STLUX385A Datasheet, PDF (90/99 Pages) STMicroelectronics – Digital controller for lighting and power conversion applications

Electrical characteristics
STLUX385A
10.3.11 Analog comparator characteristics
Symbol
Table 55. Analog comparator characteristics
Parameter
Conditions
Min.⁽¹⁾ Typ. Max.⁽¹⁾ Unit
Comparator input voltage
V_{IN range}
(2)
0
1.23
V
Comparator 3 external input
V_{ICPM3 voltage range}
-40 ºC ≤ T_A ≤ 105 ºC ⁰
(2)(3)
1.23
V
V_offset Comparator offset error
15
mV
t_COMP Comparison delay time
50
ns
1. Data based on characterization results, not tested in production.
2. Maximum analog input voltage cannot exceed V_DDA.
3. The comparator 3 can be configured with the external reference voltage signal CPM3.
10.3.12 DAC characteristics
Symbol
Table 56. DAC characteristics
Parameter
Conditions
Min.⁽¹⁾ Typ. Max.⁽¹⁾ Unit
V_{full scale} DAC full scale
1.2
V_offset DAC offset
V_dac DAC out voltage
LSB
-40 ºC ≤ T_A ≤ 105 ºC _Voffset
INL Integral non linearity
1. Data based on characterization results, not tested in production.
1.26
V
4
mV
V_{full scale} mV
82
mV
0.12 LSB
(V
–V )
n[0,15]:Vdac(n) = -------^f--^u---^l-^l--^s--^c---^a---^l-^e-------------^o---^f--^f-^s---^e---^t-- × (n) + V
15
offset
(V
–V )
n[1-14]:Vdac(n) = -------^f--^u---^l-^l--^s--^c---^a---^l-^e-------------^o---^f--^f-^s---^e---^t-- × (n + INL) + V
15
offset
where:
• V_fullscale = V_fullscale(sample, T)
• V_offset = V_offset(sample, T)
• INL = INL(sample, n)
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