

The RCIN pin serves as an external reset or enable override input with an 8 V positive-going threshold. When asserted, it forces all outputs off and clears internal fault latches. It is electrically isolated from logic inputs and shares the same voltage tolerance as VCC (−0.3 to 20 V), allowing direct connection to microcontroller GPIO or system supervisor ICs.

How does the ITRIP protection work with shunt sensing?

ITRIP accepts a differential voltage from a low-side shunt resistor. At 0.46 V (typical threshold), it triggers internal shutdown within 950–1300 ns. The 100–330 ns blanking window suppresses false trips during PWM turn-on transients. Open-source terminals (VS1–VS3) enable high-side shunt configurations with external op-amps, though low-side sensing is directly supported.

Is IRSM836-084MA compatible with 3.3 V microcontrollers?

Yes. All logic inputs (HIN1–3, LIN1–3, EN, ITRIP, RCIN) feature 3.3 V Schmitt-trigger compatibility with 2.5 V rising and 0.8 V falling thresholds. Input bias current remains ≤180 µA at 4 V, ensuring direct interfacing with standard MCU GPIOs without level-shifting circuitry.