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LTC4240IGN датащи(PDF) 14 Page - Linear Technology

номер детали LTC4240IGN
подробное описание детали  CompactPCI Hot Swap Controller with I2C Compatible Interface
PDF  28 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC4240IGN датащи(HTML) 14 Page - Linear Technology

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LTC4240
14
4240f
APPLICATIO S I FOR ATIO
Table 2. Command Byte Definitions
HIGH
LOW
POWER-UP STATE
C7
Don’t care
Don’t care
N/A
C6
Don’t care
Don’t care
N/A
C5
Ignore VEEOUT faults
Don’t ignore VEEOUT faults
LOW
C4
Ignore 12VOUT faults
Don’t ignore 12VOUT faults
LOW
C3
Sets RESETOUT
Does not set RESETOUT low
LOW
C2
Turns OFF/ON to OFF
Does not set OFF/ON
LOW
Overrides OFF/ON pin
Does not override OFF/ON pin
C1
Turns on LED open drain
Does not turn on LED open drain
LOW
C0
Don’t care
Don’t care
N/A
Figure 1. Send Byte Protocol
Figure 2. Send Byte Command Latch and Logic
SCL
12
34
5
6
7
8
9
1
2
3
4
5
6
7
8
9
STOP
SDA
START
ACK
ACK
R/WR=0
ADDR 4
ADDR 3
ADDR 2
ADDR 1
ADDR 0
C5
C4
C3
C2
C1
XX
01
XX
XX
LATCH
COMMAND BYTE
ADDRESS BYTE
COMMAND BYTE
4240 F01
4240 F02
C3 IS USED TO SET
LOCAL_PCI_RST# (RESETOUT).
C2 PULLS DOWN THE GATE OF THE
EXTERNAL N-CHANNEL SWITCHES. IT
ALSO TURNS OFF THE 12VIN AND VEEIN
INTERNAL POWER SWITCHES.
C3
C2
C1
RESETIN
PWRGD
OFF/ON
GATE
RESETOUT
RESETOUT
LED
C1 TURNS ON THE EXTERNAL STATUS
LED INDEPENDENT OF RESETOUT.



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