- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10410 > MCP2022AT-500E/ST (Microchip Technology)IC TXRX LIN 5.0V LDO 14-TSSOP PDF資料下載
參數(shù)資料
| 型號(hào)： | MCP2022AT-500E/ST |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 45/48頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX LIN 5.0V LDO 14-TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Microchip MCP20xx LIN Transceiver Overview |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | * |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁當(dāng)前第45頁第46頁第47頁第48頁
MCP2021A/2A
DS22298A-page 6
2012 Microchip Technology Inc.
1.3
Fail-Safe Features
1.3.1
GENERAL FAIL-SAFE FEATURES
An internal pull-down resistor on CS/LWAKE pin
disables the transmitter if the pin is floating.
An internal pull-up resistor on the TXD pin places
TXD in HIGH thus the LBUS in recessive if TXD
pin is floating.
High-impedance and low-leakage current on
LBUS during loss of power or ground.
The current limit on LBUS protects the transceiver
from being damaged if the pin is shorted to VBB.
1.3.2
THERMAL PROTECTION
The thermal protection circuit monitors the die
temperature and is able to shut down the LIN
transmitter and voltage regulator.
There are three causes for a thermal overload. A
thermal shut down can be triggered by any one, or a
combination of, the following thermal overload
conditions.
Voltage regulator overload
LIN bus output overload
Increase in die temperature due to increase in
environment temperature
The recovery time from the thermal shutdown is equal
to adequate cooling time.
TABLE 1-2:
PINOUT OVERVIEW
PIN Name
PIN Number
PIN Type
Function
MCP2021A
MCP2022A
VREG
3
Output
Voltage Regulator Output
VSS
5
11
Power
Ground
VBB
7
13
Power
Battery
TXD
4
Input, HV-tolerant
Transmit Data Input
RXD
1
Output
Receive Data Output
LBUS
6
12
I/O, HV
LIN Bus
CS/LWAKE
2
TTL Input, HV-tolerant Chip Select and Local Wake-up Input
FAULT/TXE
8
14
I/O, HV-tolerant
Fault Detect Output/Transmitter Enable Input
RESET
-
5
Output
Reset Output
TABLE 1-3:
FAULT/TXE TRUTH TABLE
TXD
In
RXD
Out
LIN BUS
I/O
Thermal
Override
FAULT/TXE
Definition
External
Input
Driven
Output
CS = 1
LH
VBB
OFF
H
L
FAULT, TXD driven low, LIN BUS shorted to
VBB (Note 1), or LBUS/TXD permanent
dominant detected, and Transmit time-out
shutdown.
HH
VBB
OFF
H
OK
LL
GND
OFF
H
OK
HL
GND
OFF
H
OK, data is being received from the LIN BUS
xx
VBB
ON
H
L
FAULT, Transceiver in thermal shutdown
xx
VBB
xL
x
NO FAULT, the CPU is commanding the
transceiver to turn off the transmitter driver
CS = 0 after a wake-up
xx
x
L
Wake-up from LIN bus activity
xx
x
H
Wake-up from POR
Legend: x = don’t care
Note 1:
The FAULT/TXE is valid after approximately 25 s after TXD falling edge. This is to eliminate false fault
reporting during bus propagation delays.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCP2022AT-330E/ST | IC TXRX LIN 3.3V LDO 14-TSSOP |
| VE-BN3-MW | CONVERTER MOD DC/DC 24V 100W |
| 17292-3SG-3ES | CONN RCPT 3POS PNL MNT SKT |
| VE-BN2-MX-F4 | CONVERTER MOD DC/DC 15V 75W |
| VE-BN1-MX-F3 | CONVERTER MOD DC/DC 12V 75W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP2022P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:LIN Transceiver with Voltage Regulator |
| MCP2022P-330E/SL | 功能描述:LIN 收發(fā)器 LIN Transceiver with Vreg and LIN RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| MCP2022P-330E/ST | 功能描述:LIN 收發(fā)器 LIN Transceiver with Vreg and LIN RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| MCP2022P-500E/SL | 功能描述:LIN 收發(fā)器 LIN Transceiver with Vreg and LIN RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| MCP2022P-500E/ST | 功能描述:LIN 收發(fā)器 LIN Transceiver with Vreg and LIN RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。