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CLT01-38SQ7 Datasheet

High speed digital input current limiter

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CLT01-38SQ7
High speed digital input current limiter






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Features
8 inputs - 8-bit SPI output
High side input with common ground
5 V Voltage regulator
Package: QFN 7x7 - 48L
30 V reverse polarity capable
Adjustable current limiters
LED output for visual status
Optional: 16-bit mode with parity check,
temperature and voltage alarms
Daisy chain capable
Power dissipation: 78 mW per channel
Complies with following standards:
IEC61000-4-2:
– ±8 kV contact discharge
– ±15 kV air discharge
IEC61000-4-4:
– ±4 kV
Datasheet - production data
IEC61000-4-5:
– Input: ±1 kV
– Power supply: ±2.5 kV
Application
Programmable logic controller and remote
input modules
High speed protected termination for digital
input with serialized SPI output
IEC61131-2 type 1, 2 and 3
Compliant with EN60947-5-2
Benefits
Simplified design due to
– Built-in over voltage robustness and
immune data transfer
– Compliance with sensors and PLC's
standards
Space saving in cost effective solution with
– Integrated QFN 7x7 package
– SPI output reducing opto-couplers quantity
Energy efficient solution
– Energy-less input LED visual status
powered by inputs current
– Low overall dissipation versus discrete
Description
The CLT01-38SQ7 provides an 8-line protected
digital input termination with serialized state
transfer. This device enhances the I/O module
density by cutting the dissipation (78 mW per
input) and reducing the count of opto-transistors.
Its 6.25 MHz SPI peripheral output serializes the
input state transfer to the I/O module controller.
July 2015
This is information on a product in full production.
DocID028182 Rev 1
1/18
www.st.com


STMicroelectronics Electronic Components Datasheet

CLT01-38SQ7 Datasheet

High speed digital input current limiter

No Preview Available !

Circuit block diagram
1 Circuit block diagram
CLT01-38SQ7
DVR
IN1
LD1
COMPP
REF
Figure 1. circuit block diagram
VR
VIN < VR
8 lines
8 lines
MISO, /MISO control
VDD
VDD
MISO
/MISO
Write
VDD
Current
reference
Parity
bits generator 4 lines
Shift
Capture
MOSI
Shift
16- bit
Power
reset
VDD
VDD
VDD
VDD
Power
supply
MOSI
SCK
/CS
SPM
VC
Over temperature
alarm
Under voltage
alarm
VCS
Figure 2. Basic application schematic
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DocID028182 Rev 1


Part Number CLT01-38SQ7
Description High speed digital input current limiter
Maker STMicroelectronics
Total Page 18 Pages
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