參數(shù)資料
型號: LTC4308IMS8#TRPBF
廠商: Linear Technology
文件頁數(shù): 12/16頁
文件大?。?/td> 168K
描述: IC BUS BUFFER LV 8-MSOP
產(chǎn)品培訓模塊: LTC4310 - Hot-Swappable I²C Isolators
標準包裝: 2,500
類型: 熱交換開關(guān)
應(yīng)用: 通用型緩沖器/總線擴展器
內(nèi)部開關(guān):
電源電壓: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-MSOP
包裝: 帶卷 (TR)
LTC4308
12
4308f
APPLICATIONS INFORMATION
Systems with Supply Voltage Droop
In large 2-wire systems, the V
CC
 voltages seen by devices
at various points in the system can differ by a few hundred
millivolts or more. This situation is modeled by a series
resistor in the V
CC
 line, as shown in Figure 6. For proper
operation, make sure that the V
CC(LTC4308)
 is e 2.3V .
Table 1: Differences Between LTC4301l and LTC4308
SPECIFICATION   LTC4301L    LTC4308
COMMENTS
V
CC(MIN)
2.7V
2.3V
Lower supply voltage allows greater compatibility with low voltage systems.
V
OS(TYP)
100mV
200mV/300mV   Negative output-to-input offset voltage provide better noise margin on low voltage bus.
I
PULLUPAC(TYP)
N/A
8mA
Output bus rise time accelerators aid heavily loaded busses to meet rise time speci cations.
t
TIMEOUT
N/A
30ms
Stuck Bus Recovery automatically isolates the input bus from the output bus and attempts to recover
the output bus.
READY


READY functions identically. In addition, the LTC4308 will pull READY low to indicate when
disconnection has occurred.
CS/ENABLE
Active Low   Active High
When replacing an LTC4301L with an LTC4308, invert the CS signal.
LTC4308 and LTC4301L Feature Comparison
Although both, the LTC4308 and LTC4301L are func-
tionally similar Hot Swappable Bus Buffers designed for
Low Voltage Level Translation in 2-wire bus systems, the
LTC4308 provides greater features. These features include
automatic bus stuck low detection and recovery; rise time
accelerators on the output busses, and 200mV In-Out and
300mV Out-In offset voltages that are nearly independent
of pull-up resistors. These and other differences are listed
in Table 1 and must be accounted for if using the LTC4308
in LTC4301L applications.
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