one LTC4315. The SCL1 bus is driven by " />
參數(shù)資料
型號(hào)： LTC4315CMS#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 9/20頁(yè)
文件大?。?/td> 0K
描述： IC 2WIRE BUS BUFFER 12MSOP
標(biāo)準(zhǔn)包裝： 2,500
類型： 2線總線緩沖器
Tx/Rx類型： I²C Logic
電容 - 輸入： 10pF
電源電壓： 2.9 V ~ 5.5 V
電流 - 電源： 8.1mA
安裝類型： 表面貼裝
封裝/外殼： 12-TSSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 12-MSOP
包裝： 帶卷 (TR)
LTC4315
17
4315f
APPLICATIONS INFORMATION
example, there are three LTC4300As, one LTC4307 and
one LTC4315. The SCL1 bus is driven by an I2C master
(master not shown). When the SCL2 voltage crosses
0.6V and 0.8V, the RTAs on the LTC4300A and LTC4307
turn on respectively and source current into SCL2. The
LTC4315 detects this and turns off its buffers, releasing
SCL1 and SCL2 high. Contention between the LTC4315
buffers and the LTC4300A and LTC4307 RTAs is prevented
and the SCL1, SCL2 and SCL3 waveforms in Figure 11 are
monotonic. The logic low noise margin is reduced because
the LTC4315 buffers turn off when the SCL1 voltage is
approximately 0.6V.
Generally, noise margin will be reduced if other RTAs
turn on at a voltage less than 0.3 VMIN. The reduction
in noise margin is a function of the number of LTC4315s
and the number and turn-on voltage of other RTAs, whose
current must be sunk by the LTC4315 buffers. The same
arguments apply for non-LTC buffer products whose RTA
turn-on voltage is less than 0.3 VMIN.
Interoperability is improved by reducing the interaction time
between the LTC4315 buffers and other RTAs by reducing
R1 and CB1. The following guidelines are recommended
for single supply systems,
a. For 5V systems choose R1 < 20k and CB1 < 1nF. There
are no other constraints.
b. For 3.3V systems, refer to Figures 12 and 13 for opera-
tion with LTC4300As and LTC4307s. In the figures:
M
=
Number of LTC4300As or LTC4307s
Number of LTC4315s
R1 and CB1 must be chosen to be below the curves for a
specific value of M. For M greater than the values shown
in the figures, non-idealities do not result. R1 < 20k and
CB1 <1nF are still recommended.
Figure 12. Recommended Maximum R1 and CB1 Values for the
LTC4315 Operating with Multiple LTC4300As in a 3.3V System.
Figure 13. Recommended Maximum R1 and CB1 Values for the
LTC4315 Operating with Multiple LTC4307s in a 3.3V System.
RBUS (kΩ)
02
C
BUS
(pF)
1000
100
10
4
4315 F12
10
68
M = 1
M = 2
M = 3
RBUS (kΩ)
02
C
BUS
(pF)
10000
1000
100
4
4315 F13
10
68
M = 1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4315IDE#PBF 功能描述:IC 2WIRE BUS BUFFER 12DFN RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器，中繼器，分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤 其它名稱:Q5134101
LTC4315IDE#TRPBF 功能描述:IC 2WIRE BUS BUFFER 12DFN RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器，中繼器，分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤 其它名稱:Q5134101
LTC4315IMS#PBF 功能描述:IC 2WIRE BUS BUFFER 12MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器，中繼器，分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤 其它名稱:Q5134101
LTC4315IMS#TRPBF 功能描述:IC 2WIRE BUS BUFFER 12MSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 信號(hào)緩沖器，中繼器，分配器 系列:- 標(biāo)準(zhǔn)包裝:160 系列:- 類型:轉(zhuǎn)發(fā)器 Tx/Rx類型:以太網(wǎng) 延遲時(shí)間:- 電容 - 輸入:- 電源電壓:2.37 V ~ 2.63 V 電流 - 電源:60mA 安裝類型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤 其它名稱:Q5134101
LTC435 制造商:Thomas & Betts 功能描述:TSB COVER,4WAY,350MCM
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