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 4 3 2 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
Block Diagram Symbol REF (R) Cathode (C) VREF - 1.24V 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
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
Absolute Maximum Ratings Cathode Voltage.............20V Continuous cathode current......-10ma ~ 250mA Reference input current range....... 10mA Operating temperature range (AP432) -20 o C ~ 85 o C (AP432I.......... -40 o C~85 o C Lead Temperature...........260 o C Storage Temperature............-65 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. SOT89........... 0. 80W TO92............ 0.78W SOT23...... 0.25W SOT25........0.25W SOP...... 0.6W Electrical Characteristics (Ta=25 o C, unless otherwise specified.) Parameter Test conditions Symbol Min. Typ. Max. Unit V KA = Vref, AP432 1.227 1.252 Reference voltage I KA = 10mA V REF 1.24 V AP432A 1.233 1.246 (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 3.0 20 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 -1.4-2.0 mv/v Reference input current R1 = 10KΩ,R2 = I KA = 10mA (Fig.2) I REF 1.4 3.5 µa R1 = 10KΩ,R2 = Deviation of reference input current I over temperature KA = 10mA Ta = Full range (Fig.2) αi REF 0.4 1.2 µa Minimum cathode current for regulation V KA = V REF (Fig.1) I KA(min) 0.15 0.3 ma Off-state current V KA = 20V, V REF = 0V (Fig.3) I KA(off) 0.1 1.0 µa V KA = V REF Dynamic output impedance (Note 4) I KA = 0.1mA ~ 15mA Z 0.2 0.5 Ω KA Frequency 1KHz (Fig.1)
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
Typical Performance Characteristics AV-Small Signal Voltage Amplification (db) SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY 60 50 40 30 20 10 0 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 100 10 1 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 100 90 80 70 60 50 40 30 20 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 10 0 0.001 0.01 0.1 1 10 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
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
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 1.40 1.50 1.60 0.055 0.059 0.063 b 0.36 0.42 0.48 0.014 0.016 0.018 b1 0.41 0.47 0.53 0.016 0.043 0.051 C 0.35 0.39 0.43 0.014 0.015 0.017 D 4.40 4.50 4.60 0.173 0.177 0.181 D1 1.40 1.60 1.75 0.055 0.062 0.069 e 2.90 3.00 3.10 0.114 0.118 0.122 e1 1.45 1.50 1.55 0.057 0.059 0.061 E 2.40 2.50 2.60 0.094 0.098 0.102 HE 3.94-4.25 0.155-0.167 L 0.80-1.20 0.031-0.047
(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 3.302 3.556 3.810 0.130 0.140 0.150 A1 1.016 - - 0.040 - - b 0.330 0.381 0.432 0.013 0.015 0.017 b1 0.406 0.457 0.506 0.016 0.018 0.020 D 4.445 4.572 4.699 0.175 0.180 0.185 E 4.445 4.572 4.699 0.175 0.180 0.185 L 13.00-15.500 0.512-0.610 e 1.150 1.270 1.390 0.045 0.050 0.055
(3) SOT23-5L Package Outline Dimension D 5 e1 4 θ1(4x) E1 E A A2 0.10 C 5x 1 2 3 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 1.05 1.20 1.35 0.041 0.047 0.053 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 1.00 1.10 1.20 0.039 0.043 0.047 b 0.25-0.55 0.010-0.022 b1 0.25 0.40 0.45 0.010 0.016 0.018 c 0.08-0.20 0.003-0.008 c1 0.08 0.11 0.15 0.003 0.004 0.006 D 2.70 2.85 3.00 0.106 0.112 0.118 E 2.60 2.80 3.00 0.102 0.110 0.118 E1 1.50 1.60 1.70 0.059 0.063 0.067 L 0.35 0.45 0.55 0.014 0.018 0.022 L1 0.60 Ref. 0.024 Ref. e 0.95 Bsc. 0.037 Bsc. e1 1.90 Bsc. 0.075 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
(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 1.00 1.20 1.40 0.039 0.047 0.055 A1 0.00-0.10 0.000-0.004 A2 1.00 1.15 1.30 0.039 0.045 0.051 b 0.35-0.50 0.014-0.020 C 0.10 0.175 0.25 0.004 0.007 0.010 D 2.70 2.90 3.10 0.106 0.114 0.122 E 1.40 1.60 1.80 0.055 0.063 0.071 e 1.70 2.00 2.30 0.067 0.079 0.091 HE 2.40 2.70 3.00 0.094 0.106 0.118 L 0.30-0.55 0.012-0.022
(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 1.40 1.60 1.75 0.055 0.063 0.069 A1 0.10-0.25 0.040-0.100 A2 1.30 1.45 1.50 0.051 0.057 0.059 B 0.33 0.41 0.51 0.013 0.016 0.020 C 0.19 0.20 0.25 0.0075 0.008 0.010 D 4.80 5.05 5.30 0.189 0.199 0.209 E 3.70 3.90 4.10 0.146 0.154 0.161 e - 1.27 - - 0.050 - H 5.79 5.99 6.20 0.228 0.236 0.244 L 0.38 0.71 1.27 0.015 0.028 0.050 y - - 0.10 - - 0.004 θ 0 O - 8 O 0 O - 8 O
Taping Information (1)TO92 TAPING M h Ho A T Do Po F2 F1 Symbol Millimeters Inches Min. Typ. Max. Min. Typ. Max. Po 12.4 12.7 13.0 0.488 0.500 0.512 M 2.0 2.5 3.0 0.079 0.098 0.118 Ho 15.5 16.0 16.5 0.610 0.630 0.650 Do - 4.0 - - 0.157 - A - 6.0 - - 0.236 - Δh 0.0-1.0 0.000-0.039 T - 18.0 - - 0.709 - F1 2.4 2.5 2.9 0.094 0.098 0.114 F2 2.4 2.5 2.9 0.094 0.098 0.114
40mm 205mm E 330mm 90 ±1mm 30 ±1mm 53 ±2mm 45mm 76 ±1mm 360 ±2mm
(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 3.18 7.59 12 0.125 0.299 0.472 D 3.8 4 4.2 0.150 0.157 0.165 D1 0.36 0.445 0.53 0.014 0.018 0.021 D2 - - 9.0 - - 0.354 F1,F2 2.4 2.5 2.7 0.094 0.098 0.106 F1-F2-0.30 - - ±0.012 - H 15.5 16 16.5 0.610 0.630 0.650 H1 8.5 9 9.5 0.335 0.354 0.374 H2 - - 0.5 - - 0.020 H2A - - 0.5 - - 0.020 H3 - - 27 - - 1.063 H4 - - 20 - - 0.787 L - - 11 - - 0.433 L1 2.5 - - 0.098 - - P 12.5 12.7 12.9 0.492 0.500 0.508 P1 5.95 6.35 6.75 0.234 0.250 0.266 P2 50.3 50.8 51.3 1.980 2.000 2.020 T - - 0.55 - - 0.022 T1 - - 1.42 - - 0.056 T2 0.36 0.52 0.68 0.014 0.020 0.027 W 17.5 18.25 19 0.689 0.719 0.748 W1 5 6 7 0.197 0.236 0.276 ----* 253 254 255 9.961 10.000 10.039 ----* = every 20 pcs distance.
BOX Dimension 39.5 53 330 811.5 41 330 195 40 197 40.5 37.5 40 38.5 70 195 40 40.5 556 6 43 24 4.68 18.68 18.18 16.67 unit:mm.