UNISONIC TECHNOLOGIES CO., LTD TL432C LINEAR INTEGRATED CIRCUIT 1.24V PRECISION ADJUSTABLE SHUNT REFERENCE REGULATORS DESCRIPTION The UTC TL432C is a three-terminal adjustable shunt regulator highly accurate 1.24V band gap reference with 1%, 2% tolerance. The device offers thermal stability, wide operating current (50mA) and an extended temperature range of 0° to 85°C for operation in power supply applications. The UTC TL432C offers a wide operating voltage range of up to 12V and is an excellent choice for voltage reference requirements in an isolated feedback circuit for 3.0V ~ 3.3V switching mode power supplies. The tight tolerance guarantees a lower design cost for the power supply manufacturer by virtually eliminating the need for an extra power supply manufacturing process of the power supply. FEATURES *Temperature-Compensated: 50ppm/°C *Internal Amplifier with 50mA Capability *Nominal Temperature Range Extended to 85°C *Low Frequency Dynamic Output Impedance:<150mΩ *Low Output Noise ORDERING INFORMATION Ordering Number Lead Free Halogen Free 1 2 TL432CL-AB3-R TL432CG-AB3-R R A TL432CL-AE3-R TL432CG-AE3-R K R TL432CL-AF5-R TL432CG-AF5-R X X TL432CL-T92-B TL432CG-T92-B R A TL432CL-T92-K TL432CG-T92-K R A TL432CL-S08-R TL432CG-S08-R K A Note: Pin Code: C: Cathode A: Anode R: Reference www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Pin Assignment 3 4 5 6 7 K A K R A K K A X X A A X: No Connection 8 R Package Packing SOT-89 SOT-23 SOT-25 TO-92 TO-92 SOP-8 Tape Reel Tape Reel Tape Reel Tape Box Bulk Tape Reel 1 of 3 QW-R103-022.G TL432C LINEAR INTEGRATED CIRCUIT MARKING INFORMATION PACKAGE MARKING 3 432C SOT-23 L: Lead Free G: Halogen Free 2 3 SOT-25 2 1 432C 4 1 L: Lead Free G: Halogen Free 5 BLOCK DIAGRAM CATHODE(K) + - REFERENCE(R) + - 1.24V ANODE(A) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 3 QW-R103-022.G TL432C LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Cathode-Anode Reverse Breakdown VKA 15 V Anode-Cathode Forward Current IAK 1 A Operating Cathode Current IKA 50 mA Reference Input Current IREF 1 mA Junction Temperature TJ 125 °C Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -40 ~ +150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENDED OPERATING CONDITIONS PARAMETER Cathode Voltage Cathode Current RATINGS VREF ~ 15 5 ~ 10 UNIT V mA SYMBOL RATING 350 100 150 220 UNIT °C/W °C/W °C/W °C/W THERMAL DATA PARAMETER SOT-23/SOT-25 TO-92 Junction to Ambient SOP-8 SOT-89 SYMBOL VKA IK θJA ELECTRICAL CHARACTERISTICS (TJ=25°C , VKA=VREF, IK=10mA, unless otherwise specified.) PARAMETER Reference Input Voltage SYMBOL 1% 2% Line Regulation Load Regulation Temperature Deviation Reference Input Current Reference Input Current Temperature Coefficient Minimum Cathode Current for Regulation Off State Leakage VREF TEST CONDITIONS IK=10mA, VK=VREF ΔVREF ΔVREF ΔVREF IREF VK=1.24 ~ 15V IK=5 ~ 50mA -40<TJ<85°C ΔIREF -40<TJ<85°C IK(MIN) IKA(OFF) VREF=0V, VKA=15V MIN TYP MAX UNIT 1.228 1.240 1.252 V 1.215 1.240 1.265 V 10 26 mV 6 15 mV 2 6 mV 3 6 μA 0.3 0.6 μA 0.6 1 500 mA nA UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 3 QW-R103-022.G