Infineon Technologies IRSM515-044DA

Overview

IRSM515-044DA from Infineon Technologies (formerly International Rectifier) is a 250V, 3-phase integrated power module (IPM) for brushless DC motor drives in small appliances. It integrates six Trench FREDFETs with matched 1.0Ω max R_DS(on) at 25°C, three half-bridge high-voltage gate drivers, bootstrap circuitry, and under-voltage lockout on all channels - deployed in energy-efficient fans and pumps requiring compact, low-EMI inverter stages.

For engineers reviewing the IRSM515-044DA datasheet, IRSM515-044DA pinout, IRSM515-044DA application, or IRSM515-044DA equivalent, key selection criteria include its DIP23A package, 3.3V logic compatibility, -Vs transient tolerance, open-source shunt sensing capability, and absence of integrated NTC thermistor versus IRSM505-044DA.

Technical Context

The IRSM515-044DA implements a fully integrated 3-phase inverter topology with independent high-side and low-side gate drivers per phase, each featuring matched propagation delay (0.7–1.5 µs turn-on/turn-off) and built-in deadtime insertion (~400 ns). Its driver ICs operate with floating high-side supplies (VB1–VB3 up to 275 V) referenced to VS nodes, supporting logic inputs across COM–VCC range.

It uses Trench FREDFET technology to achieve low conduction loss (R_DS(on) ≤ 1.0 Ω @ 25°C) and optimized dV/dt characteristics for EMI suppression. The module lacks internal temperature feedback (no VTH pin functionality), distinguishing it from IRSM505-044 variants, and relies on external thermal management for 150°C max junction operation.

Key Specifications

Pinout & Package

IRSM515-044DA uses a 23-pin DIP23A through-hole package with creepage-optimized lead frame and internal isolation barriers. Pin layout supports direct PCB mounting with separate high-side floating supply paths (VB1–VB3), phase outputs (U/VS1, V/VS2, W/VS3), and low-side source returns (VR1–VR3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRSM505-044DA, IRSM515-044DA removes thermal sensing but retains identical drive performance and isolation - simplifying BOM for cost-driven fan/pump applications. Versus FAN7382MX, it delivers full integration at the expense of flexibility, reducing bill-of-materials and layout area by >40%.

Availability

IRSM515-044DA is available at Aetrix Electronics and suitable for energy-efficient ceiling fan drives, compact HVAC blower controls, and smart appliance water pump systems requiring stable component supply, long-lifecycle support, and industrial-grade reliability.

Supply support for IRSM515-044DA 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 heritage from International Rectifier's IPM innovation.

The µIPM™-DIP product line delivers fully integrated, isolated 3-phase inverter modules targeting cost-sensitive, space-constrained motor drive applications in white goods and building automation.

FAQ

What is the maximum continuous output current per phase for IRSM515-044DA?

The IRSM515-044DA supports 3.0 A DC output current per MOSFET at TC = 25°C, as specified in its Absolute Maximum Ratings table. Derating is required above 25°C case temperature - e.g., ~1.8 A at TC = 100°C - based on its 7.9 °C/W thermal resistance and 150°C max junction limit.

Does IRSM515-044DA require external bootstrap diodes and capacitors?

No. The module integrates bootstrap diodes and associated circuitry internally. Only external bootstrap capacitors (typically 0.1–0.22 µF ceramic) are required per high-side leg (VB1–VB3), connected between VBx and VSx pins, as shown in the application schematic on page 8 of the datasheet.

Can IRSM515-044DA be used with 3.3 V microcontrollers without level shifters?

Yes. Its HIN/LIN inputs are 3.3 V logic compatible with VIH(min) = 2.2 V and VIL(max) = 0.8 V, allowing direct connection to standard 3.3 V MCUs. Input bias current is ≤18 µA at 3.3 V, ensuring minimal loading on GPIO pins.

How does IRSM515-044DA differ from IRSM505-044DA in thermal monitoring capability?

IRSM515-044DA has no functional VTH pin - it is internally disconnected. IRSM505-044DA provides an NTC thermistor output (R25 = 47 kΩ ±5%) on pin 11 for junction temperature sensing. This difference makes IRSM505-044DA suitable for thermal protection schemes, while IRSM515-044DA relies on external thermal sensors or system-level derating.