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APL431
Adjustable Precision Shunt Regulator
Features
* * * * * * * *
Precise Reference Voltage to 2.500V Guaranteed 0.5%, 1% or 2% Reference Voltage Tolerance Sink Current Capability, 1mA to 100mA Quick Turn-on Adjustable Output Voltage, VO = Vref to 20V Low Operational Cathode Current, 250A Typical 0.1 Typical Output Impedance SOT-23, SOT-23-5, SOT-89, SO-8, TO-92 and TO-92S Packages
General Description
The APL431 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 APL431 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 0.1. Active output circuitry provides a very sharp turn-on characteristic, making the APL431 excellent replacements for zener diodes in many applications, including on-board regulation and adjustable power supplies.
NC
ANODE 3 1 2
NC
5 1 2
4 3
Applications
* * *
Linear Regulators Adjustable Power Supply Switching Power Supply
1
REF
CATHODE
R EF AN O D E C ATH O D E
SOT-23 (Top View)
SOT-23-5 (Top View)
CATHODE ANODE
2 3
1 2 3 4
8 7 6 5
REF ANODE ANODE NC
Symbol
REF Anode Cathode
REF ANODE CATHODE
ANODE NC
SOT-89 (Top View)
SO-8 (Top View)
3 CATHODE
Functional Diagram
C athode
3
CATHODE
2
ANODE
2
ANODE
R EF
+ _
1
REF
1
REF
Vref
TO-92 (Top View)
Anode
TO-92S (Top View)
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. C.1 - Jun., 2003 1 www.anpec.com.tw
APL431
Ordering and Marking Information
APL431
L e a d F re e C o d e
H a n d lin g C o d e Tem p. Range Package C ode E le c . G ra d e
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 C : 2 % R e fe re n c e V o lta g e T o le ra n c e Package C ode A : S O T -2 3 B : S O T -2 3 -5 D : S O T -8 9 E : T O -9 2 I : T O -9 2 S K : S O -8 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 & Box TR : Tape & Reel L e a d F re e C o d e L : L e a d F re e D e v ic e B l a n k : O r g in a l D e v i c e A P L 4 3 1 E /I : APL 431 XXXXX X X X X X - D a te C o d e
A P L 4 3 1 A /B :
431
A P L 4 3 1 D /K :
AP L431 XXXXX
XXXXX
- D a te C o d e
Absolute Maximum Ratings
Symbol VKA IK IREF JA Parameter Cathode voltage Continuous cathode current range Reference current range Thermal Resistance from Junction to Ambient in Free Air SOT-23 SOT-23-5 SOT-89 TO-92 SO-8 Ambient temperature range APL431XXC APL431XXI Junction temperature range APL431XXC APL431XXI Storage Temperature Range Lead temperature range, Ts (Soldering, 10sec) Original Device Lead Free Device Rating 20 100 3 416 357 250 250 210 0 to 70 -40 to 85 0 to 150 -40 to 150 -65 to 150 260 300 Unit V mA mA C/W
TA Tj TSTG TSOL
C C C C
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Electrical Characteristics (Cont.)
Symbol Parameter
TA= 25C ( unless otherwise noted)
APL431 Min. 2.487 2.475 2.450 Typ. 2.500 2.500 2.500 Max. 2.513 2.525 2.550 20 30 -3 -2.5 3 1 0.5 1 0.4 100
Test Conditions VKA=VREF, IK=10mA*1
Unit
VREF
VREF / T VREF / VKA IREF IREF/T IK(min) IK(off) |ZKA| IK
APL431A APL431B APL431C VKA=VREF,IK=10mA Reference voltage T =0 to 70C*1 drift over temp. range A T A =-40 to 85C*1 IK=10mA, V KA=VREF to 10V*2 Voltage ratio (open loop gain) IK=10mA, V KA=VREF to 20V*2 IK=10mA, Reference current R 1=10k, R 2=open*2 IK=10mA, R 1=10k, Reference current drift R 2=open, T A= -40 to 85C *2 Min. cathode current VKA=VREF*1 Off-state cathode VKA= 20V, VREF= 0V *3 current VKA=VREF Dynamic impedance IK=1mA to 100mA, f 1kHz *1 Cathode current V KA=VREF+ 50mV*2 Reference voltage
V
mV mV/V A A mA A mA
-1.5 -1.2 1.0 0.3 0.25 0.1 0.1
Notes :
*1 : use Figure 1 *2 : use Figure 2 *3 : use Figure 3
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Test figures
VIN IK VREF Vo
VIN IK(off)
Vo
Figure 1. Test Circuit for VKA=VREF , VO=VKA=VREF
Figure 3. Test Circuit for IK(off)
VIN IK R1 R2 IREF VREF
Vo
Figure 2. Test Circuit for VKA>VREF, VO= VKA= VREFx (1+R1/R2) + IREF x R1
Application schematic
5-Volt Precision Regulator
VIN Rb Vo 27.5k 0.1%
27.5k 0.1%
Rb should provide cathode current large than
1mA to maintain APL431 work properly.
