Infineon Technologies IRAM136-3023B

Overview

IRAM136-3023B from Infineon Technologies (formerly International Rectifier) is a 30A, 150V integrated power hybrid IC with internal shunt resistor and temperature-sensing NTC thermistor, designed as a fully isolated 3-phase inverter for low-voltage motor drives. It integrates six Advance Planar Super Rugged MOSFETs, high-speed gate drivers, overcurrent/overtemperature protection, undervoltage lockout, and matched propagation delay across all channels. Used in portable power tools operating at 48–100 VDC delivering up to 4.0 kW.

For engineers reviewing the IRAM136-3023B datasheet, IRAM136-3023B pinout, IRAM136-3023B application, or IRAM136-3023B equivalent, key selection criteria include its 2000 VRMS isolation rating, 8.3 mΩ internal shunt resistance with ±5% tolerance, 150°C max junction temperature, and Schmitt-triggered 5V logic inputs compatible with microcontroller PWM signals.

Technical Context

This HIC implements a three-phase bridge topology using six discrete MOSFETs co-packaged with a dedicated high-voltage gate driver IC (based on IR2136 architecture), enabling synchronized switching with programmable dead time and cross-conduction prevention logic. The integrated shunt resistor (8.3 mΩ, 4.5 W max dissipation) and NTC thermistor (100 kΩ @ 25°C, B = 4250 K) provide direct current and temperature feedback without external sensing components.

Thermal management relies on a thermally enhanced SiP3 package with heat spreader and full transfer mold structure, achieving 1.2 °C/W junction-to-case thermal resistance. Isolation is maintained via reinforced creepage distance (3.5 mm) and 2000 VRMS withstand voltage, supporting safe operation in Class I insulated systems without additional barrier design.

Key Specifications

Pinout & Package

The IRAM136-3023B uses a thermally enhanced SiP3 (Single in-line Package) with integrated heat spreader and full transfer mold isolation. Package outline conforms to PD-97270 Rev C mechanical drawing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FSBB30CH60C and STGIPQ3H60T-H, the IRAM136-3023B uniquely combines 150 V rating, internal shunt + NTC, and certified 2000 VRMS isolation in one SiP3 package-enabling compact, self-contained motor control for sub-100 VDC systems without sensor or isolation overhead.

Availability

IRAM136-3023B is available at Aetrix Electronics and suitable for electric power tools, light industrial pumps, medical mobility scooters, and automotive auxiliary drives requiring stable component supply and long-term production continuity.

Supply support for IRAM136-3023B 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 core expertise in high-efficiency power conversion and ruggedized motor control solutions.

The IRAM series was developed by International Rectifier (acquired by Infineon in 2015) specifically for compact, isolated, high-current 3-phase motor inverters in battery-powered equipment-emphasizing integration, thermal robustness, and functional safety readiness.

FAQ

What is the maximum continuous PWM carrier frequency supported by the IRAM136-3023B?

The device is characterized and specified for reliable operation up to 20 kHz PWM carrier frequency, as confirmed in the Absolute Maximum Ratings table and Switching Characteristics section. At this frequency, total switching losses remain within thermal limits at 30 A RMS with proper heatsinking. Operation above 20 kHz increases switching loss exponentially and may exceed the 89 W per-MOSFET power dissipation limit unless derated.

Can the internal shunt resistor be bypassed for external current sensing?

No-the 8.3 mΩ shunt is permanently integrated between the low-side source terminals and VSS, and cannot be disconnected. However, the ISense pin provides access to the shunt voltage drop, allowing either direct connection to an external amplifier or optional filtering. External sensing is possible only in parallel, not as a replacement, due to fixed internal routing.

Does the IRAM136-3023B support regenerative braking current flow?

Yes-the integrated body diodes and low R_DS(on) MOSFETs allow bidirectional current flow through each phase leg. The datasheet confirms pulsed RMS current capability of 56 A, which covers typical regen peaks. However, the internal shunt measures magnitude only; direction must be inferred from PWM state and phase voltage polarity in firmware.

How is the NTC thermistor connected and what is its biasing method?

The NTC (100 kΩ @ 25°C) is internally connected between Fault/TMO1 pin and VSS. It is biased via an internal 10 μA current source when the fault pin is actively monitored. Voltage at TMO1 varies from ~4.5 V (25°C) to ~0.8 V (125°C), enabling analog temperature readback using a single ADC channel without external resistors or op-amps.