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MLX16303 데이터시트 PDF




Melexis Microelectronic Systems에서 제조한 전자 부품 MLX16303은 전자 산업 및 응용 분야에서
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부품번호 MLX16303 기능
기능 Bi-directional Remote Sensor Unit Interface
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MLX16303 데이터시트, 핀배열, 회로
MLX16303
Bi-directional Remote Sensor Unit Interface
Features and Benefits
www.DataSheet4U.com
Two identical interface channels for remote sensor units
Two connection modes: connection to OUTx and RETx or connection to OUTx and GND
pin
16 bit Standard SPI for control and diagnosis via a microcontroller
Supply voltage for each remote unit with a supply current up to 45mA
Current limitation with an analog feed back loop for each channel
Receive data from the remote unit by current modulation with a transmission rate of
10kHz
Transmission of data to the remote unit via PWM voltage pulses
Data input/output can be directly connected to a microcontroller input/output (CMOS)
Low current consumption
All pins to the external interface are short-circuit and high-voltage protected
High immunity against cross coupling between the two channels
The current modulation provides high noise immunity for data transfer
Application
Remote automotive sensors (between ECU and sensors).
Ordering Information
Part No.
MLX16303
Temperature Suffix
E (-40°C to 85°C)
Package Code
DC (SOIC16, 150 mil)
1. Functional Diagram
SSIO0
Vdd
Vs
Vp
Rtrip
SSIO1
Diagnosis circuit
(Temperature, short circuit, open circuit)
Transceiver for
current
conversion or
for sending
PWM pulses
Voltage supply
Current
reference
Transceiver for
current
conversion or
for sending
PWM pulses
Remote unit
driver
Power on
reset
Remote unit
driver
16 bit SPI interface
OUT0
RET0
GND0
OUT1
RET1
GND1
CLK CS
DI DO
2. Description
This interface IC is designed for remote
automotive sensors, especially between a
main ECU and remote (sensor) units. It
contains two identical interfaces and the
main task of each interface is to supply one
remote unit and to receive digital information
from the same remote unit. It is also
possible to send data as PWM voltage
pulses to the remote unit, for example to
program the remote unit for its special
application. This is done by one active wire:
the interface supplies the external unit with
a pre-regulated voltage, the external unit
transmits the digital information back to the
interface by current modulation. A
continuous diagnosis of the IC is running in
the background. The diagnosis results can
be requested by a microcontroller using the
SPI interface.
3901016303
Rev. 004
Page 1 of 20
Data Sheet
Jun/04




MLX16303 pdf, 반도체, 판매, 대치품
MLX16303
Bi-directional Remote Sensor Unit Interface
Parameter
DC Output current per pin at:
SSIO0, SSIO1, DO
Resistor to GND at RTRIP
Temperatures:
www.DataSheet4Uop.ceormating ambient temperature range
operating junction temperature range
storage temperature range
Thermal resistance:
Thermal resistance junction to pin
Symbol
Idi
ISSIO0
ISSIO1
Ido
Rrtrip
Tamb
Tj
Tsto
Rthjc
min. max. Unit
1 mA
35k 75k
-40 85 °C
-40 150 °C
-50 125 °C
30 k/W
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-
maximum-rated conditions for extended periods may affect device reliability.
Pinout
1 SSIO1 RETURN1 16
2 VDD (5V) VSS ret1 15
3 RTRIP
OUT1 14
4 DI
VP 13
5 DO
VS 12
6 CS
OUT0 11
7 CLK
VSS 10
8 SSIO0 RETURN 0 9
3901016303
Rev. 004
Page 4 of 20
Data Sheet
Jun/04

4페이지










MLX16303 전자부품, 판매, 대치품
MLX16303
Bi-directional Remote Sensor Unit Interface
Itrip: specified value is for Vdd=5V (treshold is relative to Vdd)
Current threshold for the rising edge (1)
Hysteresis on current threshold
Ithreshold
Rtrip=56 Ithres-
KOhms hold
14
1
OUT0 and OUT1
www.DataSheet4UV.oclotamge drop between Vs and Out
(Ioutx ≤ 45 mA for 6.0 V< VS< 7.7V,
Ioutx ≤ 35 mA for 4.9 V < VS < 6.0 V)
Vout0_sat
Vout1_sat
Switch on Time via SPI until 90% of Voutx is reached tout0switchon,
(with an output capacitance 120nF, Switch ON time tout1switchon
start after the end of the SPI command)
3
Switch off Time via SPI until 10% of Voutx is reached tout0switchoff,
(with an output capacitance 120nF)
tout1switchoff
Short Circuit to GND diagnosis threshold:
Rout0srtgnd,
Resistance from OUTx to GND
Rout1srtgnd
30
280
Debounce time
tout0srtgndq,
tout1srtgndq
500
Faults are latched. No debounce time for the release. tout0srtgnddq,
tout1srtgnddq
0
Short Circuit to battery diagnosis threshold:
Resistance from OUTx to battery
Rout0srtbat,
Rout1rtbat
25
OUTx: Voltage limit
Vout0>>,
Vout1>>
Vs
Debounce time
tout0srtbatq,
tout1srtbatq
500
Short Circuit to according RETURNx diagnosis
threshold: Resistance from OUTx to according
RETURNx
Debounce time
Rout0srtret0,
Rout1srtret1
tout0srtret0q,
tout1srtret1q
280
500
Open loop ( IOUTx ) low current limit ( with Rtrip = Iout0<<,
56K) ( remark: nominally equal to Ithreshold/10)
Iout1<<
0.5
Debounce time
tout0openret0q,
tout1openret1q
500
Ithres- mA
hold
24
3.5
0.6 V
30 µs
250 µs
4.5K Ω
2000 µs
0 µs
2.5K Ω
Vs + 8%V
2000 µs
4.5K Ω
2000 µs
4.0 mA
2000 µs
(1) Definition of theoretical equation of Ithreshold: Ithreshold (mA) = 960/Rtrip (kOhms)
3901016303
Rev. 004
Page 7 of 20
Data Sheet
Jun/04

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