參數(shù)資料
型號(hào)： LTC4310IMS-1#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 8/20頁(yè)
文件大小： 0K
描述： IC I2C ISOLATR 100KHZ BUS 10MSOP
產(chǎn)品培訓(xùn)模塊： LTC4310 - Hot-Swappable I²C Isolators
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： 熱交換 I²C 隔離器
Tx/Rx類(lèi)型： I²C Logic
電容 - 輸入： 10pF
電源電壓： 3 V ~ 5.5 V
電流 - 電源： 6.5mA
安裝類(lèi)型： 表面貼裝
封裝/外殼： 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 10-MSOP
包裝： 帶卷 (TR)
LTC4310-1/LTC4310-2
16
431012fa
Using the LTC4310-1 at Frequencies Above 100kHz
Userswhoimplementcustomtwo-wirebusesmayusethe
LTC4310-1atbusfrequenciesabove100kHzprovidedthat
all other devices on the bus can tolerate the approximately
1s bus rise times resulting from the LTC4310-1’s bus rise
rate regulation circuitry.
Transformer Selection Guide
As shown in Figure 1, a transformer passes transmit and
receive signals between the two LTC4310’s. The transmit
signals have 1.25V magnitude and 35ns pulse width. The
receive circuitry has an equivalent input impedance of
16.5kΩ and can receive differential signals ranging from
0.875V to 1.55V. To meet these requirements, choose a
transformer having a magnetizing inductance ranging
from 50H to 350H, a 1:1 turns ratio and a maximum
insertion loss of –1.5dB. For optimal common mode noise
rejection,chooseacenter-tappedtransformerandconnect
the center tap on the receiving side to local ground using a
0.01F capacitor. Ringing at the LTC4310’s RXP and RXN
pins can effectively be damped by inserting 50Ω series
resistors between each LTC4310’s TXP and TXN pins and
the corresponding transformer primary windings.
Table 1 shows a recommended list of transformers for use
with the LTC4310. 10/100BaseTX Ethernet transformers
are inexpensive and work very well in this application for
isolation voltages up to 1500V. For applications requiring
4000Visolation,theWürthElectronicsMidcom749014012
transformer is recommended.
RF Radiated Emissions
The LTC4310 evaluation board passes CISPR22 Class B
requirements for radiated emissions. The results of
CISPR22testingareshownintheevaluationboardmanual.
To reduce radiated emission levels further, enclose the
LTC4310 application circuit in a shielded enclosure.
Common Mode Transient Immunity
The LTC4310 has high immunity to common mode tran-
sients. This is tested by applying a square voltage pulse
having very fast edges between the isolated grounds. The
LTC4310 passes 20kV/us edges without corruption of the
I2C bus logic states.
Table 1. LTC4310 Recommended Transformers
MANUFACTURER
PART NUMBER
ISOLATION
VOLTAGE
FORM FACTOR (mm)
TURNS
RATIO
CENTER
TAP
OPERATING
TEMPERATURE
x
y
z
PCA Electronics
EPF8119S
1500VRMS
10.41
12.45
5.84
1:1
Yes
0°C TO 70°C
EPF8119SE
1500VRMS
10.2
12.7
5.96
1:1
Yes
–40°C TO 85°C
Pulse
E5017
1500VRMS
9.4
12.7
5.08
1:1
Yes
0°C TO 70°C
Würth Electronics
Midcom
000-7090-37R-LF1
1500VRMS
9.4
12.95
5.33
1:1
Yes
–40°C TO 85°C
749014012
4000VRMS
17
24.55
10.85
1:1
Yes
0°C TO 70°C
applicaTions inForMaTion
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4310IMS-2#PBF 功能描述:IC I2C ISOLATOR SMBUS 10MSOP RoHS:是 類(lèi)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(lèi)型:轉(zhuǎn)發(fā)器 Tx/Rx類(lèi)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(lèi)型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤(pán) 其它名稱(chēng):Q5134101
LTC4310IMS-2#TRPBF 功能描述:IC I2C ISOLATR 400KHZ BUS 10MSOP RoHS:是 類(lèi)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(lèi)型:轉(zhuǎn)發(fā)器 Tx/Rx類(lèi)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(lèi)型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤(pán) 其它名稱(chēng):Q5134101
LTC4311CDC#TRMPBF 功能描述:IC ACCELERATOR SMBUS DL 6-DFN RoHS:是 類(lèi)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(lèi)型:轉(zhuǎn)發(fā)器 Tx/Rx類(lèi)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(lèi)型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤(pán) 其它名稱(chēng):Q5134101
LTC4311CDC#TRPBF 功能描述:IC ACCELERATOR I2C/SMBUS 6-DFN RoHS:是 類(lèi)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(lèi)型:轉(zhuǎn)發(fā)器 Tx/Rx類(lèi)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(lèi)型:表面貼裝 封裝/外殼:64-TQFP 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:64-TQFP-EP（10x10） 包裝:托盤(pán) 其它名稱(chēng):Q5134101
LTC4311CSC6#PBF 制造商:Linear Technology 功能描述:I2C/SMBus Accelerator 6-Pin SC-70 制造商:Linear Technology 功能描述:IC I2C / SMBUS ACCELERATOR 6 制造商:Linear Technology 功能描述:IC, I2C / SMBUS ACCELERATOR, 6SC-70 制造商:Linear Technology 功能描述:I2C/SMBUS ACCELERATOR, 5.5V, SC-70-6; IC Interface Type:I2C; Interface Applications:Battery Chargers, Industrial Control, Notebook and Palmtop Computers, Portable Instruments, TV/Video; Supply Voltage Min:1.6V; No. of Pins:6 ;RoHS Compliant: Yes
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