PCLT-2AT4

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Dual current limited overvoltage protected digital termination
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Quantity	$ per Unit	Savings
1 - 9	$3.11	0%
10 - 24	$2.80	10%
25 - 99	$2.65	15%
100 - 249	$2.29	26%
250 - 499	$2.18	30%
500	$1.96	37%
500 +	Contact Sales

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Parameter

Parameter Name	Parameter Value
Input Voltage Min Volt	-30.0
Input Voltage Max Volt	32.0
ECCN US	EAR99
ECCN EU	NEC
Packing Type	Tube
ROHS Compliance Grade	Ecopack2
Grade	Industrial
Package Name	TSSOP-14

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 R_REFallows 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 R_THexposed 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).

Key features

Key features
2 channel topology: low side input with common ground Wide range input DC voltage: V_I= - 0.3 to 30 V with R_I= 0 Ω V_I= - 30 to 35 V with R_I= 750 Ω Current limiter: 3 to 7.5 mA programmable reference I_LIM= 6.1 mA to 8.8 mA with R_REF= 10 kΩ I_LIM= 2.8 mA to 4.3 mA with R_REF= 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 (V_MOD> 2.9 V) LED drive for sensor status: 4.4 mA typical with R_REF= 10 kΩ Input protection (R_I= 750 Ω C_IN= 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 V_RMS 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 fo

PCLT-2AT4-TR

PCLT-2AT4

Active

Dual current limited overvoltage protected digital termination Learn More about PCLT-2AT4

Dual current limited overvoltage protected digital termination
Learn More about PCLT-2AT4