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Analog Microelectronics, Inc.
AME41-ADJ
Micropower Voltage Reference Diode
n General Description
The AME41-ADJ is a micropower 3-terminal band-gap voltage regulator diode with a user adjustable output voltage. It operates over a 15A to 20mA current range. Each circuit is trimmed at wafer sort to provide a 0.20% and 0.50% initial tolerance. The design of the AME41ADJ allows for a large range of load capacitances and operating currents. The low start-up current makes these part ideal for battery applications. Analog Microelectronics offers this part in a TO-92 and SO-8 packages as well as the space saving SOT-23.
n Key Features
l Small packages: SOT-23, TO-92, SO-8 l Tolerates capacitive loads l User adjustable reverse breakdown voltage l Tight voltage tolerance ---------- 0.20%, 0.50% l Wide operating current ---------- 15A to 20mA l Wide temperature range -------- -40oC to +85oC l Low temperature coefficient --- 100ppm/oC (max) l Excellent transient response
n Applications
l l l l l l
Portable electronics Power supplies Computer peripherals Data acquisition systems Battery chargers Consumer electronics
n Functional Block Diagram
VR
n Typical Application
VS RS
A DJ
B andgap Cell Feedbac k
Current S hunt R1
VR
GND
1000pF V alue optional
I R2
RS =
VS - VR I 1.27 (R1 + R2) R1
VR =
1
Analog Microelectronics, Inc.
AME41-ADJ
Micropower Voltage Reference Diode
n Package Outline
SOT-23 Top View
-
TO-92 Bottom View ADJ
SO-8 Top View NC NC NC
+
-
+
NC NC ADJ
ADJ
+
-
* The NC pin must float or be connected to - (negative)
n Ordering Information
Part Number
AME41EEET
Accuracy
0.2%
Marking
ACYww AME 41EEHA yyww ACBww AME 41 BEAT yyww AME 41BEHA yyww
Package
SOT-23
Operating Temp. Range
-40OC to +85OC
AME41EEHA
0.2%
SO-8
-40OC to +85OC
AME41BEET
0.5%
SOT-23
-40OC to +85OC
AME41BEAT
0.5%
TO-92
-40OC to +85OC
AME41BEHA
0.5%
SO-8
-40OC to +85OC
Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and package type availability.
2
Analog Microelectronics, Inc.
AME41-ADJ
Micropower Voltage Reference Diode
n Absolute Maximum Ratings
Parameter Supply Current Maximum 50 Unit mA
n Recommended Operating Conditions
Parameter Supply Current Ambient Temperature Range Junction Temperature Rating 100A ~ 20mA -40 to +85 -40 to +125
o
Unit
C C
o
n Thermal Information
P a ra m e te r S O T-23 Therm al Res is tanc e TO -92 S O -8 M ax im um Junc tion Tem perature M ax im um Lead Tem perature ( 10 S ec ) M a x im u m 325 180 124 150 300
o o
Un it
C/W
C C
o
Caution: Stress above the listed absolute rating may cause permanent damage to the device
3
Analog Microelectronics, Inc.
AME41-ADJ
Micropower Voltage Reference Diode
n Electrical Specifications
Unless otherwise specified, TA = 25 o C, I = 100 A
PARAMETER
Reference Voltage, 0.2% VREF Reference Voltage, 0.5% Minimum Current Reference Voltage Change With Current ADJ Pin Current Reference Voltage Temp. Coeff. IMIN IMIN < I < 1mA dVREF/I 1mA < I < 20mA IADJ VREFTC 0oC < TA < 70oC 4 20 100 8 nA ppm/oC 1.5
SYMBOL
TEST CONDITIONS
TA = 25oC, IREF = 100A
MIN
1.247 1.244
TYP
1.250 1.250
MAX
1.253 1.256 15 3
UNITS
V V A
mV
4
Analog Microelectronics, Inc.
