UC1525B-SP - Texas Instruments

UC1525B-SP RAD-TOLERANT CLASS-V REGULATING PULSE WIDTH MODULATOR

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 5.1-V buried zener reference is trimmed to ±0.75%, and the input common-mode range of the error amplifier includes the reference voltage, eliminating external.

Features

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 ±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 (1) Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad/sec.