4 3 VIN_SNS VIN_SNS_IN VSENSEP0 VSENSEM0 +3.3V R1 10K 2 R2 10K R3 10K R7 10K R6 10K R71 10 VSENSEP2 VSENSEM2 C59 TANT. 35V 1.0uF 14 VSENSEP5 VSENSEM5 SCL SDA 36 37 42 43 46 47 48 49 52 53 62 63 64 1 2 3 VSENSEP6 VSENSEM6 TP16 VSENSEP7 VSENSEM7 JP2 ASEL1 HI JP3 ASEL0 LO LO HI C 28 27 32 33 30 31 22 R15 100 CONTROL0 TP6 SW2 HI CONTROL0 CONTROL0 +3.3V R64 GND R4 10K 23 24 25 26 R60 100 TP8 0 WDI/RESETB 21 C17 0.01uF WDI/RESETB SW3 VDACP1 VDACM1 VDACP2 VDACM2 VDACP3 VDACM3 R59 100 19 65 VIN_SNS VIN_EN VSENSEP0 VSENSEM0 VSENSEP1 VSENSEM1 VSENSEP2 VSENSEM2 VSENSEP3 VSENSEM3 VSENSEP4 VSENSEM4 VSENSEP5 VSENSEM5 VSENSEP6 VSENSEM6 VSENSEP7 VSENSEM7 SCL SDA ASEL0 ASEL1 CONTROL0 CONTROL1 WDI/RESET FAULTB00 FAULTB01 FAULTB10 FAULTB11 REFP REFM NC VDACP0 VDACM0 VDACP1 VDACM1 VDACP2 VDACM2 VDACP3 VDACM3 VDACP4 VDACM4 VDACP5 VDACM5 VDACP6 VDACM6 VDACP7 VDACM7 VOUT_EN0 VOUT_EN1 VOUT_EN2 VOUT_EN3 VOUT_EN4 VOUT_EN5 VOUT_EN6 VOUT_EN7 SHARE_CLK ALERTB PWRGD VPWR VDD25 WP E-PAD C12 0.01uF B VDACP0 VDACM0 U1 R16 100 VDD33_OUT VDD33_IN 12 34 35 13 VDACP5 VDACM5 C9 100nF VDACP6 VDACM6 39 38 40 41 44 45 50 51 55 54 56 57 59 58 60 61 VDACP7 VDACM7 C +3.3V 4 5 6 7 8 9 10 11 VOUT_EN0 VOUT_EN1 VOUT_EN2 VOUT_EN3 VOUT_EN4 VOUT_EN5 VOUT_EN6 D1 VOUT_EN7 29 20 15 18 R8 75 ALERTB C10 16 17 A +3.3V 100nF SW1 TP1 JP5 R9 0 OFF R5 10K FAULTB10 PWRGD C8 100nF TP12 C16 0.01uF Q1 +3.3V R70 0 POWER GOOD B FAULTB01 R63 0 D2 R75 10K TP13 HI GND CONTROL1 R10 200 ALERTB FAULTB00 TP7 R11 10K ALERTB CONTROL1 CONTROL1 ON TP11 LTC2977 WRITEPROTECT JP6 SHARE_CLK SHARE_CLK TO OTHER LTC2977's (SHEET 2) FAULTB11 TP17 TP10 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; Fax: (408)434-0507 TECHNOLOGY HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO DRAWN: CHRIS P. LTC Confidential-For Customer Use Only VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL CHECKED: TITLE: LTC2977 8-CHANNEL PM BUS POWER SYSTEM MANAGER APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CUSTOMER NOTICE PCB LAYOUT NOTES: PLACE BYPASS CAPS C8 AND C10 AS CLOSE TO U1 AS POSSIBLE. PLACE C9 VERY NEAR U1 PINS 34 & 35 CONTRACT NO. CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT APPROVED: PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. ENGINEER:DAVE C. DESIGNER: SIZE DWG NO. A LTC2977IUP REV DC1360B B THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. Wednesday, August 14, 2013 DATE: 5 D VDACP4 VDACM4 LTC2977 IUP VSENSEP4 VSENSEM4 TP15 VIN_EN TP9 VSENSEP1 VSENSEM1 VSENSEP3 VSENSEM3 D 1 2N7002 5 4 3 2 SHEET 1 1 OF 4 A 5 +3.3V 4 SCL 3 2 1 PIN HEADER 20 DUAL ROW SDA 2 4 6 8 10 12 14 16 18 20 J3 1 3 5 7 9 11 13 15 17 19 +3.3V TO DC1427A VIN_SNS J3 AND J2 ARE BOARD TO BOARD CONNECTORS USED TO CASCADE MULTIPLE DC1360 DEMO BOARDS R17 OPT. 0 +3.3V R66 20K R65 OPT. 0 FAULTB00 R18 0 R67 20K TO DC1613A C J6 HEADER 12POS 2MM VERT