Datasheet TLV431, NCV431, SCV431 (ON Semiconductor)

link to page 14 link to page 13 Low Voltage Precision Adjustable Shunt Regulator TLV431, NCV431, SCV431 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
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−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 Pin 1. Reference zener diodes in numerous applications circuits that require a precise 2. Anode reference voltage. When combined with an optocoupler, the 1 1 3. Cathode 2 2 TLV431A/B/C can be used as an error amplifier for controlling the 3 3 feedback loop in isolated low output voltage (3.0 V to 3.3 V) switching STRAIGHT LEAD BENT LEAD BULK PACK TAPE & REEL power supplies. These devices are available in economical TO−92−3 and AMMO PACK micro size TSOP−5 and SOT−23−3 packages.
TO−92 TO−92 Features LP SUFFIX LPRA, LPRE, LPRM,
• Programmable Output Voltage Range of 1.24 V to 16 V
CASE 29−10 LPRP SUFFIX CASE 29−10
• Voltage Reference Tolerance ±1.0% for A Series, ±0.5% for B Series and ±0.2% for C Series 4 • Sharp Low Current Turn−On Characteristic 5 Pin 1. NC
TSOP−5
• Low Dynamic Output Impedance of 0.20 W from 100 mA to 20 mA 2. NC
SN SUFFIX
3. Cathode
CASE 483
• Wide Operating Current Range of 50 mA to 20 mA 1 2 3 4. Reference • Micro Miniature TSOP−5, SOT−23−3 and TO−92−3 Packages 5. Anode • NCV and SCV Prefix for Automotive and Other Applications 3 Requiring Unique Site and Control Change Requirements; Pin 1. Reference
SOT−23
AEC−Q100 Qualified and PPAP Capable 2. Cathode
SN1 SUFFIX
1 3. Anode
CASE 318
• These are Pb−Free and Halide−Free Devices 2
Applications
• Low Output Voltage (3.0 V to 3.3 V) Switching Power Supply
ORDERING INFORMATION
Error Amplifier See detailed ordering and shipping information in the package • Adjustable Voltage or Current Linear and Switching Power Supplies dimensions section on page 14 of this data sheet. • Voltage Monitoring • Current Source and Sink Circuits
DEVICE MARKING INFORMATION
• Analog and Digital Circuits Requiring Precision References
AND PIN CONNECTIONS
• Low Voltage Zener Diode Replacements See general marking information in the device marking section on page 13 of this data sheet. Reference (R) Cathode (K) + - 1.24 Vref Anode (A)
Figure 1. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2000
1
Publication Order Number:
April, 2021 − Rev. 27 TLV431A/D