Linear Technology 1635A Administrator Guide

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
DUAL PKG
*
*
NOTE FOR THIS PAGE:
*
*
TOP LAYER CIRCUITS FOR U1 AND U2 ARE ELECTRICALLY
ISOLATED FROM EACH OTHER. THEY DO NOT SHARE GND,
VIN, VAUX, OR VOUT. JUMPERS CAN BE USED TO
PARALLEL THE TWO CIRCUITS AS NECESSARY.
*CLARIFICATION: SHOWN HERE AS CONNECTED FOR TOP
LAYER CIRCUIT, BUT STUFFED ON BOTTOM LAYER.
IF THE CTL PIN OF THE LTC4412 AND/OR LTC4414 IS NOT
USED, IT IS RECOMENDED THAT CTL BE CONNECTED TO
GND IN THE FINAL DESIGN.
ISOLATED
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
STAT1
S1A
VOUT2
GATE1
VCC2
S2A
VCC1
S1B
GATE2
S2B
VOUT1
VIN2
CTL2
VAUX2
CTL1
STAT2
VOUT2
S2B
CTL2
GATE2
VAUX2
VOUT1
S2A
S1A
GATE1
STAT2
S1B
VIN2
VIN1
VAUX1
STAT1
CTL1
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
1 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
1 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
1 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
JOSH Y.
2ND PROTOTYPE
2 11-9-10
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
JOSH Y.
2ND PROTOTYPE
2 11-9-10
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
JOSH Y.
2ND PROTOTYPE
2 11-9-10
E11 VOUT2 E11 VOUT2
E6
GND2
E6
GND2
E13
CTL1
E13
CTL1
R3
100K
R3
100K
R4 560K
(OPT)
R4 560K
(OPT)
J7
VIN2
5V - 36V @ 8A J7
VIN2
5V - 36V @ 8A
COUT2
0.1uF
50V
0805
COUT2
0.1uF
50V
0805
E8
GND2
E8
GND2
J5
VAUX2
5V - 36V @ 8A J5
VAUX2
5V - 36V @ 8A
E2
GND1 E2 GND1
R1
680K
R1
680K
COUT1
0.1uF
50V
0805
COUT1
0.1uF
50V
0805
Q2 Si7463DPQ2 Si7463DP
1
2
5
3
4
6
7
8
J11
VOUT2
5V - 36V @ 8A
J11
VOUT2
5V - 36V @ 8A
J8
GND2
J8
GND2
E9
VOUT1
E9
VOUT1
E15
VCC1
E15
VCC1
J6
GND2
J6
GND2
E7
VIN2
E7
VIN2
E14
STAT1
E14
STAT1
JMP3JMP3
E4
GND1
E4
GND1
R5
0
R5
0
E12 GND2 E12 GND2
R6
0
R6
0
E1
VAUX1
E1
VAUX1
JMP2JMP2
J3
VIN1
2.5V - 18V @ 2A J3
VIN1
2.5V - 18V @ 2A
Q3 Si7463DPQ3 Si7463DP
1
2
5
3
4
6
7
8
E16 STAT2 E16 STAT2
CIN1
0.1uF
50V
0805
CIN1
0.1uF
50V
0805
CIN2
0.1uF
50V
0805
CIN2
0.1uF
50V
0805
U2 LTC4414EMS8U2 LTC4414EMS8
VIN
7
CTL
2STAT 1
SENSE 6
GND
3
NC 5 NC
4
GATE 8
JMP1JMP1
E18
CTL2 E18 CTL2
U1 LTC4412HVIS6U1 LTC4412HVIS6
VIN
1
CTL
3STAT 4
SENSE 6
GND
2GATE 5
Q1A
SiA921EDJ
Q1A
SiA921EDJ
6
2
1
7
E5
VAUX2
E5
VAUX2
J2
GND1
J2
GND1
JMP4JMP4 J12
GND2
J12
GND2
J1
VAUX1
3V - 18V @ 2A J1
VAUX1
3V - 18V @ 2A
E17
VCC2
E17
VCC2
E10
GND1
E10
GND1
E3
VIN1
E3
VIN1
Q1B
SiA921EDJ
Q1B
SiA921EDJ
43
5
8
J10 GND1 J10 GND1
R2 560K
(OPT)
R2 560K
(OPT)
J9
VOUT1
2.5V - 18V @ 2A
J9
VOUT1
2.5V - 18V @ 2A
J4
GND1
J4
GND1

