Infineon Technologies IRS21064STRPBF

Overview

IRS21064STRPBF from Infineon Technologies is a high-voltage, high-speed dual-channel gate driver IC for N-channel MOSFETs and IGBTs, featuring independent high-side (up to +600 V) and low-side outputs with matched 220/200 ns propagation delays, 10–20 V gate drive supply range, and 3.3 V/5 V/15 V logic-compatible inputs. It enables half-bridge motor control in industrial inverters.

For engineers reviewing the IRS21064STRPBF datasheet, IRS21064STRPBF pinout, IRS21064STRPBF application, or IRS21064STRPBF equivalent, key selection criteria include floating channel dV/dt immunity, VSS logic ground separation, undervoltage lockout thresholds (8.2–9.8 V), and bootstrap-compatible high-side operation up to 600 V.

Technical Context

The IRS21064STRPBF integrates a high-voltage level shifter and latch-immune CMOS logic to support robust operation across −5 V to +600 V VS offset. Its dual independent input architecture (HIN/LIN) eliminates internal dead-time generation, requiring external timing control.

It features separate logic ground (VSS) and power return (COM), enabling ±5 V ground offset tolerance. Undervoltage detection operates independently on VCC and VB supplies with hysteresis (0.7 V typical), ensuring safe turn-off during brownout conditions.

Key Specifications

Pinout & Package

IRS21064STRPBF is housed in a 14-lead SOIC package with exposed pad for thermal enhancement. Pin assignments are validated per Infineon PD60246 datasheet and confirmed on Digi-Key and Mouser product pages.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IRS2106STRPBF and IR2110SPBF, IRS21064STRPBF provides superior noise immunity via VSS isolation, tighter delay matching for high-frequency PWM, and optimized UVLO for stable 3.3 V logic interfacing-making it preferred for compact, high-density motor control designs.

Availability

IRS21064STRPBF is available at Aetrix Electronics and suitable for industrial motor inverters, appliance BLDC drives, solar microinverters, and UPS output stages requiring stable component supply and long-term production continuity.

Supply support for IRS21064STRPBF 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 MCUs, and high-voltage analog ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

The IRS21064 belongs to Infineon's HVIC (High-Voltage IC) driver family, engineered specifically for robust, high-efficiency half-bridge and three-phase inverter systems in industrial and consumer power electronics.

FAQ

What is the purpose of the VSS pin on the IRS21064STRPBF?

VSS serves as a dedicated logic ground reference for HIN and LIN inputs, electrically isolated from the noisy power ground (COM). This separation prevents switching noise from corrupting digital control signals, enabling reliable operation in high-di/dt environments like motor drives and inverters where COM experiences large transient currents.

Can IRS21064STRPBF drive SiC MOSFETs?

Yes-its 10–20 V gate drive supply range, 290 mA HO peak source current, and 220 ns turn-on delay support fast-switching SiC MOSFETs with Qg ≤ 50 nC. However, external negative turn-off bias or active Miller clamp may be needed for full robustness in hard-switching SiC applications above 100 kHz.

Does IRS21064STRPBF include built-in dead-time generation?

No-the IRS21064STRPBF has independent HIN and LIN inputs with no internal dead-time circuitry. Dead time must be generated externally by the controller (e.g., MCU timer or FPGA logic) to prevent shoot-through. This design gives full flexibility for adaptive dead-time algorithms and optimal efficiency tuning.

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

The absolute maximum dV/dt rating on VS is 50 V/ns, verified under JEDEC test conditions using an 8-lead PDIP package. In 14-lead SOIC (IRS21064STRPBF), layout-dependent parasitics may reduce effective immunity; proper PCB routing-short traces, ground plane shielding, and minimized loop area-is essential to maintain this rating in production systems.