UC1525B-SP
www.ti.com. SLUS874 – JANUARY 2009 RAD-TOLERANT CLASS-V REGULATING PULSE WIDTH MODULATOR
FEATURES 1 (1) QML-V Qualified, SMD 5962-89511
Rad-Tolerant: 30 kRad (Si) TID (1)
8-V to 35-V Operation
5.1-V Buried Zener Reference Trimmed to
В±0.75%
100-Hz to 400-kHz Oscillator Range
Separate Oscillator Sync Terminal
Adjustable Deadtime Control
Internal Soft Start
Pulse-by-Pulse Shutdown
Input Undervoltage Lockout With Hysteresis
Latching PWM to Prevent Multiple Pulses
Dual Source/Sink Output Drivers
Low Cross Conduction Output Stage
Tighter Reference Specifications Radiation tolerance is a typical value based upon initial device
qualification with dose rate = 10 mrad/sec. Radiation Lot
Acceptance Testing is available -contact factory for details. DESCRIPTION
The UC1525B pulse width modulator integrated
circuit is designed to offer improved performance and
lowered external parts count when used in designing
all types of switching power supplies. The on-chip …
