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參數(shù)資料
| 型號(hào)： | LTC4260IUH#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 19/30頁 |
| 文件大?。?/td> | 295K |
| 描述： | IC HOT SWAP CNTRL I2C 32-QFN |
| 標(biāo)準(zhǔn)包裝： | 73 |
| 類型： | 熱交換控制器 |
| 應(yīng)用： | 通用 |
| 內(nèi)部開關(guān)： | 無 |
| 電源電壓： | 8.5 V ~ 80 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 32-QFN 裸露焊盤（5x5） |
| 包裝： | 管件 |
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LTC4260
19
4260fc
For more information www.linear.com/LTC4260
applicaTions inForMaTion
R/W bit now set to one. The LTC4260 acknowledges and
sends the contents of the requested register. The transmis-
sion is ended when the master sends a STOP condition.
If the master acknowledges the transmitted data byte, as
in a Read Word command (Figure 12), the LTC4260 will
repeat the requested register as the second data byte.
Note that the Register Address pointer is not cleared at
the end of the transaction. Thus the Receive Byte protocol
can be used to repeatedly read a specific register.
Alert Response Protocol
The LTC4260 implements the SMBus Alert Response Pro-
tocol as shown in Figure 11. If enabled to do so through
the ALERT register B, the LTC4260 will respond to faults
by pulling the ALERT pin low. Multiple LTC4260s can
share a common ALERT line and the protocol allows a
master to determine which LTC4260s are pulling the line
low. The master begins by sending a START bit followed
by the special Alert Response Address (0001 100)b with
the R/W bit set to one. Any LTC4260 that is pulling its
ALERT pin low will acknowledge and begin sending back
its individual slave address.
An arbitration scheme ensures that the LTC4260 with the
lowest address will have priority; all others will abort their
response. The successful responder will then release its
ALERT pin while any others will continue to hold their
ALERT pins low. Polling may also be used to search for
any LTC4260 that have detected faults. Any LTC4260 pull-
ing its ALERT pin low will also release it if it is individually
addressed during a read or write transaction.
The ALERT signal will not be pulled low again until the
FAULT register indicates a different fault has occurred or the
original fault is cleared and it occurs again. Note that this
means repeated or continuing faults will not generate alerts
until the associated FAULT register bit has been cleared.
SCL
SDA
START
CONDITION
STOP
CONDITION
ADDRESS
R/W
ACK
DATA
ACK
DATA
ACK
1 - 7
8
9
4260 F06
a6 - a0
b7 - b0
b7 - b0
1 - 7
8
9
1 - 7
8
9
P
S
Figure 6. Data Transfer Over I
2
C or SMBus
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