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Linear Technology DC1717A, Demo Manual

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7

dc1717afa

DEMO MANUAL DC1717A

parts list

ITEM

QTY

REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

1

0

C1, C3, C5, C8

CAP., 1206

OPT

2

0

C2, C4, C6, C9

CAP., 2220

OPT

3

1

C7

CAP., ALUM., 47µF 50V 20% SMT

SUN ELECT., 50CE47BS

4

5

C10, C11, C12, C13, C15

CAP., X5R, 1µF 50V, 10%, 0603

MURATA, GRM188R61H105KAALD

5

1

C14

CAP., X5R 10µF 10V 20% 0805

TAIYO YUDEN LMK212ABJ106MG -T

6

1

C16

CAP., NPO 10nF 50V 5% 0805

NIC, NMC0805NPO103J50TRPF

7

3

C17, C18, C19

CAP., X5R 0.1µF 50V 10% 0805

TAIYO YUDEN UMK212BJ104KG-T

8

3

C20, C21, C22

CAP., X7R 0.047µF 50V, 10%, 0805

MURATA, GRM21BR71H473KA01L

9

3

D1, D2, D3

DIODE, TVS BI-DIRECTIONAL, 26V, 600W

DIODES/ZETEX SMBJ26CA-13-F 

10

0

D7

ZENER DIODE, 5.1V SOD-123 

OPT

11

8

D8-D12, D16, D17, D18

LED, GREEN, LED-ROHM-SML-01

ROHM, SML-012P8TT86

12

3

D13, D14, D15

DIODE, SCHOTTKY, SOD323

VISHAY SEMI., BAT42WS-E3-08

13

9

E1-E4, E6, E13-E16

TURRET, 0.094"

MILL-MAX 2501-2-00-80-00-00-07-0

14

6

E7, E8, E9, E10, E11, E12

TURRET, 0.063"

MILL-MAX 2308-2-00-80-00-00-07-0 

15

3

JP1, JP2, JP3

HEADERS, SGL. ROW 3 PINS 2mm CTRS.

SAMTEC TMM-103-02-L-S 

16

3

SHUNTS ON JP1-JP3 (1&2)

SHUNT, 2mm CTRS. 

SAMTEC 2SN-BK-G 

17

6

J1, J2, J3, J4, J5, J6

JACK, BANANA

KEYSTONE 575-4

18

3

Q1, Q2, Q3

DUAL P-CHAN., 40V POWERPAK1212-8-DUAL

VISHAY Si7905DN-T1-GE3 

19

0

Q4, Q5, Q6, Q7, Q8, Q9

MOSFET P-CHAN., 40V, FDD4685, DPAK

OPT

20

1

Q10

XTOR N-CHAN., SOT23

DIODE INC., MMBTA42-7-F

21

1

Q11

XTOR N-CHAN., SOT23

DIODE INC., MMBT3904-7-F

22

1

R4

RES., CHIP 1.69M 0.125W 1% 0805

VISHAY, CRCW08051M69FKEA 

23

3

R5, R8, R12

RES., CHIP 69.8k 0.125W 1% 0805

VISHAY, CRCW080569K8FKEA 

24

3

R6, R9, R13

RES., CHIP 130k 0.125W 1% 0805

NIC, NRC10F1303TRF

25

1

R7

RES., CHIP 590k 0.125W 1% 0805

VISHAY, CRCW0805590KFKEA 

26

1

R10

RES., CHIP 1.05M 0.125W 1% 0805

VISHAY, CRCW08051M05FKEA 

27

1

R11

RES., CHIP 127k 0.1W 1% 0603

VISHAY, CRCW0603127KFKED 

28

7

R14-R16, R20-R22, R29

RES., CHIP 1k 0.1W 5% 0603

VISHAY, CRCW06031K00JNEA

29

0

R17

RES., CHIP 845k 0.1W 1% 0603

OPT

30

0

R18

RES., CHIP 115k 0.06W 1% 0603

OPT

31

1

R19

RES., CHIP 30.9k 0.1W 1% 0603

VISHAY, CRCW060330K9FKEA 

32

3

R23, R26, R28

RES., CHIP 249 0.1W 1% 0603

VISHAY, CRCW060249RFKEA 

33

5

R30, R31, R32, R33, R36

RES., CHIP 100k 0.1W 5% 0603

NIC, NRC06J104TRF

34

1

R34

RES., CHIP 68k 0.25W 5% 1206

NIC, NRC12J683TRF

35

1

R35

RES., CHIP 240Ω 0.25W 1% 1206

VISHAY, CRCW1206240RFKEA 

36

1

U1

I.C., POWERPATH CONTROLLER, QFN24UF-4×4

LINEAR TECH CORP. LTC4417CUF 

37

3

U2,U3,U5

I.C., TRIPPLE 3-INPUT NOR GATE TSSOP14

NXP/PHILIPS SEMI. 74HC27PW

38

1

U4

I.C., LOW DROPOUT REG. TSOT23-8

LINEAR TECH CORP. LT3060ETS8-5 

39

4

MH1-MH4

STANDOFF, NYLON, 0.50, 1/2"

