Linear Technology DC1721B-A Скачать руководство пользователя страница 3 | Manualshive

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dc1721bf

DEMO MANUAL

DC1721B-A/DC1721B-B

QUICK START PROCEDURE

Figure 1. Proper Measurement Equipment Setup

Figure 2. Proper Noise Measurement Setup

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Содержание DC1721B-A

Страница 1: ...portableapplicationsincludinginstruments industrial equipment power tools and computers It has a total footprint area of 12 4cm2 3 6cm2 for the LTC4000 circuit only Synchronous rectification helps to attain efficiency exceeding 96 at full load and nominal input DC1721B A The LTC4000 has an input current limit regulation loop that prevents overloading sources with limited output capability DC1721B ...

Страница 2: ...s no output temporarily disconnect the load to make sure that the load is not set too high 8 OncetheproperVOUT SYSisagainestablished adjust the load and or source within the operating range and observe the output voltage regulation ripple voltage efficiency input and output current limit and other desired parameters 9 Turn off the power at the input 10 Connect the output load and meters to the BAT...

Страница 3: ...EMO MANUAL DC1721B A DC1721B B QUICK START PROCEDURE Figure 1 Proper Measurement Equipment Setup Figure 2 Proper Noise Measurement Setup Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Страница 4: ... LTC4000 Gm Gm Gm Gm LTC3789 NOT ON THE BOARD GND GND RC1 RC1 CC1 CC1 VOUT SYS VOUT SYS BAT BAT VIN VIN 10nF 10nF CC2 CC2 Figure 3 Efficiency from VIN to VOUT SYS DC1721A LTC4000 and LTC3789 Efficiency IOUT A 0 5 EFFICIENCY 100 95 85 90 80 2 5 4 5 1 5 3 5 5 5 VIN 36V VIN 24V VIN 6V VIN 15V Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Страница 5: ...A10 A8 A9 Rsense charge DC DC CONVERTER ITH LTC4000 1 Gm Gm Gm Gm LTC3789 NOT ON THE BOARD GND GND RC1 RC1 CC1 CC1 VOUT SYS VOUT SYS BAT BAT VIN VIN 10nF 10nF CC2 CC2 QUICK START PROCEDURE Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Страница 6: ...KY 40V 2A SMA DIODES ZETEX B240A 13 F 21 1 D9 DIODE ZENER 3V 500MW SOD 323 DIODES ZETEX BZT52C3V0S 7 F 22 1 F1 FUSE 6 3A 32V T LAG 1206 SMD COOPER BUSSMAN 3216TD6 3 R 23 1 L1 INDUCTOR 4 7μH TOKO FDA1254 4R7M 24 2 Q2 Q4 MOSFET N Chan 40V POWERPAK 8 VISHAY SiR422DP T1 GE3 25 2 Q3 Q5 MOSFET N Chan 20V POWERPAK 8 VISHAY SiR496DP T1 GE3 26 2 Q6 Q7 MOSFET P Chan 30V POWERPAK 8 VISHAY Si7135DP T1 GE3 27 ...

Страница 7: ...al Demo Board Circuit Components 57 0 C3 C23 C26 C27 OPT 1210 58 1 C33 CAP X5R 4 7μF 10V 20 0603 AVX 0603ZD475MAT2A 59 1 CBAT CAP X5R 2 2μF 25V 20 0805 AVX 08053D225MAT2A 60 0 CF1 CC1 R6 C7 C8 C11 R12 R22 R27 R30 R38 R43 R53 R61 R62 CNTC CF CCX OPT 0603 OPT 61 2 CIIMON CIBMON CAP C0G 1000pF 25V 5 0603 AVX 06033A102JAT2A 62 0 CIN3 CIN4 OPT 63 0 D11 OPT SOD323 OPT 64 1 LED2 LED DUAL RED GREEN LiteOn...

Страница 8: ...C3V0S 7 F 21 1 D10 DIODE ZENER 5 6V 500MW SOD 123 DIODES ZETEX BZT52C5V6 7 F 22 1 F1 FUSE 6 3A 32V T LAG 1206 SMD COOPER BUSSMAN 3216TD6 3 R 23 1 L1 INDUCTOR 4 7μH TOKO FDA1254 4R7M 24 2 Q2 Q4 MOSFET N Chan 40V POWERPAK 8 VISHAY SiR422DP T1 GE3 25 2 Q3 Q5 MOSFET N Chan 20V POWERPAK 8 VISHAY SiR496DP T1 GE3 26 2 Q6 Q7 MOSFET P Chan 30V POWERPAK 8 VISHAY Si7135DP T1 GE3 27 2 Q8 Q9 MOSFET SMALL SIGNA...

Страница 9: ... DC1721B B Additional Demo Board Circuit Components 58 0 C3 C23 C26 C27 OPT 1210 59 1 C33 CAP X5R 4 7μF 10V 20 0603 AVX 0603ZD475MAT2A 60 1 CBAT CAP X5R 2 2μF 25V 20 0805 AVX 08053D225MAT2A 61 0 CF1 CC1 R6 C7 C8 C11 R12 R22 R27 R30 R38 R43 R53 R61 R62 CNTC CF CCX OPT 0603 OPT 62 2 CIIMON CIBMON CAP C0G 1000pF 25V 5 0603 AVX 06033A102JAT2A 63 0 CIN3 CIN4 OPT 64 0 D11 OPT SOD323 OPT 65 1 LED2 LED DU...

Страница 10: ...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 LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY ...

Страница 11: ...ONS 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 LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOL...

Страница 12: ...E 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 responsibility to take any and all appropriate precautions with regard to electrostati...

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