Infineon Technologies IRSM005-800MH

Overview

IRSM005-800MH from International Rectifier is a half-bridge intelligent power module integrating two 40V, 80A MOSFETs and a high- and low-side gate driver in a single 7×8 mm PQFN package. It delivers 2.7 mΩ typical R_DS(on) per FET, supports 10–20 V gate drive supply, and features independent logic-compatible inputs (3.3/5/15 V), undervoltage lockout, and matched propagation delay - enabling compact motor drives and DC-DC converters.

For engineers reviewing the IRSM005-800MH datasheet, IRSM005-800MH pinout, IRSM005-800MH application, or IRSM005-800MH equivalent, key selection criteria include its 40 V V_DS, 80 A I_O rating at T_C = 25°C, 3.8 °C/W junction-to-pad thermal resistance, shoot-through protection via input logic table, and bootstrap-based high-side drive architecture.

Technical Context

The IRSM005-800MH implements a monolithic half-bridge topology with integrated level-shifted high-side driver and independent logic inputs (HIN/LIN). Its internal schematic enforces shoot-through prevention through complementary input decoding, while the bootstrap supply (VB/VS) enables floating high-side operation up to 225 V absolute voltage.

It operates with matched turn-on/turn-off propagation delays (160–220 ns typ.) and tight delay matching (<50 ns) between high- and low-side channels. The driver supports TTL- and CMOS-compatible logic thresholds (VIH ≥ 2.5 V, VIL ≤ 0.8 V) and includes undervoltage lockout with 0.8 V hysteresis on both VCC and VBS supplies.

Key Specifications

Pinout & Package

IRSM005-800MH uses a thermally enhanced 7×8 mm PQFN package with 28-pin layout and an exposed thermal pad (Pin 28) requiring connection to COM for optimal electrical and thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar half-bridge power stage applications.

Compared with IRS2007M and STGIPQ5C60, the IRSM005-800MH uniquely combines 40 V MOSFET integration, 7×8 mm footprint, and 3.8 °C/W thermal resistance - making it optimal for space-constrained, high-current, low-voltage motor and power conversion designs where conduction loss and thermal management are critical.

Availability

IRSM005-800MH is available at Aetrix Electronics and suitable for advanced motor drives, DC-DC synchronous buck converters, and industrial HVAC inverters requiring stable component supply, consistent thermal performance, and long-term production continuity.

Supply support for IRSM005-800MH 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

International Rectifier (now part of Infineon Technologies since 2015) was a pioneer in power MOSFET and intelligent power module design, known for high-reliability, thermally optimized semiconductor solutions.

The IRSM005-800MH belongs to IR's family of integrated half-bridge modules targeting high-power-density, low-voltage motor control and power conversion - designed specifically to replace discrete driver+FET combinations in space- and thermal-constrained applications.

FAQ

What is the maximum allowable DC bus voltage for IRSM005-800MH?

The IRSM005-800MH has a 40 V maximum drain-to-source voltage (V_DS) rating per MOSFET. Its high-side floating supply (VB) supports up to 225 V absolute voltage relative to COM, but the DC bus (V+) must remain ≤40 V to avoid avalanche breakdown. This makes it suitable for 24 V and 36 V systems, not 48 V nominal buses without derating.

How is shoot-through prevented in the IRSM005-800MH?

Shoot-through is prevented by internal logic that decodes HIN and LIN inputs: only HI/LO and LO/HI states produce active outputs; HI/HI and LO/LO force both outputs low. This hardware-level interlock eliminates reliance on external dead-time circuitry or precise MCU timing, reducing system-level failure modes in noisy environments.

Can the IRSM005-800MH be used with 3.3 V microcontroller GPIOs directly?

Yes - the IRSM005-800MH accepts 3.3 V logic inputs (HIN/LIN) with VIH ≥ 2.5 V and VIL ≤ 0.8 V. Its input threshold is independent of VCC, and internal level-shifting ensures reliable switching even when VCC = 15 V. No external level shifters or pull-ups are required for standard 3.3 V CMOS outputs.

What is the role of the exposed thermal pad (Pin 28)?

Pin 28 is an exposed copper pad on the bottom of the PQFN package. It must be soldered to a large COM-connected copper area on the PCB to serve as the primary thermal conduction path (R_th(J-B) = 3.8 °C/W) and to reduce high-frequency gate loop inductance. Leaving it unconnected degrades thermal performance by >40% and increases EMI susceptibility.