Half-bridge driver with integrated oscillator and 600 V bootstrap
The Infineon IR2153PBF is a self-oscillating half-bridge gate driver designed for N-channel MOSFETs in a synchronous half-bridge configuration. The bootstrap supply handles up to 600 V on the high side, making it suitable for offline AC-DC converters, electronic ballasts, and half-bridge inverters up to that rail voltage. The 80 ns typical rise time and 45 ns fall time keep switching losses manageable at common 50-100 kHz operating frequencies.
NRND — plan the last-time-buy window
This means Infineon has flagged the part for eventual discontinuation — new designs should not use it, and existing production runs need to secure final inventory or qualify a replacement before the last-time-buy closes. For sustainment programs already using the IR2153PBF, the immediate action is to estimate remaining lifetime demand and place a last-time-buy order through independent distribution.
Switching speed and dead-time trade-offs
The 80 ns rise and 45 ns fall times are typical at the rated supply and load — actual edge rates depend on the external MOSFET gate charge and the RC timing components. In designs switching above 100 kHz, the internal dead-time (typically 1.2 µs) may limit the maximum duty cycle or force a lower frequency to avoid shoot-through. The RC input circuit lets the designer set the oscillator frequency with one resistor and one capacitor. The internal dead-time is fixed, so the frequency selection must account for the dead-time as a fraction of the period — at 100 kHz the dead-time consumes about 12 % of the cycle, which may be acceptable for resonant loads but tight for hard-switched inductive loads.
Package and footprint — 8-DIP through-hole
The IR2153PBF is supplied in an 8-DIP (0.300-inch, 7.62 mm) through-hole package, designated 8-PDIP by the supplier. The through-hole format simplifies prototyping and hand-assembly but occupies more board area than a surface-mount alternative. The tube shipping medium is standard for DIP packages.