Schematic

VCC
OUTx
VCC
OUTx
VCC
OUTx
GND
2
VCC
3
CTRL
1
LED1
4
LED2
6
ISET
5
LED Driver
RSET
VCC
0.1uF
LED1
LED2
CTRL
VCC
LEDx
VCC
LEDx
**Module constructed from combination of single and dual sensor circuits
*Number of LED drivers on each array depends on the number of sensors populated
LED driver*
Sensor circuit with two emitters in series**
Sensor circuit with single emitter per driver channel**
47k
47k
47k
CTRL ODD
10k
VCC
OUT1
OUT3
OUT5
OUT2
OUT4
VCC
CTRL EVEN
External connections
CTRL ODD
1k
CTRL EVEN
1
2
.
3
.
.
1
2
4
3
5
6
.
.
.
QTR/QTRX/QTRXL Reflectance Sensor Arrays
©2018 Pololu Corporation
www.pololu.com
R
Schematic diagram
QTR/QTRX/QTRXL-HD-nA
Page 5 of 6
(for n ≥ 5)
PIC801
PIC802
COC8
PIJP101
PIJP102
PIJP103
PIJP104
PIJP105
PIJP106
PIJP107
PIJP108
PIJP109
COJP1
PIJP201
PIJP202
PIJP203
PIJP204
PIJP205
PIJP206
COJP2
PIR201
PIR202
COR2
PIR401
PIR402
COR4
PIR601
PIR602
COR6
PIR901
PIR902
COR9
PIR1101 PIR1102
COR11
PIR1201
PIR1202
COR12
PIU301
PIU302
PIU303
PIU304
COU3
PIU401
PIU402
PIU403
PIU404
COU4
PIU501
PIU502
PIU503
PIU504
COU5
PIU801
PIU802
PIU803
PIU804 PIU805
PIU806
COU8