APL1431 Adjustable Precision Shunt Regulator Features General Description • • The APL1431 is a 3-terminal adjustable voltage reference with specified thermal stability over applicable commercial temperature ranges. Output voltage may be set to any value between Vref (2.5 V) and 20 V with two external resistors (see Figure 2). When used with an photocoupler, the APL1431 is an ideal voltage reference in isolated feedback circuits for 2.5V to 12V switching-mode power supplies. This device has a typical output impedance of 0.1Ω. Active output circuitry provides a very sharp turn-on characteristic, making the APL1431 excellent replacements for zener diodes in many applications, including on-board regulation and adjustable power supplies. Precise Reference Voltage to 2.500V Guaranteed 0.5% or 1% Reference Voltage Tolerance • • • Adjustable Output Voltage , VO = VREF to 20V • Low Operational Cathode Current , 250µA Sink Current Capability , 1mA to 100mA Quick Turn-on Typical • • 0.1Ω Typical Output Impedance SOT-23 , SOT-89 and TO-92 Packages ANODE 3 Applications • • • 1 2 CATHODE REF Linear Regulators SOT-23 (Top View) Adjustable Power Supply Switching Power Supply Symbol 1 2 3 ANODE REF REF Anode CATHODE Cathode SOT-89 (Top View) Functional Diagram C athode 1 REF 2 ANOD E 3 CATHO DE + REF _ V ref TO-92 (Top View) Anode ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 1 www.anpec.com.tw APL1431 Ordering and Marking Information E le c . G ra d e A : 0 .5 % R e fe re n c e V o lta g e T o le ra n c e B : 1 % R e fe re n c e V o lta g e T o le ra n c e P ackage C ode A : S O T -2 3 D : S O T -8 9 E : T O -9 2 Y : C h ip F o rm Tem p. Range C : 0 to 7 0 ° C I : -4 0 to 8 5 ° C H a n d lin g C o d e P B : P la s tic B a g TB : Tape & B ox TR : Tape & R eel APL1431 H a n d lin g C o d e Tem p. Range P ackage C ode E le c . G ra d e A P L1431 A : 1431 A P L1431 D : A P L1431 XXXXX A P L1431 E : XXXXX APL 1431 XXXXX X X X X X - D a te C o d e - D a te C o d e Absolute Maximum Ratings Symbol VKA IK IREF θJA TA Tj TSTG TSOL Parameter Cathode voltage Continuous cathode current range Reference current range Thermal Resistance from Junction to Ambient in Free Air SOT-23 SOT-89 TO-92 Ambient temperature range APL1431XXC APL1431XXI Junction temperature range APL1431XXC APL1431XXI Storage Temperature Range Lead temperature range, Ts (Soldering, 10sec) Electrical Characteristics Symbol VREF ∆VREF/T ∆VREF / ∆VKA Rating 20 120 3 Unit V mA mA °C/W 416 250 250 0 to 70 -40 to 85 0 to 150 -40 to 150 -65 to 150 260 °C °C °C °C TA= 25°C ( unless otherwise noted) APL1431 Min. Typ. Max. APL431A 2.487 2.500 2.513 VKA=VREF, Reference voltage IK=10mA*1 APL431B 2.475 2.500 2.525 VKA=VREF, IK=10mA Reference voltage TA= 0 to 70°C*1 20 drift over temp. range 30 TA= -40 to 85°C*1 *2 IK=10mA, VKA=VREF to 10V -1.5 -3 Voltage ratio (open loop gain) IK=10mA, VKA=VREF to 20V*2 -1.2 -2.5 Parameter Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 Test Conditions 2 Unit V mV mV/V www.anpec.com.tw APL1431 Electrical Characteristics Cont. Symbol IREF Parameter Reference current IK(off) |ZKA| Dynamic impedance IK(min) IK Notes : APL1431 Test Conditions Reference current drift Min. cathode current Off-state cathode current ∆IREF/T TA= 25°C ( unless otherwise noted) Cathode current Min. Unit Typ. Max. 1.0 3 µA IK=10mA, R1=10kΩ, R2=open*2 IK=10mA, R1=10kΩ, R2=open, TA= -40 to 85°C*2 VKA=VREF*1 0.3 1 µA 0.25 0.5 