5 4 3 NON - OPERATING FAULT TOLERANCE TO + / - 27V CONTINUOUS. E1 C1 22uF 1210 25V D C2 22uF 1210 25V NON - OPERATING FAULT TOLERANCE TO + / - 27V CONTINUOUS. Q2B MMDT3904 VBUS GND GND GND GND GND GND ID C4 4.7uF 1206 50V D+ TP1 DTP2 D+ DGND M2B FDMC8030 Q2A MMDT3904 M2A FDMC8030 3.6k 5% 0805 USBSNS TP7 E4 U1 USBGT TP6 1 3 5 7 9 11 13 + + + + + + + + + + + + + + 2 4 6 8 10 12 14 SDA TP15 USBGT USBSNS 10 OVGCAP R10 5.1k 5% U2 B 8 6 VCC SCLK SDA 5 1 2 3 A0 256X8 A1 A2 7 WP 24LC025I/ST 28 1 2 JP1 C11 22uF 0805 6.3V 20% 0 VOUTSNS TP13 SCL SDA DVCC CLPROG2 PROG 14 NTCBIAS -B LTC4156EUFD D VOUT 3.5V - 4.5V 4A C13 22uF 1210 25V 20% OPT C12 22uF 0805 6.3V 20% GND E14 DF3-3P-2DSA 1 BAT J3 2 GND OPT 3 NTC M3 Si5481DU C9 0.047µF 25V DVCC C8 TBD 25V OPT NTC IRQ C10 100uF 6.3V 1210 20% D1 LNJ208R8ARA INTERRUPT PENDING RED R21 TBD OPT C VFLOAT = 4.05V, 4.1V, 4.15V, 4.2V 4A R22 0 VC TP9 R13 100k 15 LTC4155EUFD BATGATE TP10 CLPROG1 18 U1 -A LEAKAGE CURRENT MUST BE < 50nA ID BATSNS 16 VC 12 6 ASSY 05-05-11 E15 R23 VOUTSNS 13 USB 3 R12 51k 5% R11 5.1k 5% SW 26 SW 27 DATE GEORGE B. L1 1.0µH XFL4020-102ME BATGATE 17 2 USER 1 C6 0.01uF 25V C7 0.1µF 25V SCL TP16 INPUT CURRENT 0 25 VOUT 22 VOUT 21 CHGSNS 20 CHGSNS 19 5 R9 R8 100k J2 DVCC TP14 24 WALLSNS WALLGT 9 8 4 DVCC 23 VBUS VBUS VBUS C5 0.01µF 25V ID TP3 DC590 INTERFACE 7 11 * APPROVED NOTES: UNLESS OTHERWISE SPECIFIED 1. RESISTORS: OHMS, 0402, 1%, 1/16W 2. CAPACITORS: uF, 0402, 10%, 50V TP11 SW OVGCAP TP8 GND C PRODUCTION FAB VBUS TP12 U1.7,9,10 : LEAKAGE CURRENT MUST BE < 400nA 5% R6 DESCRIPTION 2 * C3 22uF 0805 6.3V 20% R5 1Meg R7 1.0 5% J1 MICRO-B R4 47k 5% REV - TP4 WALLSNS TP5 WALLGT FDMC8030 M1B E3 4.35V - 5.5V ECO R2 3.6k 5% 0805 FDMC8030 M1A R3 47k 5% USB 1 R1 1Meg 5% Q1B MMDT3904 WALL 4.35V - 5.5V E2 GND 2 REVISION HISTORY Q1A MMDT3904 BAT E13 BATSNS E12 GND E11 R20 1k 5% B 0603 3 IRQ E10 GND 29 VSS 4 E5 E6 JP2 1 INT NTC E7 CLPROG1 CLPROG2 A 2 NTCBIAS E8 CUSTOMER NOTICE E9 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. R18 0 PROG R14 1.21k R15 1.21k R16 499 R17 100k THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 R19 0 NTC 3 EXT 3 APPROVALS TECHNOLOGY PCB DES. NC APP ENG. GEORGE B. TITLE: SCHEMATIC DUAL INPUT POWER MANAGER / 3.5A Li-Ion BATTERY CHARGER WITH I2C CONTROL AND USB OTG SIZE IC NO. N/A SCALE = NONE 2 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only DATE: REV. LTC4155EUFD / LTC4156EUFD DEMO CIRCUIT 1674A-A/B 05-05-11 2 SHEET 1 1 OF 1 A