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

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FEATURES APPLICATIONS

* Pin 3 is attached to Substrate and must

be connected to ANODE or left open.

CATHODE

ANODE

CATHODE

ANODE

1.2V...DBZ(SOT-23-3)PACKAGE

(TOP VIEW)

Adjustable...DBZ(SOT-23-3)PACKAGE

(TOP VIEW)

NC – No internal connection

ANODE

CATHODE

* Pin 2 is attached to Substrate and must

be connected to ANODE or left open.

ANODE NC

NCCATHODE

Adjustable...DCK(SC-70)PACKAGE

(TOP VIEW)

1.2V...DCK(SC-70)PACKAGE

(TOP VIEW)

NC – No internal connection

DESCRIPTION/ORDERING INFORMATION

TL4051

PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE

SLOS487 – JUNE 2007

• Data-Acquisition Systems

• 1.225-V Fixed and Adjustable (1.225-V to 10-V)

Outputs

• Power Supplies and Power-Supply Monitors

• Instrumentation and Test Equipment

• Tight Output Tolerances and Low

Temperature Coefficient

• Process Control

• Precision Audio

– Max 0.1%, 50 ppm/ ° C – A Grade

• Automotive Electronics

– Max 0.2%, 50 ppm/ ° C – B Grade

• Energy Management/Metering

– Max 0.5%, 50 ppm/ ° C – C Grade

• Battery-Powered Equipment

• Low Output Noise … 20 µ V

RMS

(Typ)

• Wide Operating Current Range …

60 µ A (Typ) to 12 mA

• Stable With All Capacitive Loads; No Output

Capacitor Required

• Available in

– Industrial Temperature: –40 ° C to 85 ° C

– Extended Temperature: –40 ° C to 125 ° C

The TL4051 series of shunt voltage references are versatile easy-to-use references suitable for a wide array of

applications. The device is available in a fixed 1.225-V output or an adjustable output whose voltage is

determined by an external resistor divider. The 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 TL4051 is offered in three initial tolerances, ranging from 0.1% (max) for the A grade to 0.5% (max) for the

C grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for

their applications. Packaged in the space-saving SOT-23-3 and SC-70 packages and requiring a minimum

current of 45 µ A (typ), the TL4051 also is ideal for portable applications.

The TL4051xI is characterized for operation over an ambient temperature range of –40 ° C to 85 ° C. The

TL4051xQ 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.

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 (29 pages)

