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Shunt voltage references

TL4050B25-Q1

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2.5-V, 0.2%, 50-ppm/°C automotive precision micropower shunt voltage reference

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Data sheet

TL4050B25-Q1

ACTIVE
Data sheet Order now

Product details

VO (V) 2.5 Reference voltage Fixed Initial accuracy (Max) (%) 0.2 VO adj (Min) (V) 2.5 VO adj (Max) (V) 2.5 Iz for regulation (Min) (uA) 41 Rating Automotive Temp coeff (Max) (ppm/ degree C) 50 Operating temperature range (C) -40 to 125 Iout/Iz (Max) (mA) 20
VO (V) 2.5 Reference voltage Fixed Initial accuracy (Max) (%) 0.2 VO adj (Min) (V) 2.5 VO adj (Max) (V) 2.5 Iz for regulation (Min) (uA) 41 Rating Automotive Temp coeff (Max) (ppm/ degree C) 50 Operating temperature range (C) -40 to 125 Iout/Iz (Max) (mA) 20
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 SOT-SC70 (DCK) 5 4 mm² 2 x 2.1
  • Qualified for Automotive Applications
  • Fixed Output Voltages of 2.048 V, 2.5 V, 4.096 V, 5 V
  • 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: 41 µVRMS Typ
  • Wide Operating Current Range:
    60 μA Typ to 15 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in Extended Temperature Range: –40°C to 125°C
  • Qualified for Automotive Applications
  • Fixed Output Voltages of 2.048 V, 2.5 V, 4.096 V, 5 V
  • 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: 41 µVRMS Typ
  • Wide Operating Current Range:
    60 μA Typ to 15 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in Extended Temperature Range: –40°C to 125°C

The TL4050-Q1 family of shunt voltage references are versatile easy-to-use references suitable for a wide array of applications. The two-terminal 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 TL4050-Q1 is available in three initial tolerances, ranging from 0.1% (maximum) for the A grade to 0.5% (maximum) for the C grade. Thus, a great deal of flexibility is available 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 (typical), the TL4050-Q1 also is ideal for portable applications.

The TL4050x-Q1 characterization is for operation over an ambient temperature range of –40°C to 125°C.

The TL4050-Q1 family of shunt voltage references are versatile easy-to-use references suitable for a wide array of applications. The two-terminal 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 TL4050-Q1 is available in three initial tolerances, ranging from 0.1% (maximum) for the A grade to 0.5% (maximum) for the C grade. Thus, a great deal of flexibility is available 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 (typical), the TL4050-Q1 also is ideal for portable applications.

The TL4050x-Q1 characterization is for operation over an ambient temperature range of –40°C to 125°C.
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* Data sheet TL4050-Q1 Precision Micropower Shunt Voltage Reference datasheet (Rev. F) 19 Apr 2013
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019

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Reference designs

TIDA-01513 — Automotive High-Voltage and Isolation Leakage Measurements Reference Design

The function of this reference design is to monitor the isolation resistance of a high-voltage bus to the chassis ground. Monitoring the isolation strength of coupling devices and components from high voltage to the chassis ground is a necessary feature in HEV’s and EV’s as battery (...)
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SC70 (DCK) 5 View options
SOT-23 (DBZ) 3 View options

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