Linear Technology LTC4412, LTC4414 Demo Manual

DESCRIPTION

DEMO MANUAL DC1635A

LTC4412/LTC4414:

Dual Low Loss High Voltage

PowerPath Controllers

Demonstration circuit 1635A features the LTC®4412HVIS6 and LTC4414EMS8, low loss PowerPath™ controllers. Each controller is capable of automatically switching between primary and auxiliary power sources for a single output. There are two electrically isolated circuits, one for each IC, for independent evaluation. The LTC4412 circuit is intended for lower current loads, while the LTC4414 circuit is capable of driving larger PMOS devices for higher current loads.

The input supply voltage ranges are from 2.5V to 36V for LTC4412 and 5V to 36V for LTC4414. As initially conﬁgured

The primary power paths can be controlled with external logic applied to the CTL pins. PowerPath status can be monitored using the STAT pins. Evaluation of higher current or more complex sourcing systems can be accomplished by installing additional ICs, as well as paralleling the inputs and/or outputs using the optional supplied pads. Multiple standard MOSFET package options are also available on each circuit for evaluation convenience.

Design ﬁles for this circuit board are available at

http://www.linear.com/demo/DC1635A

with the default MOSFET, the LTC4412 circuit maximum input voltage is 18V. The LTC4412 and LTC4414 circuit current limits are 2A and 8A respectively.

PERFORMANCE SUMMARY

PARAMETER CONDITIONS VALUE UNIT

Minimum LTC4412 Input Voltage V

Maximum LTC4412 Input Voltage V

LTC4412 Maximum Current MOSFET Limited 2 A

Speciﬁcations are at TA = 25°C

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.

IN1

and V

AUX1

2.5 V

18 V

Minimum LTC4414 Input Voltage V

Maximum LTC4414 Input Voltage V

LTC4414 Maximum Current MOSFET Limited 8 A

IN2

and V

AUX2

5 V

36 V

dc1635afc

1

DEMO MANUAL DC1635A

QUICK START PROCEDURE

Demonstration circuit 1635A is easy to set up to evaluate the performance of LTC4412 and LTC4414. Refer to Figure 1 for proper measurement equipment setup of both circuits and follow the procedures below.

LTC4412 Circuit

1. With all power off, connect auxiliary (V ) power supplies capable of 2A each, the system

(V

IN1

load and meters as shown in Figure 1.

2. Preset the system load to 0A and the input supplies to

0V, 0A current limit.

3. Connect the system load to the output terminals, V

and GND1.

4. Turn on the supplies, setting the current limit up to 2A.

Adjust the voltages to the desired value, up to 18V. The higher voltage of the two supplies should appear at the output.

5. Turn the load on and adjust as necessary.

6. Adjust the supplies and observe how the output switches

over to follow the higher voltage of the two sources.

) and primary

AUX1

OUT1

LTC4414 Circuit

1. With all power off, connect auxiliary (V ) power supplies capable of 8A each, the system

(V

IN2

load, and meters as shown in Figure 1.

2. Preset the system load to 0A and the input supplies to

0V, 0A current limit.

3. Connect the system load to the output terminals, V

and GND2.

4. Turn on the supplies, setting the current limit up to 8A.

Adjust the voltages to the desired value, up to 36V. The higher voltage of the two supplies should appear at the output.

5. Turn the load on and adjust as necessary.

6. Adjust the supplies and observe how the output switches

over to follow the higher voltage of the two sources.

Optional

7. For improved current handling, install additional MOS-

FETs, select from different package footprints, or shunt

, V

the two circuits at V

IN

and GND.

OUT

) and primary

AUX2

OUT2

8. For source-load back-to-back isolation, remove jumpers

JMP1 and JMP2, and/or JMP3 and JMP4, then install additional MOSFETs back-to-back as shown in Figure2.

9. For external control of the primary source power path,

remove the 0Ω jumper on the CTL1 or CTL2 pin, R2 or R5 respectively. Apply the logic-control signal on CTL1 or CTL2 as necessary.