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Typical Characteristics
Reference Input Current vs. Temperature
2
Cathode Current vs. Cathode Voltage
800
Reference Input Current (A)
600
Cathode Current (A)
1.5
400
1
200
IK-MIN
0.5
0
0 -40 -20 0 20 40 60 80 100
-2 0 0 -1
0
1
2
3
Temperature (C)
Cathode Voltage (V)
Cathode Current vs. Cathode Voltage
800
Reference Voltage vs. Temperature
2.52 2.515
Cathode Current (mA)
Reference Voltage (V)
-1 0 1 2 3
600
2.51 2.505 2.5 2.495 2.49 2.485 2.48 2.475
400
200
0
-200
2.47 -40
-20
0
20
40
60
80
100
Cathode Voltage (V)
Temperature (C)
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APL431
Typical Characteristics (Cont.)
Small-Signal Voltage Amplification vs. Frequency
Small-Signal Voltage Amplification (dB)
60
6
Pulse Response
Input
5
50
Input and Output Voltage (V)
40
4
30
3
Output
20
2
10
1
0 1
10
100
1000
0 3
4
5
6
7
8
9
10
11
12
13
Frequency (kHz)
Time (S)
Off-State Cathode Current vs. Temperature
0 .5
Ratio of Delta Reference Voltage to Delta Cathode Voltage vs. Tmperature
Ratio of Delta Reference Voltage to Delta Cathode Voltage (mV/V)
0 -0 .2 5 -0 .5 -0 .7 5 -1 -1 .2 5 -1 .5 -1 .7 5 -2 -4 0 -2 0 0 20 40 60 80 100 120
Off-State Cathode Current (A)
VKA=20V VREF=0
0 .4
VKA=VREF to 20V IK=10mA
0 .3
0 .2
0 .1
0 -4 0
-2 0
0
20
40
60
80
100
Temperature (C)
Temperature (C)
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Typical Characteristics (Cont.)
Off State Cathode Current vs. Cathode Voltage
2500
Reference Impedance vs. Frequency
1
Off State Cathode Current (A)
VREF=0
2000
Reference Impedance ()
IK=100mA TA=25C
1500
5 00 m
1000
3 00 m
500
2 00 m
0
-5 0 0 -5
0
5
10
15
20
25
30
1 00 m 1k
2k
5k
1 0k
2 0k
5 0k 1 00 k 2 00 k
Cathode Voltage (V)
Frequency (Hz)
Stability Boundary Conditions
100 90
TA=25C VKA=VREF Stable VKA=3.3V
Cathode Current (mA)
80 70 60 50 40 30 20 10 0 0.001 0.01 0.1 1
Load Capacitance (F)
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Packaging Information
SOT-23
D B
3 E 1 2 H
S e
A
A1
L
C
Dim A A1 B C D E e H L
M illim et er s M in. 1. 0 0 0. 0 0 0. 3 5 0. 1 0 2. 7 0 1. 4 0 1. 9 0 B SC 2. 4 0 0. 3 7 3. 0 0 0. 0 94 0. 0 01 5 M ax. 1. 3 0 0. 1 0 0. 5 1 0. 2 5 3. 1 0 1. 8 0 M in. 0. 0 39 0. 0 00 0. 0 14 0. 0 04 0. 1 06 0. 0 55
Inc he s M ax. 0. 0 51 0. 0 04 0. 0 20 0. 0 10 0. 1 22 0. 0 71 0. 0 75 B SC 0. 11 8
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Packaging Information
SOT-23-5
e1
5
4 E1 E
1
2
3
e
b
D
A2
A
a
L1
A1
L2
L