AME41-ADJ
Normalized Percentage Change vs. Temperature
0.1
Output Voltage Change (mV)
Micropower Voltage Reference Diode
Output Voltage Change vs. Current
0
2
25oC 85oC
% Change of VOUT
-0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -50
I = 100A
1
0
-1
0
50
100
150
0.01
1
Current (mA)
100
( C)
O
Reverse Characteristic
100A 1.0V
Forward Characteristic
10A
IR
1A
85oC
25oC 0.125V/DIV 25oC 85oC
100nA 0.0V 0.65V 1.3V 0.0V 1A 100A 10mA
VR
Transient Response
25 oC
5V/DIV
V IN
VR
0.5V/DIV
200S/DIV 5
Analog Microelectronics, Inc.
AME41-ADJ
Micropower Voltage Reference Diode
n Package Dimension
SOT-23
SYMBOLS A A1 b C D E e H L 1 R MILLIMETERS MIN 1.00 0.00 0.35 0.09 2.70 1.40 MAX 1.40 0.15 0.50 0.25 3.10 1.80 INCHES MIN 0.0394 0.0000 0.0138 0.0035 0.1063 0.0551 MAX 0.0551 0.0059 0.0197 0.0098 0.1220 0.0709
1.90 BSC 2.60 0.35 0
o
0.0748 BSC 0.1024 0.0138 0
o
3.00 0.55 9
o
0.1181 0.0197 9o
0.95(TYP)
0.0374(TYP)
SO-8
SYMBOLS A A1 A2 B
MILLIMETERS MIN 1.35 0.10 MAX 1.75 0.25 MIN
INCHES MAX 0.069 0.010
0.053 0.004
1.45 REF 0.33 0.19 4.80 3.80 0.51 0.25 5.00 4.00
0.057 REF 0.013 0.007 0.189 0.150 0.020 0.010 0.1970 0.157
C D E e H L y
1.27 BSC 5.80 0.40 6.20 1.27 0.10 0o 8o 0o
0.050 BSC 0.228 0.016 0.244 0.050 0.004 8o
6
Analog Microelectronics, Inc.
AME41-ADJ
Micropower Voltage Reference Diode
n Package Dimension
TO-92-3
SYMBOLS
A b E e e1 L R S1 W D a
MILLIMETERS MIN MAX
4.32 0.36 3.30 2.41 1.14 12.70 2.16 1.14 0.41 4.45 4 4.95 0.51 3.94 2.67 1.40 15.49 2.41 1.52 0.56 4.95 6
INCHES MIN MAX
0.170 0.014 0.130 0.095 0.045 0.500 0.085 0.045 0.016 0.175 4 0.195 0.020 0.155 0.105 0.055 0.610 0.095 0.060 0.022 0.195 6
NOTE: 1. PACKAGE OUTLINE EXCLUSIVE OF ANY MOLD FLASHES DIMENSION 2. PACKAGE OUTLINE EXCLUSIVE OF BURR DIMENSION
TO-92-2
SYMBOLS
A b E e e1 L R S1 W D a
MILLIMETERS MIN MAX
4.32 0.36 3.30 2.41 1.14 12.70 2.16 1.14 0.41 4.45 4
INCHES MIN MAX
0.170 0.014 0.130 0.095 0.045 0.500 0.085 0.045 0.016 0.175 4
4.95 0.51 3.94 2.67 1.40 15.49 2.41 1.52 0.56 4.95 6
0.195 0.020 0.155 0.105 0.055 0.610 0.095 0.060 0.022 0.195 6
NOTE: 1. PACKAGE OUTLINE EXCLUSIVE OF ANY MOLD FLASHES DIMENSION 2. PACKAGE OUTLINE EXCLUSIVE OF BURR DIMENSION
7
www.analogmicro.com
E-Mail: info@analogmicro.com
Life Support Policy: These products of Analog Microelectronics, Inc. are not authorized for use as critical components in lifesupport devices or systems, without the express written approval of the president of Analog Microelectronics, Inc. Analog Microelectronics, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. (c) Analog Microelectronics, Inc. , October 2001 Document: 2003-DS41-ADJ-D
Corporate Headquarters
Analog Microelectronics, Inc.
3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 Tel : (408) 988-2388 Fax: (408) 988-2489
Asia Pacific Headquarters
AME, Inc.
2F, 187 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel : 886 2 2627-8689 Fax : 886 2 2659-2989

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