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UNISONIC TECHNOLOGIES CO., LTD TL432
1.25V PRECISION ADJUSTABLE SHUNT REFERENCE REGULATORS
DESCRIPTION
The UTC TL432 is a three-terminal adjustable shunt regulator highly accurate 1.25V bandgap reference with 1%, 2% tolerance. The device offers thermal stability, wide operating current (50mA) and an extended temperature range of 0 to 105C for operation in power supply applications. The UTC TL432 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 quarantees 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.
LINEAR INTEGRATED CIRCUIT
1
1 SOT-89 TO-92
3 1
SOP-8 3 2
2
1
SOT-23
5 4 SOT-25
*Pb-free plating product number: TL432L
FEATURES
*Temperature-Compensated:50ppm/C *Internal amplifier with 50mA capability *Nominal temperature range extended to 105C *Low frequency dynamic output impedance:<150 *Low output noise
ORDERING INFORMATION
Order Number PIN CODE Package Normal Lead Free Plating 12345678 TL432-AB3-R TL432L-AB3-R RAK- - - - SOT-89 TL432-AE3-R TL432L-AE3-R KRA- - - - SOT-23 TL432-AF5-R TL432L-AF5-R XXKRA- - SOT-25 TL432-T92-B TL432L-T92-B RAK- - - - TO-92 TL432-T92-K TL432L-T92-K RAK- - - - TO-92 TL432-S08-R TL432L-S08-R KAAXXAAR SOP-8 TL432-S08-T TL432L-S08-T KAAXXAAR SOP-8 Note: Pin Code: C: Cathode A: Anode R: Reference X: No Connection TL432L-AB3-R (1)Packing Type (2)Package Type (3)Lead Plating Packing Tape Reel Tape Reel Tape Reel Tape Box Bulk Tape Reel Tube
(1) B: Tape Box, K: Bulk, R: Tape Reel, T: Tube (2) AB3: SOT-89, AE3: SOT-23, AF3: SOT-25, S 08: SOP-8, T92: TO-92 (3) L: Lead Free Plating Blank: Pb/Sn ,
www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd
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MARKING INFORMATION
PACKAGE MARKING
3 432 2 1
LINEAR INTEGRATED CIRCUIT
SOT-23
3
2
1
SOT-25
432 4 5
BLOCK DIAGRAM
CATHODE(K)
REFERENCE(R)
+ + -
1.25V
ANODE(A)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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TL432
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL VALUE 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 0 ~ +70 C Storage Temperature TSTG -40 ~ +150 C Note 1. 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. 2. The device is guaranteed to meet performance specification within 0 ~+70 operating temperature range and assured by design from -20 ~+85 .
RECOMMENDED OPERATING CONDITIONS
PARAMETER Cathode Voltage Cathode Current SYMBOL VKA IK MIN VREF 5 TYP 10 MAX 15 UNIT V mA
TYPICAL THERMAL DATA
PARAMETER SYMBOL PACKAGE TO-92 SOP-8 SOT-89 JA SOT-23 SOT-25 RATING 100 150 220 350 350 UNIT
Thermal Resistance Junction to Ambient
C/W
ELECTRICAL CHARACTERISTICS (TJ=25C, VKA=VREF, IK=10mA, unless otherwise specified.)
PARAMETER Refer Input Voltage 1% 2% SYMBOL VREF VREF VREF VREF IREF IREF IK(MIN) IKA(OFF) VREF=0V,VKA=15V TEST CONDITIONS IK=10mA, VK=VREF VK=1.25 ~ 15V IK=5 ~ 50mA 0< TJ<105C 0< TJ<105C MIN 1.237 1.225 TYP MAX UNIT 1.250 1.263 V 1.250 1.275 V 10 15 mV 6 15 mV 2 6 mV 3 6 A 0.3 0.6 A 0.6 1 500 mA nA
Line Regulation Load Regulation Temperature Deviation Reference Input Current Reference Input Current Temperature Coefficient Minimum Cathode Current for Regulation Off State Leakage
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
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