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| AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n General Description The AME385-2.5 is a micropower 2-terminal band-gap voltage regulator diode. It operates over a 20A 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 AME385-2.5 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 package as well as the space saving SOT-23. n Functional Block Diagram VR Bandgap Cell Current Shunt n Features l Small packages: SOT-23, TO-92, SO-8 l Tolerates capacitive loads l Fixed reverse breakdown voltage of 2.5V l Tight voltage tolerance ------- 0.20%, 0.5% l Wide operating current ------- 20A to 20mA l Wide temperature range ----- -40oC to +85oC l Low temperature coefficient --100ppm/oC (max) l Excellent transient response VS GND n Typical Application RS VR n Applications l Portable electronics l Power supplies l Computer peripherals l Data acquisition systems l Battery chargers l Consumer electronics VS - VR RS = I 0.1F Value optional VR = 2.5V 1 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Pin Configuration SO-8 Top View 8 7 6 5 SOT-23 Top View AME 385-2.5 1. NC 2. NC 3. NC 4. 1 2 3 AME 385-2.5 1. + 2. 3. NC* 5. NC 6. NC 1 2 3 4 7. NC 8. + TO-92-3 Bottom View 1 2 3 TO-92-2 Bottom View AME 385-2.5 1. NC* 2. 3. + 1 2 AME 385-2.5 1. + 2. - * The NC pin must float or be connected to - (negative) 2 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Ordering Information AME385 x x x x x Special Feature Number of Pins Package Type Operating Temperature Range Accuracy Accuracy Operating Temperature Range E: -40OC to 85OC Package Type Number of Pins Special Feature D: 0.2% B: 0.5% A: TO-92 E: SOT-2X H: SO-8 A: 8 S: 2 T: 3 L: Low Profile Y: Lead Free & Low Profile Z: Lead Free 3 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Ordering Information (contd.) Part Number AME385DEET AME385DEETL AME385DEETY AME385DEETZ AME385DEHA Marking ACSww ACSww ACSww ACSww 385 DEHA yyww 385 DEHA yyww ABYww ABYww ABYww ABYww AME 385 BEAT yyww AME 385 BEAT yyww AME 385 BEAS yyww AME 385 BEAS yyww 385 BEHA yyww 385 BEHA yyww Accuracy 0.2% 0.2% 0.2% 0.2% 0.2% Package SOT-23 TSOT-23 TSOT-23 SOT-23 SO-8 Operating Temp. Range - 40 o C to + 85 o C - 40 o C to + 85 o C - 40 o C to + 85 o C - 40 o C to + 85 o C - 40 o C to + 85 o C AME385DEHAZ AME385BEET AME385BEETL AME385BEETY AME385BEETZ 0.2% 0.5% 0.5% 0.5% 0.5% SO-8 SOT-23 TSOT-23 TSOT-23 SOT-23 - 40 o C to + 85 o C - 40 o C to + 85 o C - 40 o C to + 85 o C - 40 o C to + 85 o C - 40 o C to + 85 o C AME385BEAT 0.5% TO-92-3 - 40 o C to + 85 o C AME385BEATZ 0.5% TO-92-3 - 40 o C to + 85 o C AME385BEAS 0.5% TO-92-2 - 40 o C to + 85 o C AME385BEASZ 0.5% TO-92-2 - 40 o C to + 85 o C AME385BEHA 0.5% SO-8 - 40 o C to + 85 o C AME385BEHAZ 0.5% SO-8 - 40 o C to + 85 o C * Package Option Part Number AME385XEAX AME385XEAX-1 Package TO-92 Taping TO-92 Bulk Lead Pitch 5.04mm 2.54mm Note: yyww & ww represents the date code * A line on top of the first letter represents lead free plating such as ACS. Please consult AME sales office or authorized Rep./Distributor for the availability of voltage accuracy and package type. 4 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Absolute Maximum Ratings Parameter Supply Current Maximum 50 Unit mA Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device n Recommended Operating Conditions Parameter Supply Current Ambient Temperature Range Junction Temperature Rating 100A ~ 20mA - 40 to + 85 - 40 to + 125 Unit o C C o n Thermal Information Parameter SOT-23 Thermal Resistance TO-92 SO-8 Maximum Junction Temperature Maximum Lead Temperature (10 Sec) Maximum 325 180 125 150 300 Unit o C/W o C C o 5 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Electrical Specifications Unless otherwise specified, TA = 0~70OC, I = 100A Parameter Reference Voltage, 0.2% Reference Voltage, 0.5% Minimum Current Reference Voltage Change With Current Maximum Operation Current Symbol VREF IMIN dV REF/I IMIN < I < 1mA 1mA < I < 20mA 20 1.5 5 Test Condition IREF = 100A Min 2.495 2.487 Typ 2.50 2.50 Max 2.505 2.513 20 3 20 mA Units V V A mV ILmax