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| 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: 150A Equivalent full-range temp coefficient: 30 ppm/oC Fast turn-on response Low dynamic output impedance: 0.2 Programmable output voltage to 20V Low output noise Lead Free packages: SOT25, SC59, SC59R, SOT89-3L and TO92-3L SOT23, SOT23R, SOT25, SC59, SC59R, SOP-8L, SOT89-3L and TO92-3L: Available in "Green" Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1) Description The AP432 and AP432A 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 0.2. 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/AP432A 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. * Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. Typical Application Circuit VIN V OUT + C in A P 432 R1 + C out R2 V O U T = (1+R 1/R 2)VREF P recision R egulator AP432/AP432A Document number: DS31003 Rev. 16 - 2 1 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Pin Assignments (1) SOT25 (2) SOP-8L (Top View) NC NC CATHODE 1 2 3 4 REF 5 ANODE (Top View) CATHODE ANODE ANODE NC 1 2 3 4 8 7 6 5 REF ANODE ANODE NC (3) SC59 (4) SC59R (Top View) 3 REF ANODE 1 2 CATHODE (Top View) 3 ANODE 1 2 REF CATHODE (5) SOT23 (6) SOT23R (Top View) 3 ANODE 1 2 CATHODE REF ANODE (Top View) 3 1 2 REF CATHODE (7) SOT89-3L (8) TO92-3L (Top View) (Top View) + 3 Cathode 2 Anode 1 REF 1 2 3 REF Anode Cathode AP432/AP432A Document number: DS31003 Rev. 16 - 2 2 of 14 www.diodes.com + + June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Functional Block Diagram REF (R) + Cathode (C) Anode (A) VREF Symbol Cathode (C) REF (R) Anode (A) Absolute Maximum Ratings Symbol Vcv ICC IREF TOP TST Parameter Cathode Voltage Continuous Cathode Current Reference Input Current Operating Temperature Storage Temperature SOT23(R) SOT25 SC59(R) SOP-8L SOT89-3L TO92-3L Rating +20 -10 to +250 10 -20 to +85 -65 to +150 400 550 400 600 800 780 Unit V mA mA o C o C mW mW mW mW mW mW PD Power Dissipation (Notes 2, 3) Notes: 2. TJ, max =150C. 3. Ratings apply to ambient temperature at 25C. AP432/AP432A Document number: DS31003 Rev. 16 - 2 3 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Electrical Characteristics (TA = 25oC, V+ = +5.0V, unless otherwise stated) Symbol VREF VREF VREF VKA IREF IREF IKA(MIN) IKA(OFF) |ZKA| Parameter Reference voltage Deviation of Reference input voltage over temperature (Note 4) Ratio of the change in Reference voltage to the change in Cathode voltage Reference input current Deviation of Reference input current over temperature Minimum Cathode current for regulation Off-state current Dynamic output impedance (Note 5) Test Conditions AP432 VKA = VREF, I KA = 10mA (Fig.1) AP432A VKA = VREF, IKA = 10mA, Ta = Full range (Fig.1) IKA = 10mA (Fig. 2) VKA = 20~ VREF Min 1.227 1.233 Typ. 1.24 3.0 Max 1.252 1.246 20 Unit V mV -1.4 1.4 0.4 0.15 0.1 0.2 -2.0 3.5 1.2 0.3 1.0 0.5 mV/V A A mA A R1 = 10K,R2 = IKA= 10mA (Fig. 2) R1 = 10K,R2 = IKA = 10mA Ta = Full range (Fig. 2) VKA = VREF (Fig.1) VKA = 36V, VREF = 0V (Fig. 3) V KA = VREF V KA = VREF IKA = 0.1mA ~ 15mA Frequency 1KHz (Fig.1) VMAX VDEV = VMAX - VMIN VMIN TI Notes: Temperature T2 4. 