TL431A HTC Korea

PROGRAMMABLE PRECISION SHUNT REGULATOR TL431/A/C FEATURES TO-92 PKG z Programmable Output Voltage to 40V z Guaranteed 0.5% Reference Voltage Tolerance z Low (0.2 Typ.) Dynamic Output Impedance 3 T z Cathode Current Range(Continuous) 100 ~ 150 mA 2 O P z Equivalent Full Range Temperature Coefficient of 1 50PPM/ z Temperature Compensated For Operation Over Full Rate Operating Temperature Range SOT-23 PKG z Low Output Noise Voltage z Fast Turn-on Response 2 z TO-92, SOT-89 or SOT-23 3L Package TOP APPLICATION 1 3 z Shunt Regulator z Precision High-Current Series Regulator z High-Current Shunt Regulator SOT-89 PKG z Crowbar Circuit z PWM Converter With Reference z Voltage Monitor TOP z Precision Current Limiter 1 2 3 DESCRIPSION The TL431 is a three-terminal adjustable shunt regulator PIN 1. Reference 2. Anode 3. Cathode with specified thermal stability over applicable temperature V (Approx. 2.5V) and 40V with two REF ORDERING INFORMATION external resistors. This device has a typical dynamic Device Package output impedance of 0.2 . Active output circuitry provides TL431 TO-92(Bulk) a very sharp turn-on characteristic, making this device TL431TA TO-92(Taping) excellent replacement for zener diodes in many TL431SF SOT-23 3L applications. The TL431 is characterized for operation TL431F SOT-89 3L from -40 to +125. * Refer to the page 2 for detailed ordering Information, Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified) CHARACTERISTIC SYMBOL MIN. MAX. UNIT Cathode Voltage V - 42 V KA Cathode Current Range(Continuous) I -100 150 mA K Reference Input Current Range I -0.05 10 mA REF Junction Temperature Range T -40 150 J Operating Temperature Range T -40 125 OPR Storage Temperature Range T -65 150 STG Dec. 2010 Rev.1.5 - 1 - HTC PROGRAMMABLE PRECISION SHUNT REGULATOR TL431/A/C RECOMMENDED OPERATING CONDITIONS CHARACTERISTIC SYMBOL MIN. MAX. UNIT Cathode Voltage V V 40 V KA REF Cathode Current I 0.5 100 mA K Ordering Information V Package Tolerance Order No. Package Marking Supplied As REF TL431C TL431-C Bulk TL431GC TL431GC 0.5% TL431CTA TL431-C Tape TL431GCTA TL431GC TL431A TL431-A Bulk TL431GA TL431GA TO-92 1% TL431ATA TL431-A Tape TL431GATA TL431GA TL431 TL431 Bulk TL431G TL431G 2% 2.495V TL431TA TL431 Tape TL431GTA TL431G TL431CSF 431 0.5% Reel TL431GCSF 431 TL431ASF 431 SOT-23 1% Reel TL431GASF 431 TL431SF 431 2% Reel TL431GSF 431 0.5% TL431CF 431 Reel SOT-89 1% TL431AF 431 Reel 2% TL431F 431 Reel Dec. 2010 Rev.1.5 - 2 - HTC