CM431ABCN N/A, CM431ABCN Datasheet - Page 8

• Manufacturer Part Number: CM431ABCN
• Manufacturer: N/A

APPLICATION INFORMATION
2004/08/27
V
Note: R should provide 1mA cathode current to the
BATT
V
BATT
Figure 6. High-Current Shunt Regulator
CM431A of minimum V
Figure 4. Shunt Regulator
V
V
O
O
R*
= (1 + R1/R2) × V
= (1 + R1/R2) × V
Champion Microelectronic Corporation
0.1%
0.1%
V
REF
R1
R2
R2
R1
BATT
CM431A
REF
REF
CM431A
V
O
V
O
L
OW
Figure 5. Single –Supply Comparator With Temperature
V
V
BATT
OLTAGE
Input
R2
R1
compensated threshold.
Figure 7. Crowbar Circuit
V
A
th
DJUSTABLE
= 2.5V
CM431A
V
BATT
CM431A
V
V
S
on
off
V
GND
O
C
≈ V
HUNT
≈ 2V
BATT
V
O
R
CM431A
EGULATOR
Page 8