Infineon Technologies IR2153PBF

Overview

IR2153PBF from Infineon Technologies is a self-oscillating 600V half-bridge gate driver IC with integrated 15.6V zener clamp on VCC, 1.2µs typical deadtime, and shutdown functionality triggered at 1/6th VCC on the CT pin. It drives high- and low-side N-channel MOSFETs in resonant LLC and fluorescent lamp ballast circuits, supporting fixed-frequency operation up to 20.6kHz with RT/CT timing.

For engineers reviewing the IR2153PBF datasheet, IR2153PBF pinout, IR2153PBF application, or IR2153PBF equivalent, key selection criteria include its micropower startup current (≤150µA), 1V UVLO hysteresis, bootstrap diode integration (0.5V VF @ 250mA), latch immunity, and ESD protection on all pins - critical for reliable high-voltage AC-DC and lighting control designs.

Technical Context

The IR2153PBF implements a CMOS 555-style oscillator front-end driving dual gate drivers via high-voltage level-shifting circuitry. Its internal deadtime generator ensures consistent 0.75–1.65µs non-overlap between HO and LO outputs, independent of supply transients.

Startup relies on micropower VCC current (≤150µA below UVLO) and a dedicated VBS supply path; the CT pin serves dual roles - oscillator timing ramp node and shutdown input - with threshold at 2.1V (typ.) and pulldown current of 0.7mA during UV mode.

Key Specifications

Pinout & Package

IR2153PBF is housed in an 8-lead PDIP package with through-hole mounting and standard 0.3-inch width. Pin assignments are electrically identical to SOIC variants but differ mechanically in lead pitch and thermal resistance (R_thJA = 125°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar self-oscillating half-bridge driver applications.

Compared with IRS2153D and IR2155PBF, the IR2153PBF delivers optimal balance of integration (zener clamp, shutdown, micropower start), proven field reliability, and cost-effective PDIP packaging - making it ideal for volume lighting and mid-power resonant converter applications where design maturity matters.

Availability

IR2153PBF is available at Aetrix Electronics and suitable for fluorescent lamp ballasts, LLC resonant converters, induction heating modules, and AC motor inverters requiring stable component supply and long-term industrial lifecycle support.

Supply support for IR2153PBF 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 technology.

The IR2153PBF belongs to Infineon's legacy IR21xx self-oscillating gate driver product line, engineered specifically for cost-sensitive, high-reliability AC-DC and lighting applications requiring minimal external components.

FAQ

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

The absolute maximum allowable dV/dt on the VS pin is ±50 V/ns. Exceeding this rate risks false triggering of the high-side level shifter or latch-up. Layout best practices include minimizing loop area between VS, HO, and bootstrap capacitor, and using local ceramic decoupling near VB and VS pins to suppress transient spikes.

Can IR2153PBF drive IGBTs directly?

No - IR2153PBF is optimized for N-channel MOSFET gate drive with 20ns–150ns rise/fall times and 500mA peak output current. IGBTs typically require higher gate charge and slower turn-off to avoid voltage overshoot; use dedicated IGBT drivers like IRS21844 or 2ED020I12-F2 for safe operation.

How is the oscillator frequency calculated?

Oscillator frequency is determined by RT and CT values using f ≈ 1/(1.4 × RT × CT). For example, RT = 36.9kΩ and CT = 1nF yields ~20kHz. Frequency tolerance is ±3% over temperature and supply; actual frequency varies slightly with VCC and component tolerances.

Is the internal VCC zener intended as a primary regulator?

No - the 15.6V zener is a safety clamp, not a regulator. It requires external current limiting (e.g., series resistor from auxiliary winding) to limit ICC to ≤5mA. Sustained operation above 15.6V without current limiting will overheat and destroy the clamp structure.