LND3842/43/44/45
ICC
13mA
VCC
7
ON/OFF COMMAND
TO S/R OF IC
LND3843
LND3845
LND3842
LND3844
.2mA
VON
16V
10V
8.4V
7.6V
VCC
During UVLO, the Output is low
VOFF
VOFF
VON
Figure 2. Undervoltage Lockout
ERROR
AMP
2R
+
-
2
1
3
VFB
R
1V
IS
COMP
CURRENT
SENSE
COMPARATOR
R
C
CURRENT
SENSE
RS
5
GND
y
1.0V
Peak current is determined by IS max
R
S
Figure 3. Current Sense Circuit
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com •