查询 AP432 供应商捷多邦, 专业 PCB 打样工厂,24 小时加急出货 Adjustable Precision Shunt Regulator Features - Precision reference voltage AP432 : 1.24V ± 1% AP432A : 1.24V

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2Ω - Programmable output voltage to 20v - Low output noise - Packages: SOT89, SOT23, SOT25, SOP8 and TO92 Ordering Information General Description The AP432/432A are 3-terminal adjustable precision

1 查询 AP432 供应商捷多邦, 专业 PCB 打样工厂,24 小时加急出货 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/ o C - 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 Ordering Information 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\/ (V REF ) 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. A P X X X X X Operating Temp. Range Blank : -20 o C~85 o C I : -40 o C~85 o C Reference Voltage Tolerance: Blank : 1.24V(/-) 1% A : 1.24V(/-) 0.5% Package Blank : SOP-8L Y : SOT89-3L V : TO92-3L W : SOT23-3L R : SOT23-3L Q : SOT25 Lead Free Blank : Normal L : Lead Free Package Packing Blank : Tube or bulk A : Taping Typical Application Circuit VIN VOUT Cin R1 Cout AP432 R2 VOUT = (1R1/R2)VREF Precision Regulator This datasheet contains new product information. 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.1.0 May.7, 2004

2 Block Diagram Symbol REF (R) Cathode (C) VREF V Cathode (C) REF (R) Anode (A) Anode (A) Pin Configuration Order Number Pin Configuration (Top View) Order Number Pin Configuration (Top View) AP432Y AP432 AY AP432IY AP432IAY (SOT89) 3 Cathode 2 Anode 1 REF AP432R AP432AR AP432IR AP432IAR (SOT23) Anode 1 3 Cathode 2 REF AP432V AP432 AV AP432IV AP432IAV (TO92) 3 Cathode 2 Anode 1 REF AP432W AP432AW AP432IW AP432IAW (SOT23) Anode 1 3 REF 2 Cathode AP432 AP432A AP432I AP432IA (SOP) Cathode 1 8 REF Anode 2 7 Anode Anode 3 6 Anode NC 4 5 NC AP432 Q AP432 AQ AP432IQ AP432IAQ (SOT25) NC 1 NC 2 Cathode 3 5 Anode 4 REF

3 Marking Information (1) SOT23 / SOT25 / SOT89 P/N Type AP432Y AP432AY AP432IY AP432IAY AP432W AP432AW AP432IW AP432IAW AP432R AP432AR AP432IR AP432IAR AP432Q AP432AQ AP432IQ AP432IAQ X X B1 B2 BA BB B3 B4 BC BD B5 B6 BE BF B7 B8 BG BH SOT23/SOT25 XX YM X (Top View) XX: P/N Type Date code Y : Year M : Month(A~L) SOT89 XX YMX X: Blank : normal L : Lead Free Package (2) SOP Logo Date code YY : Year WW: Nth week ( Top view ) AC AP432X X YYWW X Lead Free Blank: normal L: Lead Free Package Blank: -20 o C ~ 85 o C I : -40 o C ~ 85 o C Blank: A : Temp. grade Accuracy 1.24 ± 1% 1.24 ± 0.5% (3) TO92 Accuracy Blank: 1.24 ± 1% A : 1.24 ± 0.5% ( Top view ) AP432X X YWW X X Temp. grade Blank: -20 o C ~ 85 o C I : -40 o C ~ 85 o C Date code Y : Year WW: Nth week Internal code Lead Free Blank: normal L: Lead Free Package

