AP8802 Datasheet, PDF (2/13 Pages) Diodes Incorporated – 1A LED Step-Down Converter

AP8802
1A LED Step-Down Converter
Pin Assignments
(1) SOP-8L
( Top View )
SET 1
8 CTRL
GND 2
7 GND
AP8802
NC 3
6 SW
V_IN 4
5 SW
(2) SOP-8L-EP (Preview)
( Top View )
SET 1
iew GND 2
v _{NC 3}
Pre ^{VIN 4}
8
7
AP8802
6
5
CTRL
GND
SW
SW
(3) DFN3030-10
( Top View )
SET ¹
GND ²
NC 3
NC ⁴
V_IN ⁵
AP8802
10 _CTRL
9 _GND
8 _NC
7 _SW
6 SW
Pin Descriptions
Pin Name
SW
GND
SET
CTRL
V_IN
NC
Description
Switch Pin. Connect inductor/freewheeling diode here, minimizing track length at this pin to
reduce EMI.
GND pin
Set Nominal Output Current Pin. 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 50kΩ, and if the pin is left open V_CTRL = V_REF
Input Supply Pin. Must be locally bypassed.
No connection
AP8802 Rev. 1
2 of 13
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MARCH 2009
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