ST7LITE49M datasheet(146/188 Pages) STMICROELECTRONICS

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Electrical characteristics

ST7LITE49M

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13.3.3

Auxiliary Voltage Detector (AVD) thresholds

TA = -40 to 125 °C unless otherwise specified.

13.3.4

Voltage drop between AVD flag setting and LVD reset generation

Table 70.

Operating characteristics with AVD(1)

Refer to Section : Monitoring the VDD main supply.

Symbol

Parameter

Conditions

Min (2)

Not tested in production, guaranteed by characterization.

Typ(2) Max(2)

Unit

VIT+(AVD)

1=>0 AVDF flag toggle

threshold (VDD rise)

High Threshold

Med. Threshold

Low Threshold

4.0

3.4

2.6

4.4

3.7

2.9

4.8

4.1

3.2

VIT-(AVD)

0=>1 AVDF flag toggle

threshold (VDD fall)

High Threshold

Med. Threshold

Low Threshold

3.9

3.3

2.5

4.3

3.6

2.8

4.7

4.0

3.1

Vhys

AVD voltage threshold

hysteresis

VIT+(AVD)-VIT-(AVD)

150

Table 71. Voltage drop

Parameter

Min(1)

Not tested in production, guaranteed by characterization.

Typ(1)

Max(1)

Unit

AVD med. Threshold - AVD low. threshold

800

850

950

AVD high. Threshold - AVD low threshold

1400

1450

1550

AVD high. Threshold - AVD med. threshold

600

650

750

AVD low Threshold - LVD low threshold

100

200

250

AVD med. Threshold - LVD low threshold

950

1050

1150

AVD med. Threshold - LVD med. threshold

250

300

400

AVD high. Threshold - LVD low threshold

1600

1700

1800

AVD high. Threshold - LVD med. threshold

900

1000

1050

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