iC-DI
DUAL SENSOR INTERFACE
Rev C2, Page 1/15
FEATURES
o
Dual channel switches, configurable for high-side, low-side
and push-pull operation
o
Switches are current limited
o
Push-pull operation with tristate function
o
Output current of up to 100 mA per channel
o
Parallel connection of both channels possible
o
Channel 1 can be inverted (antivalent output)
o
Wide supply voltage range of 9 to 30 V
o
Sensor parameterisation via a feedback channel (up to 30 V)
o
Switching converters and regulators for 3.3/5 V voltage
generation
o
Error detection with hysteresis with excessive temperature,
overload and low voltage
o
Driver shutdown in the event of error
o
Error messaging via two open-collector outputs
APPLICATIONS
o
Sensor interface for light barriers
and proximity switches, for
example
PACKAGES
QFN24 4 mm x 4 mm
BLOCK DIAGRAM
CVH
1 uF
..50 mA
LVH
22 uH
VH
VHL
RSET
8.2 kΩ
ISET
VBR
VCC
VCC3
VCC
NUVD
BIAS
Undervoltage
NOVL
Overtemp.
Overload
VCC3
VBO
HS1
Filter and
Control Logic
CHANN. 1
QCFG1
QP1
QN1
1 nF
IN1
INV1
LS1
LINE
QCFG2
Filter and
Control Logic
CHANN. 2
HS2
QP2
QN2
1 nF
IN2
LS2
VN
OEN
GND
CFO
=1
VBR
VN
CFI
CFP
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