SG1846 Microsemi Corporation, SG1846 Datasheet - Page 9

• Manufacturer Part Number: SG1846
• Description: CURRENT MODE PWM CONTROLLER
• Manufacturer: Microsemi Corporation

4/90 Rev 1.1 2/94
Copyright
APPLICATIONS INFORMATION
1994
If
when I
V
R
REF
1
SS
< 0.8mA the shutdown latch will commutate
< 0.8mA and a restart cycle will be initiated.
FIGURE 28 - SHUTDOWN WITH AUTO-RESTART
V
R
REF
1
< 0.8mA
(continued)
FIGURE 27 - SOFT START AND SHUTDOWN/RESTART FUNCTIONS
FIGURE 26 - PULSE BY PULSE CURRENT LIMITING
9
FIGURE 29 - SHUTDOWN WITHOUT AUTO-RESTART (LATCHED)
If
until power is recycled.
V
R
REF
1
V
R
REF
> 3mA the device will latch off
1
>3mA (LATCHED OFF)
11861 Western Avenue
L
INFINITY Microelectronics Inc.
[phone]
Garden Grove, CA 92841
SG1846
FAX: [phone]