Infineon Technologies IR21014S

Overview

IR21014S from Infineon Technologies is a high-voltage, high-speed dual-channel gate driver IC for N-channel MOSFETs and IGBTs, featuring independent high-side (HO) and low-side (LO) outputs, 600 V offset voltage rating, 130 mA/270 mA peak output current, and matched propagation delays of 160 ns (ton) and 150 ns (toff). It enables half-bridge motor control in industrial inverters.

For engineers reviewing the IR21014S datasheet, IR21014S pinout, IR21014S application, or IR21014S equivalent, key selection criteria include bootstrap-compatible floating channel operation up to +600 V, 10–20 V gate drive supply range, 5 V Schmitt-triggered logic inputs, undervoltage lockout thresholds (8.2 V typical), and phase-aligned input-to-output response.

Technical Context

The IR21014S integrates a high-voltage level shifter and latch-immune CMOS logic to support robust high-side switching at VS = +600 V with dV/dt immunity up to 50 V/ns. Its floating channel uses bootstrap biasing and features dedicated VB (high-side supply) and VS (floating return) terminals.

Both channels operate with matched timing: typ. 160 ns turn-on and 150 ns turn-off delays, ≤50 ns delay matching between HO and LO, and rail-to-rail output swing referenced to their respective supplies (VB/VS for HO, VCC/COM for LO).

Key Specifications

Pinout & Package

IR21014S is housed in an 8-lead SOIC package (narrow body, 150 mil width) with surface-mount footprint and standard JEDEC MS-012AC outline.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IR2101S and IRS21844SPbF, the IR21014S offers optimal balance of proven 600 V ruggedness, strict delay matching, and SOIC-8 compatibility-making it ideal for cost-sensitive industrial inverter platforms requiring field-proven reliability.

Availability

IR21014S is available at Aetrix Electronics and suitable for industrial motor drives, UPS inverters, solar microinverters, and induction heating systems requiring stable component supply and long-term manufacturability.

Supply support for IR21014S 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 IR21xx family was designed specifically for robust, cost-effective half-bridge gate driving in AC motor drives, UPS, and renewable energy inverters-emphasizing dV/dt immunity, timing precision, and bootstrap simplicity.

FAQ

What is the maximum allowable dV/dt on the VS pin?

The IR21014S is rated for 50 V/ns dV/dt on the VS pin under recommended operating conditions. This specification ensures reliable level-shifting performance during fast switching transitions in high-voltage half-bridge configurations, preventing false triggering or latch-up in the high-side driver channel.

Can IR21014S drive both MOSFETs and IGBTs?

Yes-the IR21014S is explicitly characterized to drive both N-channel power MOSFETs and IGBTs. Its 130 mA high-side source and 270 mA low-side sink currents, combined with rail-to-rail output swing and 600 V offset capability, meet gate drive requirements for typical 600 V-class discrete and module-based power switches.

Is a bootstrap diode required externally?

Yes-an external fast-recovery or Schottky bootstrap diode is required between VCC and VB to charge the bootstrap capacitor during low-side conduction. The IR21014S does not integrate this diode; omission will cause high-side drive failure after initial startup due to VB supply depletion.

What is the purpose of the COM and VS pins?

COM serves as the reference ground for the low-side driver (LO), logic circuitry, and VCC supply. VS is the floating return for the high-side driver (HO) and bootstrap supply (VB), tracking the switching node voltage-enabling the high-side output to function correctly even when biased up to +600 V above COM.