AP432/AP432A
Adjustable Precision Shunt Regulator
Absolute Maximum Ratings
Cathode Voltage……………....……...........…..........……………………………………...……….20V
Continuous cathode current ………………………………......................……………………...-10mA ~ 250mA
Reference input current range ………………………...….………....................………………………………10mA
Operating temperature range (AP432) ……………………………………………………………… -20
o
C ~ 85
o
C
(AP432I……………..…..…............……………………………..……. -40
o
C~85
o
C
Lead Temperature……………….…………….…..……………………..………………..……........260
o
C
Storage Temperature ……………………..............…......………………….......……...........-65
o
C ~ 150
o
C
Power Dissipation (Notes 1. 2)
SOT89 .……………..……..……………………...........….... 0. 80W
TO92.....…………….………………………....……….. ..... 0.78W
SOT23 …………………..…..…………………………….…. 0.25W
SOT25...……………………..………….……………………..0.25W
SOP...………………….……………………………..……… 0.6W
Note 1: TJ, max =150
o
C. .
Note 2: Ratings apply to ambient temperature at 25
o
C.
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,
AP432
V
REF
Reference voltage
I
KA
= 10mA
AP432A
(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
KA
= V
REF
Dynamic output impedance (Note 4)
∆
I
KA
= 0.1mA ~ 15mA
Z
KA
Frequency
≤
1KHz (Fig.1)
Anachip Corp.
www.anachip.com.tw
4/16
Rev.1.1
Sep.23, 2004
ANACHIP [ ANACHIP CORP ]
