SIC521 datasheet(7/16 Pages) VISHAY

7 / 16 page

SiC521, SiC521A

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Vishay Siliconix

S15-0170-Rev. B, 09-Feb-15

Document Number: 62989

For technical questions, contact: powerictechsupport@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

ELECTRICAL CHARACTERISTICS

Test condition: VIN = 12 V, VDRV = VCIN = 5 V, ZCD_EN# = 5 V, VOUT = 1 V, LOUT = 360 nH, (DCR = 0.32 m

Ω), TA = 25 °C

(All power loss and normalized power loss curves show SiC521 and SiC521A losses only unless otherwise stated)

Fig. 5 - Efficiency vs. Output Current

Fig. 6 - Efficiency vs. Output Current

Fig. 7 - UVLO Threshold vs. Temperature

Fig. 8 - Power Loss vs. Output Current

Fig. 9 - Safe Operating Area

Fig. 10 - BOOT Diode Forward Voltage vs. Temperature

Output Current, I

OUT (A)

Complete converter efficiency

IN = [(VIN x IIN) + 5 V x (IVDRV + IVCIN)]

OUT = VOUT x IOUT, measured at output capacitor

1 MHz

300 kHz

500 kHz

800 kHz

Output Current, I

OUT (A)

S = 500 kHz

OUT = 0.6 V

OUT = 0.8 V

OUT = 1.2 V

OUT = 1 V

2.6

2.8

3.0

3.2

3.4

3.6

3.8

4.0

4.2

-60

-40

-20

100 120 140

Temperature (°C)

UVLO_FALLING

UVLO_RISING

0.0

1.5

3.0

4.5

6.0

7.5

9.0

10.5

12.0

Output Current, I

OUT (A)

1 MHz

800 kHz

500 kHz

300 kHz

153045607590

105 120 135 150

PCB Temperature, T

PCB (°C)

1 MHz

300 kHz

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

-60

-40

-20

100 120 140

Temperature (°C)

F = 2 mA

SiC521 数据表(PDF) 7 Page - Vishay Siliconix

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