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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Full Half-Bridge (H Bridge) Drivers

International Test Instruments Corporation IRSM505-044DA

Name: IRSM505-044DA
Brand: International Test Instruments Corporation
SKU: IRSM505-044DA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRSM505-044DA

Manufacturer:: International Test Instruments Corporation

Category:: Full Half-Bridge (H Bridge) Drivers

Package:: 23-DIP Module (0.573", 14.55mm)

Datasheet:: IRSM505-044DA.pdf

Description:: IC HALF BRIDGE DRIVER 3A 23DIP

Quantity:: RFQ Add To RFQ list

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Inventory:5,640

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Product details

Overview

IRSM505-044DA from Infineon Technologies (formerly International Rectifier) is a 250V, 3-phase integrated power module (IPM) with integrated high-voltage half-bridge gate drivers, 1.0Ω max R_DS(on) Trench FREDFETs, and on-board NTC thermistor for temperature feedback. It delivers 3.0A DC per phase, supports 20kHz PWM carrier frequency, and is qualified for industrial motor drive applications in energy-efficient small appliances such as fans and pumps.

For engineers reviewing the IRSM505-044DA datasheet, IRSM505-044DA pinout, IRSM505-044DA application, or IRSM505-044DA equivalent, key selection criteria include its DIP23A package, 1900V_RMS isolation, 3.3V logic compatibility, matched propagation delay (<1.5µs), and integrated bootstrap functionality for simplified gate drive design.

Technical Context

This IPM integrates three independent high-voltage IC (HVIC) half-bridge drivers with matched propagation delays (0.7–1.5µs), under-voltage lockout on all channels, and optimized dV/dt control to balance switching loss and EMI performance. Each channel includes open-source capability for single-leg or shunt-based current sensing.

The module features ruggedized Trench FREDFET technology enabling low conduction loss (R_DS(on) = 0.8–1.0Ω @ 25°C) and fast body diode recovery (E_REC = 3–5µJ). Its VTH pin provides direct access to an integrated 47kΩ NTC thermistor (B = 4050K) for real-time junction temperature monitoring up to 125°C.

Key Specifications

Parameter	Value and Actual Design Meaning
BVDSS	250V blocking voltage - enables operation across 200V DC bus with margin for transients
RDS(on) max	1.0Ω @ 25°C - defines conduction loss and thermal rise at rated 3.0A DC output
IO per MOSFET	3.0A DC @ TC=25°C - sets continuous motor phase current capability without derating
VISO	1900V_RMS/1min - ensures reinforced isolation between power and logic domains
Fp	20kHz PWM carrier frequency - supports smooth sinusoidal motor control with minimal audible noise
R25 (NTC)	47kΩ ±5% @ 25°C - provides calibrated resistance baseline for accurate temperature compensation
Rth(J-C)	7.9°C/W - determines thermal path efficiency from junction to case for heatsink sizing

Pinout & Package

DIP23A package: 23-pin dual-in-line, through-hole mount, with creepage/clearance optimized for 250V systems and 1900V_RMS isolation rating.

Pin/Terminal	Circuit Role	Design Meaning
1 COM	Logic ground reference	Common return for all low-side driver inputs and VCC supplies
2 VB1–VB3	High-side floating supply inputs	Accept bootstrap-charged voltage (up to 275V) to drive upper FET gates
4/5, 9/10, 14/15 HINx/LINx	Phase x gate input pairs	3.3V-compatible logic inputs with internal filtering (300ns typical)
11 VTH	NTC thermistor output	Provides analog voltage proportional to die temperature via 47kΩ NTC
17 V+	DC bus positive terminal	Connects to main 200V DC input; referenced to COM for low-side switching
18/21/23 U/VS1, V/VS2, W/VS3	High-side floating supply offset outputs	Enable bootstrap capacitor charging during low-side conduction
19/20/22 VR1–VR3	Low-side source terminals	Provide phase current return paths and support shunt-based current sensing

Key Features

Feature	Design Value
Integrated bootstrap circuitry	Eliminates external diodes/capacitors for high-side gate drive, reducing BOM count and layout area
Matched propagation delay	≤1.5µs variation across all six channels ensures precise deadtime control and prevents shoot-through
Open-source configuration	Enables flexible current sensing using either single-shunt or leg-shunt topologies in sensorless FOC
3.3V logic interface	Direct compatibility with modern MCU GPIOs without level-shifting, simplifying controller integration
Robust negative transient tolerance	Driver withstands –Vs transients, enhancing reliability in noisy motor drive environments

Applications

Energy-Efficient Ceiling Fan Drive

Small Appliance Water Pump Control

Use Scenario: Sensorless sinusoidal control of permanent magnet synchronous motors in residential ceiling fans.

IC Role / Device Role / Timing Role: 3-phase inverter stage delivering variable-frequency, variable-voltage output synchronized to rotor position estimates.

Use Value: Enables >85% system efficiency and <25dB acoustic noise via 20kHz PWM and low R_DS(on) conduction loss.

Use Scenario: Closed-loop speed regulation of brushless DC water pumps in coffee machines and dishwashers.

IC Role / Device Role / Timing Role: Power stage executing commutation commands from iMotion™ digital controller with precise timing alignment.

Use Value: Delivers stable 3.0A phase current at 200V DC bus while maintaining thermal safety via integrated NTC feedback.

