CM431A
L
OW
V
OLTAGE
A
DJUSTABLE
S
HUNT
R
EGULATOR
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over the operating ambient temperatures with T
A
= 25°C.
Parameter
Symbol
Test Conditions
I
K
= 10mA, V
KA
= V
REF
,0.5%
CM431A
Min
2.488
2.475
2.463
O
Typ
2.5
2.5
2.5
4
-1.4
2
Max
2.512
2.525
2.537
17
-2.7
4
2.3
1
1
0.5
Units
V
V
V
mV
mV/V
μA
mA
μA
Ω
Reference Input Voltage
Reference Drift
Voltage Ratio, Ref to Cathode
(note 4)
Reference Input Current
Minimum Operating Current
Off-State Cathode Current
Dynamic Impedance
V
REF
I
K
= 10mA, V
KA
= V
REF
,1.0%
I
K
= 10mA, V
KA
= V
REF
,1.5%
I
K
= 10mA, V
KA
= V
REF
, 0 C
≤
T
A
≤
70 C
O
I
K
= 10mA, V
KA
= 2.5V to 18V
I
REF
I
MIN
I
OFF
|Z
KA
|
I
K
= 10mA,V
KA
= V
REF
I
K
= 10mA,V
KA
= V
REF
, 0 C
≤
T
A
≤
70 C
O
O
V
KA
= V
REF
V
KA
= 18V, V
REF
= 0V
V
KA
= V
REF
, I
K
= 1mA to 100mA,
f
≤
1kHz
0.4
0.1
0.2
Note 3: These parameters are guaranteed by design
Note 4:
V
REF
V
KA
Ratio of change in reference input voltage to the change in cathode voltage
2006/10/11 Rev1.2
Champion Microelectronic Corporation
Page 5
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
