ET431 regulator Datasheet

ET431 Datasheet PDF, Equivalent


Part Number

ET431

Description

three-terminal adjustable regulator

Manufacture

Estek Electronics

Total Page 3 Pages
Datasheet
Download ET431 Datasheet


ET431
Description
The ET431 is a three-terminal adjustable regulator series with a guaranteed thermal stability over applicable
temperature ranges. The output voltage may be set to any value between Vref (approximately 2.5 volts) and
36 volts with two external resistors. The devices have a typical dynamic output impedance of 0.2 . Active
output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacement for
zener diodes in many applications. The ET431 is characterized for operation from -0 to +70
Features
www.DataPShroegert4aUm.cmomable Output Voltage to 36V
Low Dynamic Output Impedance 0.2
Sink Current Capability of 0.1 mA to 100 mA
Equivalent Full-Range Temperature Coefficient of 50 ppm/oC
Temperature Compensated for Operation over Full Rated
Operating Temperature Range
Low Output Noise
Fast Turn on
ET431
A
ET431
R AK
TO –92
RK
SOT –23
Package
FUNCTIONAL BLOCK DIAGRAM SYM BOL
Reference
Cathode
Anode
Cathode
Reference
Anode
BEIJING ESTEK ELECTRONICS CO.,LTD
1

ET431
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified)
Characteristic
Symbol
Cathode Voltage
Cathode Current Range (Continuous)
Reference Input Current Range
Power Dissipation at 25oC:
TO –92 Package
SOT –23 –3 Package
www.DoCa/tWaS) heet4U.com
Junction Temperature Range
Operating Temperature Range
Storage Temperature Range
VKA
IK
IREF
PD
TJ
Tg
Tst g
Value
36
-100 ~ 150
0.05 ~ 10
0.7
0.2
0 ~ 150
0 ~ 70
-65 ~ +150
Unit
V
mA
mA
W
W
oC
oC
oC
Electrical Characteristics
(Ta = 25oC, VKA = VREF, IK = 10mA)
Characteristic
Symbol
Reference Input Voltage
VREF
Deviation of Reference Input
Voltage Over Full Temperature Range
VREF(de v)
Ratio of Change in Reference Input
Voltage to the Change in Cathode
Voltage
V REF
VKA
Reference Input Current
Deviation of Reference Input
Current Over Full Temperature
Range
Minimum Cathode Current for
Regulation
Off-State Cathode Current
Dynamic Impedance
IREF
IREF(dev)
IK(min)
IK(off)
ZKA
Test Condition
0.5%
1.0%
TminTaTmax
VKA = 10V-VREF
VKA = 36V- 10V
R1 = 10K, R2 =
R1 = 10K, R2 =
VKA = 36V, VREF = 0
IK = 1 mA to 100 mA , f ,1.0KHz
Min Typ
2.483 2.495
2.470
3
Max
2.507
2.520
17
Unit
V
mV
-1.4 -2.7
-1.0 -2.0
1.8 4
0.4 1.2
mV/V
A
A
0.25 0.5
0.26 1.0
0.22 0.5
mA
A
ohm
BEIJING ESTEK ELECTRONICS CO.,LTD
2


Features Description The ET431 is a three-termina l adjustable regulator series with a gu aranteed thermal stability over applica ble temperature ranges. The output volt age may be set to any value between Vre f (approximately 2.5 volts) and 36 volt s with two external resistors. The devi ces have a typical dynamic output imped ance of 0.2 . Active output circuitry p rovides a very sharp turn-on characteri stic, making these devices excellent re placement for zener diodes in many appl ications. The ET431 is characterized fo r operation from -0 ℃to +70℃ Featu res www.DataSheet4U.com  Programmabl e Output Voltage to 36V A  Low Dyn amic Output Impedance 0.2  Sin k Current Capability of 0.1 mA to 100 m A  Equivalent Full-Range Temperature Coefficient of Operating Temperature R ange  Low Output Noise  Fast Turn on 50 ppm/oC  Temperature Compensat ed for Operation over Full Rated ET431 ET431 R A K R K TO – 92 SOT 23 Package FUNCTIONAL BLOCK DIAGRAM SYM BOL Cathode Reference Cathode Reference .
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