TL4051CIDCKT

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 0.5%, 50 ppm/°C – C Grade Low Output Noise…20 µVRMS (Typ) Wide Operating Current Range… 60 µA (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 1.2 V...DBZ (SOT-23-3) PACKAGE (TOP VIEW) CATHODE 1 Data-Acquisition Systems Power Supplies and Power-Supply Monitors Instrumentation and Test Equipment Process Control Precision Audio Automotive Electronics Energy Management/Metering Battery-Powered Equipment 1.2 V...DCK (SC-70) PACKAGE (TOP VIEW) ANODE 3 * ANODE 2 1 5 NC 4 NC * 2 CATHODE 3 * Pin 3 is attached to Substrate and must be connected to ANODE or left open. NC – No internal connection * Pin 2 is attached to Substrate and must be connected to ANODE or left open. Adjustable...DBZ (SOT-23-3) PACKAGE (TOP VIEW) Adjustable...DCK (SC-70) PACKAGE (TOP VIEW) FB CATHODE 1 NC 1 3 ANODE 2 ANODE CATHODE 5 FB 2 3 4 NC NC – No internal connection DESCRIPTION/ORDERING INFORMATION 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 µA (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. Copyright © 2007, Texas Instruments Incorporated 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: 0.5% initial accuracy and 50 ppm/°C temperature coefficient ADJ SC-70 – DCK SOT-23-3 – DBZ 1.2 V SC-70 – DCK (1) (2) (3) 2 ORDERABLE PART NUMBER Reel of 3000 TL4051AIDBZR Reel of 250 TL4051AIDBZT Reel of 3000 TL4051AIDCKR Reel of 250 TL4051AIDCKT Reel of 3000 TL4051A12IDBZR Reel of 250 TL4051A12IDBZT Reel of 3000 TL4051A12IDCKR Reel of 250 TL4051A12IDCKT Reel of 3000 TL4051BIDBZR Reel of 250 TL4051BIDBZT Reel of 3000 TL4051BIDCKR Reel of 250 TL4051BIDCKT Reel of 3000 TL4051B12IDBZR Reel of 250 TL4051B12IDBZT Reel of 3000 TL4051B12IDCKR Reel of 250 TL4051B12IDCKT Reel of 3000 TL4051CIDBZR Reel of 250 TL4051CIDBZT Reel of 3000 TL4051CIDCKR Reel of 250 TL4051CIDCKT Reel of 3000 TL4051C12IDBZR Reel of 250 TL4051C12IDBZT Reel of 3000 TL4051C12IDCKR Reel of 250 TL4051C12IDCKT TOP-SIDE MARKING (3) TN2_ 97_ TN8_ 9D_ TN3_ 98_ TN9_ 9E_ TN4_ 99_ TNU_ 9F_ 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. Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. The actual top-side marking has one additional character that designates the assembly/test site. Submit Documentation Feedback 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: 0.5% initial accuracy and 50 ppm/°C temperature coefficient ADJ SC-70 – DCK SOT-23-3 – DBZ 1.2 V SC-70 – DCK (1) (2) (3) (1) ORDERABLE PART NUMBER Reel of 3000 TL4051AQDBZR Reel of 250 TL4051AQDBZT Reel of 3000 TL4051AQDCKR Reel of 250 TL4051AQDCKT Reel of 3000 TL4051A12QDBZR Reel of 250 TL4051A12QDBZT Reel of 3000 TL4051A12QDCKR Reel of 250 TL4051A12QDCKT Reel of 3000 TL4051BQDBZR Reel of 250 TL4051BQDBZT Reel of 3000 TL4051BQDCKR Reel of 250 TL4051BQDCKT Reel of 3000 TL4051B12QDBZR Reel of 250 TL4051B12QDBZT Reel of 3000 TL4051B12QDCKR Reel of 250 TL4051B12QDCKT Reel of 3000 TL4051CQDBZR Reel of 250 TL4051CQDBZT Reel of 3000 TL4051CQDCKR Reel of 250 TL4051CQDCKT Reel of 3000 TL4051C12QDBZR Reel of 250 TL4051C12QDBZT Reel of 3000 TL4051C12QDCKR Reel of 250 TL4051C12QDCKT TOP-SIDE MARKING (3) TN5_ 9A_ TNV_ 9G_ TN6_ 9B_ TNW_ 9H_ TN7_ 9C_ TNY_ 9J_ 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. Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. The actual top-side marking has one additional character that designates the assembly/test site. Submit Documentation Feedback 3 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. TL4051x12 only Absolute Maximum Ratings (1) over free-air temperature range (unless otherwise noted) MIN VZ Continuous cathode voltage IZ Continuous cathode current θJA Package thermal impedance (2) (3) TJ Operating virtual junction temperature Tstg Storage temperature range (1) (2) (3) –10 MAX V 20 mA DBZ package 206 DCK package 252 –65 UNIT 15 °C/W 150 °C 150 °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. Recommended Operating Conditions IZ Cathode current VZ Reverse breakdown voltage (adjustable version) TA Free-air temperature (1) 4 MIN MAX (1) 12 mA 10 V I temperature –40 85 Q temperature –40 125 See parametric tables Submit Documentation Feedback UNIT °C 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 1.225 60 39 UNIT V mV 60 IZ,min Minimum cathode current IZ = 10 mA 25°C ±20 ±20 ±20 IZ = 1 mA 25°C ±15 ±15 ±15 αVZ Average temperature coefficient of reverse breakdown voltage 25°C ±15 ±15 ±15 Reverse breakdown voltage change with cathode current change IZ,min < IZ < 1 mA ZZ Reverse dynamic impedance IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ 25°C 0.5 0.5 0.5 Ω eN Wideband noise IZ = 100 µA, 10 Hz ≤ f ≤ 10 kHz 25°C 20 20 20 µVRMS Long-term stability of reverse breakdown voltage t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA 25°C 120 120 120 ppm Thermal hysteresis (1) ∆TA = –40°C to 125°C 0.36 0.36 0.36 mV/V Full range IZ = 100 µA Full range 25°C DVZ DIZ VHYST (1) 65 ±50 0.3 Full range 25°C 1 mA < IZ < 12 mA 65 1.1 ±50 0.3 1.5 1.8 Full range 6 65 1.1 8 6 ppm/°C ±50 0.3 1.5 1.8 µA 1.1 1.5 1.8 8 6 mV 8 Thermal hysteresis is defined as VZ,25°C (after cycling to –40°C) – VZ,25°C (after cycling to 125°C). Submit Documentation Feedback 5 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 1.225 60 39 UNIT V mV 60 IZ,min Minimum cathode current IZ = 10 mA 25°C ±20 ±20 ±20 IZ = 1 mA 25°C ±15 ±15 ±15 αVZ Average temperature coefficient of reverse breakdown voltage 25°C ±15 ±15 ±15 Reverse breakdown voltage change with cathode current change IZ,min < IZ < 1 mA ZZ Reverse dynamic impedance IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ 25°C 0.5 0.5 0.5 Ω eN Wideband noise IZ = 100 µA, 10 Hz ≤ f ≤ 10 kHz 25°C 20 20 20 µVRMS Long-term stability of reverse breakdown voltage t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA 25°C 120 120 120 ppm Thermal hysteresis (1) ∆TA = –40°C to 125°C 0.36 0.36 0.36 mV/V Full range IZ = 100 µA DVZ DIZ VHYST (1) 65 ±50 0.3 Full range 25°C 1 mA < IZ < 12 mA 65 Full range 25°C 6 TYP 1.1 ±50 0.3 1.5 1.8 Full range 6 1.1 1.8 6 0.3 ppm/°C 1.1 1.5 1.8 8 Thermal hysteresis is defined as VZ,25°C (after cycling to –40°C) – VZ,25°C (after cycling to 125°C). µA ±50 1.5 8 Submit Documentation Feedback 65 6 mV 8 TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 TL4051xI (Adjustable Version) Electrical Characteristics full range TA = –40°C to 85°C (unless otherwise noted) PARAMETER VREF TEST CONDITIONS Reference voltage IZ = 100 µA, VZ = 5 V Reference voltage tolerance (1) IZ = 100 µA, VZ = 5 V IZ,min Minimum cathode current DVREF DIZ Reference voltage change with cathode current change TL4051AI TA MIN 25°C Reference voltage change with output voltage change IFB Feedback current αVREF eN VHYST TL4051CI MAX MIN 1.212 TYP 1.212 –2.4 2.4 –6 6 –5.2 5.2 –6.4 6.4 –10.1 10.1 36 36 65 0.3 Full range 1.1 0.6 6 0.3 Full range –2.8 0.6 70 130 1.1 0.3 6 –1.69 –2.8 150 130 0.6 –1.69 6 mV –2.8 –3.5 70 150 ±20 ±20 ±20 IZ = 1 mA, VZ = 2.5 V 25°C ±15 ±15 ±15 25°C ±15 ±15 ±15 ±50 mV/V 130 150 25°C ±50 1.1 8 IZ = 10 mA, VZ = 2.5 V Full range µA 1.5 –3.5 70 mV 65 70 8 –3.5 Full range 36 1.5 8 –1.69 60 65 1.5 Full range 25°C 60 UNIT V 1.2 25°C IZ = 100 µA, VZ = 2.5 V MAX –1.2 25°C IZ = 1 mA TYP nA ppm/°C ±50 IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = VREF 25°C IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = 10 V 25°C 2 2 2 Wideband noise IZ = 100 µA, VZ = VREF, 10 Hz ≤ f ≤ 10 kHz 25°C 20 20 20 µVRMS Long-term stability of reverse breakdown voltage t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA 25°C 120 120 120 ppm