Datasheet

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

FEATURES

APPLICATIONS

* Pin 3 is attached to substrate and must be

connected to ANODE or left open.

DBZ (SOT-23) PACKAGE

(TOP VIEW)

CATHODE

ANODE

DCK (SC-70) PACKAGE

(TOP VIEW)

ANODE

CATHODE

ANODE

LP (TO-92/TO-226) PACKAGE

(TOP VIEW)

NC – No internal connectionNC – No internal connection

NC – No internal connection

DESCRIPTION/ORDERING INFORMATION

LM4040

www.ti.com

.................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008

PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE

• Fixed Output Voltages of 2.048 V, 2.5 V, 3 V,

4.096 V, 5 V, 8.192 V, and 10 V

• Tight Output Tolerances and Low Temperature

Coefficient

– Max 0.1%, 100 ppm/ ° C – A Grade

– Max 0.2%, 100 ppm/ ° C – B Grade

– Max 0.5%, 100 ppm/ ° C – C Grade

– Max 1.0%, 150 ppm/ ° C – D Grade

• Low Output Noise … 35 μ V

RMS

Typ

• Wide Operating Current Range … 45 μ A Typ to

15 mA

• Stable With All Capacitive Loads; No Output

Capacitor Required

• Available in Extended Temperature

Range … – 40 ° C to 125 ° C

• Data-Acquisition Systems

• Power Supplies and Power-Supply Monitors

• Instrumentation and Test Equipment

• Process Controls

• Precision Audio

• Automotive Electronics

• Energy Management

• Battery-Powered Equipment

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 four output voltage

tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility

is offered to designers in choosing the best cost-to-performance ratio for their applications.

Packaged in space-saving SC-70 and SOT-23-3 packages and requiring a minimum current of 45 μ A (typ), the

LM4040 also is ideal for portable applications. The LM4040xI is characterized for operation over an ambient

temperature range of – 40 ° C to 85 ° C. The LM4040xQ is characterized for operation over an ambient temperature

range of – 40 ° C to 125 ° C.

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.

UNLESS OTHERWISE NOTED this document contains

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (55 pages)

