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STP4CMPQTR 数据表(PDF) 17 Page - STMicroelectronics

部件名 STP4CMPQTR
功能描述  Low voltage 4-channel constant current LED driver with charge pump
PDF  24 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STP4CMPQTR 数据表(HTML) 17 Page - STMicroelectronics

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background image
STP4CMP
PCB layout
DocID15770 Rev 3
17/24
7.2
Evaluation board
Figure 12: Evaluation board
Figure 13: Evaluation board schematic
VCC
VCC
C1N
C1P
VOUT
LED1
LED2
LED3
LED4
VCC
10k
R3
10k
R4
10k
R5
10k
R6
10k
R1
1k
R 7
1k
R 8
1k
R9
1k
R 10
10 k
R 2
VOUT
1
2
3
JP5
VCC
1
2
3
JP1
VCC
1
2
3
JP3
VCC
1
2
3
JP4
VC C
1
2
3
JP6
VC C
1
2
3
JP2
1µF
C4
1µF
C1
10µF
C2
VCC
100n
C3
1
2
P2
1
2
P3
1
2
P4
1
2
P5
1
2
P9
1
2
P8
1
2
P10
1
2
P7
1
2
P6
VCC
CP_SEL
ISET1
ISET2
ISET3
ISET4
ON 1
ON2
ON3
ON4
EN
1
2
LED4 LED3 LED2 LED1
C1N
19
C1P
18
VOUT
17
VCC
16
LED 1
15
LED2
14
LED 3
13
LED4
12
ISET4
9
ISET3
8
ISET2
7
ISET1
6
EN
5
ON4
4
ON3
3
ON2
2
GND CP_SEL
U1
STP4CMP
1
2
P1
Pull -down resistors R1-R6 to guarantee the correct
function when no jumper is placed.
For efficiency measurements, resistors should be
removed to measure the correct DUT input current,
otherwise the pull-down resistor current affects
the result.
Pull down resistors R7-R10 are set resistors for
each channel. Needed to be changed for different
output current setup.
P6- P10 header are usedto loadoutputs when no
LED is populated.
1
2
1
2
1
2
GIPG310320151040LM



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