TS431_15 Datasheet, PDF (1/13 Pages) Taiwan Semiconductor Company, Ltd – 2.495V Programmable Shunt Voltage Reference

TS431
Taiwan Semiconductor
2.495V Programmable Shunt Voltage Reference
GENERAL DESCRIPTION
TS431 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 V_REF 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 TS431 series operates as a
shunt regulator, it can be used as either a positive or
negative stage reference.
FEATURES
● Precision Reference Voltage
TS431 –2.495V ±2%
TS431A – 2.495V ±1%
TS431B – 2.495V ±0.5%
● Equivalent Full Range Temp. Coefficient:
50ppm/°C
● 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
APPLICATION
● SMPS
● Lighting
● Telecommunication
● Home appliance
TO-92
Pin Definition:
1. Reference
2. Anode
3. Cathode
SOT-23
Pin Definition:
1. Reference
2. Cathode
3. Anode
SOP-8
Pin Definition
1. Cathode
2. Anode
3. Anode
4. N/C
5. N/C
6. Anode
7. Anode
8. Reference
Notes:
1. Moisture sensitivity level: level 3. Per J-STD-020 (SOP-8)
2. Moisture sensitivity level: level 1. Per J-STD-020 (SOT-23)
TYPICAL APPLICATIN CIRCUIT
Document Number: DS_P0000235
1
Version: H15