AP432L

AP432/AP432A Adjustable Precision Shunt Regulator 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 AP432XXXXX Operating Temp. Range Blank : I: -20 oC~85oC -40 oC~85oC Reference Voltage Package Lead Free Packing Blank : Normal Blank : SOP-8L Tolerance: Blank : Tube or bulk : SOT89-3L L : Lead Free Package A Blank : 1.24V(+/-) 1% Y : Taping : TO92-3L A : 1.24V(+/-) 0.5% V W : SOT23-3L R : SOT23-3L Q : SOT25 Typical Application Circuit VIN VOUT + Cin AP432 R1 + Cout R2 VOUT = (1+R1/R2)VREF Precision Regulator 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.1.0 May.7, 2004 1/16 AP432/AP432A Adjustable Precision Shunt Regulator Block Diagram REF (R) + Cathode (C) VREF Symbol Cathode (C) 1.24V REF (R) Anode (A) Anode (A) Pin Configuration Order Number AP432Y AP432 AY AP432IY AP432IAY (SOT89) Pin Configuration (Top View) 3 Cathode 2 Anode 1 REF Order Number AP432R AP432AR AP432IR AP432IAR (SOT23) Pin Configuration (Top View) 3 Cathode Anode 1 2 REF AP432 AP432A AP432I AP432IA (SOP) Cathode Anode Anode NC 1 2 3 4 Anachip Corp. www.anachip.com.tw 2/16 + + + AP432V AP432 AV AP432IV AP432IAV (TO92) 3 Cathode 2 Anode 1 REF AP432W AP432AW AP432IW AP432IAW (SOT23) 3 REF Anode 1 2 Cathode 8 7 6 5 REF Anode Anode NC AP432 Q AP432 AQ AP432IQ AP432IAQ (SOT25) NC NC Cathode 1 2 3 5 4 Anode REF Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator 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 (2) SOP XX B1 B2 BA BB B3 B4 BC BD B5 B6 BE BF B7 B8 BG BH (Top View) SOT23/SOT25 XX YM X XX: P/N Type Date code Y : Year M : Month(A~L) X: Blank : normal L : Lead Free Package SOT89 XX YMX ( Top view ) Logo Date code YY : Year WW: Nth week AC AP432X X YYWW X Lead Free Blank: normal L: Lead Free Package Temp. grade Blank: -20oC ~ +85oC I : -40oC ~ +85oC Accuracy Blank: A : 1.24 ± 1% 1.24 ± 0.5% (3) TO92 ( Top view ) Temp. grade Accuracy Blank: 1.24 ± 1% A : 1.24 ± 0.5% Blank: -20oC ~ +85oC I : -40oC ~ +85oC AP432X X YWW X X Date code Y : Year WW: Nth week Internal code Lead Free Blank: normal L: Lead Free Package Anachip Corp. www.anachip.com.tw 3/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator 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 o Note 1: TJ, max =150 C. . Note 2: Ratings apply to ambient temperature at 25oC. Electrical Characteristics (Ta=25oC, unless otherwise specified.) Test conditions VKA = Vref, AP432 Reference voltage I KA = 10mA AP432A (Fig.1) Deviation of reference input voltage VKA = VREF , IKA = 10mA , over temperature (Note 3) Ta = full range (Fig.1) Ratio of the change in reference IKA = 10mA voltage to the change in cathode VKA = 20 ~VREF (Fig.2) voltage R1 = 10KΩ,R2 = ∞ Reference input