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부품번호 | TS431 기능 |
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기능 | Adjustable Precision Shunt Regulator | ||
제조업체 | Taiwan Semiconductor | ||
로고 | |||
전체 10 페이지수
TS1431
Adjustable Precision Shunt Regulator
SOT-23
Pin Definition:
1. Cathode
2. Reference
3. Anode
General Description
TS1431 series integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage
references operate as a low temperature coefficient zener which is programmable from VREF to 36 volts with two
external resistors. These devices exhibit a wide operating current range of 1.0 to 100mA with a typical dynamic
impedance of 0.22Ω. The characteristics of these references make them excellent replacements for zener diodes in
many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5V reference makes it
convenient to obtain a stable reference from 5.0V logic supplies, and since The TS1431 series operates as a shunt
regulator, it can be used as either a positive or negative stage reference.
Features
● Precision Reference Voltage
TS1431A – 2.495V±1%
TS1431B – 2.495V±0.5%
● Equivalent Full Range Temp. Coefficient: 50ppm/ ºC
● Programmable Output Voltage up to 36V
● Fast Turn-On Response
● Sink Current Capability of 1~100mA
● Low Dynamic Output Impedance: 0.2Ω
● Low Output Noise
Ordering Information
Part No.
Package
Packing
TS1431xCX RFG
SOT-23
3,000pcs / 7” Reel
Note: “G” denote for Green Product
Where xx denotes voltage tolerance
A: ±1%, B: ±0.5%
Application
● Voltage Monitor
● Delay Timmer
● Constant –Current Source/Sink
● High-Current Shunt Regulator
● Crow Bar
● Over-Voltage / Under-Voltage Protection
Block Diagram
Absolute Maximum Ratings (TA = 25oC unless otherwise noted)
Parameter
Symbol
Cathode Voltage
Continuous Cathode Current Range
Reference Input Current Range
Power Dissipation
Junction Temperature
Operating Temperature Range
Storage Temperature Range
VKA
IKA
IREF
PD
TJ
TOPR
TSTG
Limit
36
1 ~ +100
-0.05 ~ +10
0.30
+150
0 ~ +70
-65 ~ +150
Unit
V
mA
mA
W
oC
oC
oC
Document Number: DS_P0000229
1
Version: E15
Applications Examples (Continue)
TS1431
Adjustable Precision Shunt Regulator
Figure 6: Shunt Regulator
Figure 7: High Current Shunt Regulator
Figure 8: Series Pass Regulator
Figure 9: Constant Current Source
Figure 10: TRIAC Crowbar
Document Number: DS_P0000229
4
Figure 11: SCR Crowbar
Version: E15
4페이지 TS1431
Adjustable Precision Shunt Regulator
Typical Performance Characteristics (Continue)
Test Circuit for Curve A
The areas under the curves represent conditions that may
cause the device to oscillate. For curves B, C, and D, R2
and V+ were adjusted to establish the initial VKA and IKA
conditions with CL=0. VBATT and CL then were adjusted to
determine the ranges of stability.
Test Circuit for Curve B, C and D
Figure 17: Stability Boundary Condition
Test Circuit for Pulse Response, Ik=1mA
Figure 18: Pulse Response
Document Number: DS_P0000229
7
Version: E15
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부품번호 | 상세설명 및 기능 | 제조사 |
TS431 | LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE | STMicroelectronics |
TS431 | Adjustable Precision Shunt Regulator | Taiwan Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |