EUP2561 查看數據表（PDF） - Eutech Microelectronics Inc
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EUP2561 Datasheet PDF : 9 Pages
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Pin Configurations
Package Type
DFN-8
EUP2561
Pin Configurations
(Top View)
Pin Description
PIN
Pin
OUT
1
IN
2
CTRL
3
CS
4
COMP
5
GND
6
PGND
7
LX
8
DESCRIPTION
Regulated Output Voltage.
Input Supply Voltage.
Brightness Control Input. LED brightness is controlled by the voltage applied to
CTRL. Varying the voltage from 0.24V to 1.62V adjusts the brightness from dim to
bright, respectively. Any voltage above 1.62V does not increase brightness.
Current-Sense Feedback Input. Connect a resistor from CS to GND to set the LED bias
current. The voltage at CS regulates to VCTRL / 10 or 0.162V, whichever is lower.
Compensation Input. Connect a 0.1µF capacitor (CCOMP) from COMP to GND.
CCOMP stabilizes the converter and controls soft-start. CCOMP discharges to GND
when in shutdown.
Common Ground. Connect to PGND and the exposed pad directly under the IC.
Power Ground. Connect to GND and the exposed pad directly under the IC.
Inductor Connection. This pin is high impedance during shutdown.
DS2561 Ver1.0 Dec. 2006
2
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