current IKA= 10mA (Fig.2) R1 = 10KΩ,R2 = ∞ Deviation of reference input current IKA = 10mA over temperature Ta = Full range (Fig.2) Minimum cathode current for VKA = VREF (Fig.1) regulation Off-state current VKA = 20V , VREF = 0V (Fig.3) V KA = VREF Dynamic output impedance (Note 4) ∆IKA = 0.1mA ~ 15mA Frequency ≤ 1KHz (Fig.1) Parameter Symbol VREF VREF ∆VREF ∆V KA Min. 1.227 1.233 Typ. 1.24 3.0 -1.4 1.4 0.4 0.15 0.1 0.2 Max. 1.252 1.246 20 -2.0 3.5 1.2 0.3 1.0 0.5 Unit V mV mV/V µA µA mA µA Ω IREF αIREF IKA(min) IKA(off) Z KA Anachip Corp. www.anachip.com.tw 4/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator VMAX VDEV = VMAX - VMIN VMIN TI TEMPERATURE T2 Note 3. Deviation of reference input voltage, VDEV, is defined as the maximum variation of the reference over the full temperature range. The average temperature coefficient of the reference input voltage αVREF is defined as: ( VDEV VREF (25°C) ) × 10 6 αVREF = T2 − T1 ……………………..……………….. ( ppm °C ) Where: T2 – T1 = full temperature change. αVREF can be positive or negative depending on whether the slope is positive or negative. Note 4. The dynamic output impedance, RZ, is defined as: ∆ V KA Z KA = ∆ I KA 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: ' ∆v ZKA = ≈ ZKA ∆i (1 + R1 ) R2 Test Circuits Input IN IN VKA IKA R1 VREF IREF VREF IKA VKA VKA R2 IZ(OFF) V KA = V REF (1 + Fig1. Test Circuit for V KA= VREF R1 ) + IREF ⋅ R1 R2 Fig3. Test Circuit for off-state Current Fig2. Test circuit for V KA＞VREF Anachip Corp. www.anachip.com.tw 5/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator Typical Performance Characteristics SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY 60 AV -Small Signal Voltage Amplification (dB) 50 40 30 20 10 0 1K 10K IKA=10mA TA=25oC 15KΩ 9µF Output IKA 232Ω + 8.25KΩ - TEST CIRCUIT FOR VOLTAGE AMPLIFICATION f-Frequency-Hz 100K 1M 10M REFERENCE IMPEDANCE vs. FREQUENCY 100 ∣ZKA∣—Reference Impedance —Ω IKA=10mA TA=25oC 10 50Ω + 1 TEST CIRCUIT FOR REFERENCE IMPEDANCE 0.1 1K 10K 100K 1M 10M f-Frequency-Hz STABILITY BOUNDARY CONDITIONS † 100 90 80 IKA-Cathode Current-m A 70 60 50 40 30 20 10 0 0.001 0.01 0.1 1 C L-Load Capacitance-µ F 10 CL R2 A VKA=Vref B VKA=5V C VKA=10V D VKA=15V B TA=25 oC Stable CL Stable A C TEST CIRCUIT FOR CURVE A D R1=10KO 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 CL =0.V BATT a nd CL were then adjusted to determine the ranges of stability. TEST CIRCUIT FOR CURVE B, C, AND D Anachip Corp. www.anachip.com.tw 6/16 1KΩ 150O I KA + I KA + GND Output I KA GND VBATT 150O + - VBATT Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator Application Examples VIN RCL R R1A R1B VIN IOUT V IN ON R2A R2B