Dim A A1 A2 D E E1 L L1 L2 N
Mi ll imet er s Min . 0. 9 5 0. 0 5 0. 9 0 2. 8 2. 6 1. 5 0. 3 5 0. 2 0 BSC 0. 5 5 0 10 0 0. 7 0. 0 20 Ma x . 1. 4 5 0. 1 5 1. 3 0 3. 0 0 3. 0 0 1. 7 0 0. 5 5 Min . 0. 0 37 0. 0 02 0. 0 35 0. 11 0 0. 1 02 0. 0 59 0. 0 14
Inc hes Ma x . 0. 0 57 0. 0 06 0. 0 51 0. 11 8 0. 11 8 0. 0 67 0. 0 22 0. 0 08 B SC 0. 0 28 5 10
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Packaging Information
SOT-89
D D1
a H 1 L B1 e e1 C B 2 3 E
A a
D im A B B1 C D D1 e e1 E H L
M illim eters M in. 1.40 0.40 0.35 0.35 4.40 1.35 1.50 B SC 3.00 B SC 2.29 3.75 0.80 2.60 4.25 1.20 10 0.090 0.148 0.031 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
Inches M ax. 0.063 0.022 0.019 0.017 0.181 0.072 0.059 BSC 0.118 B SC 0.102 0.167 0.047 10
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Packaging Information
TO-92
3 J e e1 2 1 L1 Q A L SEATING PLANE E S D
b2
b S
Dim A b b2 D E e e1 J L L1 Q S
Millimeters Min. Max. 4.318 5.334 0.406 0.406 4.445 3.175 2.413 1.143 3.429 12.70 1.27 2.921 2.032 2.667 0.559 0.559 5.207 4.191 2.667 1.397
Inches Min. 0.170 0.016 0.016 0.175 0.125 0.095 0.045 0.135 0.500 0.050 0 . 11 5 0.080 0.105 Max. 0.210 0.022 0.022 0.205 0.165 0.105 0.055
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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APL431
Packaging Information
SO-8
E
H
e1 D
e2
A1
A
1 L
0.004max.
Dim A A1 D E H L e1 e2 1
Mi ll im et er s Min . 1. 35 0. 10 4. 80 3. 80 5. 80 0. 40 0. 33 1. 27B S C 8 Max . 1. 75 0. 25 5. 00 4. 00 6. 20 1. 27 0. 51 Min. 0. 053 0. 004 0. 189 0. 150 0. 228 0. 016 0. 013
0.015X45
Inche s Max . 0. 069 0. 010 0. 197 0. 157 0. 244 0. 050 0. 020 0. 50B S C 8
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APL431
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)
Reference JEDEC Standard J-STD-020A APRIL 1999
temperature
Peak temperature
183C Pre-heat temperature
Time
Classification Reflow Profiles
Convection or IR/ Convection Average ramp-up rate(183C to Peak) 3C/second max. 120 seconds max Preheat temperature 125 25C) 60 - 150 seconds Temperature maintained above 183C Time within 5C of actual peak temperature 10 -20 seconds Peak temperature range 220 +5/-0C or 235 +5/-0C Ramp-down rate 6 C /second max. 6 minutes max. Time 25C to peak temperature VPR 10 C /second max. 60 seconds 215-219C or 235 +5/-0C 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 mm pkg. thickness < 2.5mm and pkg. volume < 350mm Convection 235 +5/-0 C VPR 235 +5/-0 C IR/Convection 235 +5/-0 C