4 Absolute Maximum Ratings Cathode Voltage V Continuous cathode current ma ~ 250mA Reference input current range mA Operating temperature range (AP432) -20 o C ~ 85 o C (AP432I o C~85 o C Lead Temperature o C Storage Temperature o C ~ 150 o C Power Dissipation (Notes 1. 2) Note 1: TJ, max =150 o C.. Note 2: Ratings apply to ambient temperature at 25 o C. SOT W TO W SOT W SOT W SOP W Electrical Characteristics (Ta=25 o C, unless otherwise specified.) Parameter Test conditions Symbol Min. Typ. Max. Unit V KA = Vref, AP Reference voltage I KA = 10mA V REF 1.24 V AP432A (Fig.1) Deviation of reference input voltage V KA = V REF, I KA = 10mA, over temperature (Note 3) Ta = full range (Fig.1) V REF mv Ratio of the change in reference I voltage to the change in cathode KA = 10mA V REF V (Fig.2) KA = 20 ~V REF V voltage KA mv/v Reference input current R1 = 10KΩ,R2 = I KA = 10mA (Fig.2) I REF µa R1 = 10KΩ,R2 = Deviation of reference input current I over temperature KA = 10mA Ta = Full range (Fig.2) αi REF µa Minimum cathode current for regulation V KA = V REF (Fig.1) I KA(min) ma Off-state current V KA = 20V, V REF = 0V (Fig.3) I KA(off) µa V KA = V REF Dynamic output impedance (Note 4) I KA = 0.1mA ~ 15mA Z Ω KA Frequency 1KHz (Fig.1)

5 VMAX VDEV = VMAX - VMIN VMIN TI TEMPERATURE T2 Note 3. Deviation of reference input voltage, V DEV, is defined as the maximum variation of the reference over the full temperature range. The average temperature coefficient of the reference input voltage αv REF is defined as: VDEV 6 ( ) 10 VREF (25 C) α VREF =.... ( ppm ) C T2 T1 Where: T2 T1 = full temperature change. αv REF can be positive or negative depending on whether the slope is positive or negative. Note 4. The dynamic output impedance, R Z, is defined as: VKA Z KA = IKA When the device is programmed with two external resistors R1 and R2 (see Figure 2.), the dynamic output impedance of the overall circuit, is defined as: Test Circuits ' v ZKA = ZKA ( 1 i R1 ) R2 Input IN IN I KA V KA I KA V KA V KA R1 IREF VREF R2 VREF IZ(OFF) V KA = V REF (1 R1 ) I R2 REF R1 Fig1. Test Circuit for V KA = V REF Fig2. Test circuit for V KA >V REF Fig3. Test Circuit for off-state Current

6 Typical Performance Characteristics AV-Small Signal Voltage Amplification (db) SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY I KA =10mA T A =25 o C 1K 10K 100K 1M 10M f-frequency-hz 9µF - 15KΩ 8.25KΩ I KA - 232Ω Output GND TEST CIRCUIT FOR VOLTAGE AMPLIFICATION ZKA Reference Impedance Ω REFERENCE IMPEDANCE vs. FREQUENCY I KA =10mA T A =25 o C 0.1 1K 10K 100K 1M 10M f-frequency-hz 1KΩ Output I KA 50Ω - GND TEST CIRCUIT FOR REFERENCE IMPEDANCE IKA-Cathode Current-mA STABILITY BOUNDARY CONDITIONS A V KA =V ref B V KA =5V C V KA =10V D V KA =15V Stable A B D C TA=25 o C Stable 150O I KA V BATT CL - TEST CIRCUIT FOR CURVE A I KA R1=10KO 150O C L -Load Capacitance-µF C L R2 - V BATT The areas under the curves represent conditions that may cause the device to oscillate. For curves B, C, and D, R2 and V were adjusted to establish the initial V KA and I KA conditions with C L =0.V BATT and C L were then adjusted to determine the ranges of stability. TEST CIRCUIT FOR CURVE B, C, AND D

