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dc1555bfa

DEMO MANUAL DC1555B

pArts list

ITEM

QUANTITY

REFERENCE

DESCRIPTION

MANUFACTURERS PART NUMBER

Required Circuit Components

1

3

CLD1, CLD2, CLD3 

Current Limiting, Diode, SOD-80

Central Semi. Corporation, CCLM2000

2

0

C1 (OPT)

Capacitor, X5R, 4.7µF, 50V, 20%, 1210

Taiyo Yuden, UMK325BJ475MM-T

3

0

C2 (OPT)

Capacitor, Alum, 47µF, 35V, 10%, OSCON-CE-6.3

Sanyo, 35CE47AX

4

0

C3 (OPT)

Capacitor, X5R, 10µF, 25V, 10%, 1210

Taiyo Yuden, TMK325BJ106KM

5

2

D1, D2 

LED, GRN 

Panasonic, LN1351CTR

6

1

D3 

LED, RED 

Panasonic, LN1251CTR

7

1

D4 

Diode, 75V/200mW, SOD-523

Diodes Inc., 1N4148WT

8

0

D5 (OPT)

Zener Diode, 15V, SOD-523

Diodes Inc., BZT52C15T #PbF

9

0

D6 (OPT)

Zener Diode, 20V, POWERDI-123

Diodes Inc., DFLT20A #PbF

10

0

D7 (OPT)

Zener Diode, 40V, POWERDI-123

Diodes Inc., DFLT40A #PbF

11

4

E1, E2, E6, E7 

Turret, Testpoint 0.094"

Mill Max 2501-2-00-80-00-00-07-0

12

4

E3, E4, E5, E8 

Turret, Testpoint 0.063"

Mill Max 2308-2-00-80-00-00-07-0

13

3

JP1, JP2, JP3 

Headers, Sgl. Row, 3 Pins, 2mm Ctrs. 

Samtec, TMM-103-02-L-S

14

1

Q1 

Dual N-Channel, 30V, SO-8 

Vishay, SI4230DY-T1-GE3

15

0

Q2 (OPT)

Dual N-Channel, Low Current, SOT-563 

Diodes Inc., 2N7002V-7

16

1

R1 (Bal to #1608A)

Resistor, Chip, 1M, 0.06W, 1%, 0603

Vishay, CRCW06031M00FKEA

17

1

R2 

Resistor, Chip, 54.9k, 0.06W, 1%, 0603

Vishay, CRCW060354K9FKEA

18

1

R3 

Resistor, Chip, 36.5k, 0.06W, 1%, 0603

Vishay, CRCW060336K5FKEA

19

1

R4 

Resistor, Chip, 510k, 0.06W, 5%, 0603

Vishay, CRCW0603510KJNEA

20

1

U1 

IC, Over/Under/RevV/RevI Protection, SC8

Linear Technology Corporation, LTC4365CTS8

21

3

XJP1, XJP2, XJP3 

Shunt, 2mm Ctrs. 

Samtec, 2SN-BK-G 

22

4

Stand-Off, Nylon, 0.25" Tall

Keystone, 8831(Snap On)

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Summary of Contents for DC1555B

Page 1: ...r two back to back connected power MOSFETs three jumpers and three LEDs to indicate the input and output voltages and the FAULT pin signal Design files for this circuit board are available at http www linear com demo SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Board Input Voltage Range 30 30 V VIN UVLO Input Supply Undervoltage Lockout VIN Rising 1 8 2 2 2 4 V IVIN Input Supply Current SHDN ...

Page 2: ... 5V all LEDs are off and input current is 1 8mA FET leakage or other board leakage paths can pull VOUT slightly nega tive but it will be clamped by the internal protection diode 7 Ramp supply back to 0V quick start procedure protection circuit automatically isolates the load from negative input voltages During normal operation a high voltage charge pump enhances the gate of external N channel powe...

Page 3: ...5b F01a POWER SUPPLY 0V TO 30V LOAD dc1555b F01b R POWER SUPPLY quick start procedure Figure 1a Reverse Voltage Measurement Figure 1b Undervoltage Overvoltage Measurement Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Page 4: ... DFLT40A PbF 11 4 E1 E2 E6 E7 Turret Testpoint 0 094 Mill Max 2501 2 00 80 00 00 07 0 12 4 E3 E4 E5 E8 Turret Testpoint 0 063 Mill Max 2308 2 00 80 00 00 07 0 13 3 JP1 JP2 JP3 Headers Sgl Row 3 Pins 2mm Ctrs Samtec TMM 103 02 L S 14 1 Q1 Dual N Channel 30V SO 8 Vishay SI4230DY T1 GE3 15 0 Q2 OPT Dual N Channel Low Current SOT 563 Diodes Inc 2N7002V 7 16 1 R1 Bal to 1608A Resistor Chip 1M 0 06W 1 0...

Page 5: ...TLE APPROVALS PCB DES APP ENG TECHNOLOGY 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...

Page 6: ...E 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 responsibi...

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