LTC1921 UTYPICAL APPLICATIO S 5V µF C7 100 16V + 9 8 7 6 5 + + – – 1921 TA02 OUT OUT V TRIM V SENSE SENSE 3 CASE LUCENT JW050A1-E + – IN IN V ON/OFF V 1 2 µF 4 C6 0.1 100V µF C5 100 100V + µF C4 0.1 100V + – OUT OUT V V R7 51k 5% MOC207 Controller + CASE – LUCENT IN IN V FLTR100V10 V TM C3 µF 0.1 100V 1N4003 Ω R3 1k 5% R2 10 5% Q1 IRF530 C2 15nF 100V C1 470nF 25V 1 7 6 5 Ω GATE DRAIN SENSE R8 100 PWRGD 8 Ω DDV R1 5% LT4250L 0.02 4 EE C8 V UV OV 100nF 100V 3 2 48V Telecom Supply Monitor and Hot Swap – R4 1% R5 1% R6 10k 1% 549k 6.49k * = DIODES INC. B3100 Complete * DIODES INC. SMAT70A FUSE STATUS SUPPLY A STATUS SUPPLY B STATUS MOC207 MOC207 MOC207 R11 47k 1/4W 4 5 6 OUT F OUT A OUT B 3 RTN LTC1921 A B V V FUSE A FUSE B 1 8 2 7 R10 10k 1W R9 10k 1W 3A 3A 48V – RTN 48V A 48V B Hot Swap is a trademark of Linear Technology Corporation – – 1921f 10