GOLD AUXP B SDA 1 R68 20K 3 SCL 4 LGKPWR 5 ALERTB FAULTB10 6 R72 OPT. 0 GPI_1 R69 20K 7 R73 OPT. 0 OUTEN 8 R74 OPT. 0 GPI_2 9 GND 10 AUXSCL 11 AUXSDA 12 R19 0 FAULT1 R20 OPT. 0 FAULT2 R21 OPT. 0 FAULT3 R22 OPT. 0 FAULT4 R23 OPT. 0 FAULT1 R24 0 FAULT2 R25 OPT. 0 FAULT3 R26 OPT. 0 FAULT4 R27 OPT.0 FAULT1 R28 OPT. 0 FAULT2 R29 0 FAULT3 R30 OPT. 0 FAULT4 R31 OPT.0 FAULT1 R32 OPT. 0 FAULT2 R33 OPT. 0 FAULT3 R34 0 FAULT4 FAULTB01 2 GND D VIN_EN FAULTB11 BUS SIGNALS: 1 +3.3V 2 VIN_SNS 3 GND 4 VIN_EN 5 SCL 6 ALERTB 7 SDA 8 CONTROL0 9 SPARE1 10 SPARE2 11 WDI/RESETB 12 CONTROL1 13 SPARE3 14 SHARE_CLK 15 FAULT4 16 FAULT2 17 FAULT3 18 FAULT1 19 SPARE 4 20 GND J6 SIGNALS: LGKPWR SCL ALERTB SDA OUTEN GPI_1 GPI_2 C GND B SHARE_CLK J2 2 4 6 8 10 12 14 16 18 20 V+ 1 3.3V or 5V 2 GND 3 SCK/SCL 4 MISO 5 CS 6 MOSI/SDA 7 GND 8 EESDA 9 EEVCC 10 EESCL 11 EEGND 12 GND 13 GPIO_1 14 1 3 5 7 9 11 13 15 17 19 D HEADER 14POS 2MM VERT GOLD J4 CONTROL1 SOCKET 20 DUAL ROW CONTROL0 ALERTB WDI/RESETB EESDA EEVCC EESCL A 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; TECHNOLOGY Fax: (408)434-0507 HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO DRAWN: CHRIS P. LTC Confidential-For Customer Use Only VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL CHECKED: TITLE: LTC2977 8-CHANNEL PM BUS POWER SYSTEM MANAGER APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CUSTOMER NOTICE CONTRACT NO. CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT APPROVED: PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. ENGINEER:DAVE C. DESIGNER: SIZE DWG NO. A LTC2977IUP THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. Wednesday, August 14, 2013 DATE: 5 4 3 2 REV DC1360B B SHEET 1 2 OF 4 A 5 4 J5 HEADER PROVIDES ACCESS TO LINES GOING TO OMPANION POWER SUPPLY BOARD (OPTIONAL) 3 2 1 R35 0 VSENSEM0_OUT VSENSEP0 VSENSEM0 J1 CONNECTOR TO POWER SUPPLY COMPANION BOARD R43 0 VSENSEP0_OUT C41 C49 OPT. OPT. R57 VDACM0 100 R36 0 1 D 2 1 VIN_EN 3 4 VIN_SNS VIN_EN 3 4 VIN_SNS VOUT_EN6 5 6 VOUT_EN7 VOUT_EN6 5 6 VOUT_EN7 VOUT_EN4 7 8 VOUT_EN5 VOUT_EN4 7 8 VOUT_EN5 VOUT_EN2 9 10 VOUT_EN3 VOUT_EN2 9 10 VOUT_EN3 VOUT_EN0 11 12 VOUT_EN1 VOUT_EN0 11 12 VOUT_EN1 R44 0 VSENSEM1_OUT VSENSEP1 VSENSEM1 2 VSENSEP1_OUT D C42 C50 OPT. OPT. 100 R37 0 R45 0 VSENSEM2_OUT VSENSEP2 VSENSEM2 VSENSEP2_OUT C43 VSENSEP7_OUT VSENSEP6_OUT VSENSEP5_OUT 13 15 17 14 16 18 VSENSEM7_OUT VSENSEP7_OUT VSENSEM6_OUT VSENSEP6_OUT VSENSEM5_OUT VSENSEP5_OUT 13 15 17 14 16 18 C51 OPT. OPT. VSENSEM7_OUT R38 0 R46 0 VSENSEM3_OUT VSENSEP3 VSENSEM3 VSENSEM5_OUT VSENSEP3_OUT C44 19 20 VDACM7 VDACP7 19 20 VDACM7 VDACM6 21 22 VDACP6 VDACM6 21 22 VDACP6 VDACP5 23 24 VDACM5 VDACP5 23 24 VDACM5 +12V 25 26 +12V +12V 25 26 +12V VDACM4 27 28 VDACM4 27 28 R51 VDACM2 100 VSENSEM6_OUT VDACP7 R54 VDACM1 C52 OPT. OPT. R52 VDACM3 100 C VSENSEP4_OUT 29 30 31 32 