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參數(shù)資料
| 型號： | TH8055 |
| 元件分類： | CAN |
| 英文描述： | Single Wire CAN Transceiver |
| 中文描述： | 單線CAN收發(fā)器 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 266K |
| 代理商： | TH8055 |
T H8055
Single Wire CAN Transceiver
390108055
Rev. 1.1a
Page 5 of 15
Jan 2002
CAN BUS input/output pin
Wave Shaping in normal and wake up mode
Wave shaping is incorporated into the transmitter to
minimize EMI radiated emissions. An important
contributor to emissions is the rise and fall times
during output transitions at the “corners” of the
voltage waveform. The resultant waveform is one
half of a sin wave of frequency 50 - 65 kHz at the
rising waveform edge and one quarter of this sin
wave at falling or trailing edge.
Wave Shaping in high speed mode
Wave shaping control of the rising and falling
waveform edges are disabled during high speed
mode. EMI emissions requirements are waived
during this mode. The waveform rise time in this
mode is less than one
μ
s.
Short circuits
If the CAN BUS pin is shorted to ground for any
duration of time, an over temperature shut down
circuit disables the output high side drive source
transistor before the local die temperature exceeds
the damage limit threshold.
Loss of ground
If the CANH voltage decreases under the specified
value below the ECU - ground, the LOAD pin is
switched into high impedance state. The CANH
transmission is continued until the undervoltage lock
out voltage threshold is detected.
Loss of battery
In case of loss of battery (VBAT = 0 or open) the
transceiver do not disturb bus communication. The
maximum reverse current into power supply system
doesn‘t exceed 500μA.
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