2

dc1635afc

QUICK START PROCEDURE

–

DEMO MANUAL DC1635A

V

–

+

A

AUXILIARY

+

SUPPLY 1

–

LTC4412 CIRCUIT

LTC4414 CIRCUIT

–

V

– +

PRIMARY SUPPLY 1

A

+

SYSTEM LOAD 1

+

A

V

+ –

PRIMARY SUPPLY 2

A

SYSTEM LOAD 2

–

+

A

AUXILIARY

SUPPLY 2

+

–

V

–

DC1635 F01

Figure 1. Test Setup of DC1635A

dc1635afc

3

DEMO MANUAL DC1635A

QUICK START PROCEDURE

CIRCUIT A CIRCUIT B

JMP1

V

AUX1

0Ω

Q1A SiA921EDJ

V

AUX2

JMP3

0Ω

Q2 Si7463DP

V

AUX1

JMP2

V

IN1

U1

LTC4412HV

V

C

IN1

0.1µF R2

0Ω

IN

GND

CTL STAT

Q1B SiA921EDJ

SENSE

GATE

0Ω

R1 680k

C

OUT1

0.1µF

STAT1

V

OUT1

V

IN2

LTC4414HV

V

C

IN2

0.1µF R5

0Ω

IN

GND

CTL STAT

U2

Q3 Si7463DP

SENSE

GATE

JMP4

0Ω

R4 100k

DC1635 F02a

C

OUT2

0.1µF

STAT2

V

OUT2

Figure 2a. Standard Conﬁgurations with Automatic Switchover Between Sources

DUAL PKG DUAL PKG

V

AUX2

Q1A

SiA921EDJ

JMP5

0Ω

Q6A SiA921EDJ

Q2

Si7463DP

JMP7

0Ω

Q14 Si7463DP

V

IN1

JMP6

0Ω

U1

LTC4412HV

SENSE

V

IN

GND

CTL STAT

GATE

Q6B SiA921EDJ

CTL1

Q1B

SiA921EDJ

C

IN1

0.1µF

Figure 2b. Optional, Fully-Isolated Conﬁgurations with External Logic Control

Diodes shown are body diodes of their respective MOSFETs. Do not install extra diodes or the operation of the power paths may be compromised.

4

R1 680k

C

OUT1

0.1µF

V

OUT1

STAT1

V

IN2

CTL2

Si7463DP

C

IN2

0.1µF

Q3

JMP8

0Ω

U2

LTC4414HV

SENSE

V

IN

GND

CTL STAT

GATE

Q15 Si7463DP

R4 100k

C

OUT2

0.1µF

DC1635 F02b

V

OUT2

STAT2

dc1635afc

QUICK START PROCEDURE

DEMO MANUAL DC1635A

FROM WALL

ADAPTER

+

BAT1

GND1 AND GND2

SHARED

+

BAT2

V

CTL1

IN1

0Ω

C

IN1

0.1µF

Q8 Si7463DP

JMP5

0Ω

U1

LTC4412HV

SENSE

V

IN

GND

CTL STAT

GATE

R1 680k

DC1635 F02c

C

OUT1

0.1µF

STAT1

V

OUT1

Figure 2c. Optional, High Side Switch with Logic Control and Status Output (Requires 0Ω Jumper Across Drain-Source Pins of Q7)

U3

U2

Q5 Si7463DP

SENSE

GATE

Q3 Si7463DP

SENSE

GATE

STAT

JMP1

0Ω

JMP2

0Ω

JMP4

0Ω

V

R3 560k

X2 V

OUT1

SHARED V

OUT2

R6 560k

DC1635 F02d

OUT1

C

OUT1

0.1µF

V

CC1

STAT1

AND V

C

OUT2

0.1µF

V

CC2

STAT2

OUT2

LOAD

FROM

CHARGER

CTL1

AND V

V

IN1

SHARED

CTL2

IN2

U3

U2

Q5 Si7463DP

SENSE

GATE

Q3 Si7463DP

SENSE

GATE

JMP2

0Ω

JMP4

0Ω

+

R3 560k

+

R6 560k

DC1635 F02e

BAT1

V

CC1

STAT1

BAT2

V

CC2

STAT2

V

IN1

LTC4414HV

V

IN

C

IN1

0.1µF GND

GND1

C

IN2

0.1µF

GND2

CTL STAT

LTC4414HV

V

IN

GND

CTL STAT

X1

X2 GND1 AND GND2 SHARED

V

IN2

IN1

IN2

SCHOTTKY

LTC4414HV

V

IN

GND

CTL STAT

LTC4414HV

V

IN

GND

CTL

V

AUX1

V

IN1

C

0.1µF R2

0Ω

X1

V

IN2

C

0.1µF R6

0Ω

GND2

Figure 2d. Optional, High Current Dual Battery Load Sharing with Automatic Switchover and Status Output

Figure 2e. Optional, Dual Battery Charging with Logic Select and Status Output

dc1635afc

5

DEMO MANUAL DC1635A

5

4

3

2

1

13

SCHEMATIC DIAGRAMS

2

www.linear.com

JOSH Y.

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

2ND PROTOTYPE

2 03-17-16

VOUT1

E9

VOUT1

J9

2.5V - 18V @ 2A

0805

50V

0.1uF

COUT1

GND1

VCC1

STAT1

E10

E15

J10

E14

VCC1

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.

