AP431Q DIODES [Diodes Incorporated], AP431Q Datasheet - Page 5

• Manufacturer Part Number: AP431Q
• Description: ADJUSTABLE PRECISION SHUNT REGULATOR
• Manufacturer: DIODES [Diodes Incorporated]

Reference voltage
Deviation of Reference input voltage over
temperature (Note 8)
Ratio of the change in Reference voltage to
the change in Cathode voltage
Reference input current
Deviation of Reference input current over
temperature
Minimum Cathode current for regulation
Off-state current
Dynamic output impedance (Note 9)
Electrical Characteristics
Note: 8. Deviation of reference input voltage, V
Where:
T2 – T1 = full temperature change.
αV
Note: 9. The dynamic output impedance, R
When the device is programmed with two external resistors R1 and R2 (see Figure 2.), the dynamic output impedance of the overall
circuit, is defined as:
AP431/AP431A Rev. 5
Z
REF
KA
'
can be positive or negative depending on whether the slope is positive or negative.
=
range. The average temperature coefficient of the reference input voltage αV
∆
∆
v
i
≈
PARAMETER
Z
KA
(1
+
R2
R1
V
V
)
MAX
MIN
α
Z
V
, is defined as:
T
I
REF
V
I
V
Ta = Full range (Fig.1)
I
R1 = 10KΩ,R2 = ∞ I
R1 = 10KΩ,R2 = ∞ I
Ta = Full range (Fig. 2)
V
V
V
∆I
Frequency
KA
KA
KA
KA
KA
KA
KA
KA
DEV
= 10mA (Fig. 2)
( T
= 10mA (Fig.1)
= V
= V
= V
= 36V, V
= V
= 0.1mA ~ 15mA
=
, is defined as the maximum variation of the reference over the full temperature
A
www.diodes.com
(
REF
REF
REF
REF
= 25
V
TEST CONDITIONS
,
, I
REF
V
≤
5 of 14
(Fig.1)
KA
ADJUSTABLE PRECISION SHUNT REGULATOR
REF
Z
V
KA
o
1KHz (Fig.1)
(25
= 10mA,
T
C, V
DEV
KA
V
= V
= 0V (Fig. 3)
Temperature
2
DEV
−
°
REF
=
C)
KA
KA
+
T
= V
= +5.0V, unless otherwise stated )
= 10mA (Fig. 2)
1
= 10mA
∆
V
V
∆
)
KA
KA
⋅
V
MAX
AP431
AP431A
I
10
KA
= 36V ~10V
KA
= 10V ~V
6
- V
MIN
……………………..……………….. (
REF
REF
SYMBOL MIN.
is defined as:
I
I
∆V
∆V
αI
KA(MIN)
KA(OFF)
V
V
|Z
I
REF
AP431/AP431A
REF
REF
REF
KA
REF
T
KA
2
|
2.470
2.482
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
2.495
TYP. MAX. UNIT
0.19
-1.4
8.0
1.4
0.4
0.1
0.2
-1
©
Diodes Incorporated
MARCH 2007
2.520
2.507
-2.0
3.5
1.2
0.5
1.0
0.5
20
-2
ppm
mV/V
mV/V
mV
mA
µA
µA
µA
°
V
Ω
C
)