7 Application Examples V IN VIN RCL IOUT R1A R1B R VIN R2A R2B OFF ON LED on when Low Limit<V IN<High Limit Low Limit V REF (1R1B/R2B) High Limit V REF (1R1A/R2A) Fig.4 Voltage Monitor V IN Delay = RC x ln( VIN -V REF ) Fig.5 Delay Timer IOUT = VREF / RCL Fig.6 Current Limiter or Current Source VIN IOUT VIN VOUT VIN PUSE VOUT R1 R1 RS R2 R2 IOUT = VREF / RS VOUT = (1 R1/R2) V REF LIMIT (1 R1/R2) V REF Fig.7 Constant-Current Sink Fig.8 Higher-Current Shunt Regulator Fig.9 Crow Bar VIN R1A R1B Output ON when Low Limint <VIN<High Limit R2A R2B VBE Low Limit High Limit VREF(1 R1B/R2B) VBE VREF(1 R1A/R2A) Fig.10 Over-Voltage / Under-Voltage Protection Circuit

8 Package Diagrams (1) SOT89-3L Package Outline Dimension D1 L HE E 8 0 (2x) e1 e D 5 0 (2x) c A b b1 b Symbol Dimensions In Millimeters Dimensions In Inches Min. Nom. Max. Min. Nom. Max. A b b C D D e e E HE L

9 (2) TO92-3L Package Outline Dimension A A1 D b b1 b e E L Symbol Dimensions In Millimeters Dimensions In Inches Min. Nom. Max. Min. Nom. Max. A A b b D E L e

10 (3) SOT23-5L Package Outline Dimension D 5 e1 4 θ1(4x) E1 E A A C 5x A1 θ2(4x) Seating Plane e b With Plating b1 C C1 Gauge Plane 0.25 mm Base Metal b L L1 θ Symbol Dimensions In Millimeters Dimensions In Inches Min. Nom. Max. Min. Nom. Max. A A A b b c c D E E L L Ref Ref. e 0.95 Bsc Bsc. e Bsc Bsc. θ 0 o 5 o 10 o 0 o 5 o 10 o θ1 3 o 5 o 7 o 3 o 5 o 7 o θ2 6 o 8 o 10 o 6 o 8 o 10 o

11 (4) SOT23-3L Package Outline Dimension 2 E HE 1 3 e D A2 A b A1 C L Symbol Dimensions In Millimeters Dimensions In Inches Min. Nom. Max. Min. Nom. Max. A A A b C D E e HE L

12 (5) SOP-8L Package Outline Dimension E H L VIEW "A" 7 (4X) D 0.015x45 7 (4X) A2 A e B A1 y C VIEW "A" Symbol Dimensions In Millimeters Dimensions In Inches Min. Nom. Max. Min. Nom. Max. A A A B C D E e H L y θ 0 O - 8 O 0 O - 8 O

13 Taping Information (1)TO92 TAPING M h Ho A T Do Po F2 F1 Symbol Millimeters Inches Min. Typ. Max. Min. Typ. Max. Po M Ho Do A Δh T F F

14 40mm 205mm E 330mm 90 ±1mm 30 ±1mm 53 ±2mm 45mm 76 ±1mm 360 ±2mm

15 (2) TO92 TAPING H2 H2 H2A H2A D2 A H3 L L1 H1 H4 H W1 W D T2 T T1 F1 F2 P1 P P2 D1 Symbol Millimeters Inches Min. Typ. Max. Min. Typ. Max. A D D D F1,F F1-F ± H H H H2A H H L L P P P T T T W W * * = every 20 pcs distance.

16 BOX Dimension unit:mm.

Microsoft Word - LR1122B-B.doc

Microsoft Word - LR1122B-B.doc UNISONIC TECHNOLOGIES CO., LTD LOW NOISE ma LDO REGULATOR DESCRIPTION The UTC is a typical LDO (linear regulator) with the features of High output voltage accuracy, low supply current, low ON-resistance,

查询 AP432 供应商 捷多邦, 专业 PCB 打样工厂,24 小时加急出货 Adjustable Precision Shunt Regulator Features - Precision reference voltage AP432 : 1.24V ± 1% AP432A : 1.24V

查询 AP432 供应商捷多邦, 专业 PCB 打样工厂,24 小时加急出货 Adjustable Precision Shunt Regulator Features - Precision reference voltage AP432 : 1.24V ± 1% AP432A : 1.24V