5 4 3 2 1 REVISION HISTORY ECO REV __ 1 DESCRIPTION APPROVED PRODUCTION YI S. DATE 11-1-12 INTVCC_0 E1 VIN_PWR VIN J2 D VDD25_0 C6 100nF GND R5 1 2 C1 22uF 1210 C2 22uF 1210 D C7 1uF 0.005 D1 C8 1uF VOUT VOUT PHASE 16V SVP VDD33_0 VDD33_0 + C5 330uF 16V 2 C4 + 330uF 1 VIN 7V-14V 2 4 R1 3 C3 4.7uF VIN J1 J3 L1 0.3uH VOUT ADJ, MAX 60A 9 E2 10 SDA 8 SYNC 11 ALERTB 26 ITH 5 28 C23 1000pF 40 C24 10nF 22 25 BG0 7 8 C11 100uF 1210 C12 100uF 1210 C13 100uF 1210 C30 100uF 1210 + C15 OPT 4V + + C16 470uF 4V + C17 470uF 4V + C18 470uF 4V + C19 470uF 4V + C20 470uF 4V + C73 OPT 4V C74 470uF 4V R9 OPT C22 0.1uF R11 0 J4 R12 0 6 ISNS0+ E3 7 ISNS0ITH0 VOUT+ 1 VSENSE0+ TSNS1 VSENSE+ 2 VSENSE0- VSENSE- E4 TSNS0 VOUT- RUN1 17 27 VTRIM1_CFG Q4 PGND GPIO0 1 2 FDMS3620S GND VTRIM0_CFG VOUT1_CFG VOUT0_CFG VSENSE1 FREQ_CFG_0 L2 0.3uH R18 2.61K R19 2.61K C32 100uF 1210 C33 100uF 1210 C34 100uF 1210 C35 100uF 1210 C71 100uF 1210 E5 VDD33_0 0.1uF 13 12 34 41 21 20 19 C36 1uF C31 100uF 1210 VDD33_0 C37 18 C 9 4 ISNS1FREQ_CFG R20 16.2K 3 3 ISNS1+ SC VDD25_0 C29 100nF 32 BG1 ASEL 8 SC C28 22uF 1210 29 7 16 R14 0 31 SW1 PHASE 24 R17 10K WP C27 22uF 1210 30 TG1 4 RUN0 BOOST1 23 VDD33_0 C10 100uF 1210 36 ITH1 RUN R16 OPT 5 1 VIN U1 LTC3880EUJ C9 100uF 1210 GND 39 SW0 6 15 14 R15 0 C14 1uF VIN_PWR C26 10nF Q3 WP C R8 2.61K C21 100nF R10 0 37 BOOST0 SYNC ALERT R7 2.61K 38 TG0 5 Q2 R13 4.53K SDA FDMS3620S GPIO1 C25 47pF SCL INTVCC 9 SCL Q1 6 2 D2 CMDSH-3 R6 10K VDD33 R4 10K 33 R3 10k VDD25 R2 10K 35 GND R21 17.4K VDD33_3 R22 0 VOUT_CFG_0 SGND AND PGND CONNECTED AT A SINGLE NODE NEAR U2 VOUT_TRIM_0 E7 R23 OPT INTVCC_0 INTVCC_0 GPIO1B R24 10K E8 VDD33_3 VDD33_3 GPIO0B VIN_PWR E10 VIN INTVCC_3 INTVCC_3 INTVCC_3 VDD25_3 VDD33_3 R25 100 VDD25_0 B R26 100 B FREQ_CFG_0 R28 OPT R29 OPT C41 C39 1uF C38 1uF R27 2 C40 4.7uF 1uF E12 D3 CMDSH-3 GPIO0B GPIOB 10 R42 OPT PGOOD R43 0 SYNC R46 4.99K R50 16.2K R53 OPT EXTVCC_DRV INTVCC_0 SC 13 FREQ_CFG_3 VOUT_CFG_3 14 15 17 12 R54 OPT INTVCC_3 27 R55 20.5K 16 SW BG ISENSE- R38 0 24 C47 100nF L3 2.6uH 22 9 26 3 R44 2.61K R45 2.61K 4 C53 1uF C48 100uF 1210 C49 100uF 1210 C50 100uF 1210 C51 100uF 1210 C52 100uF 1210 C72 100uF 1210 ASEL FREQ_CFG VSENSE+ VOUT_CFG VSENSE- VTRIM_CFG TSNS 30 R51 0 31 R52 0 32 NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE 0603. 2. ALL CAPACITORS ARE 0603. VSENSE+ C54 VSENSE- 0.1uF TSNS A DNC DNC ITH 29 C56 100pF R56 0 C55 ITH 0.1uF Q6 C57 OPT R59 OPT PLACE Q10 CLOSE TO L1 CUSTOMER NOTICE APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY HZ YI S. 4 3 2 N/A SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC THREE-PHASE DC/DC CONVERTER WITH INPUT CURRENT SENSE AND DIGITAL POWER MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 SYNC 23 SYNC ISENSE+ SC E14 Q5 FDMS3620S PGOOD SHARE_CLK SC 1 VIN_SNS 2 IIN_SNS 1 3 2 4 BOOST RUN 33 EXTVCC_DRV TG WP R49 0 VOUT_TRIM_3 A IIN_SNS VIN_SNS PGND VDD25_3 5 20 R48 OPT U2 LTC3883EUH GPIO 25 VOUT_TRIM_3 R47 OPT 11 ALERT E13 C43 0.01uF SYNC PHASE VOUT_CFG_3 R39 0 RUN R40 4.99K SDA 28 8 19 VDD33_3 R94 0 9 VIN C46 0.01uF C45 22uF 1210 7 R37 OPT 8 SCL VIN_PWR C44 22uF 1210 6 SDA ALERTB R35 0 GPIO0B