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LM3554 Datasheet(PDF) 6 Page - Texas Instruments

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No. de pieza LM3554
Descripción Electrónicos  Synchronous Boost Converter with 1.2A Dual High Side LED Drivers and I2C Compatible
PDF  43 Pages
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

LM3554 Datasheet(HTML) 6 Page - Texas Instruments

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background image
t4
t2
t3
t5
t1
SCL
SDA_IN
SDA_OUT
LM3554
SNVS549A – JUNE 2009 – REVISED APRIL 2011
www.ti.com
Electrical Characteristics (continued)
Limits in standard typeface are for TA = +25°C. Limits in boldface type apply over the full operating ambient temperature
range (-30°C
≤ TA ≤ +85°C). Unless otherwise specified, VIN = 3.6V, VHWEN = VIN.
(1) (2)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
I2C-Compatible Timing Specifications (SCL, SDA) — See Figure 1
SCL Clock
1/t1
400
kHz
Frequency
Data In Setup
t2
Time to SCL
100
ns
High
Data Out
t3
Stable After
0
ns
SCL Low
SDA Low Setup
t4
Time to SCL
160
ns
Low (Start)
SDA High Hold
t5
Time After SCL
160
ns
High (Stop)
Figure 2. I2C Timing
6
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