33 34 VDACP4 VSENSEM4_OUT VSENSEP4_OUT 29 30 31 32 33 34 R39 0 VSENSEM4_OUT VSENSEP4 VSENSEM4 VSENSEP4_OUT C45 VDACP4 C53 OPT. OPT. VSENSEM4_OUT C R47 0 R56 VDACM4 100 VDACP3 VSENSEP3_OUT VSENSEP2_OUT VDACP2 35 37 VSENSEP1_OUT 39 36 38 40 VDACM3 VSENSEM3_OUT VSENSEM2_OUT VDACM2 VSENSEM1_OUT VDACP3 VSENSEP3_OUT VSENSEP2_OUT VDACP2 35 37 VSENSEP1_OUT 39 36 38 40 VDACM3 R40 0 VSENSEM3_OUT VSENSEM2_OUT R48 0 VSENSEM5_OUT VSENSEM5 VSENSEP5_OUT VSENSEP5 C46 C54 OPT. OPT. VDACM2 100 R41 0 VDACP1 B 41 VDACM0 43 VSENSEP0_OUT SPARE_4 45 47 PWRGD SPARE_5 42 VDACM1 VDACP1 44 VDACP0 VDACM0 46 48 49 50 51 52 53 VSENSEM0_OUT SPARE_1 41 43 VSENSEP0_OUT SPARE_4 SPARE_2 PWRGD SPARE_3 SPARE_5 54 45 47 VDACM1 44 VDACP0 48 49 50 51 52 53 J5 42 46 R49 0 VSENSEM6_OUT VSENSEM6 VSENSEP6_OUT VSENSEP6 C47 VSENSEM0_OUT C55 OPT. OPT. VDACM6 100 SPARE_2 VSENSEM7 R42 100 VSENSEM7_OUT R50 100 VSENSEP7_OUT VSENSEP7 SPARE_3 C48 .47uF 54 C56 .47uF R55 VDACM7 100 J1 CONTRACT NO. LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO DRAWN: CHRIS P. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL CHECKED: APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT APPROVED: PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. ENGINEER:DAVE C. DESIGNER: 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 TECHNOLOGY Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: LTC2977 8-CHANNEL PM BUS POWER SYSTEM MANAGER SIZE DWG NO. A LTC2977IUP THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 4 3 2 REV DC1360B Wednesday, August 14, 2013 DATE: 5 B R58 SPARE_1 CUSTOMER NOTICE A R53 VDACM5 VSENSEM1_OUT B SHEET 1 3 OF 4 A 5 4 3 2 1 DEMO BOARD IDENTITY EEPROM EEVCC D +12V D +3.3V (3.0-3.6V) +12V_TST TP19 TP18 +3.3V LINEAR REGULATOR R62 100 C11 +3.3V 6 7 8 + C58 C14 TANT. 25V 3.3uF SHDNB BYP GND GND GND IN SENSE/ADJ OUT 4 2 C15 CER. 10V MIN 10uF 2 R14 4.99K 100nF 1 C39 0.01uF 3 R13 4.99K U3 R61 0 U2 5 R12 4.99K 3 4 A0 VCC A1 WP A2 SCL VSS SDA 8 7 6 EESCL 5 EESDA 24LC025 1 OFF LT1763CS8-3.3 ON 1uF WRITE-PROTECT JP4 C C GROUND TEST POINTS TP2 TP3 TP4 TP5 B B 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A APPROVALS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; TECHNOLOGY Fax: (408)434-0507 HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO DRAWN: CHRIS P. LTC Confidential-For Customer Use Only VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL CHECKED: TITLE: LTC2977 8-CHANNEL PM BUS POWER SYSTEM MANAGER APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CUSTOMER NOTICE A CONTRACT NO. CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT APPROVED: PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. ENGINEER:DAVE C. DESIGNER: SIZE DWG NO. A LTC2977IUP THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. Wednesday, August 14, 2013 DATE: 5 4 3 2 REV DC1360B B SHEET 1 4 OF 4 A