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APL431
Reliability test program
Test item SOLDERABILITY HOLT PCT TST ESD Latch-Up Method MIL-STD-883D-2003 MIL-STD-883D-1005.7 JESD-22-B, A102 MIL-STD-883D-1011.9 MIL-STD-883D-3015.7 JESD 78 Description 245C , 5 SEC 1000 Hrs Bias @ 125 C 168 Hrs, 100 % RH , 121C -65C ~ 150C, 200 Cycles VHBM > 2KV, VMM > 200V 10ms , Itr > 100mA
Carrier Tape & Reel Dimensions
t P P1 D Po E
F W
Bo
Ao
Ko D1
T2
J C A B
T1
Application
A 330 1
B 62 +1.5 D
C 12.75+ 0.15 D1
J 2 0.5 Po
T1 12.4 0.2 P1 2.0 0.1 T1
T2 2 0.2 Ao 6.4 0.1 T2 1.4 Ao 3.1
W 12 0. 3 Bo 5.2 0. 1 W 8.0+ 0.3 - 0.3 Bo 3.0
P 8 0.1 Ko
E 1.750.1 t
SOP- 8
F 5.5 1
1.55 +0.1 1.55+ 0.25 4.0 0.1 B 60 1.0 D 1.5 +0.1 C 12.0 D1 F0.1MIN J
2.1 0.1 0.30.013 P 4.0 Ko 1.3 E 1.75 t 0.20.03 (mm)
Application
A 1781
2.5 0.15 9.0 0.5 Po 4.0 P1 2.0 0.05
SOT-23
F 3.5 0.05
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APL431
Application A 178 1 SOT-23-5 F 3.5 0.05 Application A 178 1 SOT-89 F 5.5 0.05 B 72 1.0 D 1.5 0.1 B 70 2 D 1.5 0.1 C J T1 8.4 2 P1 T2 1.5 0.3 Ao W 8.0 0.3 Bo 3.2 0.1 W 12 + 0.3 12 - 0.1 Bo 4.5 0.1 P 4 0.1 Ko 1.4 0.1 P 8 0.1 Ko E 1.75 0.1 t 0.20.033 E 1.75 0.1 t 13.0 + 0.2 2.5 0.15 D1 1.5 0.1 C Po 4.0 0.1 J
2.0 0.1 3.15 0.1 T1 14 2 P1 2.0 0.1 T2 1.3 0.3 Ao 4.8 0.1
13.5 0.15 3 0.15 D1 1.5 0.1 Po 4.0 0.1
1.80 0.1 0.30.013 (mm)
Carrier Tape & Reel Dimensions
H2 H2 H2A H2 A0 M H3 W2 H4 H W1 H1 W D T2 T T1 F1F2 P1 P P2 D1 D2
L
L1
40
C2 C1 B2 C0 A3 B1 B0
205
Box Dimensions
A2 A1
T3
T4
330 UNIT : mm
Application
A0 3.18~12 C2 7.8
A1 901 D 4.00.2 H2A
A2 761 D1
A3 301 D2
B0 901
B1 311 F1-F2 0.3 L
B2 761 M 2.50.5 L1 2.5 MIN W 18.00.2
C0 5.8 H 160.5 P 12.70.3 W1 6.00.2
C1 3.8 H1 90.5 P1 6.350.4 W2 1
TO-92
H2 0.5 MAX P2
F1=F2 2.5+0.2 0.36~0.53 9.0 MAX -0.1 H3 H4 H5=H0+M
0.5 MAX 27.0 MAX 20.0 MAX 18.50.5 11.0 MAX T T1 T2 T3 15 T4 1.7
50.80.5 0.55 MAX 1.42 MAX 0.36~0.68
(mm)
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003 15 www.anpec.com.tw
APL431
Cover Tape Dimensions
Application SOP- 8 SOT- 23 SOT- 23-5 SOT- 89 TO-92 Carrier Width 12 8 8 12 17.5~19 Cover Tape Width 9.3 5.3 5.3 9.3 5.0~7.0 Devices Per Reel 2500 3000 3000 1000 2000
Customer Service
Anpec Electronics Corp. Head Office : 5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : 886-2-89191368 Fax : 886-2-89191369
Copyright ANPEC Electronics Corp. Rev. C.1 - Jun., 2003
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