AN2456 datasheet(9/15 Pages) STMICROELECTRONICS

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AN2456 Arkusz danych(PDF) 9 Page - STMicroelectronics

Numer części	AN2456

Szczegółowy opis	Protection of single battery voltage SLICs for new networks in US market

PDF	15 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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9 / 15 page

AN2456

SLIC protection

9/15

Figure 8.

Tip, ring and –Vbat voltages during active mode normal polarity (ANP

mode)

Figure 9.

TIP, RING and –Vbat voltages during Ringing mode

3.1

Lightning surge protection

Since the application is dedicated to US, the protection has to be Telcordia GR1089

compliant. Also because it is only meant for intrabuilding SLICs located in RT, this protection

needs only to be able to handle a 100 A (2/10 µs) current surge. Telcordia GR1089

Intrabuilding standard requires the EUT to meet First level compliance criterion for lightning

tests.

VTip (20 V/div)

VRing (20 V/div)

-Vbat (20 V/div)

VTip (20 V/div)

VRing (20 V/div)

-Vbat (20 V/div)

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