FREQ_CFG_3 R41 OPT 7 C42 0.1uF 5 R34 OPT R95 OPT VDD25_3 R36 OPT 6 SCL INTVCC R33 OPT GND R32 OPT VDD33 VDD33_3 VOUT_TRIM_0 VDD25 18 R31 OPT 21 VOUT_CFG_0 R30 OPT DATE: IC NO. REV. LTC3880EUJ + LTC3883EUH DEMO CIRCUIT 2052A Monday, June 24, 2013 1 1 SHEET 1 OF 3 5 4 3 2 1 ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN R60 0 GPIO0B ALERTB SDA E18 Q7 SCL E19 E20 R61 OPT SYNC D Q8 TP0101K 3V3 VDD33_0 3 TP0101K 3V3 2 VDD33_3 3 2 D R62 0 1 R63 10K SCL R67 R66 OPT R65 0 R64 10K 0 R68 15.8K 3V3 TO DC1613A FAULT2 FAULT3 FAULT1 SYNC_C J6 DEMO HEADER (M) C59 4 A1 WP A2 SCL VSS SDA R71 10 ON 5 R72 200 2 1 ALERTB OFF C58 10nF TP0101K Q9 GPIO0B GREEN D4 OPT R75 OPT 1 PGOOD Q10 2N7002A R74 127 2 R73 C ALERT RED D5 R77 4.99K VIN VIN 8AUXVCC JP1 7 EXTVCC_DRV 6 EESCL 5 R78 100K LED VIN JP2 U4 EESDA ON B 2 5 OFF 6 1 24LC025-I/ST SHDN GND 7 GND 8 VIN NC GND SENSE/ADJ OUTPUT 3 2 C60 4.7uF 1 LT1129CS8-5 C61 1uF U5 ON OFF 4 R79 100K 3 3 VCC +3.3V +3.3V SW RUN J8 DEMO HEADER (F) 3 2 R76 4.99K A0 R70 10K 100nF U3 1 VDD33_0 2 5 6 1 C SHARE_CLK R69 15.8K 3 3V3 +3.3V VIN_SNS GND VIN_EN SCL ALERTB SDA CONTROL0 SPARE1 SPARE2 WDI/RESETB CONTROL1 SPARE3 SHARE_CLK FAULT4 FAULT2 FAULT3 FAULT1 SPARE4 GND 4 1 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 6 3 J7 AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN_0 OUTEN_1 GND AUXSCL AUXSDA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 +3.3V VIN_SNS GND VIN_EN SCL ALERTB SDA CONTROL0 SPARE1 SPARE2 WDI/RESETB CONTROL1 SPARE3 SHARE_CLK FAULT4 FAULT2 FAULT3 FAULT1 SPARE4 GND 2 SDA VIN 3 ALERTB VIN 1 RUN SC 7 8 EXTVCC_DRV E21 C62 1uF VDR SHDN NC GND GND GND SENSE/ADJ VIN OUTPUT 4 B 3 +3.3V 2 1 LT1129CS8-3.3 C63 10uF E22 VIN GND JP3 3 PULSE GENERATOR R80 100K U6 ON 2 5 OFF 1 6 7 8 A C65 1uF SHDN NC GND GND GND SENSE/ADJ VIN OUTPUT 4 3 C64 4.7uF 2 1 +5V LT1129CS8-5 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 SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 APPROVALS TECHNOLOGY PCB DES. HZ APP ENG. YI S. TITLE: SCHEMATIC THREE-PHASE DC/DC CONVERTER WITH INPUT CURRENT SENSE AND DIGITAL POWER MANAGEMENT SIZE 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: IC NO. REV. LTC3880EUJ + LTC3883EUH DEMO CIRCUIT 2052A Monday, June 24, 2013 1 SHEET 2 1 OF 3 A 5 4 3 2 1 ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN E23 EXT PULSE D D VOUT VOUT +5V 3 GND V+ SET DIV 70Hz, 3% Duty Cycle 6 JP4 PULSE 5 +5V 4 R82 1M U8 LT1803IS5 C67 R84 1uF 20K 5 2 C68 1uF 3 R86 20K V+ VOUT R85 3.3 1 C69 V- 150pF +IN -IN 4 2 3 4 5 OUT 5 MOD VOUT C66 2.2uF 1 3 INT 4 Q11 RJK0305DPB EXT R88 10K R89 82.5 1 2 3 2 J10 IOUT TST 1 C R87 681K C70 1uF 0805 R90 10 1% C 2 3 4 5 R83 154K LTC6992-1 2 1 U7 J9 1 R81 2 R91 0.01 R92 5K E24 GND LOOD STEP B B CUSTOMER NOTICE APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A TECHNOLOGY HZ YI S. TITLE: SCHEMATIC THREE-PHASE DC/DC CONVERTER WITH INPUT CURRENT SENSE AND DIGITAL POWER MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 N/A SCALE = NONE 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only DATE: IC NO. REV. LTC3880EUJ + LTC3883EUH DEMO CIRCUIT 2052A Monday, June 24, 2013 2 A 1 SHEET 3 1 OF 3