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| RT8489 Datasheet, PDF (7/16 Pages) Richtek Technology Corporation – High Voltage 4-CH LED Driver Controller | |||
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Typical Application Circuit
L1
VIN
CIN
RT8489
2 CB
R3
12V*
1 VCC
CVCC
GBIAS
GATE 3
6 RSET
ISENSE 5
RSET
VOUT
R1
8 OVP
R2
10 VC
RVC
CVC
9 SS
CSS
Chip Enable 7 EN
12
DCTL
11
ACTL
4
GND
LED1 24
GATE1 23
22
SENSE1
LED2 21
GATE2 20
SENSE2 19
LED3 18
GATE3 17
SENSE3 16
LED4 15
GATE4 14
SENSE4 13
RT8489
D1
COUT
MSW
RSENSE
VOUT
4 x N LEDs
M1
RS1
M2
RS2
M3
RS3
M4
RS4
* : If VIN is operated above 12V, it is recommended to keep VCC at 12V for optimal application
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8489-00 November 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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