LND3842/43/44/45
VREF
VREF
8
4
3
8
4
3
RT
RT
LND3842
LND3842
RT / CT
RT / CT
IS
IS
RSLOPE
R1
RS
RSLOPE
R1
RS
ISENSE
ISENSE
5
5
GND
GND
Figure 4. Slope Compensation Techniques
8
R
BIAS
R
+
1mA
+
2R
ERROR
AMP
2
R
-
1
5
SCR must be selected for a holding current of less than 0.5 mA.
A simple two transistor circuit can be used in place of the SCR
as shown.
Figure 5. Latched Shutdown
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com •