XRP6840 Exar Corporation, XRP6840 Datasheet - Page 15

• Manufacturer Part Number: XRP6840
• Description: 4.3a Supercapacitor Flash Led Driver With I2c
• Manufacturer: Exar Corporation

To achieve 4.3A flash pulses, we recommend
using
EDLC2720-501-2F-50 with voltage rating of
TYPICAL APPLICATION SCHEMATICS
© 2009 Exar Corporation
0.55F
Super
Capacitor
Fig. 22: XRP6840A - 3 Channel - 4.3A Total LED Flash Current
from
4
4
.
.
3
3
A
A
TDK
S
S
u
u
15/17
p
p
e
e
r
r
5.5V and 50mΩ of ESR, or the 0.6F HS206F
Super Capacitor from CAP-XX with a voltage
rating of 5.5V and 80mΩ of ESR.
c
c
a
a
p
p
a
a
c
c
i
i
t
t
o
o
r
r
F
F
l
l
a
a
s
s
h
h
L
L
E
E
D
D
D
D
r
r
i
i
v
v
e
e
X
X
r
r
R
R
w
w
P
P
Rev. 1.0.0
i
i
6
6
t
t
h
h
8
8
I
I
4
4
2
2
0
0
C
C