onsemi NCP1252
The NCP1252 controller offers everything needed to build cost− effective and reliable ac−dc switching supplies dedicated to ATX power supplies.| Part No. | NCP1252 |
|---|---|
| Datasheet | NCP1252 Download |
| Manufacturer |  onsemi |
| Description | PWM Controller |
| Buy | Stock & Price |
APPLICATIONS
NCP1252 Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC−8 package saves PCB space and represents a solution of choice in cost sensitive project.FEATURES
● Peak Current Mode Control● Adjustable Switching Frequency up to 500 kHz
● Jittering Frequency 5% of the Switching Frequency
● Latched Primary Over Current Protection with 10 ms Fixed Delay
● Delay Extended to 150 ms in E Version
● Delayed Operation Upon Start−up via an Internal Fixed Timer (A, B and C versions only)
● Adjustable Soft−start Timer
● Auto−recovery Brown−Out Detection
● UC384X−like UVLO Thresholds
● Vcc Range from 9 V to 28 V with Auto−recovery UVLO
● Internal 160 ns Leading Edge Blanking
● Adjustable Internal Ramp Compensation
● +500 mA / –800 mA Source / Sink Capability
● Maximum 50% Duty Cycle: A Version
● Maximum 80% D...
