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LM3555 Datasheet(PDF) 21 Page - Texas Instruments

Part # LM3555
Description  LM3555 Synchronous Boost Converter With 500-mA High-Side LED Driver and Dual-Mode Control Interface
PDF  37 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM3555 Datasheet(HTML) 21 Page - Texas Instruments

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background image
Shutdown
External
Torch
Standby
Output On
Strobe Flash
Level
Strobe Flash
Edge
Internal
Flash
External
Torch
Assist Light
Red
Indicator
21
LM3555
www.ti.com
SNVS594G – DECEMBER 2008 – REVISED APRIL 2016
Product Folder Links: LM3555
Submit Documentation Feedback
Copyright © 2008–2016, Texas Instruments Incorporated
Device Functional Modes (continued)
(1)
I2C/EN = 0
Table 1. Simple Mode Truth Table(1)
EN1
EN2
TORCH
MODE
0
0
0
shutdown
0
0
1
external torch
0
1
X
assist light
1
0
X
indicator
1
1
X
flash
(1)
I2C/EN = 1, SCL and SDA = X
Figure 40. I2C Control State Diagram
Table 2. I2C Mode Truth Table(1)
OEN
OM1
OM0
TEN
SEN
TORCH
STROBE
MODE
0
0
0
0
X
X
X
standby
0
0
0
1
X
0
X
standby
0
0
0
1
X
1
X
external torch
0
0
1
X
X
X
X
atandby
0
1
0
X
X
X
X
atandby
0
1
1
X
X
X
X
atandby
1
0
0
X
X
0
X
atandby
1
0
0
X
X
1
X
external torch
1
0
1
X
X
X
X
indicator
1
1
0
X
X
X
X
assist
1
1
1
X
0
X
X
internal flash
1
1
1
X
1
X
0
atandby
1
1
1
X
1
X
1
strobe flash



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