STLC3055N_09 STMICROELECTRONICS [STMicroelectronics], STLC3055N_09 Datasheet - Page 29

• Manufacturer Part Number: STLC3055N_09
• Description: WLL and ISDN-TA subscriber line interface circuit
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STLC3055N
7
Overvoltage protection
Figure 19. Simplified configuration for indoor overvoltage protection
Figure 20. Standard overvoltage protection configuration for K20 compliance
STLC3055N
VBAT
BGND
RING
STLC3055N
TIP
VBAT
BGND
RING
TIP
RP1
RP1
RP1
RP1
LCP1521
RP1 = 30ohm:
RP2 =Fuse or PTC > 18ohm
STPR120A
STPR120A
RP2
RP2
RP1 = 30ohm:
RP2 =Fuse or PTC > 18ohm
RP2
RP2
TIP
RING
Overvoltage protection
TIP
RING
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