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LM4040 www.ti.com .................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE FEATURES 1 • • • • • • Fixed Output Voltages of 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V Tight Output Tolerances and Low Temperature Coefficient – Max 0.1%, 100 ppm/°C – A Grade – Max 0.2%, 100 ppm/°C – B Grade – Max 0.
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LM4040 SLOS456K – JANUARY 2005 – REVISED MARCH 2008 .................................................................................................................................................. www.ti.com ORDERING INFORMATION (1) TA DEVICE GRADE PACKAGE (2) VKA SC-70 (DCK) 2.048 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 2.5 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 3V SOT-23-3 (DBZ) TO-92/TO-226 (LP) –40°C to 85°C A grade: 0.
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LM4040 www.ti.com .................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008 ORDERING INFORMATION (continued) TA DEVICE GRADE PACKAGE (2) VKA SC-70 (DCK) 2.048 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 2.5 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 3V SOT-23-3 (DBZ) TO-92/TO-226 (LP) –40°C to 85°C B grade: 0.
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LM4040 SLOS456K – JANUARY 2005 – REVISED MARCH 2008 .................................................................................................................................................. www.ti.com ORDERING INFORMATION (continued) TA DEVICE GRADE PACKAGE (2) VKA SC-70 (DCK) 2.048 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 2.5 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 3V SOT-23-3 (DBZ) TO-92/TO-226 (LP) –40°C to 85°C C grade: 0.
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LM4040 www.ti.com .................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008 ORDERING INFORMATION (continued) TA DEVICE GRADE PACKAGE (2) VKA SC-70 (DCK) 2.048 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 2.5 V SOT-23-3 (DBZ) TO-92/TO-226 (LP) SC-70 (DCK) 3V SOT-23-3 (DBZ) TO-92/TO-226 (LP) –40°C to 85°C D grade: 1.
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LM4040 SLOS456K – JANUARY 2005 – REVISED MARCH 2008 .................................................................................................................................................. www.ti.com ORDERING INFORMATION (continued) TA DEVICE GRADE VKA PACKAGE (2) 2.048 V C grade: 0.5% initial accuracy and 100 ppm/°C temperature coefficient 2.5 V SOT-23-3 (DBZ) 3V 5V –40°C to 125°C 2.048 V D grade: 1.0% initial accuracy and 150 ppm/°C temperature coefficient 2.
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LM4040 SLOS456K – JANUARY 2005 – REVISED MARCH 2008 .................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS VZ = 2.5 V IZ = 150 µA 50 ppm/°C 20 ppm/°C 7 ppm/°C 0.4 0.3 0.2 0.1 0 −0.1 −0.2 −0.3 −0.4 −20 0 20 40 60 80 Temperature (_C) 100 120 Figure 1. Temperature Drift for Different Average Temperature Coefficients 1000 No Capacitor 100 VZ = 2.
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LM4040 www.ti.com .................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008 APPLICATION INFORMATION Start-Up Characteristics RS VIN 1-Hz Rate LM4040 VZ Figure 7. Test Circuit Output Capacitor The LM4040 does not require an output capacitor across cathode and anode for stability.
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LM4040 SLOS456K – JANUARY 2005 – REVISED MARCH 2008 .................................................................................................................................................. www.ti.com Cathode and Load Currents In a typical shunt-regulator configuration (see Figure 9), an external resistor, RS, is connected between the supply and the cathode of the LM4040. RS must be set properly, as it sets the total current available to supply the load (IL) and bias the LM4040 (IZ).
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ LM4040A10IDBZR SOT-23 3000 179.0 8.4 DBZ 3 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.15 2.95 1.22 4.0 8.0 Q3 LM4040A10IDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3 LM4040A10IDCKR SC70 DCK 5 3000 179.0 8.4 2.2 2.5 1.2 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) LM4040A82IDBZR SOT-23 DBZ 3 3000 179.0 8.4 LM4040A82IDBZT SOT-23 DBZ 3 250 179.0 8.4 LM4040A82IDCKR SC70 DCK 5 3000 179.0 8.4 2.2 LM4040B10IDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 LM4040B10IDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 LM4040B10IDCKR SC70 DCK 5 3000 179.0 8.4 2.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant LM4040C41IDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3 LM4040C41IDCKR SC70 DCK 5 3000 179.0 8.4 2.2 2.5 1.2 4.0 8.0 Q3 LM4040C50IDBZR SOT-23 DBZ 3 3000 178.0 9.2 3.08 2.8 1.27 4.0 8.0 Q3 LM4040C50IDBZT SOT-23 DBZ 3 250 178.0 9.2 3.08 2.8 1.27 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM4040A10IDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 LM4040A10IDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 LM4040A10IDCKR SC70 DCK 5 3000 203.0 203.0 35.0 LM4040A20IDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 LM4040A20IDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 LM4040A20IDCKR SC70 DCK 5 3000 203.0 203.0 35.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM4040A82IDCKR SC70 DCK 5 3000 203.0 203.0 35.0 LM4040B10IDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 LM4040B10IDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 LM4040B10IDCKR SC70 DCK 5 3000 203.0 203.0 35.0 LM4040B20IDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 LM4040B20IDBZT SOT-23 DBZ 3 250 203.0 203.0 35.
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PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM4040C50IDBZT SOT-23 DBZ 3 250 180.0 180.0 18.0 LM4040C50IDCKR SC70 DCK 5 3000 203.0 203.0 35.0 LM4040C50QDBZR SOT-23 DBZ 3 3000 180.0 180.0 18.0 LM4040C50QDBZT SOT-23 DBZ 3 250 180.0 180.0 18.0 LM4040C82IDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 LM4040C82IDCKR SC70 DCK 5 3000 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.