Linear Technology LTC3765 Demo Manual Download | Manualshive

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dc2199aafa

DEMO MANUAL DC2199A-A

QUICK START PROCEDURE

Figure 3. Output Ripple at 48V

IN

and 30A

OUT

(50mV, 10A, 2µs/DIV, 20MHz)

Figure 4. Transient Response Waveform at 48V

IN

and 15A to 30A to 15A

OUT

(10A, 500mV, 200µs/DIV)

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Summary of Contents for LTC3765

Page 1: ... Linear Technology Corporation All other trademarks are the property of their respective owners PERFORMANCE SUMMARY ciencyexceeding96 Secondary sidecontroleliminates complex opto coupler feedback providing fast transient response with minimum output capacitance For other output requirements see the LTC3766 data sheet or contact the LTC sales Design files for this circuit board are available at htt...

Page 2: ...eeptheconverter from turning on due to the undervoltage lockout feature of the LTC3765 LTC3766 buckconverter Secondarycontroleliminatesdelays tames large signal overshoot and reduces output capacitance needed to meet transient response requirements An optional LC filter stage on the input lowers RMS input current The filter must have output impedance that is less than the converter input impedance...

Page 3: ...ct the load to make sure that the load is not set too high 8 Once the proper output voltage is again established adjust the load within the operating range and observe the output voltage regulation ripple voltage efficiency and other desired parameters Figure 1 Proper Measurement Equipment Setup Figure 2 Efficiency and Power Dissipation IOUT A 0 EFFICIENCY 98 97 95 96 94 92 93 91 90 POWER DISSIPAT...

Page 4: ...99aafa DEMO MANUAL DC2199A A QUICK START PROCEDURE Figure 3 Output Ripple at 48VIN and 30AOUT 50mV 10A 2µs DIV 20MHz Figure 4 Transient Response Waveform at 48VIN and 15A to 30A to 15AOUT 10A 500mV 200µs DIV ...

Page 5: ...5 dc2199aafa DEMO MANUAL DC2199A A QUICK START PROCEDURE Figure 5 Thermal Map Front Side at 48VIN and 30AOUT TA 25 C 200LFM Figure 6 Thermal Map Back Side at 48VIN and 30AOUT TA 25 C 200LFM ...

Page 6: ...79 CAP X7R 4 7nF 25V 10 0603 MURATA GRM188R71E472KA01 19 1 C101 CAP NPO 220pF 25V 5 0603 AVX 06033A221JAT2A 20 1 C106 CAP COG 150pF 250V 5 0603 TDK C1608C0G2E151J080AA 21 1 C112 CAP X7R 0 22µF 250V 10 1206 1210 TDK C3225X7R2E224K 22 1 C113 CAP X7R 0 033µF 25V 10 0603 AVX 06033C333KAT2A 23 1 C118 CAP NPO 1500pF 5 0603 AVX 06033A152JAT2A 24 2 D1 D34 DIODE ULTRA FAST 1A 200V SMP VISHAY ES1PD M3 84A 2...

Page 7: ...33k 1 16W 1 0603 VISHAY CRCW0603133KFKEA 58 1 R123 RES CHIP 118k 1 16W 1 0603 VISHAY CRCW0603118KFKEA 59 1 R125 RES CHIP 17 4k 1 16W 1 0603 VISHAY CRCW060317K4FKEA 60 1 R136 RES CHIP 0 005 1W 1 1225 SUSUMU KRL6432D M R005 F T5 61 1 R139 RES CHIP 26 7k 1 16W 1 0603 VISHAY CRCW060326K7FKEA 62 1 R140 RES CHIP 274 1 8W 1 0805 PANASONIC ERJ 6ENF2740V 63 1 R150 RES CHIP 14 3k 1 16W 1 0603 VISHAY CRCW060...

Page 8: ...TEPRO RN5326 21 1 R115 RES CHIP 0 1 4W 1206 VISHAY CRCW12060000Z0EA 22 0 R152 RES OPT 0805 OPT 23 0 U3 I C OPT SO16 OPT Hardware For Demo Board Only 1 4 E1 E2 E3 E4 TESTPOINT TURRET 094 MILL MAX 2501 2 00 80 00 00 07 0 2 3 E5 E6 E7 TESTPOINT TURRET 061 MILL MAX 2308 2 00 80 00 00 07 0 3 0 J1 HEADER OPT 2 7PIN 0 079CC OPT MOLEX 87331 1420 4 2 J3 J4 STUD TEST PIN PEM KFH 032 10 5 4 J3 J4 2 EACH NUT ...

Page 9: ...ESPONSIBILITY 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 F...

Page 10: ...EGN DC2199A WITH DIRECT FLUX LIMIT REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV DAVID B PRODUCTION 2 10 29 14 __ REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV DAVID B PRODUCTION 2 10 29 14 __ REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV DAVID B PRODUCTION 2 10 29 14 __ R137 0 R137 0 Q12 BSC028N06NS3 Q12 BSC028N06NS3 4 5 2 3 6 7 8 1 R52 3 0 1206 R52 3 0 1206 C5 100V 4 7uF C5 100V 4...

Page 11: ...OLOGY 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 Wednesday October 29 2014 2 2 ACTIVE CLAMP FORWARD CONVERTER LT DAVID B N A LTC3765EMSE LTC3766EGN DC2199A WITH DIRECT FLUX LIMIT SIZE DATE IC NO REV SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 050...

Page 12: ... 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 th...

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