AP436 Datasheet, PDF (1/6 Pages) Anachip Corp – Synchronous Rectifier MOSFET Driver

Synchronous Rectifier MOSFET Driver
AP436
„ Features
- V_OUT slew-rate minimum 100V/uS @ CL=3000pF
- I_OUT(sink & source)=1.2 / 0.9 A
- Safety considered.
- Reduce power system thermal & increase
system efficiency.
- Pb-free packages: SOT89-5L, SOP-8L
„ Application
- Power Adapter.
（50~120W for LCD Monitor & NB…etc.）
„ General Descriptions
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. The circuit 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.
„ Pin Assignment
( Top View )
V_CC 1
GND 2
5 V_OUT
AP436
TAB
(GND)
V_DC ³
74 _VR
SOT89-5L
( Top View )
V_OUT ¹
V_CC 2
V_DC 3
V_R ⁴
AP436
8 GND
7 GND
6 ^GND
5 GND
SOP-8L
„ Pin Descriptions
Name
V_CC
V_R
V_DC
V_OUT
GND
Description
Operating voltage input
Reference input voltage
Duty cycle input voltage
Output voltage for driving N channel
MOSFET
Ground
„ Ordering Information
AP436 XX X
Package
S : SOP-8L
Y : SOT89-5L
Packing
Blank: Tube
A : Taping
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.0 Oct 4, 2005
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