A8438(2005) Просмотр технического описания (PDF) - Allegro MicroSystems

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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: 100 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

COUT

100 μF

C4

C1

t

VOUT

IBATT

Symbol Parameter Units/Division

C1

VOUT

50 V

C4

IBATT(Avg)

200 mA

t

time

1s

Conditions Parameter

Value

VBATT

2.5 V

VBIAS

3.3 V

COUT

100 μF

C4

C1

t

VOUT

IBATT

Symbol Parameter Units/Division

C1

VOUT

50 V

C4

IBATT(Avg)

200 mA

t

time

1s

Conditions Parameter

Value

VBATT

3.0 V

VBIAS

3.3 V

COUT

100 μF

C4

C1

A8438-DS, Rev. 1

VOUT

IBATT

t

Allegro MicroSystems, Inc.

4

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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