XRP7620 Exar Corporation, XRP7620 Datasheet - Page 6

• Manufacturer Part Number: XRP7620
• Description: 4-channel Adjustable Current I2c Controlled Led Driver
• Manufacturer: Exar Corporation

Typical Performance Characteristics
All data taken at V
Information/Theory of Operation section of this datasheet.
CH
© 2009 Exar Corporation
1
= SDA, CH
Fig. 5: LED Current Change Settling Time
Fig. 7: SDA, SCL Timeout for Shutdown
2
= SCL, CH
From 0.5mA to 31.5mA
DAC = 101000 (20mA)
IN
Fig. 9: Line Regulation
= 2.7V to 5.5V, T
4
= I
LED
= 20mA/div
4
4
J
-
-
C
= T
C
h
h
A
a
a
= 25°C, unless otherwise specified - Schematic and BOM from Application
n
n
n
n
e
e
l
l
A
A
d
d
j
j
6/11
u
u
s
s
t
t
a
a
b
b
l
l
e
e
C
Fig. 6: LED Current Change Settling Time
Fig. 8: LED Current Change Settling Time
C
u
u
r
r
r
r
Fig. 10: Line Regulation LED1
e
e
From DAC 31.5mA to 0mA
n
n
DAC = 101000 (20mA)
From 0mA to 31.5mA
t
t
I
I
2
2
C
C
C
C
o
o
n
n
t
t
r
r
o
o
l
l
l
l
e
e
d
d
X
X
L
L
R
R
E
E
D
D
P
P
Rev. 1.0.0
7
7
D
D
6
6
r
r
i
i
2
v
2
v
e
e
0
0
r
r