XRP7620 Exar Corporation, XRP7620 Datasheet - Page 4

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

Note 3: Ling regulation is calculated by this equation:
Note 4: Guaranteed by design.
Note 5: Cb = total capacitance of one bus line in pF. t
Note 6: I
Note 7: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.
BLOCK DIAGRAM
PIN ASSIGNEMENT
© 2009 Exar Corporation
SINK
I
2
I
AVG
−
≤6mA. Cb =total capacitance of one bus line in pF. t
I
1
×
Δ
1
V
×
100
%
Where I
1
and I
GND
SDA
4
SCL
4
VIN
-
-
2
C
C
is the current at different V
h
h
Fig. 4: XRP7620 Pin Assignement
a
a
Fig. 3: XRP7620 Block Diagram
n
n
n
n
1
2
3
4
e
e
l
l
R
and t
A
A
2mm x 3mm
DFN-8L
d
d
j
j
4/11
F
u
u
measured between 0.3 x V
s
s
t
t
a
R
a
and t
b
b
l
l
e
e
IN
8
7
6
5
F
.
C
C
measured between 0.3 x V
u
u
r
r
r
r
LED1
LED2
LED3
LED4
e
e
n
n
t
t
I
I
2
2
C
DD
C
and 0.7 x V
C
C
o
o
n
n
t
t
r
r
o
o
DD
l
l
l
DD
and 0.7 V
l
e
e
.
d
d
X
X
L
L
R
R
E
E
D
D
P
P
DD
Rev. 1.0.0
.
7
7
D
D
6
6
r
r
i
i
2
v
2
v
e
e
0
0
r
r