CM431LACM2R3 N/A, CM431LACM2R3 Datasheet - Page 9

• Manufacturer Part Number: CM431LACM2R3
• Description: LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR
• Manufacturer: N/A

APPLICATION CIRCUIT
2006/02/10 Rev. 5
Notes for Application Circuit：
1)
2)
• The maximum limit for R should be such that the
• The minimum limit for R should be such that Iz
V
cathode current, Iz, is greater than the minimum
operating current（80μA）at V
does not exceed 100mA under all load conditions,
and the instantaneous turn-on value for Iz does not
exceed 150mA. Both of the following conditions
must be met：
R
R
OUT
min
min
Set V
Choose the value for R as follows：
=V
≥
≥
REF
OUT
( 1 + R1/R2 ) +I
V
150mA
V
I
OUT
according to the following equation：
IN
IN
（
（
（
max
max
min
）
）
）
–V
+ 100mA
OUT
REF
（to limit instantaneous turn-on Iz）
R1
IN
（
min
）
.
（to limit Iz under normal operating conditions）
Champion Microelectronic Corporation
L
OW
V
OLTAGE
A
DJUSTABLE
S
HUNT
R
CM431L
EGULATOR
Page 9