ST7LITE1xB
13.3.3 Operating Conditions with Low Voltage Detector (LVD)
13.3.3.1 Operating Conditions with LVD at TA = -40 to 125°C, unless otherwise specified
Symbol
Parameter
Conditions
Min Typ Max Unit
VIT+(LVD)
Reset release threshold
(VDD rise)
VIT-(LVD)
Reset generation threshold
(VDD fall)
High Threshold
Med. Threshold
Low Threshold
High Threshold
Med. Threshold
Low Threshold
3.80 4.20 4.60
3.20 3.55 3.90
2.65 2.85 3.10
V
3.70 4.00 4.35
3.10 3.35 3.70
2.50 2.70 2.90
Vhys
VtPOR
tg(VDD)
IDD(LVD)
LVD voltage threshold hysteresis
VDD rise time rate 1)2)
Filtered glitch delay on VDD 1)
LVD/AVD current consumption
VIT+(LVD)-VIT-(LVD)
Not detected by the LVD
200
mV
100 ms/V
150
ns
200
µA
Notes:
1. The VDD rise time rate condition is needed to insure a correct device power-on and LVD reset. Not tested in production.
2. Use of LVD with capacitive power supply: with this type of power supply, if power cuts occur in the application, it is rec-
ommended to pull VDD down to 0V to ensure optimum restart conditions. Refer to circuit example in Figure 106 on
page 136 and note 4.
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