Datasheet

PCB layout STP4CMP
16/22 Doc ID 15770 Rev 2
7.3 Demonstration board schematic
Figure 13. Demonstration board schematic
VC C
VC C
C1N
C1P
VOUT
LED1
LED2
LED3
LED4
VC C
10k
R3
10k
R4
10k
R5
10k
R6
10k
R1
1k
R7
1k
R8
1k
R9
1k
R10
10k
R2
VOUT
1
2
3
JP5
VC C
1
2
3
JP1
VC C
1
2
3
JP3
VC C
1
2
3
JP4
VC C
1
2
3
JP6
VC C
1
2
3
JP2
1µF
C4
1µF
C1
10µF
C2
VC C
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
VC C
CP_SEL
ISET1
ISET2
ISET3
ISET4
ON1
ON2
ON3
ON4
EN
1
2
LED4 LED3 LED2 LED1
C1N
19
C1P
18
VOUT
17
VC C
16
LED1
15
LED2
14
LED3
13
LED4
12
ISET4
9
ISET3
8
ISET2
7
ISET1
6
EN
5
ON4
4
ON3
3
ON2
2
ON1
1
GND
20
GND
10
CP_SEL
11
U1
STP4CMP
1
2
P1
Pulldown resistors R1 -R 6 to g uarant e e c or re c t
function when no jumpe r is placed.
For efficiency measurements, pull do wns should be
removed to measure correct DUT input current,
otherwise pulldown resistors current would affect
the result.
Pulldown resistors R7 -R 1 0 are set resistors for
each channel. Needed to be changed for different
output current set
up.
P6 - P10 heade r are used to load o utputs when no
LED is populated.
1
2
1
2
1
2
AM10407v1