Datasheet

LTM2881
10
2881fg
For more information www.linear.com/LTM2881
BLOCK DIAGRAM
120Ω
A
Y
TE
RE
RO
2.2µF
2.2µF
2.2µF
V
CC
V
L
GND
D
OUT
Z
SLO
D
IN
B
2881 BD
V
CC2
ISOLATED
DC/DC
CONVERTER
ON
DI
DE
= LOGIC SIDE COMMON = ISOLATED SIDE COMMON
GND2
ISOLATED
COMM
INTERFACE
ISOLATED
COMM
INTERFACE
5V
REG
RX
DX
TEST CIRCUITS
–
+
DRIVER
DI
GND
OR
V
L
R
2881 F01
Y
Z
R
V
OC
–
+
V
OD
DRIVER
DI
GND
OR
V
L
2881 F02
Y
Z
+
–
I
OSD
–7V TO 12V
+
–
RECEIVER
2881 F03
A OR B
V
IN
I
IN
B OR A
V
IN
I
IN
R
IN
=
Figure 1. Driver DC Characteristics Figure 2. Driver Output Short-Circuit Current
Figure 3. Receiver Input Current and Input Resistance