PCLT-2A

Active
Design Win Education

Dual current limited overvoltage protected digital termination

Download datasheet Order Direct
Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

Product overview

Description

The PCLT-2A is a dual input current limiter device designed for 24 V DC automation applications. This product is compatible with the type 2 (7.5 mA) or type 3 (3 mA) characteristic of the IEC 61131-2 standard. An internal resistance RREFallows the limiting current value to be adjusted from 3 to 7.5 mA.
Each input voltage clamping block protects the module input against electromagnetic interference such as those described in the IEC 61131-2 standard, IEC 61000-4-2 (ESD), 4-4 (transient burst), 4-5 (voltage surge) and 4-6 (conducted radio frequency interference) standards. The supply input is also designed with such a protection structure.
The low tolerance of the current limitation allows a drastic reduction in the dissipation of the input compared to a resistive input. The PCLT2 is packaged in TSSOP14 - a very low RTHexposed pad package that allows the PCB cooling pad to be reduced.
The output block of each termination channel transfers the input logic state to a logic output and a light emitting diode (LED).
  • All features

    • 2 channel topology: low side input with common ground
    • Wide range input DC voltage:
      • VI= - 0.3 to 30 V with RI= 0 Ω
      • VI= - 30 to 35 V with RI= 750 Ω
    • Current limiter:
      • 3 to 7.5 mA programmable reference
      • ILIM= 6.1 mA to 8.8 mA with RREF= 10 kΩ
      • ILIM= 2.8 mA to 4.3 mA with RREF= 22 kΩ
      • Narrow limiter spread: < 17%
      • Temperature compensated operation
    • Output drive:
      • No output activation below 2 mA input
      • 1.5 mA minimum output activating current in opto-coupler mode
      • Programmable CMOS output mode option (VMOD> 2.9 V)
    • LED drive for sensor status: 4.4 mA typical with RREF= 10 kΩ
    • Input protection (RI= 750 Ω CIN= 22 nF)
    • IEC 61000-4-2 ESD, Level 4
      • In contact, ± 8 kV; in air, ± 15 kV
      • Criteria B: temporary disruption
    • IEC 61000-4-5 voltage surge, Level 3
      • ± 500 V with 42 Ω series resistor in differential mode
      • Criteria B: temporary disruption
    • IEC 61000-4-4 transient burst immunity
      • ± 4 kV peak voltage; 5 kHz repetitive rate
      • Criteria A: fully functional
    • IEC 61000-4-6 conducted RFI
      • 10 VRMS
      • Criteria A: fully functional
    • Input protection against -30 V reverse polarity
    • Ambient temperature: -25 to 85 °C
    • Benefits
      • Enable input to meet type1, 2 and 3 characteristics of IEC 61131-2 standard
      • Compatible operation with 2 and 3 wires proximity sensor according EN60947-5-2 standard
      • Flexible configuration driving either opto- coupler, or CMOS bus controller input, or 12 V AS-Interface network
      • Reduced overall dissipation
      • Enhanced functional reliability
      • Compact with high integration
      • Surface mount package for highly automated assembly
      • Insensitive to the on-state sensor impedance

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - PCLT-2A

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
PCLT-2AT4
Active
TSSOP-14 Industrial Ecopack2
PCLT-2AT4-TR
Active
TSSOP-14 Industrial Ecopack2

PCLT-2AT4

Package:

TSSOP-14

Material Declaration**:

Marketing Status

Active

Package

TSSOP-14

Grade

Industrial

RoHS Compliance Grade

Ecopack2

PCLT-2AT4-TR

Package:

TSSOP-14

Material Declaration**:

Marketing Status

Active

Package

TSSOP-14

Grade

Industrial

RoHS Compliance Grade

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
Order from Distributors
Order from ST
Marketing Status
Package
Packing Type
Temperature (°C) ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
min
max
PCLT-2AT4-TR Available at 2 distributors

Distributor availability ofPCLT-2AT4-TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 24 1 Buy from Distributor
Farnell Element14 EUROPE 112 1 Buy from Distributor

Distributor reported inventory date: 2022-01-24

Distributor Name

MOUSER

Stock

24

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

112

Min.Order

1

Distributor reported inventory date: 2022-01-24

Buy Direct
Active
TSSOP-14 Tape And Reel - - EAR99 PHILIPPINES 1.439 / 50
PCLT-2AT4 Available at 1 distributors

Distributor availability ofPCLT-2AT4

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 1 1 Buy from Distributor

Distributor reported inventory date: 2022-01-24

Distributor Name

Farnell Element14

Stock

1

Min.Order

1

Distributor reported inventory date: 2022-01-24

Active
TSSOP-14 Tube - - EAR99 PHILIPPINES 1.439 / 50

PCLT-2AT4-TR

Marketing Status

Active

Unit Price (US$)

1.439

Budgetary Price (US$)*/Qty

1.439 / 50

Distributor availability ofPCLT-2AT4-TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 24 1 Buy from Distributor
Farnell Element14 EUROPE 112 1 Buy from Distributor

Distributor reported inventory date: 2022-01-24

Distributor Name

MOUSER

Stock

24

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

112

Min.Order

1

Distributor reported inventory date: 2022-01-24

Package

TSSOP-14

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

PCLT-2AT4

Marketing Status

Active

Unit Price (US$)

1.439

Budgetary Price (US$)*/Qty

1.439 / 50

Distributor availability ofPCLT-2AT4

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 1 1 Buy from Distributor

Distributor reported inventory date: 2022-01-24

Distributor Name

Farnell Element14

Stock

1

Min.Order

1

Distributor reported inventory date: 2022-01-24

Package

TSSOP-14

Packing Type

Tube

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 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