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 Pin 1. Reference combination of features makes this series an excellent replacement for 2. Anode 1 zener diodes in numerous applications circuits that require a precise 3. Cathode 1 2 2 3 3 reference voltage. When combined with an optocoupler, the STRAIGHT LEAD BENT LEAD TLV431A/B/C can be used as an error amplifier for controlling the BULK PACK TAPE & REEL feedback loop in isolated low output voltage (3.0 V to 3.3 V) switching AMMO PACK power supplies. These devices are available in economical TO923 and TO92 TO92 micro size TSOP5 and SOT233 packages. LP SUFFIX LPRA, LPRE, LPRM, CASE 2911 LPRP SUFFIX Features CASE 2911 Programmable Output Voltage Range of 1.24 V to 16 V Voltage Reference Tolerance 1.0% for A Series, 0.5% for B Series 4 and 0.2% for C Series Pin 1. NC TSOP5 5 2. NC SN SUFFIX Sharp Low Current TurnOn Characteristic 3 3. Cathode CASE 483 2 Low Dynamic Output Impedance of 0.20 from 100 A to 20 mA 1 4. Reference 5. Anode Wide Operating Current Range of 50 A to 20 mA Micro Miniature TSOP5, SOT233 and TO923 Packages 3 SOT23 NCV and SCV Prefix for Automotive and Other Applications Pin 1. Reference 2. Cathode SN1 SUFFIX Requiring Unique Site and Control Change Requirements 1 3. Anode CASE 318 AECQ100 Qualified and PPAP Capable 2 These are PbFree and HalideFree Devices Applications ORDERING INFORMATION Low Output Voltage (3.0 V to 3.3 V) Switching Power Supply See detailed ordering and shipping information in the package Error Amplifier dimensions section on page 14 of this data sheet. Adjustable Voltage or Current Linear and Switching Power Supplies Voltage Monitoring DEVICE MARKING INFORMATION Current Source and Sink Circuits AND PIN CONNECTIONS Analog and Digital Circuits Requiring Precision References See general marking information in the device marking section on page 13 of this data sheet. Low Voltage Zener Diode Replacements Cathode (K) Reference (R) + - 1.24 V ref Anode (A) Figure 1. Representative Block Diagram Semiconductor Components Industries, LLC, 2000 1 Publication Order Number: January, 2020 Rev. 26 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