UC1825-SP
www.ti.com SLUS870A – JANUARY 2009 – REVISED MARCH 2012 RAD-TOLERANT CLASS V, HIGH-SPEED PWM CONTROLLER
Check for Samples: UC1825-SP FEATURES 1 (1) DESCRIPTION QML-V Qualified, SMD 5962-87681
Rad-Tolerant: 30 kRad (Si) TID (1)
Compatible With Voltage-or Current-Mode
Topologies
Practical Operation Switching Frequencies to
1 MHz
50-ns Propagation Delay-to-Output
High-Current Dual Totem Pole Outputs
(1.5 A Peak)
Wide Bandwidth Error Amplifier
Fully Latched Logic With Double-Pulse
Suppression
Pulse-by-Pulse Current Limiting
Soft Start/Maximum Duty-Cycle Control
Undervoltage Lockout With Hysteresis
Low Start-Up Current (1.1 mA) The UC1825 PWM control device is optimized for
high-frequency switched mode power supply
applications. Particular care was given to minimizing
propagation delays through the comparators and
logic circuitry while maximizing bandwidth and slew
rate of the error amplifier. This controller is designed …
