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STLUX385ATR Datasheet(PDF) 87 Page - STMicroelectronics

Part # STLUX385ATR
Description  Digital controller for lighting and power conversion applications
PDF  99 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLUX385ATR Datasheet(HTML) 87 Page - STMicroelectronics

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STLUX385A
Electrical characteristics
10.3.10
10-bit Sar ADC characteristics
Subject to general operating conditions for V
DDA
, f
MASTER
, and T
A
unless otherwise
specified.
2.
Data based on standard I
2
C protocol requirement, not tested in production.
3.
The maximum hold time of the start condition has only to be met if the interface does not stretch the low time.
4.
I
2
C multifunction signals require the high sink pad configuration and the interconnection of 1 K
Ω pull-up resistances.
5.
50 pF is the maximum load capacitance value to meet the I
2
C std timing specifications.
Table 52. ADC characteristics
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
N
Resolution
10
bit
R
ADCIN
ADC input impedance
1
M
Ω
f
ADC
ADC Clock frequency
1
6
(1)
1.
Frequency generated selecting the PLL source clock.
MHz
V
IN1
Conversion voltage
range for gain x1
01.25
(2)(3)
2.
Maximum input analog voltage cannot exceed V
DDA
.
3.
Exceeding the maximum voltage on the ADCIN[7:0] signals for the related conversion scale must be
avoided since the ADC conversion accuracy can be impacted.
V
IN2
Conversion voltage
range for gain x4
0
0.3125
(2)(3)
V
ref
ADC main reference
voltage
(4)
4.
Exceeding the maximum voltage on the ADCIN[7:0] signals for the related conversion scale must be
avoided since the ADC conversion accuracy can be impacted.
1.250
V
t
S
Sampling time
f
ADC
= 6 MHz
0.50
μs
t
STAB
Wakeup time from ADC
standby
30
t
CONV1
Single conversion time
including sampling time
f
ADC
= 6 MHz
2.42
t
CONV2
Continuous conversion
time including sampling
time
f
ADC
= 6 MHz
3



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