TXZ Family
Comparator
2017-10-11
10 / 14
Rev. 1.0
3.3. Example for use
The table below shows an example of detection voltage setting when the input signal voltage is about 0V in
normal condition and 1.5V when abnormality is detected.
Condition: DVDD5A=DVDD5B=AVDD5=5V, DVSSA=DVSSB=AVSS=0V
DAC: VREFH=5V,VREFL=0V, DAC accuracy
±
1LSB
Table 3.1 Setting example (Calculation value)
Reference
voltage(V)
DAC channel 0 setting value
Detection voltage
<DAC[7:0]>
Voltage(V)
Min(V)
Max(V)
0.5
00011010
0.508
0.466
0.533
0.8
00101001
0.801
0.759
0.826
1.0
00110100
1.016
0.974
1.040
Formula of detecting voltage
:
V(Max)= (DAC channel 0 setting v19.8mV+5mV
V(Min)= (DAC channel 0 setting voltage)-19.8mV-22mV