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 VREF is defined as: VREF Where: VDEV ) 10 6 VREF (25C) = T2 - T1 ( .............................................. ( ppm C ) T2 - T1 = full temperature change. VREF can be positive or negative depending on whether the slope is positive or negative. Notes: 5. The dynamic output impedance, RZ, is defined as: Z KA = V 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: Z KA = ' v i Z KA (1 + R1 ) R2 June 2010 (c) Diodes Incorporated AP432/AP432A Document number: DS31003 Rev. 16 - 2 4 of 14 www.diodes.com AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Test Circuits Input IN IN VKA IKA R1 VREF R2 IREF VREF IKA VKA VKA IZ(OFF) Note:VKA=VREF(1+R1/R2)+IREFxR1 Fig 1. Test Circuit for VKA= VREF Fig 2. Test Circuit for VKA > VREF Fig 3. Test Circuit for Off-State Current Typical Performance Characteristics AP432/AP432A Document number: DS31003 Rev. 16 - 2 5 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Typical Performance Characteristics (Continued) Small-Signal Voltage Amplification vs Frequency 60 AV-Small Signal Voltage Amplification (dB) 50 IKA=10mA TA=25oC 15K 9F Output IKA 232 40 30 20 Test Circuit for Voltage Amplification 10 0 1K 10K 100K 1M 10M f-Frequency-Hz Reference Impedance vs Frequency 100 ZKA Reference Impedance () I KA=10mA o TA =25 C 10 50 + 1 0.1 1K 10K 100K 1M 10M f-Frequency-Hz STABILITY BOUNDARY CONDITIONS 100 A VKA=Vref 90 80 IKA-Cathode Current-mA 70 60 Stable 50 40 30 20 10 0 0.001 0.01 0.1 1 CL-Load Capacitance-F 10 CL TA=25oC CL B VKA=5V C VKA=10V D VKA=15V B Stable C A Test Circuit for Curve A D R1=10K +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 VKA and IKA conditions with CL=0.VBATT and CL were then adjusted to determine the ranges of stability. AP432/AP432A Document number: DS31003 Rev. 16 - 2 6 of 14 www.diodes.com 8.25K + - + GND 1K Output I KA GND Test Circuit for Reference Impedance 150 I KA + VBATT I KA 150 + R2 VBATT Test Circuit for Curve B, C, and D June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Application Examples V IN VIN RCL R R1A R1B VIN I OUT ON R2A R2B OFF + LED on when Low Limit Delay = RC x ln ( VIN V -V IN ) IOUT = VREF / RCL REF Fig. 4 Voltage Monitor VIN I OUT Fig. 5 Delay Timer Fig. 6 Current Limiter or Current Source VIN VOUT VIN PULSE R1 VOUT R1 RS R2 R2 I OUT = VREF / RS VOUT = (1 + R1/R2) x VREF LIMIT (1 + R1/R2) x VREF Fig. 7 Constant-Current Sink Fig. 8 Higher-Current Shunt Regulator Fig. 9 Crow Bar VIN R1A R1B Output ON when Low Limit < 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 AP432/AP432A Document number: DS31003 Rev. 16 - 2 7 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Ordering Information AP432 X XX X - X Reference Voltage Tolerance Blank : +/- 1% A : +/- 0.5% Package SA : SOT23 SR : SOT23R Q : SOT25 W : SC59 R : SC59R Blank : SOP-8L Y : SOT89-3L V : TO92-3L Packaging (Note 9) SOT23 SOT23R SOT25 SOT25 SC59 SC59 SC59R SC59R SOP-8L SOT89-3L SOT89-3L TO92-3L TO92-3L Lead Free L : Lead Free G : Green (Note 6) Packing 7/13 : Tape & Reel A : Ammo Box (Note 7) Device (Note 8) AP432(A)SAG-7 AP432(A)SRG-7 AP432(A)QL-7 AP432(A)QG-7 AP432(A)WL-7 AP432(A)WG-7 AP432(A)RL-7 AP432(A)RG-7 AP432(A)G-13 AP432(A)YL-13 AP432(A)YG-13 AP432(A)VL-A AP432(A)VG-A Notes: Package Code SA SR Q Q W W R R Y Y V V 7"/13 Tape and Reel Part Number Quantity Suffix 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 3000/Tape & Reel -7 2500/Tape & Reel -13 2500/Tape & Reel -13 2500/Tape & Reel -13 NA NA NA NA Ammo Box Part Number Quantity Suffix NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2000/Box NA 2000/Box NA 6. SOP-8L, SOT23 and SOT23R are available in "Green" products only. 7. Ammo Box is for TO92-3L Spread Lead. 8. Suffix "A" denotes AP432A device. 9. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AP432/AP432A Document number: DS31003 Rev. 16 - 2 8 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Marking Information (1) SC59 and SC59R ( Top View ) 3 XX Y W X 1 (2) SOT23 and SOT23R 2 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green a~z : Lead Free ( Top View ) 3 XX Y W X 1 (3) SOT25 2 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green ( Top View ) 5 4 7 XX Y W X 1 (4) SOP-8L 2 3 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green a~z : Lead Free ( Top View ) 8 5 Logo Part Number Accuracy Blank : 2.495 + 1% A : 2.495 + 0.5% AP432X YY WW X X 1 4 G : Green YY : Year : 08, 09,10~ WW : Week : 01~52; 52 represents 52 and 53 week X : Internal Code AP432/AP432A Document number: DS31003 Rev. 16 - 2 9 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Marking Information (Continued) (5) SOT89-3L ( Top View ) XX : Identification code Y : Year : 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : Internal code A~Z : Green a~z : Lead Free XX YWX 1 2 3 (6) TO92-3L ( Top View ) Accuracy Blank: 2.495 + 1% A: 2.495 + 0.5% AP432 X Y WW X X G : Green L : Lead Free Y : Year : 0~9 WW : Week : 01~52; 52 represents 52 and 53 week X : Internal Code Identification Code Table Device AP432SA AP432ASA AP432SR AP432ASR AP432Q AP432AQ AP432W AP432AW AP432R AP432AR AP432Y AP432AY Notes: Package (Note 10) SOT23 SOT23 SOT23R SOT23R SOT25 SOT25 SC59 SC59 SC59R SC59R SOT89 SOT89 Identification Code D3 D4 D7 D8 B7 B8 B3 B4 B5 B6 B1 B2 Date Code YM YM YM YM YM YM YM YM YM YM YM YM 10. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. AP432/AP432A Document number: DS31003 Rev. 16 - 2 10 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Package Outline Dimensions (All Dimensions in mm) (1) Package type: SOT25 (2) Package Type: SC59 and SC59R 0.35/0.50 TOP VIEW 1.50/ 1.70 2.70/ 3.00 1.90 2.90/3.10 1.00/ 1.30 0.10/0.20 0.013/0.10 0.95 0.35/0.55 0 O /8 O AP432/AP432A Document number: DS31003 Rev. 16 - 2 11 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Package Outline Dimensions (Continued) (3) Package Types: SOT23 and SOT23R (4) Package Type: SOP-8L 3.85/3.95 5.90/6.10 0.10/0.20 0.254 0.62/0.82 Gauge Plane Seating Plane Detail "A" 7~9 1.30/1.50 1.75max. 0.15/0.25 0.35max. 45 7~9 Detail "A" 0/8 1.27typ 4.85/4.95 0.3/0.5 8x-0.60 5.4 6x-1.27 8x-1.55 Land Pattern Recommendation (Unit: mm) AP432/AP432A Document number: DS31003 Rev. 16 - 2 12 of 14 www.diodes.com June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR Package Outline Dimensions (Continued) (5) Package Type: SOT89-3L 1.40/1.75 Typ 1.60 1.7 2.35/2.60 Typ 2.48 3.94/4.25 0.4 1.9 1.3 1.45/1.55 Typ 1.50 2.90/3.10 Typ 3.00 80 (2x) 4.40/4.60 Typ 4.50 1.40/1.60 Typ 1.50 0.80/ 1.20 1.5 0.9 Land Pattern Recommendation (Unit: mm) 50 (2x) 0.36/0.48 0.41/0.53 0.36/0.48 Typ 0.42 Typ 0.47 Typ 0.42 0.35/0.43 Typ 0.39 (6) Package Type: TO92-3L for Ammo pack AP432/AP432A Document number: DS31003 Rev. 16 - 2 13 of 14 www.diodes.com 2.7 June 2010 (c) Diodes Incorporated AP432/AP432A ADJUSTABLE PRECISION SHUNT REGULATOR IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright (c) 2010, Diodes Incorporated www.diodes.com AP432/AP432A Document number: DS31003 Rev. 16 - 2 14 of 14 www.diodes.com June 2010 (c) Diodes Incorporated |
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