A8436
Photoflash Capacitor Charger with IGBT Driver
Performance Characteristics
Tests performed using application circuit shown in figure 6 (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