TLV431A_16 Datasheet, PDF (1/17 Pages) ON Semiconductor – Low Voltage Precision Adjustable Shunt Regulator

TLV431A, TLV431B,
TLV431C, SCV431B, NCV431
Low Voltage Precision
Adjustable Shunt Regulator
The TLV431A, B and C series are precision low voltage shunt
regulators that are programmable over a wide voltage range of 1.24 V to
16 V. The TLV431A series features a guaranteed reference accuracy of
±1.0% at 25°C and ±2.0% over the entire industrial temperature range of
−40°C to 85°C. The TLV431B series features higher reference accuracy
of ±0.5% and ±1.0% respectively. For the TLV431C series, the accuracy
is even higher. It is ±0.2% and ±1.0% respectively. These devices exhibit
a sharp low current turn−on characteristic with a low dynamic impedance
of 0.20 W over an operating current range of 100 mA to 20 mA. This
combination of features makes this series an excellent replacement for
zener diodes in numerous applications circuits that require a precise
reference voltage. When combined with an optocoupler, the
TLV431A/B/C can be used as an error amplifier for controlling the
feedback loop in isolated low output voltage (3.0 V to 3.3 V) switching
power supplies. These devices are available in economical TO−92−3 and
micro size TSOP−5 and SOT−23−3 packages.
Features
• Programmable Output Voltage Range of 1.24 V to 16 V
• Voltage Reference Tolerance ±1.0% for A Series, ±0.5% for B Series
and ±0.2% for C Series
• Sharp Low Current Turn−On Characteristic
• Low Dynamic Output Impedance of 0.20 W from 100 mA to 20 mA
• Wide Operating Current Range of 50 mA to 20 mA
• Micro Miniature TSOP−5, SOT−23−3 and TO−92−3 Packages
• These are Pb−Free and Halide−Free Devices
• SCV and NCV Prefix for Automotive and Other Applications
Requiring Unique Site and Control Change Requirements;
AEC−Q100 Qualified and PPAP Capable
Applications
• Low Output Voltage (3.0 V to 3.3 V) Switching Power Supply
Error Amplifier
• Adjustable Voltage or Current Linear and Switching Power Supplies
• Voltage Monitoring
• Current Source and Sink Circuits
• Analog and Digital Circuits Requiring Precision References
• Low Voltage Zener Diode Replacements
www.onsemi.com
TO−92
LP SUFFIX
CASE 29
123
STRAIGHT LEAD
BULK PACK
1
2
3
BENT LEAD
TAPE & REEL
AMMO PACK
4
5
1 ²³
TSOP−5
SN SUFFIX
CASE 483
3
1
2
SOT−23−3
SN1 SUFFIX
CASE 318
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
DEVICE MARKING INFORMATION
AND PIN CONNECTIONS
See general marking information in the device marking
section on page 13 of this data sheet.
Reference (R)
+
-
1.24 V_ref
Cathode (K)
Anode (A)
Figure 1. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2016
1
February, 2016 − Rev. 21
Publication Order Number:
TLV431A/D