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Low
Consumption, High Precision |
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An ideal general-purpose rogrammable
voltage reference, the TS3431 offers an
extended emperature range, adjustable
output voltage (1.24 to 24V), low current
consumption (0.4mA to 100mA), high precision
and small surface-mounted package. The
TS3431 is available in the space-saving
SOT23-3L package and the standard TO92,
3-pin package. It is also pin-topin compatible
with the industry standard TL431. The
TS3431 has a low operating current of
0.4mA, which is ideal for switch-mode
power supplies (SMPS) requiring low standby
current for power savings.
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The TS3431’s low current consumption reduces the secondary-side current allowing the reduction of the overall power consumption for the entire power supply.
This environment-friendly feature is increasingly important, especially as many power supplies are continuously plugged in, with or without a load. |
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Comparison
between TS3431 and industry standard TL431 |
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P/N |
Precision
[%] |
Package |
Cathode to Anode Voltage |
VKa min
[V] |
VKa max
[V] |
TL431 |
2, 1 |
TO-92 |
2.5 |
36 |
TS3431 |
2, 1, 0.5
and 0.25 |
SOT23-3L
TO-92 |
1.24 |
24 |
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P/N |
Reference Voltage
Vref
[V] |
Temp. Coef. of Vref
Tc max
[°C] |
Operating Cathode Current |
IK min
[mA] |
IK max
[mA] |
TL431 |
2.5 |
100 |
1 |
100 |
TS3431 |
1.24 |
100 |
0.5 |
100 |
Voltage reference precision (at 1.24V) vs. temperature
Minimum operating current vs. temperature
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