GND2

VOUT2

E11

5V - 36V @ 8A

J11

COUT2

0.1uF

GND2

E12

J12

50V

0805

GATE2

STAT2

E16

VCC2

E17

TECHNOLOGY

SCHEMATIC

TITLE:

AK

JOSH Y.

APPROVALS

PCB DES.

APP ENG.

SHEET OF

1

DEMO CIRCUIT 1635A

LTC4412HVIS6 & LTC4414EMS8

Thursday, March 17, 2016

IC NO. REV.

DUAL LOW LOSS 36V POWERPATH CONTROLLERS

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

2

SCALE = NONE

S1B

43

SiA921EDJ

8

VIN1

E2

*

JMP2

S1B

5

U1 LTC4412HVIS6

E3

GATE1

STAT1

560K

(OPT)

R2

STAT1

GATE1

VOUT1

5

6

SENSE

VIN

1

50V

CIN1

0.1uF

J3

J4

2

0805

GATE

GND

4

STAT

CTL

3

CTL1

0

R5

CTL1

E13

E4

ISOLATED

*

JMP3

S2A

Q2 Si7463ADP

E5

253

678

1

VAUX2

*

JMP4

S2B

R3

100K

4

VAUX2

J5

S2B

1

253

Q3 Si7463ADP

4

678

VOUT2

6

SENSE

U2 LTC4414EMS8

VIN

7

VIN2

J6

E6

CIN2

J7

E7

0.1uF

560K

(OPT)

R4

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.

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.

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.

GATE2

STAT2

1

2

CTL2

R6

STAT

CTL

5

NC

4

NOTE: UNLESS OTHERWISE SPECIFIED

0

E8

CTL2

E18

8

GATE

GND

3

50V

0805

J8

3

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

4

1. ALL RESISTORS ARE IN OHMS, 0603.

ALL CAPACITORS ARE IN MICROFARADS, 0603.

5

JMP1

S1A

Q1A

SiA921EDJ

7

DUAL PKG

E1

*

S1A

R1

680K

1

2

6

J1

Q1B

VAUX1

J2

GND1

VIN1

VAUX1

3V - 18V @ 2A

GND1

D D

GND1

2.5V - 18V @ 2A

6

GND1

CTL1

GND2

VIN2

VAUX2

C C

VAUX2

5V - 36V @ 8A

GND2

B B

VIN2

5V - 36V @ 8A

GND2

CTL2

A A

dc1635afc

SCHEMATIC DIAGRAMS

5

4

3

2

1

DEMO MANUAL DC1635A

2

23

www.linear.com

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

SHEET OF

1

8

4 3

S2B

43

8

GTJ2

VOUT2

5

S2B

5

VOUT2

6

SENSE

VIN

U4 LTC4412HVIS6 (OPT)

1

VIN2

GATE2

5

GATE

GND

2

STAT2

4

STAT

CTL

3

CTL2

STJ1

678

STJ1

4

1

VAUX1

4

Q8

Si7463ADP (OPT)

S1B

Q7

Si7463ADP (OPT)

Q5

Si7463ADP (OPT)

S1A

Q4

Si7463ADP (OPT)

253

S1A

253

678

1

253

S1B

1

253

678

GTJ1

VOUT1VIN1

GTJ1

4

VOUT1

6

SENSE

VIN

U3 LTC4414EMS8 (OPT)

7

VIN1

GATE1

8

GATE

GND

3

STAT1

1

STAT

CTL

2

CTL1

7

6

1

S2A

1

6

VAUX2

STJ2

Q13B

2

OPT (SiA921EDJ)

S2A

2

Q12B

OPT (SiA921EDJ)

DUAL PKG

Q13A

OPT (SiA921EDJ)

Q12A

OPT (SiA921EDJ)

5

NC

DUAL PKG

NC

4

ISOLATED

TECHNOLOGY

SCHEMATIC

TITLE:

AK

JOSH Y.

APPROVALS

PCB DES.

APP ENG.

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

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

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

DEMO CIRCUIT 1635A

LTC4412HVIS6 & LTC4414EMS8

Thursday, March 17, 2016

IC NO. REV.

DUAL LOW LOSS 36V POWERPATH CONTROLLERS

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

2

SCALE = NONE

3

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

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

4

VAUX1

OPTIONAL CIRCUIT

D D

CTL1

VAUX2

VIN2

CTL2

5

OPTIONAL CIRCUIT

C C

B B

A A

dc1635afc

7

DEMO MANUAL DC1635A

5

4

3

2

1

33

SCHEMATIC DIAGRAMS

VOUT1

STJ1

GTJ1

www.linear.com

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

2

SHEET OF

1

GTJ1

GATE1

Q19B

Q18B

6

Si7905DN

3 5

S1B

35

Si7905DN

6

VIN1

GTJ1

4

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.