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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 FEATURES APPLICATIONS • • • • • • • • • • • • • • 1.225-V Fixed and Adjustable (1.225-V to 10-V) Outputs Tight Output Tolerances and Low Temperature Coefficient – Max 0.1%, 50 ppm/°C – A Grade – Max 0.2%, 50 ppm/°C – B Grade – Max 0.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 ORDERING INFORMATION (1) TA DEVICE GRADE PACKAGE (2) VZ SOT-23-3 – DBZ A grade: 0.1% initial accuracy and 50 ppm/°C temperature coefficient ADJ SC-70 – DCK SOT-23-3 – DBZ 1.2 V SC-70 – DCK SOT-23-3 – DBZ –40°C to 85°C B grade: 0.2% initial accuracy and 50 ppm/°C temperature coefficient ADJ SC-70 – DCK SOT-23-3 – DBZ 1.2 V SC-70 – DCK SOT-23-3 – DBZ C grade: 0.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 ORDERING INFORMATION TA DEVICE GRADE PACKAGE (2) VZ SOT-23-3 – DBZ A grade: 0.1% initial accuracy and 50 ppm/°C temperature coefficient ADJ SC-70 – DCK SOT-23-3 – DBZ 1.2 V SC-70 – DCK SOT-23-3 – DBZ –40°C to 125°C B grade: 0.2% initial accuracy and 50 ppm/°C temperature coefficient ADJ SC-70 – DCK SOT-23-3 – DBZ 1.2 V SC-70 – DCK SOT-23-3 – DBZ C grade: 0.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 FUNCTIONAL BLOCK DIAGRAM CATHODE + _ VREF (see Note A) See Note B FB (see Note A) See Note B ANODE A. TL4051x (Adjustable) only B.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 TL4051x12I Electrical Characteristics full range TA = –40°C to 85°C (unless otherwise noted) PARAMETER Reverse breakdown voltage VZ TEST CONDITIONS TL4051A12I TA MIN TYP TL4051B12I MAX MIN TYP TL4051C12I MAX MIN TYP MAX IZ = 100 µA 25°C Reverse breakdown IZ = 100 µA voltage tolerance 25°C –1.2 1.2 –2.4 2.4 –6 6 Full range –5.2 5.2 –6.4 6.4 –10.1 10.1 25°C 1.225 39 1.225 60 39 1.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 TL4051x12Q Electrical Characteristics full range TA = –40°C to 125°C (unless otherwise noted) PARAMETER Reverse breakdown voltage VZ TEST CONDITIONS TL4051A12Q TA MIN TL4051B12Q MAX MIN TYP TL4051C12Q MAX MIN TYP MAX IZ = 100 µA 25°C Reverse breakdown IZ = 100 µA voltage tolerance 25°C –1.2 1.2 –2.4 2.4 –6 6 Full range –7.4 7.4 –8.6 8.6 –12.2 12.2 25°C 1.225 39 1.225 60 39 1.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 TYPICAL CHARACTERISTICS OUTPUT IMPEDANCE vs FREQUENCY TEMPERATURE DRIFT FOR DIFFERENT AVERAGE TEMPERATURE COEFFICIENTS 0.500 1000 IREF = 100 µA IREF = 150 µA 0.400 VREF Change – % 0.200 aVREF = 10.4 ppm/°C 100 Impedance – W 0.300 aVREF = 16 ppm/°C 0.100 0.000 -0.100 aVREF = 5.5 ppm/°C -0.200 VOUT = 10 V 10 VOUT = 5 V VOUT = 2.5 V 1 -0.300 VOUT = 1.23 V -0.400 -0.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 TYPICAL CHARACTERISTICS (continued) LARGE SIGNAL PULSE RESPONSE VFB = 8 V 14 12 10 70 8 60 50 Voltage – V Reverse Current – µA 80 VFB = 6 V 90 VFB = 4 V VFB = 0 V 100 VFB = 2 V REVERSE CHARACTERISTICS 40 30 20 6 4 2 10 0 0 0 2 4 6 Output Voltage – V 8 10 -2 -5 5 15 25 35 45 Time – µs OUTPUT SATURATION vs OUTPUT CURRENT REVERSE CURRENT vs REVERSE VOLTAGE 100 1.6 VADJ = VREF + 5 mV 1.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 TYPICAL CHARACTERISTICS (continued) REFERENCE VOLTAGE vs OUTPUT VOLTAGE REFERENCE VOLTAGE vs TEMPERATURE 1.22 TA = -40°C 1.212 1.208 Reference Voltage – V TA = 25°C TA = 85°C TA = 125°C 1.204 1.2 1.196 0 2 4 6 8 10 1.215 VOUT = VREF VOUT = 2.5 V 1.21 VOUT = 5 V VOUT = 10 V 1.205 1.2 1.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 APPLICATION INFORMATION RS = 30 kW VIN 1-Hz rate TL4051x12 VZ Figure 1. Start-Up Characteristics Test Circuit IR (+) TL4051x (Adj) (-) 2 V/step V Figure 2. Reverse Characteristics Test Circuit Output Capacitor The TL4051 does not require an output capacitor across CATHODE and ANODE for stability. However, if an output bypass capacitor is desired, the TL4051 is designed to be stable with all capacitive loads.
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TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 APPLICATION INFORMATION (continued) Adjustable Version The adjustable version allows VZ to be set by a user-defined resistor divider. The output voltage, VZ, is set according to the equation shown in Figure 3. VS RS VZ = VREF(1 + R2/R1) + VREF R1 - TL4051x (Adj) R2 Figure 3.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ TL4051A12IDBZR 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 TL4051A12IDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3 TL4051A12IDCKR 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 26-Jan-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 TL4051B12IDCKR SC70 DCK 5 3000 179.0 8.4 2.2 2.5 1.2 4.0 8.0 Q3 TL4051B12IDCKT SC70 DCK 5 250 179.0 8.4 2.2 2.5 1.2 4.0 8.0 Q3 TL4051B12QDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.0 Q3 TL4051B12QDBZT SOT-23 DBZ 3 250 179.0 8.4 3.15 2.95 1.22 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TL4051A12IDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 TL4051A12IDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 TL4051A12IDCKR SC70 DCK 5 3000 203.0 203.0 35.0 TL4051A12IDCKT SC70 DCK 5 250 203.0 203.0 35.0 TL4051A12QDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 TL4051A12QDBZT SOT-23 DBZ 3 250 203.0 203.0 35.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TL4051B12QDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 TL4051B12QDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 TL4051B12QDCKR SC70 DCK 5 3000 203.0 203.0 35.0 TL4051B12QDCKT SC70 DCK 5 250 203.0 203.0 35.0 TL4051BIDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 TL4051BIDBZT 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.