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
OPTIONAL CIRCUIT
DUAL PKG
OPTIONAL CIRCUIT
ISOLATED
DUAL PKG
S1A
VAUX1
GATE2
S2A
CTL1
VOUT2
STJ1
GTJ1
CTL2
VIN2
GATE1
S1B
STAT1
VIN1
STAT2
VAUX2
VOUT1
S2B
GTJ2
S1A
STJ1
S2B
GATE2
STAT2
STAT1
VOUT2
GATE1
VAUX1
GTJ1
VOUT1VIN1
S1B
CTL2
VAUX2
CTL1
STJ2
VIN2
S2A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
2 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
2 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
2 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
Q7
Si7463DP (OPT)
Q7
Si7463DP (OPT)
1
2
5
3
4
6
7
8
Q13B
OPT (SiA921EDJ)
Q13B
OPT (SiA921EDJ)
4 3
5
8
U4 LTC4412HVIS6 (OPT)U4 LTC4412HVIS6 (OPT)
VIN
1
CTL
3STAT 4
SENSE 6
GND
2GATE 5
Q12B
OPT (SiA921EDJ)
Q12B
OPT (SiA921EDJ)
43
5
8
Q4
Si7463DP (OPT)
Q4
Si7463DP (OPT)
1
2
5
3
4
6
7
8
Q13A
OPT (SiA921EDJ)
Q13A
OPT (SiA921EDJ)
6
2
17
Q8
Si7463DP (OPT)
Q8
Si7463DP (OPT)
1
25
3
4
6
7
8
Q5
Si7463DP (OPT)
Q5
Si7463DP (OPT)
1
25
3
4
6
7
8
Q12A
OPT (SiA921EDJ)
Q12A
OPT (SiA921EDJ)
6
2
1
7
U3 LTC4414EMS8 (OPT)U3 LTC4414EMS8 (OPT)
VIN
7
CTL
2STAT 1
SENSE 6
GND
3
NC 5 NC
4
GATE 8

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
DUAL PKG
ISOLATED
DUAL PKG DUAL PKG
OPTIONAL CIRCUIT
DUAL PKG
OPTIONAL CIRCUIT
NOTE FOR ALL CIRCUITS:
THE DEMO BOARD AS SHIPPED SHOWS THE MOST COMMON FUNCTIONS FOR TWO
ELECTRICALLY ISOLATED CIRCUITS. THIS DEMO BOARD WAS DESIGNED TO SHOW CASE THE
MAXIMUM NUMBER OF EVALUATION OPTIONS THAT CORRESPOND TO THE CIRCUITS IN THE
DATA SHEETS BOTH ICs. HOWEVER, THERE ARE SOME IMPORTANT RULES TO ALWAYS
FOLOW:
1. NEVER INSTALL U1 (TOP LAYER) AND U3 (BOTTOM LAYER) AT THE SAME TIME. INSTALL ONE
OR THE OTHER, BUT NOT BOTH.
2. NEVER INSTALL U2 (TOP LAYER) AND U4 (BOTTOM LAYER) AT THE SAME TIME. SAME AS 1.
3. JMP1-4 ARE MEANT FOR SIMPLE DIODE-OR OPERATION. THEY MUST BE REMOVED FOR
PROPER BACK-TO-BACK ISOLATION.
THERE ARE MORE GUIDELINES SPECIFICALLY FOR CERTAIN CIRCUITS. PLEASE SEE THE QUICK
START GUIDE FOR MORE APPLICATIONS AND INFORMATION.
DUAL PKG
STJ1
GTJ1
VIN1
S1B
S2B
S2A
VAUX1
STJ1
STJ2
GTJ2
STAT2 STJ2
GATE2 GTJ2
GTJ1
S2B
VOUT1
GATE2
GATE1
S1B
VIN1
S1A
VOUT2
S1A
S2A
S2A
S2B
VOUT1
GATE1
VOUT2
VAUX1
VAUX2
VIN2
STAT1
STAT1
VOUT1
S1B
STAT2
GTJ2
STJ2
STJ1
GTJ1
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
3 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
3 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035
Phone: [phone]
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
2
Monday, December 17, 2012
3 3
DUAL LOW LOSS 36V POWERPATH CONTROLLERS
AK
JOSH Y.
N/A
LTC4412HVIS6 & LTC4414EMS8
DEMO CIRCUIT 1635A
Q14
Si7463DP
Q14
Si7463DP
1
25
3
4
6
7
8
Q19B
Si7905DN
Q19B
Si7905DN
3 5
4
6
Q18A
Si7905DN
Q18A
Si7905DN
7
2
1
8
Q6A
SiA921EDJ
Q6A
SiA921EDJ
6
2
17
JMP6 0JMP6 0
JMP7 0 JMP7 0
Q16B
Si7905DN
Q16B
Si7905DN
35
4
6
JMP8 0 JMP8 0
Q17A
Si7905DN
Q17A
Si7905DN
7
2
18
Q19A
Si7905DN
Q19A
Si7905DN
7
2
18
Q6B
SiA921EDJ
Q6B
SiA921EDJ
4 3
5
8
Q15
Si7463DP
Q15
Si7463DP
1
25
3
4
6
7
8
JMP5 0 JMP5 0
Q16A
Si7905DN
Q16A
Si7905DN
7
2
1
8
Q18B
Si7905DN
Q18B
Si7905DN
35
4
6
Q17B
Si7905DN
Q17B
Si7905DN
3 5
4
6