Reverse Dynamic Impedence Wideband Noise (rms) Long term Stability Reference Voltage Temp. Coeff. RDI Vn IR= 100mA, f=20Hz IR= 100mA, 10 Hz Ohm V ppm VREFTC 0oC < TA < 70oC 100 ppm/oC 6 AME, Inc. AME385-2.5 Normalized Percentage Change vs. Temp. 0.1 0 Micropower Voltage Reference Diode Reference Voltage Change vs. Current 4 Change of V REF (%) -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -50 0 50 I=100A Change of VREF (mV) 2 0 -2 100 150 0.01 1 100 Temperature (o C) Operation Current (mA) Reverse Characteristic 100 1 Forward Characteristic 10 85O C IR (uA) IF (mA) 25O C 0.125 1 25O C 85O C 0.1 0 0.65 1.3 0 0.001 0.1 10 VR (V) VF (V) Line Transient Response 25oC 5V/DIV VIN 1V/DIV VR 200S/DIV 7 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Package Dimension SOT-23 Top View D Side View SYMBOLS C MILLIMETERS MIN 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 A L 1.00 0.00 0.35 0.09 2.70 1.40 A1 b C D E E e H c1 e H L 1 0 1.90 BSC 2.40 3.00 0.0748 BSC 0.09449 0.11811 0.0138BSC o Front View 0.35BSC o 10 0 o 10 o TSOT-23 Top View D Side View C A1 b A SYMBOLS A+A1 b C D E L MILLIMETERS MIN 0.80 0.35 0.08 2.70 1.20 INCHES MIN 0.0315 0.0138 0.0031 0.1063 0.0472 MAX 1.30 0.50 0.25 3.10 1.80 MAX 0.0512 0.0197 0.0098 0.1220 0.0709 E e H c1 e H L 1 1.90 BSC 2.40 3.00 0.0748 BSC 0.09449 0.11811 0.0138BSC 0o 10o Front View 0.35BSC 0o 10o 8 A1 b A AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Package Dimension TO-92-2 (bulk pack) SYMBOLS Top View L e e1 w D MILLIMETERS MIN MAX 4.95 INCHES MIN 0.1575 MAX 0.1949 A b E e e1 L E-PIN C 1/16 4.00 0.40REF 3.94REF 2.54REF 1.27REF 12.70 2.29 0.35 3.80 0.76 4.95 15.49 0.0157REF 0.1551REF 0.1000REF 0.0500REF 0.5000 0.6098 R W 0.0902 0.0138 0.1496 0.0299 0.1949 Side View A R b E D Notes: 1. Package outline exclusive of any mold flashes dimension. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. TO-92-3 (bulk pack) SYMBOLS Top View L e e1 MILLIMETERS MIN MAX 4.95 INCHES MIN 0.1102 MAX 0.1949 A b E e D 2.80 0.40REF 3.94REF 2.54REF 1.27REF 12.70 2.29 0.35 3.80 0.76 4.95 15.49 0.0157REF 0.1551REF 0.1000REF 0.0500REF 0.5000 0.6098 w e1 L R W E-PIN C 1/16 0.0902 0.0138 0.1496 0.0299 0.1949 Side View A R b E D Notes: 1. Package outline exclusive of any mold flashes dimension. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. 9 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Package Dimension TO-92-2 (tape pack) SYMBOLS Top View L MILLIMETERS MIN MAX 4.95 INCHES MIN 0.1102 MAX 0.1949 A b E e D 2.80 0.40REF 2.40 3.94 0.0157REF 0.0945 0.1551 e e1 w 5.08REF 2.54REF 12.70 2.00 0.35 3.80 0.76 4.95 15.49 0.2REF 0.1REF 0.5000 0.6098 e1 L R W E-PIN C 1/16 0.0787 0.0138 0.1496 0.0299 0.1949 Side View A R b E D Notes: 1. Package outline exclusive of any mold flashes. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. TO-92-3 (tape pack) SYMBOLS A b E e e1 D MILLIMETERS MIN MAX 4.95 INCHES MIN 0.1102 MAX 0.1949 Top View L e e1 2.80 0.40REF 2.40 3.94 0.0157REF 0.0945 0.1551 w 5.08REF 2.54REF 12.70 2.00 0.35 3.80 0.76 4.95 15.49 0.2REF 0.1REF 0.5000 0.6098 L R W 0.0787 0.0138 0.1496 0.0299 0.1949 E-PIN C 1/16 Side View A R b E D Notes: 1. Package outline exclusive of any mold flashes. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. 10 AME, Inc. AME385-2.5 Micropower Voltage Reference Diode n Package Dimension SO-8 Top View Side View C SYMBOLS A A1 A2 B MILLIMETERS MIN MAX 1.75 0.25 INCHES MIN 0.05315 MAX 0.0689 E 1.35 0.10 0.00394 0.00984 0.058 REF 0.01299 0.02008 0.00748 0.00984 0.18898 0.19685 0.14961 0.15748 0.050 BSC 0.01575 0 o 1.473 REF 0.33 0.19 4.80 3.80 0.51 0.25 5.00 4.00 D c L C D E e Front View 7 o(4X) 1.27 BSC 0.40 0 o A2 L y 1.27 0.10 8 o 0.05 0.004 8 o B A1 e A 11 Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, 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) AME, Inc. , September 2003 Document: 2006-DS8803/8814-G E-Mail:Longman@rccn.com.cn Address:Room 2101, No.2 Building Yulan garden, No.50 Puhuitang Rd,Shanghai,PRC zip:200030 Tel : 86-21-64285731/32 ext:8033 Fax: 86-21-64393342 Sales Manager:Longman Xu |
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