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Linear Technology DC1825A, Демонстрационное руководство

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dc1825af

DEMO MANUAL DC1825A

parts List

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

1

C2

CAP., X7R, 2.2µF 100V, 10% 1210  

MURATA, GRM32ER72A225KA35L

2

1

C3

CAP., X5R, 100µF 6.3V, 20% 1210

AVX, 12106D107MAT2A

3

1

C4

CAP., X7R, 4700pF 1000V, 10% 1210  

VISHAY/VITRAMON, VJ1210Y472KXGAT5Z

4

1

D1

DIODE, SCHOTTKY, 30V 1A PWRDI123

DIODES INC., DFLS130-7

5

1

D2

SMT ZENER DIODE, 5.6V SOD-523

DIODES INC., BZT52C5V6T-7

6

1

R1

RES., CHIP, 806k, 1%, 0805

VISHAY, CRCW0805806KFKEA

7

1

R2

RES., CHIP, 53.6k, 1%, 0603

VISHAY, CRCW060353K6FKEA

8

1

R3

RES., CHIP, 365k, 1%, 0603

VISHAY, CRCW0603365KFKEA

9

1

T1

TRANSFORMER 7:1

WÜRTH ELECTONIK, 750312366

10

1

U1

I.C., LT8300ES5, TSOT-23

LINEAR TECH., LT8300ES5#PBF

Additional Demo Board Circuit Components

1

0

C1

CAP., 0805

OPT

2

0

R4

RES., 0805

OPT

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Содержание DC1825A

Страница 1: ...ge with a single external resistor and integrates compensation and soft start circuitry inside Boundary mode operation provides a small magnetic solution with improved load regulation Low ripple Burst Mode opera tionmaintainshighefficiencyatlightloadswhileminimizing the output voltage ripple A 260mA 150V DMOS power switch is integrated along with all high voltage circuitry and control logic into a...

Страница 2: ...mmended to make sure the voltage spike at the switching node is always less than 150V 3 Checkfortheproperoutputvoltages Theoutputshould be regulated at 5 0V 5 NOTE The LT8300 requires very small minimum load to maintain good output voltage regulation A Zener diode is placed on the output to clamp the voltage to 5 0V This Zener is optional and can be replaced with a 5 1k resistor 4 Once the proper ...

Страница 3: ... OR OUTPUT CAPACITOR Figure 3 Typical Efficiency and Regulation Curves LOAD CURRENT mA 50 EFFICIENCY 60 70 85 55 65 75 80 100 200 DC1825A F03a 250 50 0 150 VIN 22V VIN 48V LOAD CURRENT mA 4 50 V OUT V 4 60 4 70 5 00 4 55 4 65 4 75 4 90 4 85 4 95 4 80 100 200 DC1825A F03b 250 50 0 150 VIN 48V VIN 22V Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Страница 4: ... 1A PWRDI123 DIODES INC DFLS130 7 5 1 D2 SMT ZENER DIODE 5 6V SOD 523 DIODES INC BZT52C5V6T 7 6 1 R1 RES CHIP 806k 1 0805 VISHAY CRCW0805806KFKEA 7 1 R2 RES CHIP 53 6k 1 0603 VISHAY CRCW060353K6FKEA 8 1 R3 RES CHIP 365k 1 0603 VISHAY CRCW0603365KFKEA 9 1 T1 TRANSFORMER 7 1 WÜRTH ELECTONIK 750312366 10 1 U1 I C LT8300ES5 TSOT 23 LINEAR TECH LT8300ES5 PBF Additional Demo Board Circuit Components 1 0...

Страница 5: ...ON 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 Monday July 02 2012 1 1 HZ ZHONGMING Y N A LT8300ES5 DEMO CIRCUIT 1825A SIZE D...

Страница 6: ...CEPT 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 responsibility...

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