TS431B Taiwan Semiconductor, TS431B Datasheet - Page 3
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TS431B
Manufacturer Part Number
TS431B
Description
Adjustable Precision Shunt Regulator
Manufacturer
Taiwan Semiconductor
Datasheet
1.TS431B.pdf
(8 pages)
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TS431/A/B
Electrical Characteristics (continued)
Note 4. Deviation of reference input voltage, VDEV, is defined as the maximum deviation of the reference over the full
Note 5. The dynamic output impedance, Rz, is defined as:
Test Circuits
When the device is programmed with two external resistors R1and R2 (see Figure 2). The dynamic output
impedance of the overall circuit, is defined as :
temperature range.
The average temperature coefficient of the reference input voltage αVref is defined as:
| αVref | = [ V
| Zka | = ∆Vka / ∆Ika
| Zka | = ∆v / ∆i | ≈ Zka | * ( 1 + R1 / R2)
Where:
Example: Maximum Vref=2.496V at 30
| αVref | = [ 4mV / 2495mV ] * 10
T2-T1
αVref
can be positive or negative depending on whether the slope is positive or negative.
= full temperature change.
DEV
/ Vref(25
o
C
) ] * 10
o
C, minimum Vref=2.492V at 0
3-8
6
(Ta=25
6
/ 70
/ T2 – T1
o
C
o
C, unless otherwise specified.)
≈ 23ppm/
…………………….. (PPM/
o
o
C
C, Vref=2.495V at 25
2003/12 rev. B
o
C)
o
C, ∆T=70
o
C