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参数资料
| 型号： | MC33689 |
| 厂商： | 飞思卡尔半导体(中国)有限公司 |
| 英文描述： | System Basis Chip with LIN transceiver(带LIN收发器的系统基片) |
| 中文描述： | 系统基础芯片（带林收发器的系统基片的LIN收发器） |
| 文件页数： | 13/18页 |
| 文件大小： | 389K |
| 代理商： | MC33689 |
MC33689
13
MC33689
5
GENERAL DESCRIPTION
The LIN SBC is an integrated circuit dedicated to automotive applications. It includes the following functions:
- One full protected voltage regulator with 50mA total output current capability available at Vdd external pin, with under voltage
reset function.
- Programmable window watchdog function, INT output
- Wake up from Lx wake input and LIN bus
- LIN physical interface
- Two 150mA high side protected switches PWM capable for relay or lamp drive
- One 50mA high side protected switch for hall sensor or
- Current sense op amp
5.1
Device Supply
The device is supplied from the battery line through the Vs1 and VS2 pins. An external diode is required to protect against
negative transients and reverse battery. It can operate from 4.5V and under the jump start condition at 27V DC. Device
functionality is guaranteed down to 4.5V at VS1 and VS2 pins. This pin sustains standard automotive voltage conditions such as
load dump at 40V.
5.2
Over and under voltage warning.
If the voltage at VS1 exceed 20V typical or falls below 6V typical, the device generates an INT. VSOV or VSUV bits are set in
the SPI register. Information is latched until the bit is read AND the fault has disappeared. The interrupt is not maskable.
5.3
LIN physical interface:
The device contains an integrated LIN physical interface.
5.4
L1 and L2 inputs:
These pins are used to sense external switches and to wake up the device from sleep or stop mode. During normal mode the
state of these pins can be read through SPI.
5.5
HS1 and HS2:
These are two high side switches to drive load such as relays or lamps. They are protected against over current and over
temperature and include internal clamp circuitry for inductive load drive. Control is done through SPI. PWM capability is offered
through the IN input.
If PWM control is required, the internal circuitry which drive the internal high side switch is an AND function between the SPI
bit HS1 (or HS2) and the IN input. In order to have HS1 on, bit HS1 must be set and IN input must be tied to a micro controller
PWM ouptut to generate the PWM control signal (HS1 on when IN is high, HS1 off when IN is low). Same for HS2 output.
If not PWM control is required, IN input must be connected to Vdd or to a high logic level, then the control of HS1 and HS2 is
done through SPI only.
If over temperature occurs on any of the 3 switches, the faulty switch is turned off and latched off until HS1 (or HS2 or HS3) bit
is set to 1 in the SPI register. The failure is reported through SPI by HSst bit.
5.6
HS3:
This high side switch can be used to drive small lamps, hall sensor or switch pull up resistors. Control is done through SPI
5.7
Sense amplifier:
E+, E- and OUT are the 3 terminations of the current sense amplifier. The amplifier is enable in normal mode only.
5.8
Mode of operation
Mode are controlled by the mode1 and mode 2 bits in the SPI register. 3 modes are available: sleep, stop and normal.
The operation modes and the associated functions are described in the table below.
Device
Mode
Voltage
Regulator
Wake up
capabilities
Reset output
Watchdog
function
HS1
HS2
HS3
LIN
interface
Opera-
tional
amplifier
Reset
Vdd: ON
N/A
Low for typ 1ms, then
high (if Vdd above
threshold)
Disable
OFF
Recessive
only
Not
active
Normal
Request
Vdd: ON
N/A
- High.
- Active low if Vdd
under voltage occurs
and if Normal Request
timeout (if W/D enable)
150ms time
out if W/D
enabled.
ON or
OFF
Transmit
and
Receive
Not
active
Table 5-1.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC33689DDWB | 功能描述:CAN 接口集成电路 SBCLIN RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| MC33689DDWBR2 | 功能描述:CAN 接口集成电路 SBCLIN RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
| MC33689DPEW | 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN - Bulk 制造商:Freescale Semiconductor 功能描述:IC SYSTEM BASIS W/LIN 32SOIC |
| MC33689DPEWR2 | 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP W/LIN - Tape and Reel 制造商:Freescale Semiconductor 功能描述:IC SYSTEM BASIS W/LIN 32SOIC |
| MC33689DWB | 功能描述:CAN 接口集成电路 SBCLIN RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube |
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