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CATHODE
ANODE
*
1
2
3
DCK (SC-70) PACKAGE
(TOP VIEW)
ANODE
NC
CATHODE
NC
NC
1
2
3
5
4
NC – No internal connection
DBZ (SOT-23-3) PACKAGE
(TOP VIEW)
«
Pin 3 is attached to Substrate and must
be connected to ANODE or left open.
TL4050-Q1
www.ti.com
SLOS588F –JUNE 2008–REVISED APRIL 2013
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
Check for Samples: TL4050-Q1
1
FEATURES
Capacitor Required
• Available in Extended Temperature Range:
• Qualified for Automotive Applications
–40°C to 125°C
• Fixed Output Voltages of 2.048 V, 2.5 V,
4.096 V, 5 V
APPLICATIONS
• Tight Output Tolerances and Low Temperature
• Data-Acquisition Systems
Coefficient
• Power Supplies and Power-Supply Monitors
– Max 0.1%, 50 ppm/°C – A Grade
• Instrumentation and Test Equipment
– Max 0.2%, 50 ppm/°C – B Grade
• Process Controls
– Max 0.5%, 50 ppm/°C – C Grade
• Precision Audio
• Low Output Noise: 41 μV
RMS
Typ
• Automotive Electronics
• Wide Operating Current Range:
60 μA Typ to 15 mA • Energy Management
• Stable With All Capacitive Loads; No Output • Battery-Powered Equipment
DESCRIPTION
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.
PACKAGE AND ORDERING INFORMATION
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, thermal data, and symbolization are available at www.ti.com/packaging.
1
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.
Copyright © 2008–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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