AP436

Features:

- VOUT slew-rate minimum 100V/uS @ CL=3000pF
- IOUT(sink & source)=1.2 / 0.9 A
- Safety considered.
- Reduce power system thermal & increase system efficiency.
- Pb-free packages: SOT89-5L, SOP-8L


Specifications

Symbol	Parameter	Rating	Unit
VCC	Supply Voltage	14	V
VR	Reference input voltage	-0.3V2.5	V
VDC	Duty cycle input voltage	-0.3VVCC-2.1	V
VOUT	Output voltage to Ground	-0.7	V
PD	Power dissipation	1	W
TST	Storage temperature range	-65 to 150	oC
TOP	Operating temperature range	-40 to +125	oC
VOP	Operating voltage range	7.2 to 14	V

Description

The AP436 is a high-speed controller designed to drive N-channel power MOSFET used as synchronous rectifiers in high current, high frequency fly-back converters. AP436 does not require any ties to the primary side and derives its operating power directly from the secondary. The circuit functions are structured by anticipating transformer output transitions then turns the power MOSFET on or off before the transitions of the transformer to minimize body drain diode conduction and reduce associated losses.