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dc1781af

DEMO MANUAL DC1781A

QUICK START PROCEDURE

SYNC FUNCTION

Install a 10k R20 resistor if the board is synchronized from 
an external signal generator.

Figure 4. Cut Line for the EMI Filter Installation

EMI FILTER

Install EMI filters on the backside of the DC1781A, how-
ever, a trace cut is required for the insertion of the option 
circuit. See Figure 4 for the cut line.

Summary of Contents for LT3507A

Page 1: ...ponentsize Programmablefrequencyallowsforopti mization between efficiency and external component size Each output can be independently disabled using its own soft start pin or by using the SD terminal...

Page 2: ...pe probe technique 1 With power off connect the input power supply to VIN and GND 2 Turn on the power at the input NOTE Make sure that the input voltage does not ex ceed 36V 3 Check for the proper out...

Page 3: ...3 dc1781af DEMO MANUAL DC1781A QUICK START PROCEDURE Figure 2 DC1781A Proper Equipment Setup Figure 3 Measuring Input or Output Ripple V IN GND...

Page 4: ...resistoriftheboardissynchronizedfrom an external signal generator Figure 4 Cut Line for the EMI Filter Installation EMI FILTER Install EMI filters on the backside of the DC1781A how ever a trace cut i...

Page 5: ...CENTRAL SEMI CMDSH 4E 13 1 L1 IND 4 7 H NIC NPIM74C4R7MTRF 14 1 L2 IND 8 2 H NIC NPIM74C8R2MTRF 15 1 L3 IND 10 H NIC NPIM74C100MTRF 16 1 Q1 XTOR NPN 50V LOW SATURATION MLP322 ZETEX ZXTCM322TA 17 5 R1...

Page 6: ...0 C23 CAP ELECTROLYTIC 22 F 50V OPT 6 4 C24 C27 CAP X5R 1 F 10V 10 0603 MURATA GRM188R61A105K 7 0 C29 CAP 1206 OPT 8 0 D1 D2 D3 DIODE SCHOTTKY CMDSH 4E SOD323 OPT 9 0 FB1 BEAD 1206 OPT TAIYO YUDEN FB...

Page 7: ...rporation is believed to be accurate and reliable However no responsibility is assumed for its use Linear Technology Corporation makes no representa tion that the interconnection of its circuits as de...

Page 8: ...ING 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 CONSE...

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