Infineon Technologies IR2133

Overview

IR2133 from Infineon Technologies (formerly International Rectifier) 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 supports up to 600V offset voltage, delivers ±200 mA / +420 mA peak output current, features 750/700 ns typical turn-on/turn-off propagation delay, and includes integrated current-sense amplifier and over-current shutdown. It is used in motor inverters for HVAC compressors and industrial AC drives.

For engineers reviewing the IR2133 datasheet, IR2133 pinout, IR2133 application, or IR2133 equivalent, key selection considerations include floating channel operation up to 600V, 2.5V logic compatibility, matched propagation delays across all six channels, undervoltage lockout on both VCC and VB supplies, and integrated analog current feedback via CA+/CA−/CAO pins.

Technical Context

The IR2133 integrates three isolated high-side and three referenced low-side drivers using proprietary HVIC technology, enabling robust monolithic construction for bootstrap-based high-side gate driving. Its floating channels tolerate dV/dt transients up to 50 V/ns and operate with VS offset from COM −5 V to +600 V.

It embeds a precision current-sense amplifier (input offset ≤30 mV, CMRR ≥70 dB) with programmable blanking time (400 ns typ.) and fault latching via open-drain FAULT output. Shutdown is controlled by SD input, while FLT-CLR enables asynchronous fault clearing - both with negative logic and internal 5.2 V zener clamping.

Key Specifications

Pinout & Package

Available in 28-lead SOIC (wide body), 28-lead PDIP, and 44-lead PLCC (12 leads omitted). All packages share identical pin function mapping per the Lead Assignments diagram in PD60107 revX.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IR2135, the IR2133 offers lower VBS UVLO threshold and tighter hysteresis, improving startup reliability in marginal supply conditions; versus IRS2330, it provides built-in current amplification and fault latching - critical for safety-critical motor control loops.

Availability

IR2133 is available at Aetrix Electronics and suitable for industrial motor inverters, HVAC compressor drives, and electric bicycle controllers requiring stable component supply across extended production lifecycles.

Supply support for IR2133 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, automotive, and industrial control solutions, with deep expertise in high-voltage IC design and manufacturing.

The IR21xx family was developed specifically for ruggedized 3-phase motor drive applications, emphasizing integrated protection, bootstrap-compatible high-side driving, and analog current monitoring in a single monolithic package.

FAQ

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

The IR2133 is rated for dV/dt immunity up to 50 V/ns at the VS1–3 pins, verified under test conditions per PD60107 revX. This tolerance allows reliable operation in fast-switching 600 V IGBT inverters without false triggering of high-side logic, provided PCB layout minimizes parasitic inductance in the VS return path.

Can the CA amplifier be used for differential current sensing?

Yes - the CA+ and CA− inputs form a true differential pair with ≥70 dB common-mode rejection ratio. When connected across a shunt resistor placed in the low-side return path (COM), it rejects common-mode voltage from switching noise and delivers accurate analog current representation at CAO, usable directly by a 12-bit ADC.

Is IR2133 pin-compatible with IR2135?

Yes - IR2133 and IR2135 share identical pinout, package options, and functional block diagram. The only differences are in VBS undervoltage lockout thresholds (8.6 V vs. 10.4 V typ.) and hysteresis (0.4 V vs. 1.0 V), making them drop-in replacements where supply regulation meets the higher threshold requirement.

Does IR2133 require external bootstrap diodes?

Yes - the IR2133 does not integrate bootstrap diodes. Each high-side channel (VB1–3) requires an external fast-recovery diode (e.g., 1N4148 or equivalent) and a ceramic bootstrap capacitor (typically 0.1–0.22 µF, X7R) connected between VB and VS to sustain gate drive during high-side conduction.