Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - voltage reference Shunt Adjustable SOT 23-3

* Pin 3 is attached to substrate and must be

connected to ANODE or left open.

DBZ (SOT-23) PACKAGE

(TOP VIEW)

CATHODE

ANODE

LM4040-EP

www.ti.com

SLOS746A – SEPTEMBER 2011– REVISED SEPTEMBER 2011

PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE

Check for Samples: LM4040-EP

FEATURES

SUPPORTS DEFENSE, AEROSPACE,

AND MEDICAL APPLICATIONS

• Fixed Output Voltage of 2.5 V

• Controlled Baseline

• Tight Output Tolerances and Low Temperature

Coefficient • One Assembly/Test Site

– Max 0.65%, 100 ppm/°C • One Fabrication Site

• Low Output Noise: 35 μV

RMS

Typ • Available in Military (–55°C/125°C)

Temperature Range

(1)

• Wide Operating Current Range: 45 μA Typ to

15 mA • Extended Product Life Cycle

• Stable With All Capacitive Loads; No Output • Extended Product-Change Notification

Capacitor Required

• Product Traceability

APPLICATIONS

• Data-Acquisition Systems

• Power Supplies and Power-Supply Monitors

• Instrumentation and Test Equipment

• Process Controls

• Precision Audio

• Automotive Electronics

• Energy Management

• Battery-Powered Equipment (1) Custom temperature ranges available

DESCRIPTION/ORDERING INFORMATION

The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array of

applications. The 2-pin fixed-output device requires no external capacitors for operation and is stable with all

capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature

coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The

LM4040 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer an output voltage

tolerance of 0.65%.

Packaged in a space-saving SOT-23-3 package and requiring a minimum current of 45 μA (typ), the LM4040

also is ideal for portable applications. The LM4040C25 is characterized for operation over an ambient

temperature range of –55°C to 125°C.

ORDERING INFORMATION

(1)

DEVICE ORDERABLE TOP-SIDE

PACKAGE

GRADE PART NUMBER MARKING

(2)

0.65% initial

accuracy

and

–55°C to 125°C 2.5 V SOT-23-3 (DBZ) Reel of 250 LM4040C25MDBZTEP SAGU

100 ppm/°C

temperature

coefficient

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2) The actual top-side marking has one additional character that designates the wafer fab/assembly site.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (12 pages)

PAGE 1
LM4040-EP SLOS746A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011 www.ti.com PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE Check for Samples: LM4040-EP FEATURES 1 • • Fixed Output Voltage of 2.5 V Tight Output Tolerances and Low Temperature Coefficient – Max 0.
PAGE 2
LM4040-EP SLOS746A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011 www.ti.com FUNCTIONAL BLOCK DIAGRAM CATHODE + _ ANODE Absolute Maximum Ratings (1) over free-air temperature range (unless otherwise noted) MIN –10 IZ Continuous cathode current TJ Operating virtual junction temperature Tstg Storage temperature range (1) –65 MAX UNIT 25 mA 150 °C 150 °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device.
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LM4040-EP SLOS746A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011 www.ti.
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LM4040-EP SLOS746A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS IZ = 150 µA VZ = 2.5 V 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -55 -35 -15 1000 5 25 45 65 85 105 125 Temperature (°C) 100 No Capacitor 1 µF Tantanlum Capacitor 10 VZ = 2.5 V IZ = 150 µA TJ = 25°C IZ,AC = 0.1 IZ 1 0.1 100 1000 1M 100 VZ = 2.5 V IZ = 1 mA TJ = 25°C IZ,AC = 0.1 IZ 10 1-µF Tantanlum Capacitor 1 VZ = 2.5 V TJ = 25°C 100 80 60 40 20 XC 0.1 100 1k 10k Frequency (Hz) 100k 0 0.
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LM4040-EP SLOS746A – SEPTEMBER 2011 – REVISED SEPTEMBER 2011 www.ti.com APPLICATION INFORMATION Start-Up Characteristics RS VIN LM4040 VZ 1-Hz Rate Figure 7. Test Circuit Output Capacitor The LM4040 does not require an output capacitor across cathode and anode for stability. However, if an output bypass capacitor is desired, the LM4040 is designed to be stable with all capacitive loads.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.com 31-May-2014 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
PAGE 8
PACKAGE MATERIALS INFORMATION www.ti.com 17-Sep-2011 TAPE AND REEL INFORMATION *All dimensions are nominal Device LM4040C25MDBZTEP Package Package Pins Type Drawing SPQ SOT-23 250 DBZ 3 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 179.0 8.4 Pack Materials-Page 1 3.15 B0 (mm) K0 (mm) P1 (mm) 2.95 1.22 4.0 W Pin1 (mm) Quadrant 8.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 17-Sep-2011 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM4040C25MDBZTEP SOT-23 DBZ 3 250 203.0 203.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.