A8439 查看數據表（PDF） - Allegro MicroSystems
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A8439 Datasheet PDF : 14 Pages
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A8439
Photoflash Capacitor Charger with IGBT Driver and Refresh
Performance Characteristics
Tests performed using application circuit shown in figure 8
with ISWLIM set to 1.4A (Single rising edge on CHARGE pin), unless otherwise noted
Charging Waveforms
VOUT
Symbol Parameter Units/Division
C1
VOUT
50 V
C4
IBATT(Avg)
200 mA
t
time
1s
Conditions Parameter
Value
C4
VBATT
2.5 V
VBIAS
3.3 V
COUT
100 μF
IBATT
C1
t
Symbol Parameter Units/Division
C1
VOUT
50 V
C4
IBATT(Avg)
200 mA
t
time
1s
Conditions Parameter
Value
C4
VBATT
3.6 V
VBIAS
3.3 V
COUT
100 μF
C1
t
VOUT
IBATT
Symbol Parameter Units/Division
C1
VOUT
50 V
C4
IBATT(Avg)
200 mA
t
time
1s
Conditions Parameter
Value
C4
VBATT
4.2 V
VBIAS
3.3 V
COUT
100 μF
C1
VOUT
IBATT
t
Allegro MicroSystems, Inc.
6
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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