TSV714IPT datasheet(19/29 Pages) STMICROELECTRONICS

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DocID023707 Rev 2

19/29

TSV711, TSV712, TSV714

Application information

4.6

Initialization time

The TSV71x series of devices use a proprietary trimming topology that is initiated at each

device power-up and allows excellent Vio performance to be achieved. The initialization time

is defined as the delay after power-up which guarantees operation within specified

performances. During this period, the current consumption (ICC) and the input offset voltage

(Vio) can be different to the typical ones.

Figure 22. Initialization phase

The initialization time is VCC and temperature dependent. Table 6 sums up the

measurement results for different supply voltages and for temperatures varying from -40 °C

to 125 °C.

4.7

PCB layouts

For correct operation, it is advised to add a 10 nF decoupling capacitors as close as

possible to the power supply pins.

Table 6. Initialization time measurement results

VCC (V)

Temperature: -40 °C

Temperature: 25 °C

Temperature: 125 °C

Tinit (ms)

ICC phase 1 (mA)

Tinit (ms)

ICC phase 1 (mA)

Tinit (ms)

ICC phase 1 (mA)

1.8

0.33

3.2

0.40

0.35

0.46

3.3

2.9

1.4

0.95

1.3

0.34

1.2

2.4

3.2

0.85

2.4

0.31

2.9

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