GATE1

VOUT2

STJ2

7

ISOLATED

S2A

DUAL PKG

Q17A

Q16B

DUAL PKG

8

Si7905DN

1

S2A 35

Si7905DN

6

2

4

STAT2 STJ2

Q17B

Q16A

6

Si7905DN

3 5

S2B 1

Si7905DN

7

8

4

2

GATE2 GTJ2

TECHNOLOGY

SCHEMATIC

TITLE:

AK

JOSH Y.

APPROVALS

PCB DES.

APP ENG.

GTJ2

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

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

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

S2B

DEMO CIRCUIT 1635A

LTC4412HVIS6 & LTC4414EMS8

Thursday, March 17, 2016

IC NO. REV.

DUAL LOW LOSS 36V POWERPATH CONTROLLERS

N/A

SIZE

DATE:

SIZE

DATE:

SIZE

DATE:

2

SCALE = NONE

3

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

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

4

7

8

1

7

VAUX1

VOUT1

4 3

S1B

STJ1

2

STAT1

5

JMP6 0

Q19A

Si7905DN

S1A

Q18A

Si7905DN

DUAL PKG DUAL PKG

8

Q6B

SiA921EDJ

VOUT1

DUAL PKG

6

7

OPTIONAL CIRCUIT

Q6A

D D

SiA921EDJ

1

S1A

2

STJ1

0

JMP5

STAT1

8

VOUT2

Q15

VIN2

678

253

Si7463ADP

S2B

GTJ2

4

0

1

JMP8

GATE2

A A

5

VAUX2

678

STJ2

4

0

1

253

Q14

Si7463ADP

OPTIONAL CIRCUIT

C C

JMP7

S2A

STAT2

B B

dc1635afc

DEMO MANUAL DC1635A

PARTS LIST

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

, C

1 4 C

2 1 Q1 DUAL P-CHAN., 20V/4.5A VISHAY, SiA921EDJ-T1-GE3

3 2 Q2, Q3 MOSFET P-CHAN., 40V/10A VISHAY, Si7463DP-T1-GE3

4 1 R1 RES., CHIP, 690k, 1%, 0603 VISHAY, CRCW0603690KFKEA

5 1 R3 RES., CHIP, 100k, 1%, 0603 VISHAY, CRCW0603100KFKEA

6 2 R5, R6 RES., CHIP, 0Ω, 0603 VISHAY, CRCW06030000Z0EA

7 1 U1 I.C., LTC4412HVIS6 LINEAR TECH., LTC4412HVIS6#PBF

8 1 U2 I.C., LTC4414EMS8 LINEAR TECH., LTC4414EMS8#PBF

Additional Circuit Components

1 0 Q6, Q12, Q13 OPT VISHAY, SiA921EDJ-T1-GE3

2 0 Q4, Q5, Q7, Q8, Q14, Q15 OPT VISHAY, Si7463DP-T1-GE3

3 0 Q16, Q17, Q18, Q19 OPT VISHAY, Si7905DN-T1-E3

4 4 JMP1, JMP2, JMP3, JMP4 JUMPER, 1206 TEPRO, RN6087

5 2 R2, R4 RES., CHIP, 560k, 1%, 0603 VISHAY, CRCW0603560KFKEA

6 0 JMP5, JMP6, JMP7, JMP8 RES., 0603 OPT

7 0 U3 I.C., LTC4414EMS8 OPT LINEAR TECH., LTC4414EMS8#PBF

8 0 U4 I.C., LTC4412HVIS6 OPT LINEAR TECH., LTC4412HVIS6#PBF

Hardware-For Demo Board Only

1 18 E1, E2, E3, E4, E5, E6, E7, E8, E9, E10 TEST POINT, TURRET, 0.095" MILL-MAX, 2501-2-00-80-00-00-07-0

2 12 J1, J2, J3, J4, J5, J6, J7, J8, J10, J11, J12 BANANA JACK KEYSTONE, 575-4

3 4 (STAND OFF) STAND OFF, NYLON 0.25" KEYSTONE, 8831 (SNAP ON)

OUT1

IN1

E11, E12, E13, E14, E15, E16, E17, E18 TEST POINT, TURRET, 0.095" MILL-MAX, 2501-2-00-80-00-00-07-0

OUT2

, C

IN2

CAP., X7R, 0.1µF, 50V, 10% 0805 AVX, 08055C104KAT2A

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

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9

DEMO MANUAL DC1635A

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:

This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.

If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.).

No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.

Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and

observe good laboratory practice standards. Common sense is encouraged.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Linear Technology Corporation

10

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507

●

www.linear.com

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LT 0316 REV C • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 2011