Description
Pin
Pin
(SOT
223) (PDIP
8)
Function
1
1
VCC
2
2
Control Input
4
3, 7, 8
Ground
4
No Connection
3
5
Power Switch
Drain
Description
This is the positive supply voltage input.During startup, power is supplied to this input from Pin 5. When VCC reaches VCC(on), the Startup Circuit turns off and the output is allowed to begin switching with 1.0 V hysteresis on the VCC pin.The capacitance connected to this pin programs fault timing and frequency modulat
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.