SPX385N-L-2-5/TR Exar Corporation, SPX385N-L-2-5/TR Datasheet

SPX385N-L-2-5/TR

Manufacturer Part Number

SPX385N-L-2-5/TR

Description

Micropower Voltage Reference

Manufacturer

Exar Corporation

Datasheets

1.SPX385N-L-2-5TR.pdf (9 pages)

2.SPX385AS-L-1-2TR.pdf (8 pages)

Specifications of SPX385N-L-2-5/TR

Package / Case

TO-92

Mounting Style

Through Hole

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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FEATURES

APPLICATIONS

The SPX385-2.5 is a micropower 2-terminal band-gap voltage reference with a very wide

operating current range from 20µA to 20mA that provides a stable voltage. The high stability of

this device is primarily the result of the low temperature coefficient Thin Film Resistor process and

Laser Trimming of the output voltage at the wafer level.

The SPX385-2.5 is available in a SOT-23, TO-92, SOIC-8 and SOT-89 package with an operating

temperature range of -40°C to 85°C. A 1.2 and 5 volt device is also available - SPX385-1.2 and

SPX385-5.

Date: 02/29/2008

Figure 1: Block Diagram

Temp Co 140ppm/°C

Battery Operating Equipment

Adjustable Supplies

Switching Power Supplies

Trimmed Bandgap ............................ 1% and 2%

Wide Operating Current ............... 20µA to 20mA

Extended Temperature Range ... -40°C to +85°C

Dynamic Impedance .............................. 1Ω max

Offered in SOT-23, TO-92, SOIC, and SOT-89

Improved Replacement for LM185/285/385-2.5V,

AS385-2.5

500k

SPX385-2.5 Micropower Voltage Reference

1.25V

Micropower Voltage Reference

Refer to page 4 for pinouts.

Cathode (K)

Error Amplifiers

Single Supply Amplifier

Monitors / VCR / TV

Personal Computers

Anode (A)

Now Available in Lead Free Packaging

Cathode

3 Pin SOT-23

SPX385

SPX385-2.5

N/C

BLOCK DIAGRAM

DESCRIPTION

Anode

Related parts for SPX385N-L-2-5/TR

SPX385N-L-2-5/TR Summary of contents

Page 1

... Micropower Voltage Reference Now Available in Lead Free Packaging Refer to page 4 for pinouts. Error Amplifiers Single Supply Amplifier Monitors / VCR / TV Personal Computers Cathode ( 1.25V Anode (A) SPX385-2.5 Micropower Voltage Reference 1 SPX385-2.5 N/C SPX385 3 Pin SOT-23 Cathode Anode DESCRIPTION BLOCK DIAGRAM © Copyright 2008 Exar Corporation ...

Page 2

Page 3

... Figure 6. Low Current Operating Characteristics SPX385-2 OUT C1 150pF 6 R2 1.5V to 27V Figure 7b. Precision 1µA to 1mA Current Source SPX385-2.5 Micropower Voltage Reference Cathode Voltage (V) KA 85°C 25°C -0°C 0 1.0 2.0 3 Cathode Voltage (V) KA SPX385-2.5 30V 150pF 68k 2 – LM312 OUT R2 © Copyright 2008 Exar Corporation ...

Page 4

... CATHODE ANODE N/C ANODE CATHODE Top View Top View SPX385-2.5 Micropower Voltage Reference 4 9V 200k 2.5V SPX385-2 15V 10V LM4250C 1.5M 150pF 22M 500k I ≅ 30µA Standby Current Q PACKAGE PINOUTS TO-92 ( ANODE N/C CATHODE Bottom View © Copyright 2008 Exar Corporation ...

Page 5

... E1 E VIEW A-A VIEW MAX 1.12 0.1 1.02 0.5 0.2 3.04 WITH PLATING 2.64 1.4 c 0.6 8º BASE METAL SPX385-2.5 Micropower Voltage Reference 5 SEE VIEW C Gauge Plane Seating Plane L Ø L1 Seating Plane C SIDE VIEW b SECTION B-B © Copyright 2008 Exar Corporation ...

Page 6

... D1 1.4 1 2.4 2.5 e 1.45 1.5 e1 2.9 3 Note: Dimensions in (mm) Date: 02/29/2008 PACKAGE: 3 PIN SOT- 5º(2x) L 8º(2x) MAX 0.48 1.2 0.53 Ro.15 0.43 4.6 1.75 4.25 2.6 1.55 b 3.1 SPX385-2.5 Micropower Voltage Reference © Copyright 2008 Exar Corporation ...

Page 7

... BSC - 1.27 1.04 REF 0.25 BSC - 8º - 15º BASE METAL SPX385-2.5 Micropower Voltage Reference 7 PACKAGE: 8 PIN NSOIC Ø L2 Seating Plane L Ø1 L1 Gauge Plane VIEW C Seating Plane SIDE VIEW SEE VIEW SECTION B-B WITH PLATING © Copyright 2008 Exar Corporation Ø ...

Page 8

... L 0.5 R 0.085 S1 0.045 W 0.016 D 0.175 a 4º Note: Dimensions in (inches) Date: 02/29/2008 L W NOM MAX - 0.195 R - 0.02 - 0.155 - 0.105 - 0.055 - 0.61 - 0.095 E - 0.06 - 0.022 - 0.195 - 6º SPX385-2.5 Micropower Voltage Reference 8 PACKAGE: 3 PIN TO- a(2x) © Copyright 2008 Exar Corporation ...

Page 9

... SPX385M-2.5/TR SPX385M1-2.5 SPX385M1-2.5/TR SPX385S-2.5 SPX385S-2.5/TR SPX385N-2.5 SPX385N-2.5/TR Available in lead free packaging. To order add “-L” suffix to part number. Example: SPX385S-2.5/TR = standard; SPX385S-L-2.5/TR = lead free /TR = Tape and Reel Pack quantity is 2000 for TO-92 and 2500 for SOT-23, SOT-89 and NSOIC. . Exar Corporation ...

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