Infineon Technologies IRAM136-3063B

Overview

IRAM136-3063B from Infineon Technologies (formerly International Rectifier) is a 30A, 600V integrated power hybrid IC with internal shunt resistor and temperature monitor, designed as a fully isolated 3-phase inverter for AC motor drives in air conditioning compressors and light industrial systems. It integrates planar IGBTs, high-speed gate drivers, under-voltage lockout, over-current/over-temperature protection, and matched propagation delay across all six channels.

For engineers reviewing the IRAM136-3063B datasheet, IRAM136-3063B pinout, IRAM136-3063B application, or IRAM136-3063B equivalent, key selection criteria include its 2000VRMS isolation rating, 9.6 mΩ internal current-sense shunt, ±5% shunt tolerance, 15A RMS phase current capability at 100°C case temperature, and 220–360 ns programmable dead time.

Technical Context

This HIC implements a three-phase bridge topology using six discrete IGBT/diode pairs driven by an integrated high-voltage gate driver IC (based on IR21363 architecture), with independent floating high-side supplies (VB1–VB3) and common low-side logic (VCC/VSS). All six gate drive channels feature Schmitt-triggered 5V logic inputs, cross-conduction prevention, and <75 ns propagation delay matching.

The device embeds system-level protection: a 440–540 mV ITRIP threshold triggers fault shutdown within ≤3.75 μs; a built-in NTC thermistor (R25 = 100 kΩ, B = 4250 K) enables real-time junction temperature monitoring; and undervoltage lockout activates at 10.9 V (±0.2 V hysteresis) on both VCC and bootstrap rails.

Key Specifications

Pinout & Package

The IRAM136-3063B uses a thermally enhanced single-in-line package (SiP3) with integrated heat spreader and full transfer-mold isolation. The package provides 3.5 mm creepage distance and mounts via M4 screws (0.7–1.17 Nm torque).

Key Features

Applications

Equivalent & Alternatives

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

Compared with FST136-3063B, the IRAM136-3063B offers identical functionality but slightly looser shunt tolerance and higher thermal resistance-acceptable for established designs. Versus FSBB30CH60D, it delivers faster time-to-market via integrated sensing and thermal monitoring, reducing validation effort by eliminating external analog signal chains.

Availability

IRAM136-3063B is available at Aetrix Electronics and suitable for air conditioning compressor drives, refrigeration system inverters, and light industrial fan control requiring stable component supply and long-lifecycle support.

Supply support for IRAM136-3063B 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, sensor, and automotive ICs, with deep expertise in high-voltage power integration and motor control solutions.

The IRAM series targets compact, high-reliability inverter modules for white goods and industrial drives, emphasizing system-level integration-replacing discrete IGBTs, drivers, protection, and sensing functions in a single isolated package.

FAQ

What is the maximum allowable DC bus voltage for continuous operation?

The IRAM136-3063B supports a maximum positive bus input voltage (V+) of 450 VDC under recommended operating conditions. While its IGBTs are rated for 600 V blocking, sustained operation above 450 V increases risk of overvoltage stress during switching transients and exceeds the absolute maximum rating for VS1/VS2/VS3 offset voltage (400 V), which may compromise isolation integrity.

How is the internal current shunt used for over-current protection?

The 9.6 mΩ shunt develops a voltage proportional to phase current, fed to the ITRIP pin. When this voltage exceeds 490 mV (typ), the device asserts FAULT and disables all six gate drivers within 3.75 μs. The 70 mV hysteresis prevents chatter during transient overloads, and blanking time (150 ns) ignores switching noise during turn-on.

Can the TMON/FAULT pin be used for closed-loop thermal management?

Yes-the TMON/FAULT pin outputs an analog voltage proportional to die temperature via the internal NTC thermistor. By measuring this voltage with an ADC, the host MCU can implement real-time thermal derating or predictive shutdown. Its open-drain fault mode also allows wired-OR connection with other system fault signals for centralized monitoring.

What is the minimum required dead time between HIN and LIN signals?

The internal dead-time generator enforces a minimum 220 ns delay (typical 290 ns) between complementary HIN/LIN transitions. However, external dead time must exceed 400 ns to ensure proper MT matching performance. This dual-layer timing control prevents shoot-through while allowing flexibility for system-level dead-time tuning in the MCU firmware.