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LM3555 датащи(PDF) 19 Page - Texas Instruments

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номер детали LM3555
подробное описание детали  LM3555 Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interface
PDF  33 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

LM3555 датащи(HTML) 19 Page - Texas Instruments

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IC1
IC0
VO1
VO0
FT3
FT2
FT1
FT0
Indicator and Timer Register
Address: 0x02
Default:
0
0
0
0
1
1
1
1
Definition:
RF3
RF2
RF1
RF1
DR3
DR2
DR1
DR0
Version Control Register
Address: 0x01
Default:
0
0
0
0
#
#
#
#
Definition:
ADR6
bit7
ADR5
bit6
ADR4
bit5
ADR3
bit4
ADR2
bit3
ADR1
bit2
ADR0
bit1
R/W
bit0
MSB
LSB
0
0
0
1
1
0
0
I
2
C Slave Address (chip address)
start
msb Chip Address lsb
w
ack
msb Register Add lsb
ack
msb
DATA
lsb
ack
stop
ack from slave
ack from slave
ack from slave
SCL
SDIO
start
Id = 30h
w
ack
addr = 04h
ack
ack
data = 08h
stop
LM3555
www.ti.com
SNVS594E – JANUARY 2009 – REVISED NOVEMBER 2011
w = write (SDA = "0")
ack = acknowledge (SDA pulled down by the slave)
id = chip address, 30h for LM3555
Figure 3. Write Cycle
I
2C-COMPATIBLE CHIP ADDRESS
The chip address for LM3555 is 0110000, or 30hex.
INTERNAL REGISTERS OF LM3555
Register
Internal Hex Address
Power On Value
Version Control Register
0x01
0000 1100
Indicator and Timer Register
0x02
0000 1111
Current Set Register
0x03
0110 1001
Control Register
0x04
1011 0100
Fault Register
0x05
0000 1000
REGISTER DEFINITIONS
BOLD TABLE VALUES = Default Register Settings
RF3–RF0: Unused
DR3–DR0: Design Revision = 1100
IC1–IC0: Indicator LED current control bits.
VO1-VO0: VREF Offset Adjustment bits. Used for diode detection.
FT3-FT0: Software Flash Timer Duration Control bits.
Copyright © 2009–2011, Texas Instruments Incorporated
Submit Documentation Feedback
19
Product Folder Links: LM3555



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