参数资料
型号: LTC4304IDD#PBF
厂商: Linear Technology
文件页数: 12/16页
文件大小: 644K
描述: IC BUS BUFFER I2C 10-DFN
产品培训模块: LTC4310 - Hot-Swappable I²C Isolators
标准包装: 121
类型: 热交换开关
应用: 通用型缓冲器/总线扩展器
内部开关:
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-WFDFN 裸露焊盘
供应商设备封装: 10-DFN(3x3)
包装: 管件
LTC4304
12
4304fa
Figure 5. Typical Supply Independent Applications
CARD_SCL
CARD_SDA
3.3V
5V
5V
4304 F05
BACKPLANE
CONNECTOR
SDA
SCL
C1
0.01礔
R1
10k
R6
10k
R11
10k
R12
10k
R7
10k
R10
10k
R15
10k
R2
10k
R3
10k
R8
10k
2.5V
R13
10k
R14
10k
R9
10k
R4
10k
R5
10k
ACC
SDAIN
SCLIN
ENABLE
V
CC
GND
SDAOUT
SCLOUT
READY
FAULT
LTC4304
CARD_SCL
CARD_SDA
3.3V
3.3V
3.3V
3.3V
5V
5V
BACKPLANE
CONNECTOR
SDA
SCL
C2
0.01礔
ACC
SDAIN
SCLIN
ENABLE
V
CC
GND
SDAOUT
SCLOUT
READY
FAULT
LTC4304
CARD_SCL
CARD_SDA
BACKPLANE
CONNECTOR
SDA
SCL
C3
0.01礔
ACC
SDAIN
SCLIN
ENABLE
V
CC
GND
SDAOUT
SCLOUT
READY
FAULT
LTC4304
STAGGERED
CONNECTOR
STAGGERED
CONNECTOR
STAGGERED
CONNECTOR
Supply Independent Operation
Figure 5 illustrates applications of the LTC4304 with differ-
ent bus pull up and V
CC
 voltages, demonstrating its ability
to recognize and buffer bus data levels that are above or
below its V
CC
 supply voltage. In applications where V
CC
 
voltage is greater than bus pull-up voltages, rise-time ac-
celerators cannot be used. Float ACC in applications where
the pull-up voltage on SDAIN and SCLIN is < V
CC
 and the
pull-up voltage on SDAOUT and SCLOUT is e V
CC
. Connect
ACC to ground in applications where V
CC
 is d SDA and
SCL pull-up voltages. Connect ACC to V
CC
 for applications
where SDA and SCL pull-up voltages are d V
CC
.
APPLICATIONS INFORMATION
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