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DC1967A Datasheet(PDF) 1 Page - Linear Technology |
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DC1967A Datasheet(HTML) 1 Page - Linear Technology |
1 / 2 page 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 UNLESS NOTED: RESISTORS: OHMS, 0402, 1%, 1/16W CAPACITORS: uF, 0402, 10%, 50V OPT FREQ EXT 1.5 MHz NTC INT 400mA 2.7 V - 11V 750 kHz DISCONNECTED CONNECTED EMBEDDED INDUCTOR 1210 R12 TO BE CONNECTED TO " BAT " NODE AT BAT TURRET (E6) -B ASSY * -A 1.40MEG 0 Ohm OPEN R10 R9 1.05MEG LTC4120 - 4.2EUD LTC4120EUD U1 OFF RUN VIN > 11V ON 2 DEMO CIRCUIT 1967A - A / B 1 2 400mA WIRELESS SYNCHRONOUS BUCK BATTERY CHARGER N/A LTC4120 - 4.2EUD / LTC4120EUD NC GEORGE B. 9 - 17 - 13 SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only CUSTOMER NOTICE 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com GEORGE B. PRODUCTION FAB 2 9 - 17- 13 - REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV VBAR VPROG INTVCC INTVCC D1 DFLS240L E9 GND C5 10µF 50V E7 nCHRG JP4 R6 0 C3 0.01µF 0603 L1 15.0uH R4 2.0k 5% C2S1 4700pF 5% 50V 0805 E6 BAT C1 10uF 16V 0805 R10 * U1 LTC4120-4.2EUD / LTC4120EUD 16 13 1 5 12 17 9 3 6 10 7 2 4 8 15 14 11 RUN PROG INTVCC GND NTC GND BAT IN DHC BATSNS/FB FREQ BOOST SW CHGSNS FAULT CHRG NC/FBG E10 5V - 40V VIN E4 PROG JP3 R9 * E2 GND E8 nFAULT R5 3.01k R2 412k R11 100k 5% D2 DFLS240L E3 NTC R1 1.40MEG C2S2 0.022µF 5% 50V 0805 E5 GND R7 10k R12 100k 5% C2 47uF 16V 1210 D3 DFLS240L C4 2.2µF 6.3V E1 Cx C2P2 1800pF 5% 50V 0603 R3 10k R8 0 JP2 C2P1 4700pF 5% 50V 0805 J1 DF3-3P-2DSA 1 2 3 BAT GND ENTC Embedded Inductor 43T Lr 47µH JP1 39V D4 DFLZ39 |
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