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Linear Technology DC2111A-A/B, Демонстрационное руководство

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dc2111aabf

DEMO MANUAL

DC2111A-A/B

Quick start proceDure

Figure 3. 1.2V/90A Converter with N+1 MOSFET Failure Protection. Bottom MOSFET of Phase 1 

Shorted Drain to Source with Full Load on the Output and a 12V input. The Output Continues to 

Regulate with Only a Small Perturbation on the Output.

Figure 2. 1.2V/90A Converter with N+1 MOSFET Failure Protection. Top MOSFET of Phase 4 Shorted 

Drain to Source with Full Load on the Output and a 12V Input. The Output Continues to Regulate with 

Only a small Perturbation on the Output.

V

OUT

 (AC)

50mV/DIV

V

IN4

10V/DIV

HiZB4

5V/DIV

PWM4

5V/DIV

VSW1

10V/DIV

VSW2

10V/DIV

VSW3

10V/DIV

VSW4

10V/DIV

50µs/DIV

dc2111aab F02

V

OUT

 (AC)

50mV/DIV

V

IN1

10V/DIV

HiZB1

5V/DIV

PWM1

5V/DIV

VSW1

10V/DIV

VSW2

10V/DIV

VSW3

10V/DIV

VSW4

10V/DIV

50µs/DIV

dc2111aab F03

Содержание DC2111A-A/B

Страница 1: ...by a dedicated 5V bias supply for each phase If the 5V bias for a given phase is pulled down due to a DrMOS failure or other fault the 5V bias for the other phases will not be affected In case of an...

Страница 2: ...o 14V 1 2V 1 5 IOUT MAX VIN 10V to 14V 90A Nominal Switching Frequency 400kHz Efficiency See Figure 6 VOUT 1 2V IOUT 90A VIN 12V 89 3 Typical Table 2 B Converter TA 25 C No Airflow PARAMETER CONDITION...

Страница 3: ...s This could damage the converter Only apply load across the VOUT and VOUT stud connectors on the edge of the board Note 3 For loads less than 5A some low level noise may appear on the output of the A...

Страница 4: ...4 dc2111aabf DEMO MANUAL DC2111A A B Quick Start Procedure VIN SUPPLY VIN IIN A V VOUT V A IOUT VOUT dc2111aab F01 COUT3 Figure 1 Proper Measurement Equipment Setup for DC2111A A B...

Страница 5: ...Figure 2 1 2V 90A Converter with N 1 MOSFET Failure Protection Top MOSFET of Phase 4 Shorted Drain to Source with Full Load on the Output and a 12V Input The Output Continues to Regulate with Only a...

Страница 6: ...DIV dc2111aab F04 45A 90A VOUT AC 100mV DIV LOAD STEP 20A DIV 50 s DIV dc2111aab F05 60A 120A Figure 4 45A to 90A Load Step Response of the 1 2V 90A Converter with N 1 MOSFET Failure Protection Circui...

Страница 7: ...BSC010NE2LS DrMOS BIAS 5 6V BIAS POWER INCLUDED IN EFFICIENCY MEASUREMENT 75 80 85 EFFICIENCY LOAD CURRENT A 90 95 100 40 60 80 100 120 140 20 0 dc2111aab F07 EACH PHASE DrMOS FDMF5820DC BOOST R 0 L...

Страница 8: ...Procedure Figure 8 Thermal Image of the 1 2V 90A Converter with N 1 MOSFET Failure Protection Measured with Full Load and an Input Voltage of 12V TAMB 21 C Hot Spot is the DrMOS of Phases 2 with a Ris...

Страница 9: ...17 8 COUT1 COUT2 COUT9 COUT10 COUT11 COUT12 COUT19 COUT20 CAP 100 F 20 6 3V X5R 1206 MURATA GRM31CR60J107ME39L 18 12 COUT3 COUT4 COUT5 COUT6 COUT7 COUT8 COUT13 COUT14 COUT15 COUT16 COUT17 COUT18 CAP 3...

Страница 10: ...51 2 U3 U9 IC LTC3774EUHE UHE 5X6 36P 1 LINEAR TECHNOLOGY LTC3774EUHE PBF 52 2 U6 U12 IC LTC4226CUD 1 QFN16UD 3X3 LINEAR TECHNOLOGY LTC4226CUD 1 PBF Bias Supplies 1 1 C66 CAP 2 2 F 10 16V X5R 0603 MU...

Страница 11: ...KEA 3 1 R109 RES 0 002 1 1W 2512 VISHAY WSL25122L000FEA Additional Demo Board Circuit Components 1 0 C3 CAP OPT 0805 OPT 2 1 C31 CAP 1 F 10 25V X7R 0603 AVX 06033C104KAT2A 3 0 C69 C74 CAP OPT 1206 OPT...

Страница 12: ...RRET 0 095 MILL MAX 2501 2 00 80 00 00 07 0 2 1 JP1 HEADER 3 PIN 0 079 SINGLE ROW WURTH ELEKTRONIK 62000311121 3 1 JP2 HEADER 4 PIN 0 079 SINGLE ROW WURTH ELEKTRONIK 62000411121 4 2 XJP1 XJP2 SHUNT 0...

Страница 13: ...RATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING...

Страница 14: ...TUTORY 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 INCIDE...

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