AP432_AP432A资料
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Adjustable Precision Shunt Regulator AP432/AP432A
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.1.1 Sep.23, 2004 1/16 Features - Precision reference voltage AP432 : 1.24V ± 1% AP432A : 1.24V ± 0.5% - Sink current capability: 200mA. - Minimum cathode current for regulation: 150µA - Equivalent full-range temp coefficient: 30 ppm/oC - Fast turn-on Response. - Low dynamic output impedance: 0.2Ω - Programmable output voltage to 20v - Low output noise - Packages: SOT89, SOT23, SOT25, SOP8 and TO92 General Description The AP432/432A are 3-terminal adjustable precision shunt regulators with guaranteed stable temperature over the applicable extended commercial temperature range. The output voltage may be set at any level greater than 1.24\/ (VREF) up to 20V merely by selecting two external resistors that act as a voltage divider network. These devices have a typical output impedance of 0.2Ω. Active output circuitry provides very sharp turn-on characteristics, making these devices excellent improved replacements for Zener diodes in many applications. The precise +/- 1% reference voltage tolerance of the AP432/432A make it possible in many applications to avoid the use of a variable resistor, consequently saving cost and eliminating drift and reliability problems associated with it. Ordering Information A P 4 3 2 X X X X X
PackagePackingBlank : Tube or bulkA : TapingReference VoltageOperating Temp. RangeBlank : SOP-8LY : SOT89-3LV : TO92-3LW : SOT23-3LR : SOT23-3LQ : SOT25Blank : -20oC~85oC I : -40oC~85oCLead FreeBlank : NormalL : Lead Free PackageTolerance:Blank : 1.24V(+/-) 1%A : 1.24V(+/-) 0.5%
Typical Application Circuit
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R2R1VOUTVIN
VOUT = (1+R1/R2)VREFPrecision RegulatorCinCoutAP432
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Adjustable Precision Shunt Regulator AP432/AP432A
Anachip Corp. www.anachip.com.tw Rev.1.1 Sep.23, 2004 2/16 Block Diagram REF (R)
VREF+-
Anode (A)Cathode (C)1.24V
Symbol Cathode (C)
REF (R)
Anode (A) Pin Configuration Order NumberPin Configuration (Top View)AP432YAP432AYAP432IYAP432IAY(SOT89)
AP432VAP432AVAP432IVAP432IAV(TO92)Order Number
AP432RAP432ARAP432IRAP432IAR(SOT23)
AP432WAP432AWAP432IWAP432IAW(SOT23)1 REF2 Anode3 Cathode
1 REF2 Anode+++3 CathodeAnode 12 Cathode3 REFAnode 12 REF3 Cathode
Cathode 1Anode 2Anode 3NC 45 NC6 Anode7 Anode8 REFAP432AP432AAP432IAP432IA(SOP)Pin Configuration (Top View)
AP432QAP432AQAP432IQAP432IAQ(SOT25)NC 1
4 REFNC 2Cathode 35 Anode
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Adjustable Precision Shunt Regulator AP432/AP432A
Anachip Corp. www.anachip.com.tw Rev.1.1 Sep.23, 2004 3/16 Marking Information (1) SOT23 / SOT25 / SOT89 P/N Type X X AP432Y B1 AP432AY B2 AP432IY BA AP432IAY BB AP432W B3 AP432AW B4 AP432IW BC AP432IAW BD AP432R B5 AP432AR B6 AP432IR BE AP432IAR BF AP432Q B7 AP432AQ B8 AP432IQ BG AP432IAQ BH
XXYMXSOT23/SOT25XXYMXSOT89
Date codeY:YearM : Month(A~L)XX: P/N Type(Top View)
X: Blank : normal L : Lead Free Package (2) SOP
Accuracy AP432X X YYWW X
Blank:A :Logo( Top view )
1%1.24±0.5%1.24±Blank: -20oC ~ +85oCI : -40oC ~ +85oCYY : YearWW: Nth weekDate codeTemp. grade
Lead FreeBlank: normalL: Lead Free Package (3) TO92
Accuracy AP432X X YWW X XBlank:A :( Top view )
Y : YearWW: Nth weekDate codeInternal codeTemp. grade
1%1.24±0.5%1.24±Blank: -20oC ~ +85oCI : -40oC ~ +85oC
Blank: normalL: Lead Free PackageLead Free
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Adjustable Precision Shunt Regulator AP432/AP432A
Anachip Corp. www.anachip.com.tw Rev.1.1 Sep.23, 2004 4/16 Absolute Maximum Ratings Cathode Voltage……………....……...........…..........……………………………………...……….20V Continuous cathode current ………………………………......................……………………...-10mA ~ 250mA Reference input current range ………………………...….………....................………………………………10mA Operating temperature range (AP432) ……………………………………………………………… -20oC ~ 85oC (AP432I……………..…..…............……………………………..……. -40oC~85oC Lead Temperature……………….…………….…..……………………..………………..……........260oC Storage Temperature ……………………..............…......………………….......……...........-65oC ~ 150oC Power Dissipation (Notes 1. 2) SOT89 .……………..……..……………………...........….... 0. 80W TO92.....…………….………………………....……….. ..... 0.78W SOT23 …………………..…..…………………………….…. 0.25W SOT25...……………………..………….……………………..0.25W SOP...………………….……………………………..……… 0.6W Note 1: TJ, max =150oC. . Note 2: Ratings apply to ambient temperature at 25oC. Electrical Characteristics (Ta=25oC, unless otherwise specified.) Parameter Test conditions Symbol Min. Typ. Max.UnitAP432 1.2271.252Reference voltage VKA = Vref, I KA = 10mA (Fig.1) AP432A VREF 1.2331.24 1.246V Deviation of reference input voltage over temperature (Note 3) VKA = VREF , IKA = 10mA , Ta = full range (Fig.1) VREF 3.0 20 mV Ratio of the change in reference voltage to the change in cathode voltage IKA = 10mA (Fig.2) VKA = 20 ~VREFKAREFVV∆∆ -1.4 -2.0 mV/V