Thermal hysteresis (2) ∆TA = –40°C to 125°C 0.3 0.3 0.3 mV/V Reverse dynamic impedance ZZ (1) (2) Average temperature coefficient of reference voltage (1) 1.212 Full range 1 mA < IZ < 12 mA MIN Full range 25°C IZ,min < IZ < 1 mA TL4051BI MAX 25°C 25°C DVREF DVKA TYP 0.3 0.3 0.3 Ω Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics. Thermal hysteresis is defined as VZ,25°C (after cycling to –40°C) – VZ,25°C (after cycling to 125°C). Submit Documentation Feedback 7 TL4051 PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE www.ti.com SLOS487 – JUNE 2007 TL4051xQ (Adjustable Version) Electrical Characteristics full range TA = –40°C to 125°C (unless otherwise noted) PARAMETER VREF TEST CONDITIONS Reference voltage IZ = 100 µA, VZ = 5 V Reference voltage tolerance (1) IZ = 100 µA, VZ = 5 V IZ,min Minimum cathode current DVREF DIZ Reference voltage change with cathode current change TL4051AQ TA MIN 25°C Reference voltage change with output voltage change IFB Feedback current αVREF eN VHYST 8 TL4051CQ MAX MIN 1.212 TYP 1.212 –2.4 2.4 –6 6 –7.4 7.4 –8.6 8.6 –12.2 12.2 36 36 70 0.3 Full range 1.1 0.6 6 0.3 Full range –2.8 0.6 70 130 1.1 0.3 6 –1.69 –2.8 150 130 0.6 –1.69 6 mV –2.8 –3.5 70 150 ±20 ±20 ±20 IZ = 1 mA, VZ = 2.5 V 25°C ±15 ±15 ±15 25°C ±15 ±15 ±15 ±50 mV/V 130 150 25°C ±50 1.1 8 IZ = 10 mA, VZ = 2.5 V Full range µA 1.5 –3.5 70 mV 65 75 8 –3.5 Full range 36 1.5 8 –1.69 60 70 1.5 Full range 25°C 60 UNIT V 1.2 25°C IZ = 100 µA, VZ = 2.5 V MAX –1.2 25°C IZ = 1 mA TYP nA ppm/°C ±50 IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = VREF 25°C IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ, VZ = 10 V 25°C 2 2 2 Wideband noise IZ = 100 µA, VZ = VREF, 10 Hz ≤ f ≤ 10 kHz 25°C 20 20 20 µVRMS Long-term stability of reverse breakdown voltage t = 1000 h, TA = 25°C ± 0.1°C, IZ = 100 µA 25°C 120 120 120 ppm Thermal hysteresis (2) ∆TA = –40°C to 125°C 0.3 0.3 0.3 mV/V Reverse dynamic impedance ZZ (1) (2) Average temperature coefficient of reference voltage (1) 1.212 Full range 1 mA < IZ < 12 mA MIN Full range 25°C IZ,min < IZ < 1 mA TL4051BQ MAX 25°C 25°C DVREF DVKA TYP 0.3 0.3 0.3 Ω Reference voltage tolerance and average temperature coefficient change with output voltage (VZ). See Typical Characteristics. Thermal hysteresis is defined as VZ,25°C (after cycling to –40°C) – VZ,25°C (after cycling to 125°C). Submit Documentation Feedback 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 -0.500 -40 -20 0 20 40 60 80 Temperature – °C 100 0.1 100 120 1k 10k 100k 1M Frequency – Hz OUTPUT IMPEDANCE vs FREQUENCY NOISE VOLTAGE vs FREQUENCY 1000 1000 Voltage Noise – nV/ÖHz IREF = 1 mA Impedance – W 100 VOUT = 10 V 10 VOUT = 5 V 1 VOUT = 2.5 V 800 600 400 200 VOUT = 1.23 V 0.1 100 0 1k 10k 100k 1M 1 10 100 1k 10k 100k Frequency – Hz Frequency – Hz Submit Documentation Feedback 9 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 1.4 80 TA = 25°C Reverse Current – µA TA = –40°C Output Saturation – V 1.2 1 TA = 85°C 0.8 TA = 125°C 0.6 60 40 TA = 25°C 20 TA = -40°C 0.4 0 0.0 0.2 0 0 10 TA = 125°C 2 4 6 8 Output Current – mA 10 12 Submit Documentation Feedback 0.4 0.8 1.2 Reverse Voltage – V 1.6 2 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 1.195 Output Voltage – V -40 -20 0 20 40 60 80 100 Temperature – °C FEEDBACK CURRENT vs OUTPUT VOLTAGE 120 TA = 125°C 100 Feedback Current – nA Reference Voltage – V 1.216 TA = 85°C 80 TA = 25°C 60 TA = –40°C 40 20 0 0 2 4 6 Output Voltage – V Submit Documentation Feedback 8 10 11 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. SOT-23 Pin Connections There is a parasitic Schottky diode connected between pins 2 and 3 of the SOT-23 packaged device. Thus, pin 3 of the SOT-23 package must be left floating or connected to pin 2. 