mA VKA= 20V, VREF= 0V*3 0.1 1 µA 0.1 0.4 Ω 100 mA VKA=VREF IK=1mA to 100mA, f ≤1kHz*1 VKA=VREF+ 50mV*2 *1 : use Figure 1 *2 : use Figure 2 *3 : use Figure 3 Test figures VIN VIN Vo Vo IK(off) IK VREF Figure 1. Test Circuit for VKA=VREF , VO=VKA=VREF Figure 3. Test Circuit for IK(off) Application schematic VIN Vo VIN IK R1 IREF R2 VREF 5-Volt Precision Regulator Rb Vo 27.5kΩ 0.1% 27.5kΩ 0.1% Figure 2. Test Circuit for VKA>VREF, VO= VKA= VREF× (1+R1/R2) + IREF × R1 ∗ Rb should provide cathode current large than 1mA to maintain APL431 work properly. Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 3 www.anpec.com.tw APL1431 Typical Characteristics Reference Current vs.Temperature Cathode Current vs. Cathode Voltage 125 800 Cathode Current -µA Reference Current -µA 600 100 75 400 IK-MIN 200 0 50-40 -20 0 20 40 60 80 -200 -1 100 0 Temperature - °C 1 2 3 Cathode Voltage (V) Reference Voltage vs. Temperature Cathode Current vs. Cathode Voltage 100 2.52 2.51 50 Reference Voltage -V Cathode Current -mA 2.515 0 -50 2.505 2.5 2.495 2.49 2.485 2.48 2.475 -100 -1 0 1 2 2.47 -40 3 Cathode Voltage -V Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 -20 0 20 40 60 80 100 Temperature ( °C) 4 www.anpec.com.tw APL1431 Typical Characteristics (Cont.) Pulse Response 60 6 50 5 Input Input and Output Voltage - V Small-Signal Voltage Amplification- dB Small-Signal Voltage Amplification vs Frequency 40 30 20 10 0 1 10 100 4 2 1 0 3 1000 output 3 4 5 6 10 11 12 13 0 0.5 VKA = 20V VREF = 0 -0.25 Ratio of Delta Reference Voltage to Delta Cathode Voltage - mV/V Off-State Cathode Current - µA 9 Ratio of Delta Reference Voltage to Delta Cathode Voltage vs Temperature Off-State Cathode Current vsTemperature 0.3 0.2 0.1 0 -40 8 Time - µs Frequency - kHz 0.4 7 -20 0 20 40 60 80 100 Temperature ( ° C) Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 VKA= VREF to 20V IK = 10mA -0.5 -0.75 -1 -1.25 -1.5 -1.75 -2 -40 -20 0 20 40 60 80 100 120 Temperature ( °C) 5 www.anpec.com.tw APL1431 Typical Characteristics (Cont.) Off-State Cathode Current vs Cathode Voltage Reference Impedance vs Frequency 2000 1 VREF=0 Reference Impedance - Ω Off-State Cathode Current (µA) 2500 1500 1000 500 IK= 10mA 500m TA= 25°C 300m 200m 0 -500 -5 0 5 10 15 20 25 100m 1k 30 2k 5k 10k 20k 50k 100k 200k Frequency Cathode Voltage (V) Figure 9 Figure 10 Stability Boundary Conditions 100 Cathode Current -mA 90 VkA=VREF 80 70 VkA=3.3V TA= 25°C Stable 60 50 40 30 20 10 0 0.001 0.01 0.1 1 Load Capacitance - µF Figure 11 Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 6 www.anpec.com.tw APL1431 Packaging Information SOT-23 D B 3 E H 2 1 S e A L A1 Dim C M illim et er s Inc he s A M in. 1. 0 0 M ax. 1. 3 0 M in. 0. 0 39 M ax. 0. 0 51 A1 0. 0 0 0. 1 0 0. 0 00 0. 0 04 B 0. 3 5 0. 5 1 0. 0 14 0. 0 20 C 0. 1 0 0. 2 5 0. 0 04 0. 0 10 D 2. 7 0 3. 1 0 0. 1 06 0. 1 22 E 1. 4 0 1. 8 0 0. 0 55 0. 0 71 3. 0 0 0. 0 94 e 1. 9 0 B SC H 2. 4 0 L 0. 3 7 Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 0. 0 75 B SC 0. 11 8 0. 