Smart HVAC Blower Module

Portable Air Purifier Motor System

Use Scenario: Variable-speed blower control in compact HVAC units requiring EMI-compliant operation.

IC Role / Device Role / Timing Role: High-voltage inverter with optimized dV/dt and built-in EMI suppression filters.

Use Value: Meets CISPR-11 Class B emissions limits without external snubbers due to controlled switching transitions.

Use Scenario: Ultra-compact motor drive in battery-powered air purifiers with space-constrained PCB layouts.

IC Role / Device Role / Timing Role: Integrated power + driver solution minimizing footprint versus discrete gate driver + MOSFET designs.

Use Value: Reduces total component count by 12+ parts and eliminates gate drive loop routing complexity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRSM515-044DA	No integrated NTC thermistor; identical electrical specs and pinout otherwise	Suitable where external temperature sensing is already implemented or not required	Select when thermal monitoring is handled externally or cost sensitivity outweighs on-die sensing benefit
FAN7382MX	Standalone 3-channel HV gate driver IC; requires external 250V MOSFETs and bootstrap components	Offers greater flexibility in MOSFET selection but increases design complexity and board area	Choose for custom optimization of R_DS(on), SOA, or thermal performance beyond fixed IPM constraints

Compared with IRSM515-044DA, the IRSM505-044DA adds thermal monitoring without altering drive performance or footprint; versus FAN7382MX, it trades design flexibility for faster time-to-market and reduced layout risk in appliance-grade motor drives.

Availability

IRSM505-044DA is available at Aetrix Electronics and suitable for energy-efficient fan drives, compact water pump controllers, and smart HVAC blower modules requiring stable component supply and long-term industrial qualification.

Supply support for IRSM505-044DA 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 acquired International Rectifier in 2015 and continues to develop and support its high-performance power semiconductor portfolio.

The IRSM505-044DA belongs to the µIPM™-DIP family, engineered specifically for cost-sensitive, space-constrained 3-phase BLDC/PMSM motor drives in white goods and small appliances.

FAQ

What is the maximum DC bus voltage supported by IRSM505-044DA?

The module is rated for 250V BVDSS with recommended operating V+ up to 200V DC. This provides 50V margin for voltage spikes and ripple, aligning with IEC 60335-1 requirements for household appliances. Operation above 200V requires validation of thermal and dv/dt stress under actual load conditions.

How is the NTC thermistor accessed and calibrated?

VTH (Pin 11) connects directly to a 47kΩ ±5% NTC with B-constant 4050K. Calibration uses standard two-point lookup (25°C and 125°C resistance values) per the datasheet's R25/R125 specs. No external biasing is needed - the thermistor forms a voltage divider with internal circuitry when VCC is applied.

Can IRSM505-044DA be used with 5V logic microcontrollers?

Yes - its LIN/HIN inputs tolerate 0–5V logic levels and are fully compatible with 5V MCUs. The 3.3V compatibility refers to minimum high-level threshold (VIN,th+ = 2.2V), not a strict supply requirement. No level shifters are needed for either 3.3V or 5V controllers.

What is the purpose of the NC pins (6, 16) and how should they be handled?

Pins 6 and 16 are unconnected internally and must remain floating - no soldering, grounding, or routing. They exist for mechanical symmetry and package compatibility across the IRSM5xx-044 series. Leaving them unconnected avoids unintended coupling or parasitic paths that could affect noise immunity or thermal performance.

IRSM505-044DA Specifications

Product attributes: Attribute value

Manufacturer:: International Test Instruments Corporation

Series:: -

Package/Case:: 23-DIP Module (0.573", 14.55mm)

Packaging:: Bulk

Product Status:: Active

Output Configuration:: Half Bridge (3)

Applications:: AC Motors

Interface:: Logic

Load Type:: Inductive

Technology:: MOSFET (Metal Oxide)

Rds On (Typ):: 800mOhm LS, 800mOhm HS

Current - Output / Channel:: 3A

Current - Peak Output:: 15A

Voltage - Supply:: 13.5V ~ 16.5V

Voltage - Load:: 200V (Max)

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Features:: Bootstrap Circuit

Fault Protection:: UVLO

Mounting Type:: Through Hole

Supplier Device Package:: 23-DIP

IRSM505-044DA FAQ

1.How can I place an order for IRSM505-044DA through Aetrix?

Please submit a Request for Quotation (RFQ) for IRSM505-044DA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IRSM505-044DA reliable?

The price and inventory of IRSM505-044DA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRSM505-044DA is usually 5 days.

3.What payment methods are accepted for IRSM505-044DA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRSM505-044DA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRSM505-044DA?

IRSM505-044DA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRSM505-044DA order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IRSM505-044DA?

For technical support, including IRSM505-044DA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRSM505-044DA requirements.

6.How does Aetrix verify that IRSM505-044DA is sourced from the original manufacturer or authorized distributors?

All IRSM505-044DA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IRSM505-044DA meets industry standards.

7.What is the process for return or replacement of IRSM505-044DA?

All IRSM505-044DA units undergo pre-shipment inspection (PSI). If there is an issue with IRSM505-044DA, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IRSM505-044DA part is unused and in its original packaging.

Return procedure for IRSM505-044DA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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