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RT5021 データシート(PDF) 17 Page - Richtek Technology Corporation

部品番号 RT5021
部品情報  Channels DC/DC PMU with Li-ion Battery Charger
PDF  67 Pages
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メーカー  RICHTEK [Richtek Technology Corporation]
ホームページ  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT5021 データシート(HTML) 17 Page - Richtek Technology Corporation

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RT5021
17
DS5021-01 April 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
Note 1. Stresses beyond those listed
“Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may
affect device reliability.
Note 2.
θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is
measured at the exposed pad of the package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
I
2
C
SDA, SCLK Input High Level
Threshold
1.4
--
--
V
SDA, SCLK Input Low Level
Threshold
-
--
0.6
V
SCLK Clock Rate
fSCL
--
--
400
kHz
Hold Time (repeated) START
Condition.
After this period, the first clock
pulse is generated.
tHD,STA
0.6
--
--
μs
LOW Period of the SCL Clock
tLOW
1.3
--
--
μs
HIGH Period of the SCL Clock
tHIGH
0.6
--
--
μs
Set-Up Time for a Repeated
START Condition
tSU,STA
0.6
--
--
μs
Data Hold Time
tHD,DAT
0
--
0.9
μs
Data Set-Up Time
tSU,DAT
100
--
--
ns
Set-Up Time for STOP
Condition
tSU,STO
0.6
--
--
μs
Bus Free Time between a
STOP and START condition
tBUF
1.3
--
--
μs
Rise time of both SDA and
SCL signals
tR
20
--
300
ns
Fall Time of Both SDA and
SCL Signals
tF
20
--
300
ns
SDA and SCL Output Low Sink
Current
IOL
SDA or SCL voltage = 0.4V
2
--
--
mA
(VSYS = 3.3V, TA = 25
°C, unless otherwise specified)



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