OFF + LED on when Low Limit VIN＜High Limit ＜ Low Limit ≈ VREF (1+R1B/R2B) High Limit ≈ VREF (1+R1A/R2A) V IN Delay = RC x ln( ) VIN -VREF IOUT = VREF / RCL Fig.4 Voltage Monitor Fig.5 Delay Timer Fig.6 Current Limiter or Current Source VIN IOUT VIN VOUT VIN PUSE R1 VOUT 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) +V BE VREF(1 + R1A/R2A) Fig.10 Over-Voltage / Under-Voltage Protection Circuit Anachip Corp. www.anachip.com.tw 7/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator Package Diagrams (1) SOT89-3L Package Outline Dimension D1 E e1 e 50(2x) 80(2x) D c A b b1 b Symbol A b b1 C D D1 e e1 E HE L Dimensions In Millimeters Min. 1.40 0.36 0.41 0.35 4.40 1.40 2.90 1.45 2.40 3.94 0.80 Nom. 1.50 0.42 0.47 0.39 4.50 1.60 3.00 1.50 2.50 Max. 1.60 0.48 0.53 0.43 4.60 1.75 3.10 1.55 2.60 4.25 1.20 L HE Dimensions In Inches Min. 0.055 0.014 0.016 0.014 0.173 0.055 0.114 0.057 0.094 0.155 0.031 Nom. 0.059 0.016 0.043 0.015 0.177 0.062 0.118 0.059 0.098 Max. 0.063 0.018 0.051 0.017 0.181 0.069 0.122 0.061 0.102 0.167 0.047 Anachip Corp. www.anachip.com.tw 8/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator (2) TO92-3L Package Outline Dimension A1 A b1 D b e b E L Symbol A A1 b b1 D E L e Dimensions In Millimeters Min. Nom. Max. 3.302 3.556 3.810 1.016 0.330 0.381 0.432 0.406 0.457 0.506 4.445 4.572 4.699 4.445 4.572 4.699 13.00 15.500 1.150 1.270 1.390 Dimensions In Inches Min. Nom. Max. 0.130 0.140 0.150 0.040 0.013 0.015 0.017 0.016 0.018 0.020 0.175 0.180 0.185 0.175 0.180 0.185 0.512 0.610 0.045 0.050 0.055 Anachip Corp. www.anachip.com.tw 9/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator (3) SOT23-5L Package Outline Dimension D e1 θ1(4x) 5 4 0.10 C 5x Seating Plane A1 θ 2(4x) E1 E A A2 1 e 2 3 b With Plating b1 C C1 Gauge Plane 0.25 mm θ Base Metal b L L1 Symbol A A1 A2 b b1 c c1 D E E1 L L1 e e1 θ θ1 θ2 Dimensions In Millimeters Min. 1.05 0.05 1.00 0.25 0.25 0.08 0.08 2.70 2.60 1.50 0.35 Nom. 1.20 0.10 1.10 0.40 0.11 2.85 2.80 1.60 0.45 0.60 Ref. 0.95 Bsc. 1.90 Bsc. 0o 3o 6 o Dimensions In Inches Min. 0.041 0.002 0.039 0.010 0.010 0.003 0.003 0.106 0.102 0.059 0.014 Nom. 0.047 0.004 0.043 0.016 0.004 0.112 0.110 0.063 0.018 0.024 Ref. 0.037 Bsc. 0.075 Bsc. Max. 0.053 0.006 0.047 0.022 0.018 0.008 0.006 0.118 0.118 0.067 0.022 Max. 1.35 0.15 1.20 0.55 0.45 0.20 0.15 3.00 3.00 1.70 0.55 5o 5o 8 o 10o 7o 10 o 0o 3o 6 o 5o 5o 8 o 10o 7o 10 o Anachip Corp. www.anachip.com.tw 10/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator (4) SOT23-3L Package Outline Dimension 2 1 3 e D A2 A b Symbol A A1 A2 b C D E e HE L Dimensions In Millimeters Min. 1.00 0.00 1.00 0.35 0.10 2.70 1.40 1.70 2.40 0.30 Nom. 