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STLUX385ATR Datasheet(PDF) 71 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) 71 Page - STMicroelectronics

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STLUX385A
Electrical characteristics
10.3
Operating conditions
The device must be used in operating conditions that respect the parameters in the table
below. In addition, full account must be taken for all physical capacitor characteristics and
tolerances.
Table 34. Thermal characteristics
Symbol
Ratings
Max.
Unit
T
STG
Storage temperature range
-65 to 150
ºC
T
J
Maximum junction temperature
150
Table 35. General operating conditions
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
f
CPU
Internal CPU clock
frequency
-40
≤ T
A ≤
105 °C
0
16
MHz
V
DD1
,
V
DDA1
Operating voltages
3
(1)
1.
The external power supply can be within range from 3 V up to 5.5 V although IC performances are
optimized for power supply equal to 3.3 V.
5.5
(1)
V
V
DD
, V
DDA
Nominal operating voltages
3.3
(1)
5
(1)
V
OUT
Core digital power supply
1.8
(2)
2.
Internal core power supply voltage.
C
VOUT
: capacitance of
external capacitor
(3)
3.
Care should be taken when the capacitor is selected due to its tolerance, its dependency on temperature,
DC bias and frequency.
at 1 MHz
470
3300
nF
ESR of external capacitor
(2)
0.05
0.2
Ω
ESL of external capacitor
(2)
15
nH
Θ
JA
(4)
4.
To calculate P
Dmax
(T
A
), use the formula P
Dmax
= (T
Jmax
- T
A
)/
Θ
JA
.
FR4 multilayer PCB
80
°C/W
T
A
Ambient temperature
Pd=100 mW
-40
105
°C
Table 36. Operating conditions at power-up/power-down
Symbol
Parameter
Conditions
Min.(1)
Typ.
Max.(1)
Unit
t
VDD
V
DD
rise time rate
2 μs/V
1 sec/V
(2)
V
DD
fall time rate
2 μs/V
1 sec/V
(2)
t
TEMP
Reset release delay
V
DD
rising
3
ms



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