CLP270M
CLP270M is OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE manufactured by STMicroelectronics.
DESCRIPTION
The CLP270M is designed to protect telemunication equipment. It provides both a transient overvoltage protection and an overcurrent protection. It is housed in a Power SO-10TM package. FEATURES
DUAL BIDIRECTIONAL PROTECTION DEVICE. HIGH PEAK PULSE CURRENT : Ipp = 100A (10/1000 µs SURGE) Ipp = 500A (2/10 µs SURGE) MAX. VOLTAGE AT SWITCHING-ON : 380V MIN. CURRENT AT SWITCHING-OFF : 150m A FAILURE STATUS OUTPUT PIN BENEFITS Both primary and secondary protection levels in one device. Voltage and current controlled suppression. Surface Mounting with Power SO-10TM package. Line card cost reduction thanks to the very low power rating of external ponents required : balanced resistors, ring relay, low voltage SLIC protection. Falls into short circuit if destroyed, still ensuring protection. Power SO-10TM
SCHEMATIC DIAGRAM
FS TIP S TIP L TIP L TIP L
NC RING S RING L RING L RING L
TAB is connected to GND
January 1998
- Ed: 5B
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PLIES WITH THE FOLLOWING STANDARDS: ITU K20 VDE0433 VDE0878 IEC-1000-4-5 FCC Part 68, lightning surge type A FCC Part 68, lightning surge type B BELLCORE TR-NWT-001089 First level BELLCORE TR-NWT-001089 Second level CNET l31-24 Peak Surge Voltage (V) 4000 4000 4000 level 4 level 4 1500 800 100 2500 1000 5000 4000 Voltage Waveform (µs) 10/700 10/700 1.2/50 10/700 1.2/50 10/160 10/560 9/720 2/10 10/1000 2/10 0.5/700 Current Waveform (µs) 5/310 5/310 1/20 5/310 8/20 10/160 10/560 5/320 2/10 10/1000 2/10 0.8/310 Admissible Ipp (A) 100 100 100 100 100 200 100 25 500 100 500 100 Necessary Resistor (Ω)
- BLOCK DIAGRAM
Pin 1 2 3 / 4/ 5 6 / 7/ 8 9 10 TAB
Symbol FS TIPS TIPL RINGL RINGS NC GND
Description
Failure Status TIP (SLIC side) TIP (Line side) RING (Line side) RING (SLIC side) Not connected Ground
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APPLICATION NOTE 1. INTRODUCTION This device includes a primary protection level and is suitable for main distribution frames and line cards. This protection concept is explained and, in addition, the...