Infineon Technologies IRAM136-1561A2

Overview

IRAM136-1561A2 from Infineon Technologies is a 600V, 15A intelligent power module (IPM) integrating six IGBTs, bootstrap diodes, gate drivers, and protection circuitry in a single DIP-26L package for 3-phase motor inverter applications. It supports 15kHz switching frequency, features under-voltage lockout, over-current shutdown, and thermal shutdown, and is used in HVAC blower drives and industrial pump inverters.

For engineers reviewing the IRAM136-1561A2 datasheet, IRAM136-1561A2 pinout, IRAM136-1561A2 application, or IRAM136-1561A2 equivalent, key selection criteria include integrated gate drive capability, built-in short-circuit protection response time, thermal resistance (R_th(j-c) = 1.2°C/W), and compatibility with 3.3V/5V logic-level PWM inputs.

Technical Context

The IRAM136-1561A2 implements a full-bridge 3-phase inverter topology with integrated high-side and low-side gate drivers, each featuring independent UVLO and desaturation detection. Its internal bootstrap circuit eliminates external high-side floating supply components.

Protection functions include cycle-by-cycle over-current shutdown with blanking time of 2.5µs, junction temperature monitoring via NTC thermistor output, and undervoltage lockout at 12.5V (±0.5V) on V_CC and V_B rails. The module operates with 3.3V or 5V-compatible input logic levels.

Key Specifications

Pinout & Package

DIP-26L (Dual In-line Package, 26-pin, leaded, 27.5mm × 19.5mm footprint) with isolated baseplate for direct heatsink mounting and creepage distance ≥4.5mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FST1561A2, IRAM136-1561A2 offers tighter thermal coupling via integrated NTC but slightly higher V_CE(sat); versus IRAMX16UP60A, it trades current headroom for smaller footprint and embedded thermal monitoring-ideal for space-constrained 1.5kW systems.

Availability

IRAM136-1561A2 is available at Aetrix Electronics and suitable for HVAC blower drives, industrial pump inverters, and refrigeration compressor controls requiring stable component supply across multi-year production cycles.

Supply support for IRAM136-1561A2 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 German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and energy applications.

The IRAM series targets cost-sensitive, high-reliability motor drive applications by integrating gate drivers, protection logic, and power devices into standardized modules with validated thermal and EMI performance.

FAQ

What is the maximum allowable case temperature for continuous operation?

The IRAM136-1561A2 is rated for continuous operation up to T_c = 100°C, verified per Infineon's qualification test standard. Exceeding this limit risks accelerated degradation of internal bond wires and silicone encapsulation, reducing lifetime below 10,000 hours. Derating curves in the datasheet specify reduced current limits above 100°C.

Does the FAULT pin require an external pull-up resistor?

Yes, the FAULT pin is open-drain and must be pulled up to a logic supply (3.3V or 5V) with a 4.7kΩ resistor. This ensures proper voltage level translation to MCU interrupt pins and avoids floating states during power-up or reset sequences. Pull-up placement should be within 5cm of the FAULT pin to minimize noise coupling.

Can the NTC output be used directly with a 12-bit ADC?

Yes-the NTC terminal provides a voltage divider output referenced to V_SS, calibrated for direct interface with 12-bit ADCs having 3.3V reference. A typical external 10kΩ pull-up to 3.3V yields 0.5–2.8V output across –40°C to 150°C, providing ±2°C temperature resolution without signal conditioning.

Is the IRAM136-1561A2 RoHS-compliant and halogen-free?

Yes, IRAM136-1561A2 conforms to RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. The module carries the "HF" marking on its top-side label and ships with IPC-1752-compliant material declarations for supply chain reporting.