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參數(shù)資料
| 型號： | NCV7382DR2 |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 16/16頁 |
| 文件大小： | 0K |
| 描述： | IC TRANSCEIVER LIN ENH 8-SOIC |
| 產(chǎn)品變化通告： | Product Discontinuation 21/Jun/2007 |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | LIN |
| 電源電壓： | 7 V ~ 18 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOICN |
| 包裝： | 帶卷 (TR) |
NCV7382
http://onsemi.com
9
Functional Description
Initialization
After power on, the chip automatically enters the
VBAT-standby mode. In this intermediate mode the INH
output will become HIGH (VS) and therefore the ECU -
voltage regulator will provide the VCC-supply. The
transceiver will remain in the VBAT standby mode until the
controller sets it to normal operation (EN = High). Bus
communication is only possible in normal mode. The
NCV7382 switches itself to the VBAT-standby mode if VCC
is missing or below the undervoltage lockout threshold.
Operating Modes
The EN pin is used to switch the NCV7382 into different
operating modes.
Normal Mode
All of the NCV7382 is active. Switching to normal mode
can only be done with EN = high.
Sleep Mode
The sleep mode (EN = LOW) can only be reached from
normal mode and permits a very low power consumption
because the transceiver and the external voltage regulator
are disabled. If VCC has been switched off, a wakeup
request from the bus line (remote wakeup) will cause the
NCV7382 to enter the VBAT-standby mode (VCC is present
again) and sets the RxD output to low until the device enters
the normal operation mode (active LOW interrupt at RxD).
If the INH pin is not connected to the regulator or the
inhibitable external regulator is not the one that provides
the VCC - supply, the normal mode is directly accessible by
logic high on the EN pin. (Wakeup via mode change/local
wakeup.)
In order to prevent an unintended wakeup caused by
disturbances in the automotive environment, incoming
dominant signals from the bus have to exceed the wakeup
delay time.
Thermal Shutdown Mode
If the junction temperature TJ is higher than 155
°C, the
NCV7382 could be switched into the thermal shutdown
mode. Transmitter will be switched off.
If TJ falls below the thermal shutdown temperature (typ.
140
°C), the NCV7382 will be switched to the previous
state.
Table 1. Mode Control
EN
VCC
Comment
INH
RxD
0
VBAT-standby, Power On
Vs
0
1
VBAT-standby, VCC On
Vs
X
1
Normal Mode
Vs
VCC = Recessive
0 = Dominant
0
Sleep Mode
Floating
0
1
Sleep Mode
Regulator not disabled
Directly switch to normal mode with EN = 1
Floating
VCC
0
0/1
Remote wakeup request
Vs
0 - Active low wakeup
interrupt
LIN BUS Transceiver
The transceiver consists of a bus-driver (1.2 V @
40 mA) with slew rate control, current limit, and a receiver
with a high voltage comparator with filter circuitry.
BUS Input/Output
The recessive BUS level is generated from the integrated
30 k pullup resistor in series with a diode. The diode
prevents the reverse current on VBUS when VBUS > VS.
No additional termination resistor is necessary to use the
NCV7382 on LIN slave nodes. If this IC is used for LIN
master nodes, it is necessary to terminate the bus with
an external 1.0 k
W resistor in series with a diode to VBAT
or INH (See Section Short Circuit to Ground).
TxD Input
During transmission the signal on TxD will be
transferred to the BUS driver for generating a BUS signal.
To minimize the electromagnetic emission of the bus line,
the BUS driver has integrated slew rate control and wave
shaping.
Transmitting will be interrupted in the following cases:
Sleep Mode
Thermal Shutdown
VBAT-standby
The CMOS compatible input TxD directly controls the
BUS level:
TxD = low
→ BUS = low (dominant level)
TxD = high
→ BUS = high (recessive level)
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| NCV7382DR2G | 功能描述:射頻收發(fā)器 ENHANCED LIN TRNSCVR RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| NCV7383 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:FlexRay Bus Driver |
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| NCV7420 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:LIN Transceiver with 3.3V or 5 V Voltage Regulator |
| NCV7420_12 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:LIN Transceiver with 3.3V or 5 V Voltage Regulator |
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