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 www.onsemi.com 1.0% at 25C and 2.0% over the entire industrial temperature range of 40C to 85C. 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 turnon characteristic with a low dynamic impedance of 0.20 over an operating current range of 100 A 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 1 1 3. Cathode reference voltage. When combined with an optocoupler, the 2 2 3 3 TLV431A/B/C can be used as an error amplifier for controlling the STRAIGHT LEAD BENT LEAD feedback loop in isolated low output voltage (3.0 V to 3.3 V) switching BULK PACK TAPE & REEL power supplies. These devices are available in economical TO923 and AMMO PACK micro size TSOP5 and SOT233 packages. TO92 TO92 LP SUFFIX LPRA, LPRE, LPRM, Features CASE 2910 LPRP SUFFIX Programmable Output Voltage Range of 1.24 V to 16 V CASE 2910 Voltage Reference Tolerance 1.0% for A Series, 0.5% for B Series and 0.2% for C Series 4 Pin 1. NC TSOP5 Sharp Low Current TurnOn Characteristic 5 2. NC SN SUFFIX Low Dynamic Output Impedance of 0.20 from 100 A to 20 mA 3 3. Cathode CASE 483 2 1 4. Reference Wide Operating Current Range of 50 A to 20 mA 5. Anode Micro Miniature TSOP5, SOT233 and TO923 Packages NCV and SCV Prefix for Automotive and Other Applications 3 SOT23 Pin 1. Reference Requiring Unique Site and Control Change Requirements SN1 SUFFIX 2. Cathode AECQ100 Qualified and PPAP Capable 1 3. Anode CASE 318 These are PbFree and HalideFree 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 dimensions section on page 14 of this data sheet. Adjustable Voltage or Current Linear and Switching Power Supplies Voltage Monitoring Current Source and Sink Circuits DEVICE MARKING INFORMATION Analog and Digital Circuits Requiring Precision References AND PIN CONNECTIONS See general marking information in the device marking Low Voltage Zener Diode Replacements section on page 13 of this data sheet. Cathode (K) Reference (R) + - 1.24 V ref Anode (A) Figure 1. Representative Block Diagram Semiconductor Components Industries, LLC, 2000 1 Publication Order Number: April, 2021 Rev. 27 TLV431A/DTLV431, NCV431, SCV431 Cathode (K) Reference (R) Cathode (K) Reference (R) Anode (A) Device Symbol Anode (A) The device contains 13 active transistors. Figure 2. Representative Device Symbol and Schematic Diagram MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted) Rating Symbol Value Unit Cathode to Anode Voltage V 18 V KA Cathode Current Range, Continuous I 20 to 25 mA K Reference Input Current Range, Continuous I 0.05 to 10 mA ref Thermal Characteristics C/W LP Suffix Package, TO923 Package Thermal Resistance, JunctiontoAmbient 178 R JA Thermal Resistance, JunctiontoCase 83 R JC SN Suffix Package, TSOP5 Package Thermal Resistance, JunctiontoAmbient 226 R JA SN1 Suffix Package, SOT233 Package Thermal Resistance, JunctiontoAmbient 491 R JA Operating Junction Temperature T 150 C J Operating Ambient Temperature Range TLV431 T 40 to 85 C A NCV431, SCV431 40 to 125 Storage Temperature Range T 65 to 150 C stg Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. NOTE: This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per JEDEC JESD22A114F, Machine Model Method 200 V per JEDEC JESD22A115C, Charged Device Method 1000 V per JEDEC JESD22C101E. This device contains latchup protection and exceeds 100 mA per JEDEC standard JESD78. T T J(max) A P D R JA RECOMMENDED OPERATING CONDITIONS Condition Symbol Min Max Unit Cathode to Anode Voltage V V 16 V KA ref Cathode Current I 0.1 20 mA K Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. www.onsemi.com 2