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ATtiny43U датащи(PDF) 159 Page - ATMEL Corporation

номер детали ATtiny43U
подробное описание детали  8-bit Microcontroller with 4K Bytes In-System Programmable Flash and Boost Converter
PDF  182 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATtiny43U датащи(HTML) 159 Page - ATMEL Corporation

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159
8048B–AVR–03/09
20.7
Boost Converter Characteristics
Table 20-7.
Characteristics of Boost Converter. T = -20
°C ... +85°C, unless otherwise noted
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VSTART
Start Voltage
1.05
1.2
1.35
V
V
BAT
Input Voltage
0.7
1.8
V
VSTOP
Shutdown Voltage
0.45
0.7
V
VBOOST
1.0
V
VCC
Output Voltage
Active Mode, I
LOAD > 1mA
2.7
3.0
3.3
V
Low Current Mode
1.8
3.6
V
ILOAD
Load Current
VBAT = 0.7V
0
10
mA
V
BAT = 1.0V
0
30
mA
VRPP
Output Voltage Ripple
VBAT = 1.0V, ILOAD = 30mA, CLOAD = 22µF
100
mV
tSTART
Start-up Time
VBAT = Step Change from 0V to 1.2V
2
ms
IIN
Current consumption of entire
device
V
BAT = 0.45V, Converter in Stop Mode
MCU not powered
1µA
VBAT = 1.05V, Converter in Stop Mode
MCU not powered
2µA
VBAT = 1.2V, Active Low Current Mode
MCU in Power Down, WD disabled
5µA
V
BAT = 1.2V, Active Regulated Mode
MCU active, 4MHz
5mA
f
S
Switching frequency
75
100
125
kHz
T
S
Switching period
T
S = 1 / fS
8
10
13.3
µs
DSW
Duty Cycle
372
%
VBATOL
Lowest V
BAT voltage where
device recovers from overload
Output overload or short circuit removed
TBD
1.05
TBD
V
Load Regulation:
T = 25
°C, V
BAT = 1.2V
Boost converter in Active Mode
2.7
%
Line Regulation:
T = 25
°C, I
LOAD = 1mA
Boost converter in Active Mode
1.0
%
Temperature Regulation:
VBAT = 1.2V, ILOAD = 1mA
Boost converter in Active Mode
2.3
%
V
CC
LOADMIN
V
CC
LOADMAX
–
V
CC
LOADMAX
-----------------------------------------------------------------------------
V
CC
VBATMAX
V
CC
VBATMIN
–
V
CC
VBATNOM
---------------------------------------------------------------------------
V
CC
TEMPMAX
V
CC
TEMPMIN
–
V
CC
TEMPNOM
-----------------------------------------------------------------------------



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