KEYSTONE, 8833 (SNAP ON)

Summary of Contents for DC1717A

Page 1: ...G SOURCE Sourcing VS VG Clamp Voltage VOUT 11V I 10µA 5 8 6 6 7 V ΔVG SINK Sinking VS VG Clamp Voltage VOUT 11V I 10µA 4 5 5 2 6 V ΔVG OFF G1 to G3 Off VS VG Threshold V1 V2 V3 2 8V VOUT 2 6V G1 to G3 Rising Edge 0 12 0 35 0 6 V ΔVG SLEW ON G1 to G3 Pull Down Slew Rate VOUT 11V CGATE 10nF 4 9 20 V µs ΔVG SLEW OFF G1 to G3 Pull Up Slew Rate VOUT 11V CGATE 10nF 7 5 13 22 V µs IGATE LOW G1 to G3 Low ...

Page 2: ...sis is 6 and can be changed to 3 by moving the JP1 jumper to the 30mV position The controller s break before make switching method prevents cross conduction between input channels and reversecurrentfromtheoutputcapacitorintotheselected input supply Each channel s control circuit of the LTC4417 has a REV comparator which monitors the connecting input supply and output load voltage The REV comparato...

Page 3: ... VALID pins at 0 7V but otherwise leaves the LTC4417 operating autonomously The following design considerations and equations dem onstrate the interrelation of the main component values and transient parameters in the rail transitions when the output voltage exceeds 0 7V The variables CS and RS used in the design equations correspond to the following board components C20 R23 for V1 12V channel C21...

Page 4: ...e Use CL INIT and RS No Is recalculated CL lower than initial CL INIT As shown in the equation 3 the use of external slew rate control will add additional delay to the total switchover time Unfortunately the actual components cannot be chosen until the load capacitance is known This circular issue can only be resolved through an iterative process TheprocessstartsbycalculatingtheCLOAD MIN assuming ...

Page 5: ...nal to the LTC4417 Optional R33 may be added as a pull up to the auxiliary 5V power supply SHDN pulled up by 2μA internal to the LTC4417 Optional R36 may be added as a pull up to the auxiliary 5V power supply CAS used to cascade a second DC1717A Connect the CAS turret of the high priority DC1717A to the EN turret of the lower priority DC1717A Grounds must be connected in common JP1 HYS Add 30mV fi...

Page 6: ... 30W to the DC1717A output turret or banana jack VOUT Do not use an electronic load in constant current mode Turn on three power supplies No additional LEDs should light Change the jumper JP3 SHDN header position from OFF to ON Three LEDs VALID1 VALID2 and VALID3 validating the input rail voltages should light Placing the jumper JP2 EN in the ON position turns on the LTC4417 powering the load with...

Page 7: ...Q3 DUAL P CHAN 40V POWERPAK1212 8 DUAL VISHAY Si7905DN T1 GE3 19 0 Q4 Q5 Q6 Q7 Q8 Q9 MOSFET P CHAN 40V FDD4685 DPAK OPT 20 1 Q10 XTOR N CHAN SOT23 DIODE INC MMBTA42 7 F 21 1 Q11 XTOR N CHAN SOT23 DIODE INC MMBT3904 7 F 22 1 R4 RES CHIP 1 69M 0 125W 1 0805 VISHAY CRCW08051M69FKEA 23 3 R5 R8 R12 RES CHIP 69 8k 0 125W 1 0805 VISHAY CRCW080569K8FKEA 24 3 R6 R9 R13 RES CHIP 130k 0 125W 1 0805 NIC NRC10...

Page 8: ...ROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 3 DEMO CIRCUIT 1717A Thursday July 23 2015 1 2 PRIORITIZED POWERPATH CONTROLLER N A LTC4417CUF KIM T VLAD O 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...

Page 9: ...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 3 DEMO CIRCUIT 1717A Thursday July 23 2015 2 2 PRIORITIZED POWERPATH CO...

Page 10: ...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...

Page 11: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC1717A ...

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