ST432 Datasheet, PDF (4/13 Pages) Stanson Technology – Adjustable Precision Shunt Regulator

ST432
Adjustable Precision Shunt Regulator


ELECTRICAL CHARACTERISTICS (TA=25Ċ, unless otherwise specified)
SP432AS23RG & SP432AS25RG & SP432AS35RG
Parameter
Symbol
Conditions
Reference Voltage for 432A
Reference Voltage for 432B
VREF Temp Deviation
VREF
VREF
VDEV
VZ = VREF TA=25Ċ
IZ = 10mA TA=-40Ċ~+80Ċ
VZ = VREF TA=25Ċ
IZ = 10mA TA=-40Ċ~+80Ċ
TA=-40Ċ~+80Ċ
VZ = VREF , IZ = 10mA
Ratio of change in VREF to ∆VREF / IZ = 10mA
change in Cathode voltage ∆VZ ∆VZ = 16V ~ VREF
Min.
1.234
1.222
1.228
1.215
Typ.
1.24
1.24
Max. Unit
1.246
1.258
V
1.252
1.265
V
10 25 mV
-1.0
-2.7
mV/
V
Reference Input Current
IREF R1=10KΩ, R2= ∞,IZ= 10mA
0.15 0.5 uA
IREF Temp Deviation
IREF(DEV)
TA=-40Ċ~+80Ċ
R1=10KΩ,R2=∞, IZ = 10mA
Off state Cathode Current IZ(OFF) VREF = 0V
VZ = 6V
VZ = 12V
Dynamic output impedance
RZ
f < 1KHZ , VZ = VREF
IZ = 1mA ~ 100mA
Minimum Operation Current IZ(MIN) VZ = VREF
0.1 0.4 uA
0.5 1.0 uA
0.25 0.4 Ω
30 80 uA
APPLICATION CIRCUIT


STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
http://www.stansontech.com
ST432 2007. V1