NCP1338(2010) 查看數據表（PDF） - ON Semiconductor

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NCP1338
(Rev.:2010)

PWM Current-Mode Controller for Free Running Quasi-Resonant Operation

ON Semiconductor 

VCC

VCCON

VCCMIN

VCCLATCH

CS

Setpoint

Fault

CS

VCSLimit

FAULT

TIMER

80 ms

NCP1338

Restart on 2nd cycle

Overload

Overload is removed here

When the current setpoint rises above

fault level, FAULT flag is activated.

Output pulses

are stopped.

SS

When FAULT flag

is activated, timer

is restarted.

80 ms Fault Timer

Figure 4. Overload

Normal Startup

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