DocID5558 Rev 10 7/14
TS431 Application information
3 Application information
The TS431 is a general-purpose low-power programmable shunt voltage reference, capable
of operating with a cathode current as low as 60 µA and up to 30 mA.
The main static parameters of the TS431 voltage reference are specified in Table 3.
Since the TS431 is designed for general-purpose applications with a broad range of
cathode currents, voltages and loads, when designing with the device in applications
requiring fast dynamic response (turn-on/off and/or pulsed load conditions) it should be
considered that upon application of power, the time required for the V
KA
voltage to reach its
final value within a specified error range depends on several factors, among which the
temperature, cathode current and capacitive load inrush current are the most influential. The
dynamic response of the device to fast turn-on/off, load and temperature changes is
optimized when the cathode current is not in the lower end of the operating range
(I
K
> 500 µA).
