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) ……………………………………………………………… -20oC ~ 85oC
(AP432I……………..…..…............……………………………..……. -40oC~85oC
Lead Temperature……………….…………….…..……………………..………………..……........260oC
Storage Temperature ……………………..............…......………………….......……...........-65oC ~ 150oC
Power Dissipation (Notes 1. 2)
SOT89 .……………..……..……………………...........….... 0. 80W
TO92.....…………….………………………....……….. ..... 0.78W
SOT23 …………………..…..…………………………….…. 0.25W
SOT25...……………………..………….……………………..0.25W
SOP...………………….……………………………..……… 0.6W
Note 1: TJ, max =150oC. .
Note 2: Ratings apply to ambient temperature at 25oC.
Electrical Characteristics (Ta=25oC, unless otherwise specified.)
Parameter
Reference voltage
Test conditions
Symbol Min.
Typ.
Max.
Unit
V
KA = Vref,
AP432
AP432A
1.227
1.252
VREF
1.24
V
I
KA = 10mA
(Fig.1)
1.233
1.246
Deviation of reference input voltage VKA = VREF , IKA = 10mA ,
VREF
3.0
-1.4
1.4
0.4
20
mV
mV/V
µA
over temperature (Note 3)
Ratio of the change in reference
voltage to the change in cathode
voltage
Ta = full range (Fig.1)
KA = 10mA
∆V
REF
I
VKA = 20 ~VREF
-2.0
3.5
1.2
∆V
(Fig.2)
KA
R1 = 10KΩ,R2 = ∞
IKA= 10mA (Fig.2)
R1 = 10KΩ,R2 = ∞
Reference input current
IREF
αIREF
IKA(min)
Deviation of reference input current
over temperature
I
KA = 10mA
µA
Ta = Full range (Fig.2)
KA = VREF (Fig.1)
Minimum cathode current for
regulation
Off-state current
V
0.15
0.1
0.3
1.0
mA
µA
VKA = 20V , VREF = 0V (Fig.3) IKA(off)
V KA = VREF
Dynamic output impedance (Note 4) ∆IKA = 0.1mA ~ 15mA
0.2
0.5
Ω
ZKA
Frequency≤ 1KHz (Fig.1)
Anachip Corp.
www.anachip.com.tw
4/16
Rev.1.0 May.7, 2004
ANACHIP [ ANACHIP CORP ]
