A8740 데이터 시트보기 (PDF) - Allegro MicroSystems

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A8740

Ultra Small Mobile Phone Xenon Photoflash Capacitor Charger with IGBT Driver

Allegro MicroSystems 

A8740

Ultra Small Mobile Phone Xenon Photoflash

Capacitor Charger with IGBT Driver

Characteristic Performance

IGBT Drive Performance

IGBT drive waveforms are measured at pin, with capacitive load of 6800 pF

tr

Rising Signal

VIN

Symbol

C1

C2

C3

t

Conditions

Parameter

VTRIGGER

VGATE

VIN

time

Parameter

tDr

tr

CLOAD

Units/Division

1V

1V

1V

20 ns

Value

21 ns

85 ns

6.8 nF

C2,C3

VGATE

VTRIGGER

C1

t

Falling Signal

Symbol

C1

C2

C3

t

Conditions

Parameter

VTRIGGER

VGATE

VIN

time

Parameter

tDf

tf

CLOAD

Units/Division

1V

1V

1V

200 ns

Value

80 ns

765 ns

6.8 nF

C2,C3

C1

tf

VIN

VGATE

VTRIGGER

t

Allegro MicroSystems, Inc.

6

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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