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TS2431AILT-TS2431BILT-TS2431ILT
PROGRAMMABLE SHUNT REFERENCE
ADJUSTABLE OUTPUT VOLTAGE2.5 to 24V SEVERAL PRECISION @ 25°C
±2%, ±1% and ±0.5% SINK CURRENT CAPABILITY
1 to 100mA INDUSTRIAL TEMPERATURE RANGE:
-40 to +105°C PERFORMANCES COMPATIBLE WITH
INDUSTRY STANDARD TL431
DESCRIPTIONThe TS2431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation
(-40 to +105°C). The output voltage may be set to
any value between 2.5V and 24V with an external
resistor bridge.
Available in SOT23-3 surface mount package, it
can be designed in applications where space
saving is a critical issue.
APPLICATION Computers Instrumentation Battery chargers Switch Mode Power Supply Battery operated equipments
ORDER CODE
LT = Tiny Package (SOT23-3) - only available in Tape & Reel (LT)
PIN CONNECTIONS (top view)
TS2431PROGRAMMABLE SHUNT VOLTAGE REFERENCE
TS2431
ABSOLUTE MAXIMUM RATINGS
OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICSTAMBIENT = 25°C (unless otherwise specified) Pd has been calculated with Tamb = 25°C, Tjunction =150°C and Rthja = 340°C/W for the SOT23-3 package Maximum power dissipation must be strictly observed to avoid the component destruction.
Note 1: Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
Note 2: |ΔVREF| is defined as the difference between the maximum and minimum values of VREF obtained over the full temperature range
Note 3: Refer to figure "Test circuit for Vka>Vref" page 4
TS2431
Reference voltage vs temperature
Cathode voltage vs cathode current
Reference input current vs temperature
Test circuit for Vka = Vref
Dynamic impedance vs frequency
TS2431
Off-State current vs temperature
Ratio of change in reference input voltage to
change in Vka voltage vs temperature
Phase and Gain vs frequency
Test circuit for Off-State current measurement
Test circuit for Vka > Vref
Test circuit for phase and gain measurement
TS2431
Pulse response at Ik=1mA
Pulse response at Ik = 1mA
Stability boundary conditions
Test circuit for pulse response at Ik = 1mA
Equivalent input noise vs frequency
Block Diagram
TS2431
.
or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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© 2002 STMicroelectronics - Printed in Italy - All Rights Reserved
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PACKAGE MECHANICAL DATA3 PINS - TINY PACKAGE (SOT-23)
