Owner manual

AP431/AP431A
Document number: DS31002 Rev. 21 - 2
3 of 17
www.diodes.com
June 2013
© Diodes Incorporated
AP431/AP431A
Absolute Maximum Ratings (@T
A
= +25°C, unless otherwise specified.)
Parameter Rating Unit
Cathode Voltage +36 V
Continuous Cathode Current -10 to +250 mA
Reference Input Current 10 mA
Operating Temperature -20 to +85 °C
Storage Temperature -65 to +150 °C
Power Dissipation (Notes 4, 5)
SOT23(R) 400 mW
SOT25 550 mW
SC59(R) 400 mW
SO-8 600 mW
SOT89 800 mW
TO92 780 mW
Notes: 4. T
J
, max = +150°C.
5. Ratings apply to ambient temperature at +25°C.
Electrical Characteristics (@T
A
= +25°C, V
DD
= 3V; unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Units
V
REF
Reference voltage
V
KA
= V
REF
,
I
KA
= 10mA (Figure 1)
AP431
AP431A
2.470
2.482
2.495
2.520
2.507
V
V
DEV
Deviation of reference input voltage over
temperature (Note 5)
V
KA
= V
REF
, I
KA
= 10mA
T
A
= Full Range (Figure 1)
— 8.0 20.0 mV
V
REF
V
KA
Ratio of the change in reference voltage to
the change in cathode voltage
I
KA
= 10mA (Figure 2)
V
KA
= V
REF
to 10V
— -1.4 -2.0 mV/V
V
KA
= 10V to 36V
— -1 -2 mV/V
I
REF
Refernce input current
R1 = 10K, R2 =  I
KA
= 10mA (Figure 2)
— 1.4 3.5 µA
I
REF
Deviation of reference input current over
temperature
R1 = 10K, R2 =  I
KA
= 10mA
T
A
= Full range (Figure 2)
— 0.4 1.2 µA
I
KA(MIN)
Minimum cathode current for regulation
V
KA
= V
REF
(Figure 1)
— 0.19 0.50 mA
I
KA(OFF)
Off-state current
V
KA
= 36V, V
REF
= 0V (Figure 3)
— 0.1 1.0 µA
|Z
KA
|
Dynamic output impedance (Note 7)
V
KA
= V
REF
V
KA
= V
REF
I
KA
= 0.1mA to 15mA
Frequency  1KHz (Figure 1)
— 0.2 0.5 