AP8800 Datasheet, PDF (2/11 Pages) Diodes Incorporated – 350mA LED Step-Down Converter

AP8800
350mA LED Step-Down Converter
Pin Assignments
(1) SOP-8L
( Top View )
CTRL 1
8 SET
RSVD 2
7 NC
AP8800
SW 3
6 NC
GND 4
5 V_IN
(2) MSOP-8L
( Top View )
CTRL 1
8 SET
RSVD 2
7 NC
AP8800
SW 3
6 NC
GND 4
5 V_IN
(3) DFN3030-10
( Top View )
CTRL ¹
RSVD ²
NC 3
SW 4
GND ⁵
AP8800
10 _SET
9 _NC
8 _NC
7 NC
6 V_IN
Pin Descriptions
Pin Name
SW
GND
SET
CTRL
V_IN
RSVD
NC
Description
Switch Pin. Connect inductor/freewheeling diode here. Minimize trace area at this pin to reduce
EMI.
GND pin
Set Nominal Output Current Pin. To configure the output current of the device.
Dimming and On/Off Control Input. Input voltage of 0.2V or lower forces the device into low
current standby mode and shut off the output. A PWM signal allows the output current to be
adjusted above or below the level set by the resistor connected to SET input pin.
The input impedance is about 200kΩ, and if the pin is left open V_CTRL = V_REF
Input Supply Pin. Must be locally bypassed.
Reserved. Normally connected to Ground
No Connection.
AP8800 Rev. 1
2 of 11
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MARCH 2009
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