Adjustable Precision Shunt Regulator
Absolute Maximum Ratings
Cathode Voltage…………....……..............................…..........……………………………………...……….20V
Continuous cathode current ………………………………......................……………………...-10mA ~ 250mA
Reference input current range ……………………...….………....................………………………………10mA
Operating temperature range
............………………………………………………………………
-40
o
C
~ 85
o
C
Lead Temperature……………….…………….…..……………………..………………..……........260
o
C
Storage Temperature ……………………..............…......………………….......……...........-65
o
C ~ 150
o
C
Power Dissipation (Notes 1. 2)
SOT-89 .……………..……..……………………...........….... 0. 80W
TO-92.....…………….………………………....……….. ..... 0.78W
SOT-23 …………………..…..…………………………….…. 0.25W
SOT-25...……………………..………….……………………..0.25W
SOP-8...………………….……………………………..……… 0.6W
Note 1: TJ, max =150
o
C. .
Note 2: Ratings apply to ambient temperature at 25
o
C.
Advanced Power
Electronics Corp.
AP432
Electrical Characteristics
(Ta=25
o
C, unless otherwise specified.)
Parameter
Test conditions
Symbo
l
Min.
1.227
1.233
Typ.
1.24
3.0
-1.4
1.4
0.4
0.15
0.1
0.2
Max.
1.252
1.246
20
-2.0
3.5
1.2
0.3
1.0
0.5
Unit
V
mV
mV/V
µA
µA
mA
µA
Ω
V
KA
= Vref,
-B
V
REF
Reference Voltage
I
KA
= 10mA
-A
(Fig.1)
Deviation of Reference Input Voltage V
KA
= V
REF
, I
KA
= 10mA ,
V
REF
over Temperature (Note 3)
Ta = full range
(Fig.1)
Ratio of the Change in Reference
∆
V
REF
I
KA
= 10mA
V
KA
= 20 ~V
REF
∆
V
Voltage to the Change in Cathode
(Fig.2)
KA
Voltage
R1 = 10KΩ,R2 =
∞
I
REF
Reference Input Current
I
KA
= 10mA (Fig.2)
R1 = 10KΩ,R2 =
∞
Deviation of Reference Input Current
αI
REF
I
KA
= 10mA
over Temperature
Ta = Full range (Fig.2)
Minimum Cathode Current for
V
KA
= V
REF
(Fig.1)
I
KA(min)
Regulation
Off-state Current
V
KA
= 20V , V
REF
= 0V (Fig.3) I
KA(off)
V = V
REF
Dynamic Output Impedance (Note 4)
KA
Z
KA
Frequency
≤
1KHz (Fig.1)
Advanced Power Electronics Corp.
www.a-power.com.tw
3
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