CL325
Lowering CL325 Power Dissipation: Separate VIN Supply
VLL
Host
Controller
VIN
CIN
100nF
8
VIN
REG VDD
1 EN1
2 EN2
3 EN3
7
OUT1
6
OUT2
5
OUT3
GND
CL325
4
CL325 power dissipation may be lowered by supplying the CL325 from a voltage source (VIN) that is lower in voltage than
the LED supply (VLL).
Lowering CL325 Power Dissipation: Dropping Resistor
VLL
RDROP
Host
Controller
CIN
100nF
8
VIN
REG VDD
1 EN1
2 EN2
3 EN3
7
OUT1
6
OUT2
5
OUT3
RDROP < VLL(MIN) - 6.5V
2.3mA
where: RDROP = Dropping resistance
VLL(MIN) = minimum supply voltage
GND
CL325
4
● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
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