A8835EEJTR-T datasheet(6/15 Pages) ALLEGRO

Part #	A8835EEJTR-T

Description	The A8835 is a highly integrated IC that charges photoflash capacitors for digital and film cameras.

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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6 / 15 page

Photoflash Capacitor Charger

with Programmable Current Limit and IGBT Driver

A8835

6

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

Rising Signal

IGBT Drive Performance

Symbol

Parameter Units/Division

C2

VIGBTDRV

1 V

C3

VTRIGGER

1 V

t

time

50 ns

Conditions

Parameter

Value

tDr

22.881 ns

tr

63.125 ns

CLOAD

6800 pF

Rgate

12 Ω

C3

C2

t

VIGBTDRV

VTRIGGER

Falling Signal

Symbol

Parameter Units/Division

C2

VIGBTDRV

1 V

C3

VTRIGGER

1 V

t

time

50 ns

Conditions

Parameter

Value

tDf

27.427 ns

tf

65.529 ns

CLOAD

6800 pF

Rgate

12 Ω

tr

VIGBTDRV

VTRIGGER

t

C3

C2

tf

Performance Characteristics

IGBT Drive waveforms are measured with R-C load (12 Ω, 6800 pF)

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