A8438(2005) View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

View to exact match

A8438
(Rev.:2005)

Photoflash Capacitor Charger with IGBT Driver

Allegro MicroSystems 

A8438 Photoflash Capacitor Charger with IGBT Driver

Performance Characteristics

Tests performed using application circuit shown in figure 6 (unless otherwise noted)

Charging Waveforms: 140 μF photoflash capacitor

Symbol Parameter Units/Division

C1

VOUT

50 V

C4

IBATT(Avg)

200 mA

t

time

1s

Conditions Parameter

Value

VBATT

2.0 V

VBIAS

3.3 V

C4

IAVG

770 mA

ILIM

1.8 A

COUT

140 μF

C1

VOUT

IBATT

t

Symbol Parameter Units/Division

C1

VOUT

50 V

C4

IBATT(Avg)

200 mA

t

time

1s

Conditions Parameter

Value

VBATT

2.0 V

VBIAS

3.3 V

IAVG

820 mA

ILIM

2.0 A

C4

COUT

140 μF

C1

VOUT

IBATT

t

A8438-DS, Rev. 1

Allegro MicroSystems, Inc.

6

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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