1.20 1.15 0.175 2.90 1.60 2.00 2.70 Max. 1.40 0.10 1.30 0.50 0.25 3.10 1.80 2.30 3.00 0.55 A1 C L Dimensions In Inches Min. 0.039 0.000 0.039 0.014 0.004 0.106 0.055 0.067 0.094 0.012 Nom. 0.047 0.045 0.007 0.114 0.063 0.079 0.106 Max. 0.055 0.004 0.051 0.020 0.010 0.122 0.071 0.091 0.118 0.022 Anachip Corp. www.anachip.com.tw 11/16 Rev.1.0 May.7, 2004 HE E AP432/AP432A Adjustable Precision Shunt Regulator (5) SOP-8L Package Outline Dimension E H L VIEW "A" D 7 (4X) A2 A 0.015x45 7 (4X) A1 e B y C VIEW "A" Symbol A A1 A2 B C D E e H L y θ Dimensions In Millimeters Min. Nom. Max. 1.40 1.60 1.75 0.10 0.25 1.30 1.45 1.50 0.33 0.41 0.51 0.19 0.20 0.25 4.80 5.05 5.30 3.70 3.90 4.10 1.27 5.79 5.99 6.20 0.38 0.71 1.27 0.10 0O 8O Dimensions In Inches Min. Nom. Max. 0.055 0.063 0.069 0.040 0.100 0.051 0.057 0.059 0.013 0.016 0.020 0.0075 0.008 0.010 0.189 0.199 0.209 0.146 0.154 0.161 0.050 0.228 0.236 0.244 0.015 0.028 0.050 0.004 0O 8O Anachip Corp. www.anachip.com.tw 12/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator Taping Information (1)TO92 TAPING M ∆h A Ho T Do Po F2 F1 Symbol Po M Ho Do A Δh T F1 F2 Min. 12.4 2.0 15.5 0.0 2.4 2.4 Millimeters Typ. 12.7 2.5 16.0 4.0 6.0 18.0 2.5 2.5 Max. 13.0 3.0 16.5 1.0 2.9 2.9 Min. 0.488 0.079 0.610 0.000 0.094 0.094 Inches Typ. 0.500 0.098 0.630 0.157 0.236 0.709 0.098 0.098 Max. 0.512 0.118 0.650 0.039 0.114 0.114 Anachip Corp. www.anachip.com.tw 13/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator 40mm 205mm E 330mm 90 ±1mm 30 ±1mm 53 ±2mm 45mm 76 ±1mm 360 ±2mm Anachip Corp. www.anachip.com.tw 14/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator (2) TO92 TAPING H2 H2 H2A H2A A H3 H4 L1 H1 D2 L H W1 W D T2 T T1 F1 F2 P1 P P2 D1 Millimeters Min. Typ. A 3.18 7.59 D 3.8 4 D1 0.36 0.445 D2 F1,F2 2.4 2.5 F1-F2 0.30 H 15.5 16 H1 8.5 9 H2 H2A H3 H4 L L1 2.5 P 12.5 12.7 P1 5.95 6.35 P2 50.3 50.8 T T1 T2 0.36 0.52 W 17.5 18.25 W1 5 6 ----* 253 254 ----* = every 20 pcs distance. Symbol Max. 12 4.2 0.53 9.0 2.7 16.5 9.5 0.5 0.5 27 20 11 12.9 6.75 51.3 0.55 1.42 0.68 19 7 255 Min. 0.125 0.150 0.014 0.094 0.610 0.335 0.098 0.492 0.234 1.980 0.014 0.689 0.197 9.961 Inches Typ. 0.299 0.157 0.018 0.098 ±0.012 0.630 0.354 0.500 0.250 2.000 0.020 0.719 0.236 10.000 Max. 0.472 0.165 0.021 0.354 0.106 0.650 0.374 0.020 0.020 1.063 0.787 0.433 0.508 0.266 2.020 0.022 0.056 0.027 0.748 0.276 10.039 Anachip Corp. www.anachip.com.tw 15/16 Rev.1.0 May.7, 2004 AP432/AP432A Adjustable Precision Shunt Regulator BOX Dimension 39.5 330 811.5 40.5 40.5 197 38.5 41 40 330 40 195 53 37.5 6 195 70 43 556 24 18.68 16.67 unit:mm. 4.68 18.18 Anachip Corp. www.anachip.com.tw 16/16 40 Rev.1.0 May.7, 2004