Infineon Technologies IRSM515-044PA

Overview

IRSM515-044PA from Infineon Technologies (formerly International Rectifier) is a 250V, 3-phase integrated power module (IPM) for small-appliance motor drives, featuring 1.0Ω max R_DS(on) Trench FREDFETs, 3.3V logic compatibility, and 1900V_RMS isolation. It integrates six high-voltage gate drivers, bootstrap circuitry, under-voltage lockout per channel, and matched propagation delay - deployed in energy-efficient fans and pumps requiring compact, low-EMI inverter stages.

For engineers reviewing the IRSM515-044PA datasheet, IRSM515-044PA pinout, IRSM515-044PA application, or IRSM515-044PA equivalent, key selection criteria include its DIP23 package footprint, absence of NTC thermistor output, 150°C junction rating, and suitability for sensorless BLDC control with external current sensing via open-source terminals.

Technical Context

The IRSM515-044PA implements three independent half-bridge HVICs driving integrated 250V Trench FREDFETs, each with dedicated V_CC, V_B, HIN/LIN inputs, and floating supply offset outputs (U/VS1, V/VS2, W/VS3). Its driver architecture supports 3.3V logic-level PWM inputs and tolerates –V_S transients without clamping diodes.

Thermal design centers on 7.9°C/W junction-to-case resistance for the high-side V-phase MOSFET, while EMI optimization is achieved via controlled dV/dt and integrated input filtering. The module lacks internal temperature feedback - distinguishing it from the IRSM505-044 variant - and relies on external shunt or Hall-based current sensing via VR1–VR3 and U/V/W terminals.

Key Specifications

Pinout & Package

DIP23 package: 23-pin dual-in-line, through-hole mount, 1900V_RMS isolation barrier between power and logic sections. Pin 1 = COM (logic ground), Pin 17 = V+ (DC bus positive), Pins 18/21/23 = high-side floating supply offsets (U/VS1, V/VS2, W/VS3), Pins 19/20/22 = low-side source outputs (VR1, VR2, VR3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRSM505-044PA, IRSM515-044PA removes thermal sensing to reduce cost and simplify layout, while FAN7382MX shifts integration burden to the designer but enables higher performance tuning - making IRSM515-044PA optimal for cost-sensitive, volume appliance motor drives where thermal margin is managed system-wide.

Availability

IRSM515-044PA is available at Aetrix Electronics and suitable for energy-efficient ceiling fan drive, smart HVAC blower motor control, and compact water pump inverter applications requiring stable component supply, long-lifecycle availability, and industrial-grade reliability.

Supply support for IRSM515-044PA 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 acquired International Rectifier in 2015 and continues development of its µIPM™ intelligent power module portfolio for motor control and power conversion.

The IRSM5xx-044 series belongs to Infineon's µIPM™-DIP product line, designed specifically for cost-sensitive, space-constrained 3-phase BLDC motor drives in white goods and building automation systems.

FAQ

What is the maximum DC bus voltage supported by IRSM515-044PA?

The absolute maximum BVDSS rating is 250 V, but the recommended operating condition specifies V+ ≤ 200 V. This 200 V limit ensures reliable operation within safe SOA margins, accounts for voltage spikes during motor regeneration, and maintains lifetime reliability under thermal stress at 150°C junction temperature.

Does IRSM515-044PA support single-shunt current sensing?

Yes - pins VR1, VR2, and VR3 provide direct access to low-side source nodes of each phase leg, enabling accurate single-shunt current reconstruction when combined with time-multiplexed sampling and appropriate external op-amp conditioning circuitry.

Can IRSM515-044PA be used with 5 V logic controllers?

No - the device is specified for 3.3 V logic compatibility only. Input thresholds (VIN,th+ = 2.2 V, VIN,th− = 0.8 V) and quiescent current behavior are characterized at 3.3 V; applying 5 V may exceed absolute maximum ratings for LIN/HIN inputs and cause latch-up or accelerated degradation.

Is external bootstrap diode required for IRSM515-044PA?

No - integrated bootstrap functionality eliminates discrete bootstrap diodes. Internal circuitry uses VBx pins and U/VSx outputs to charge bootstrap capacitors; however, external 0.1 µF ceramic capacitors between VBx and VSx are mandatory per datasheet layout guidance to ensure stable high-side gate drive.