a8439eej-t Allegro MicroSystems, Inc., a8439eej-t Datasheet - Page 6

• Manufacturer Part Number: a8439eej-t
• Description: A8439 Photoflash Capacitor Charger With Igbt Driver And Refresh
• Manufacturer: Allegro MicroSystems, Inc.

A8439
Charging Waveforms
Conditions
Conditions
Conditions
Symbol
Symbol
Symbol
C1
C4
C1
C4
C1
C4
with I
t
t
t
SWLIM
Photoflash Capacitor Charger with IGBT Driver and Refresh
Parameter Units/Division
Parameter
Parameter Units/Division
Parameter
Parameter Units/Division
Parameter
I
I
I
BATT(Avg)
BATT(Avg)
BATT(Avg)
V
V
V
V
V
V
V
C
V
C
V
C
time
time
time
BATT
BATT
BATT
BIAS
BIAS
BIAS
OUT
OUT
OUT
OUT
OUT
OUT
set to 1.4A (Single rising edge on CHARGE pin), unless otherwise noted
Tests performed using application circuit shown in figure 8
200 mA
200 mA
200 mA
Performance Characteristics
100 μF
100 μF
100 μF
Value
Value
Value
2.5 V
3.3 V
3.6 V
3.3 V
4.2 V
3.3 V
50 V
50 V
50 V
1 s
1 s
1 s
C4
C1
C4
C1
C4
C1
t
t
t
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
V
I
V
I
V
I
BATT
BATT
BATT
OUT
OUT
OUT
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