Infineon Technologies IR2131JTRPBF

Overview

IR2131JTRPBF from Infineon Technologies is a high-voltage, high-speed 3-phase gate driver IC with independent high-side and low-side outputs. It integrates six drivers (3 high-side, 3 low-side), supports up to 600 V offset voltage, delivers ±160 mA / +360 mA peak output current, operates from 10–20 V supply, and features matched 1.3 µs/0.6 µs typical propagation delays. It is used in 3-phase motor inverters for industrial AC drives.

For engineers reviewing the IR2131JTRPBF datasheet, IR2131JTRPBF pinout, IR2131JTRPBF application, or IR2131JTRPBF equivalent, key selection criteria include bootstrap-compatible floating channel operation up to +600 V, integrated over-current shutdown via ITRIP pin, undervoltage lockout on both VBS and VCC, and 2.5 V logic compatibility across all six inputs.

Technical Context

The IR2131JTRPBF employs proprietary HVIC (High-Voltage IC) technology to enable monolithic integration of three isolated high-side channels referenced to floating VS nodes, each capable of sustaining 600 V offset while maintaining dV/dt immunity. Its logic inputs accept CMOS/LSTTL signals down to 2.5 V and drive N-channel MOSFETs or IGBTs in bridge configurations.

All six output channels feature matched propagation delay (typ. 1.3 µs turn-on, 0.6 µs turn-off), independent UVLO monitoring per supply rail (VBS and VCC), and an open-drain FAULT output that asserts low upon over-current, UVLO, or shutdown activation. The ITRIP input enables external current-sense-based fault detection with 400–1000 ns response latency.

Key Specifications

Pinout & Package

IR2131JTRPBF is packaged in a 28-lead SOIC (wide body, MS-013AE) with creepage/clearance optimized for 600 V isolation. Pin assignments are defined relative to COM (low-side return) and VSx (high-side floating returns).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-phase high-voltage gate driver applications.

Compared with IRS2330JPbF and UCC27211D, IR2131JTRPBF offers unique integration of dedicated ITRIP input, dual-rail UVLO, and matched propagation delay across all six channels-making it optimal for cost-sensitive, safety-critical 3-phase inverter platforms requiring minimal external components and deterministic fault response.

Availability

IR2131JTRPBF is available at Aetrix Electronics and suitable for industrial AC motor drives, BLDC controllers, solar microinverters, and uninterruptible power supplies requiring stable component supply and long-term production continuity.

Supply support for IR2131JTRPBF 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 management, automotive, and industrial control ICs, with leadership in high-voltage gate driver innovation since the 1990s.

The IR2131 product line was designed specifically for ruggedized, cost-effective 3-phase inverter systems in industrial motor control, offering monolithic integration of floating channel drivers with hardware fault protection-reducing reliance on discrete isolation and protection circuitry.

FAQ

What is the maximum allowable dV/dt at the VS pins?

The IR2131JTRPBF is rated for up to 50 V/ns dV/dt on its high-side floating supply returns (VS1,2,3). This immunity ensures reliable operation during fast-switching events in 600 V bridge circuits without false triggering of internal level-shifters or logic errors.

Can the ITRIP pin be left unconnected?

No. The ITRIP pin must be either connected to a current-sense resistor network or actively pulled to VSS via a 10 kΩ resistor. Leaving it floating may cause unpredictable shutdown behavior due to noise coupling into the high-gain comparator input.

Does IR2131JTRPBF support 100% duty cycle on high-side outputs?

No. Due to its bootstrap gate drive architecture, continuous high-side conduction is not supported. A minimum low-time (typically >1 µs) is required on the corresponding low-side switch to recharge the bootstrap capacitor; for 100% duty cycle, an isolated DC/DC supply is needed.

What thermal derating applies above 25°C ambient?

The SOIC package has R_thJA = 78°C/W. At 70°C ambient, maximum allowable power dissipation drops to ~0.9 W (calculated as (150°C − 70°C)/78°C/W). Board layout with copper pour under the exposed pad (if present) and airflow improves real-world thermal performance beyond this rating.