Product overview
Description
The CLT3-4 is a quadruple input digital termination device designed for 24 V dc automation applications. It provides the front-end circuitry of a digital input module (I/O) in industrial automation, and drives an isolating opto-coupler.
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All features
- Operating ambient temperature: - 25 to 85° C
- 4 channel topology
- Current limiter:
IGEN = 3 mA Input current limiter activation voltage < 5 V Temperature compensated operation - Wide range input dc Voltage:
VI= - 0.3 to 30 V with RI = 0 VI = - 30 to 30 V with RI = 1.8 kΩ Low side configuration with common ground - Input protection (RI = 1.2 kΩ):
IEC 61000-4-2 electrostatic discharge ESD, Class 3 In contact, ± 6 kV; in air, ± 8 kV Level B: temporary disruption; no change of opto-coupler state IEC 61000-4-5 voltage surge, Class 3 ± 1000 V with 42 Ω serial resistor in differential mode Level B: temporary disruption IEC 61000-4-4 transient burst immunity ± 4 kV peak voltage; 5 kHz repetitive rate Level A: fully functional - Opto-coupler drive:
No coupler activation below 1.5 mA input current
Circuit Diagram
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - CLT3-4B
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All resources
| Resource title | Version | Latest update |
|---|
CAD Symbol & Footprint models (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 21 Jun 2021 | 21 Jun 2021 | |
| ZIP | 1.3 | 18 Mar 2020 | 18 Mar 2020 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| CLT3-4BT6 | NRND | TSSOP-20 | Industrial | Ecopack2 | |
| CLT3-4BT6-TR | Active | TSSOP-20 | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CLT3-4BT6 | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| CLT3-4BT6-TR | | | distributors No availability of distributors reported, please contact our sales office |
CLT3-4BT6 NRND
CLT3-4BT6-TR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors