Infineon Technologies IR2153SPBF

Overview

IR2153SPBF 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 ballast lamp inverters, delivering stable 50% duty cycle output with tight frequency control via RT/CT timing network.

For engineers reviewing the IR2153SPBF datasheet, IR2153SPBF pinout, IR2153SPBF application, or IR2153SPBF equivalent, key selection criteria include its micropower startup current (75µA), ±1V UVLO hysteresis, 80/40ns rise/fall times, internal bootstrap diode (0.5V @ 250mA), and latch/ESD robustness across all pins - critical for high-noise industrial lighting and AC-DC power supplies.

Technical Context

The IR2153SPBF integrates a CMOS 555-style oscillator front-end with dual independent pulse generators, HV level-shifting circuitry, and matched deadtime logic to ensure non-overlapping HO/LO outputs. Its RT pin provides direct frequency programming while CT sets ramp thresholds (4.0V/8.0V) and enables shutdown when voltage drops below 2.1V.

Unlike legacy IR2151/IR2155, it features lower di/dt gate drivers for noise immunity, constant pulse widths at startup, and a dedicated micropower VBS supply path (IQBSUV = 0µA). The internal 15.6V zener clamp protects VCC but requires external current limiting per Note 1.

Key Specifications

Pinout & Package

IR2153SPBF is housed in an 8-lead SOIC package with standard pinout compatible with industry half-bridge driver layouts. Thermal resistance RthJA is 200°C/W under still-air conditions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IR2153SPBF, IRS2153D offers lower quiescent current and higher ESD robustness for next-gen lighting, while IR21531PbF trades SOIC integration for simpler thermal management in PDIP-based legacy systems - neither is pin-compatible with IR2153SPBF's internal bootstrap diode implementation.

Availability

IR2153SPBF is available at Aetrix Electronics and suitable for compact fluorescent lamp ballasts, LED driver power stages, induction heating inverters, and AC-DC adapter auxiliary supplies requiring stable component supply across extended production cycles.

Supply support for IR2153SPBF 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 ICs, with core expertise in high-voltage gate drivers and energy-efficient systems.

The IR2153SPBF belongs to Infineon's legacy high-voltage gate driver product line, designed specifically for cost-sensitive, self-oscillating half-bridge applications in lighting and auxiliary power conversion where simplicity and latch immunity are critical.

FAQ

Can IR2153SPBF drive both N-channel and P-channel MOSFETs in the high-side position?

No. IR2153SPBF is optimized for N-channel MOSFETs only in both high- and low-side positions. Its high-side driver uses bootstrap-based level shifting, which requires the high-side switch to be N-channel with source tied to VS. Driving P-channel devices would require external level-shifting circuitry not supported by the IC's architecture.

What is the maximum allowable dV/dt on the VS node, and why does it matter?

The absolute maximum dV/dt on VS is ±50 V/ns. Exceeding this rate risks false triggering of the level shifter or latch-up due to capacitive coupling into internal logic. This limit ensures reliable operation during fast-switching transients in resonant converters and prevents unintended HO/LO overlap that could cause shoot-through failure.

Is the internal 15.6V zener clamp on VCC intended as a primary voltage regulator?

No. The 15.6V zener is a protective clamp, not a regulation mechanism. It conducts only during overvoltage events. Continuous operation requires an external current-limited supply delivering 10–15.6V; exceeding 15.6V without current limiting will overheat the clamp and degrade long-term reliability per Note 1 in the datasheet.

How does the CT pin shutdown function interact with UVLO behavior?

CT shutdown is independent of UVLO: it activates when CT voltage falls below 2.1V, forcing both HO and LO low regardless of VCC status. UVLO (7.2–9.9V window) disables oscillation only when VCC drops out of range. Thus, CT shutdown enables active fault control (e.g., overvoltage trip), while UVLO provides passive supply monitoring - both can coexist in safety-critical designs.