IMP38C/HC/42/3/4/5
Application Information
+
UVLO
–
+
–
2R
–
1V COMP
R
+
T
Q
S
Q
R
UVL
Protection
(11)
VD
6 (10)
OUT
(8)
PGND
3 (5)
GND 5 ISNS
AGND (9)
Connection Notes
IMP38C4X, IMP38HC4X (8-Pin Devices)
50% Maximum Duty Cycle:
IMP38C44, IMP38HC44, IMP38C45, IMP38HC45
96% Maximum Duty Cycle:
IMP38C42, IMP38HC42, IMP38C43, IMP38HC43
( ) Pins Are 14-Pin Devices Only
Figure 3. UVL Protection Circuit
38C/HC_06.eps
© 2000 IMP, Inc.
PWM Controllers
7