0 01 5 7 www.anpec.com.tw APL1431 Packaging Information SOT-89 D D1 a H 1 2 E 3 L C B1 B e e1 A a D im A B B1 C D D1 e e1 E H L α M illim eters M in. 1.40 0.40 0.35 0.35 4.40 1.35 Inches M ax. 1.60 0.56 0.48 0.44 4.60 1.83 M in. 0.055 0.016 0.014 0.014 0.173 0.053 1.50 B SC 3.00 B SC 2.29 3.75 0.80 Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 M ax. 0.063 0.022 0.019 0.017 0.181 0.072 0.059 BSC 0.118 B SC 2.60 4.25 1.20 10° 8 0.090 0.148 0.031 0.102 0.167 0.047 10° www.anpec.com.tw APL1431 Packaging Information TO-92 3 J e e1 2 D 1 L1 b2 S b S Q A E L SEATING PLANE Dim A Millimeters Min. Max. 4.318 5.334 Inches Min. 0.170 Max. 0.210 φ b φ b2 0.406 0.559 0.016 0.022 0.406 0.559 0.016 0.022 φ D E 4.445 5.207 0.175 0.205 3.175 4.191 0.125 0.165 e 2.413 2.667 0.095 0.105 e1 1.143 1.397 0.045 0.055 J 3.429 0.135 L 12.70 0.500 L1 1.27 Q 2.921 S 2.032 Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 0.050 0 . 11 5 2.667 9 0.080 0.105 www.anpec.com.tw APL1431 Physical Specifications Terminal Material Lead Solderability Solder-Plated Copper (Solder Material : 90/10 or 63/37 SnPb) Meets EIA Specification RSI86-91, ANSI/J-STD-002 Category 3. Reflow Condition (IR/Convection or VPR Reflow) temperature Reference JEDEC Standard J-STD-020A APRIL 1999 Peak temperature 183°C Pre-heat temperature Time Classification Reflow Profiles Convection or IR/ Convection Average ramp-up rate(183°C to Peak) 3°C/second max. 120 seconds max Preheat temperature 125 ± 25°C) 60 – 150 seconds Temperature maintained above 183°C Time within 5°C of actual peak temperature 10 –20 seconds Peak temperature range 220 +5/-0°C or 235 +5/-0°C Ramp-down rate 6 °C /second max. 6 minutes max. Time 25°C to peak temperature VPR 10 °C /second max. 60 seconds 215-219°C or 235 +5/-0°C 10 °C /second max. Package Reflow Conditions pkg. thickness ≥ 2.5mm and all bgas Convection 220 +5/-0 °C VPR 215-219 °C IR/Convection 220 +5/-0 °C pkg. thickness < 2.5mm and pkg. volume ≥ 350 mm³ Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 10 pkg. thickness < 2.5mm and pkg. volume < 350mm³ Convection 235 +5/-0 °C VPR 235 +5/-0 °C IR/Convection 235 +5/-0 °C www.anpec.com.tw APL1431 R e lia b ilit y te s t p r o g r a m Te s t ite m S O L D E R A B IL IT Y H O LT PCT TST ESD L a tc h -U p M e th o d M IL -S T D -8 8 3 D -2 0 0 3 M IL -S T D -8 8 3 D -1 0 0 5 .7 J E S D -2 2 - B , A 1 0 2 M IL -S T D -8 8 3 D -1 0 11 .9 M IL -S T D -8 8 3 D -3 0 1 5 .7 JESD 78 D e s c rip tio n 2 45 °C , 5 S E C 1 0 0 0 H rs B ia s @ 1 2 5 ° C 1 6 8 H rs , 1 0 0 % R H , 1 2 1 ° C -6 5 °C ~ 1 5 0 °C , 2 0 0 C y c le s V H B M > 2 K V, V M M > 2 0 0 V 1 0 m s , I tr > 1 0 0 m A Carrier Tape & Reel Dimensions t D P Po E P1 Bo F W Ko Ao D1 T2 J C A B T1 Application SOT-23 Application SOT-89 A B C J 178±1 60 ± 1.0 12.0 F D D1 Po 3.5 ± 0.05 1.5 +0.1 F0.1MIN A B C 178 ±1 70 ± 2 F D D1 5.5 ± 0.05 1.5± 0.1 1.5± 0.1 T1 P E 1.4 W 8.0+ 0.3 - 0.3 4.0 1.75 P1 Ao Bo Ko t 4.0 2.0 ± 0.05 3.1 3.0 1.3 0.2±0.03 J T1 T2 P E 14 ± 2 1.3 ± 0.3 W 12 + 0.3 12 - 0.1 8 ± 0.1 1.75± 0.1 Po P1 Ao Bo Ko t 4.0 ± 0.1 2.0 ± 0.1 4.8 ± 0.1 4.5± 0.1 2.5 ± 0.15 9.0 ± 0.5 13.5 ± 0.15 3 ± 0.15 T2 1.80± 0.1 0.3±0.013 (mm) Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 11 www.anpec.com.tw APL1431 Carrier Tape & Reel Dimensions H2 D2 H2A H2 H2 A H3 H4 H W1 H1 W W2 L L1 D F1F2 T2 T T1 D1 P1 P Application TO-92 A D D1 3.18~12 4.0±0.2 H3 H4 W 0.36~0.68 17.5~19 D2 H H1 H2 H2A 16±0.5 9±0.5 0.5 MAX 0.5 MAX L1 F1,F2 2.5+0.2 -0.1 P P1 P2 T T1 2.5 MIN 12.7±0.2 6.35±0.4 0.36~0.53 9.0 MAX L 27.0 MAX 20.0 MAX 11.0 MAX T2 P2 W1 W2 5.0~7.0 0.5 MAX 50.8±0.5 0.55 MAX 1.42 MAX (mm) Cover Tape Dimensions Application SOT- 23 SOT- 89 TO-92 Carrier Width 8 12 17.5~19 Copyright ANPEC Electronics Corp. Rev. A.3 - May., 2003 Cover Tape Width 5.3 9.3 5.0~7.0 12 Devices Per Reel 3000 1000 2000 www.anpec.com.tw