12 Submit Documentation Feedback 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. Adjustable Shunt Regulator Cathode and Load Currents In a typical shunt regulator configuration (see Figure 4), an external resistor, RS, is connected between the supply and the cathode of the TL4051. RS must be set properly, as it sets the total current available to supply the load (IL) and bias the TL4051 (IZ). In all cases, IZ must stay within a specified range for proper operation of the reference. Taking into consideration one extreme in the variation of the load and supply voltage (maximum IL and minimum VS), RS must be small enough to supply the minimum IZ required for operation of the regulator, as given by data sheet parameters. At the other extreme, maximum VS and minimum IL, RS must be large enough to limit IZ to less than its maximum recommended rating of 12 mA. RS is calculated as shown in Equation 1. ǒVS * VZǓ RS + (I L ) I Z) (1) VS RS IZ + IL IL VZ IZ TL4051x12 Figure 4. Shunt Regulator Submit Documentation Feedback 13 PACKAGE OPTION ADDENDUM www.ti.com 13-Jul-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL4051A12IDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN8U Samples TL4051A12IDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN8U Samples TL4051A12QDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TNVU Samples TL4051A12QDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TNVU Samples TL4051A12QDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 9GU Samples TL4051AIDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN2U Samples TL4051AIDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN2U Samples TL4051AIDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 97U Samples TL4051AQDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TN5U Samples TL4051AQDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 9AU Samples TL4051B12IDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 (TN93, TN9U) Samples TL4051B12IDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 (TN93, TN9U) Samples TL4051B12QDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 (TNW3, TNWU) Samples TL4051B12QDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 9HU Samples TL4051BIDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN3U Samples TL4051BIDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN3U Samples TL4051BIDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 98U Samples TL4051BQDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TN6U Samples TL4051BQDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 9BU Samples TL4051C12IDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TNUU Samples Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 13-Jul-2022 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TL4051C12IDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TNUU Samples TL4051C12IDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 9FU Samples TL4051C12QDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TNYU Samples TL4051C12QDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TNYU Samples TL4051C12QDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 9JU Samples TL4051CIDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN4U Samples TL4051CIDBZT ACTIVE SOT-23 DBZ 3 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 TN4U Samples TL4051CIDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 99U Samples TL4051CQDBZR ACTIVE SOT-23 DBZ 3 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 TN7U Samples TL4051CQDCKR ACTIVE SC70 DCK 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 125 9CU Samples (1) The marketing status values are defined as follows: 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. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of