NCP1055
features an active startup regulator circuit that eliminates the need for an auxiliary bias winding on the converter transformer, fault detector and a programmable timer for converter overload protection, unique gated oscillator configuration for extremely fast loop response with double pulse suppression, power switch current limiting, input undervoltage lockout with hysteresis, thermal shutdown, and auto restart fault detection. These devices are available in economical 8- pin dual- in- line and 4- pin SOT- 223 packages.
Features
- Startup Circuit Eliminates the Need for Transformer Auxiliary Bias
Winding
- Optional Auxiliary Bias Winding Override for Lowest Standby
Power Applications
- Converter Output Overload and Open Loop Protection
- Auto Restart Fault Protection
- IC Thermal Fault Protection
- Unique, Dual Edge, Gated Oscillator Configuration for Extremely
Fast Loop Response
- Oscillator Frequency Dithering with Controlled Slew Rate Driver for
Reduced EMI
- Low Power Consumption...
