Infineon Technologies IR21362

Overview

IR21362 from Infineon Technologies is a high-voltage, high-speed 3-phase bridge driver IC with three independent half-bridge gate drivers for N-channel MOSFETs or IGBTs. It operates up to +600V VS offset, supports 11.5–20V VCC supply, features in-phase high-side output logic (vs. out-of-phase in IR2136), includes programmable fault-clear delay via RCIN, and delivers matched 400ns/380ns typ. turn-on/turn-off propagation delays. Used in industrial motor inverters and servo drives.

For engineers reviewing the IR21362 datasheet, IR21362 pinout, IR21362 application, or IR21362 equivalent, key selection considerations include its 10.4V/9.4V VCC UVLO thresholds, 3.3V logic compatibility, external current-sense trip input (ITRIP), open-drain FAULT reporting, and bootstrap-compatible floating channel design for high-side gate driving.

Technical Context

The IR21362 integrates three identical high- and low-side driver channels with HVIC-based level-shifting, enabling operation with VS referenced up to +600V relative to COM. Each channel includes dead-time insertion, shoot-through prevention logic, and input noise filtering with 200ns typical filter time.

Its in-phase high-side output behavior (HIN → HO) distinguishes it from IR2136/IR21363 families and simplifies PWM control in synchronous rectified topologies. Fault management uses an externally programmable RC network on RCIN to set auto-clear delay (1.3–2ms), while undervoltage lockout (UVLO) independently monitors both VCC and VB supplies.

Key Specifications

Pinout & Package

IR21362 is available in 28-lead PDIP, 28-lead SOIC, and 44-lead PLCC packages. Pin assignments are identical across packages per IR's lead assignment documentation (PD60166 revS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IR2136 and IR21363, the IR21362 offers in-phase high-side logic-reducing external component count-and a mid-range 10.4V/9.4V UVLO that balances 12V system compatibility with noise margin, making it optimal for cost-sensitive industrial inverters requiring simplified control firmware.

Availability

IR21362 is available at Aetrix Electronics and suitable for industrial motor inverters, servo drive controllers, UPS systems, and electric vehicle onboard chargers requiring stable component supply and long-term lifecycle support.

Supply support for IR21362 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 drivers and silicon carbide solutions.

The IR2136x family was designed specifically for ruggedized 3-phase inverter applications demanding high noise immunity, precise timing, and integrated protection-targeting motor drives, renewable energy inverters, and industrial automation systems.

FAQ

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

The IR21362 is rated for 50 V/ns dV/dt at the VS1–VS3 pins under recommended operating conditions. This immunity is achieved through proprietary HVIC level-shifter design and internal noise filtering, enabling reliable operation in fast-switching SiC or GaN-based inverters where high dv/dt transients are common on the high-side source node.

How does the RCIN pin configure fault-clear timing?

The RCIN pin accepts an external RC network (e.g., 2 MΩ resistor + 1 nF capacitor) to set the fault-clear delay. When FAULT is asserted, the internal circuit begins charging the capacitor; once RCIN voltage exceeds 8 V, the fault latch resets and outputs resume normal operation. Typical delay ranges from 1.3 ms to 2 ms depending on R and C values.

Can IR21362 drive both MOSFETs and IGBTs?

Yes-the IR21362 is specified to drive both N-channel power MOSFETs and IGBTs. Its 200 mA peak high-side and 350 mA peak low-side output currents, combined with 125 ns rise time and 75 ns fall time, support gate charge requirements of devices up to 1200V/100A class when paired with appropriate external gate resistors and bootstrap components.

Is there internal protection against shoot-through?

Yes-hardware-based cross-conduction prevention logic enforces minimum deadtime of 220 ns between complementary HO/LO transitions per channel. This logic operates independently of input timing and remains active even during rapid input edges or noise-induced glitches, eliminating reliance on MCU-generated deadtime or external logic.