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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).主な特徴
- 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
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サンプル & 購入
| 製品型番 | パッケージ | 梱包タイプ | 製品ステータス | 概算価格（USS） | 数量 | ECCN (US) | Country of Origin | 販売代理店からオーダー | STからオーダー |
|---|---|---|---|---|---|---|---|---|---|
| PCLT-2AT4-TR | HTSSOP14 | Tape And Reel |
Active
|
1.2621 | 100 | EAR99 | PHILIPPINES | 在庫チェック | 購入 |
| PCLT-2AT4 | HTSSOP14 | Tube |
Active
|
1.2621 | 100 | EAR99 | PHILIPPINES | 在庫チェック | 購入 |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
ビデオ
Introduction to surges – EOS and ESD – definition, standards, effects and root cause
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| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| PCLT-2AT4 |
Active
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HTSSOP14 | インダストリアル | Ecopack2 | |
| PCLT-2AT4-TR |
Active
|
HTSSOP14 | インダストリアル | 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.
