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NCV7425 PDF даташит

Спецификация NCV7425 изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «LIN Transceiver».

Детали детали

Номер произв NCV7425
Описание LIN Transceiver
Производители ON Semiconductor
логотип ON Semiconductor логотип 

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NCV7425 Даташит, Описание, Даташиты
NCV7425
LIN Transceiver with
Voltage Regulator and
Reset Pin
General Description
The NCV7425 is a fully featured local interconnect network (LIN)
transceiver designed to interface between a LIN protocol controller
and the physical bus.
The NCV7425 LIN device is a member of the in−vehicle
networking (IVN) transceiver family of ON Semiconductor that
integrates a LIN v2.1 physical transceiver and a low−drop voltage
regulator.
The LIN bus is designed to communicate low rate data from control
devices such as door locks, mirrors, car seats, and sunroofs at the
lowest possible cost. The bus is designed to eliminate as much wiring
as possible and is implemented using a single wire in each node. Each
node has a slave MCU−state machine that recognizes and translates
the instructions specific to that function. The main attraction of the
LIN bus is that all the functions are not time critical and usually relate
to passenger comfort.
www.onsemi.com
MARKING
DIAGRAM
16
16
1
SOIC−16 LEAD
WIDE BODY
EXPOSED PAD
CASE 751AG
NCV7425−x
AWLYYWWG
x = 0 or 5
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
Features
LIN−Bus Transceiver
LIN compliant to specification revision 2.1
(backward compatible to versions 2.0 and 1.3) and
J2602
Bus Voltage ±45 V
Transmission Rate up to 20 kBaud
Integrated Slope Control for Improved EMI
Compatibility
Package
SOIC−16 Wide Body Package with Exposed Pad
Protection
Thermal Shutdown
Indefinite Short−Circuit Protection on Pins LIN and
WAKE Towards Supply and Ground
Load Dump Protection (45 V)
Bus Pins Protected Against Transients in an
Automotive Environment
ESD Protection Level for LIN, INH, WAKE and
VBB up to ±10 kV
Voltage Regulator
Two Device Versions: Output Voltage 3.3 V or 5 V
For Loads up to 150 mA
Undervoltage Detector with a Reset Output to the
Supplied Microcontroller
INH Output for Auxiliary Purposes (switching of an
external pull−up or resistive divider towards battery,
control of an external voltage regulator etc.)
ORDERING INFORMATION
Modes
See detailed ordering and shipping information in the
package dimensions section on page 19 of this data sheet.
Normal Mode: LIN Communication in Either Low
(up to 10 kBaud) or Normal Slope
Sleep Mode: VCC is Switched “off” and No
Communication on LIN Bus
Standby Mode: VCC is Switched “on” but There is
No Communication on LIN Bus
Wake−up Bringing the Component From Sleep
Mode Into Standby Mode is Possible Either by LIN
Command or Digital Input Signal on WAKE Pin
Wake−up from LIN Bus can also be Detected and
Flagged When the Chip is Already in Standby Mode
Quality
NCV Prefix for Automotive and Other Applications
Requiring Unique Site and Control Change
Requirements; AEC−Q100 Qualified and PPAP
Capable
These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant
Typical Applications
Automotive
Industrial Networks
© Semiconductor Components Industries, LLC, 2015
May, 2015 − Rev. 3
1
Publication Order Number:
NCV7425/D









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NCV7425 Даташит, Описание, Даташиты
NCV7425
Table 1. KEY TECHNICAL CHARACTERISTICS
Symbol
Parameter
Min Typ Max Unit
3.3 V VERSION
VBB
VBB
IBB_SLP
VCC_OUT
(Note 2)
IOUT_LIM
VWAKE
Nominal battery operating voltage
Load dump protection (Note 1)
Supply current in sleep mode
Regulated VCC output in normal mode, VCC load 0−100 mA
Regulated VCC output in normal mode, 100 mA < VCC load < 150 mA
VCC regulator current limitation
Operating DC voltage on WAKE pin
Maximum rating voltage on WAKE pin
5 12 28 V
45 V
20 mA
3.234 3.3 3.366
V
3.201 3.3 3.399
150 225 300 mA
0 VBB V
−45 45
VINH
Operating DC voltage on INH pin
TJ_TSD
Junction thermal shutdown temperature
TJ Operating junction temperature
5 V VERSION
0 VBB V
165 195 °C
−40
+150
°C
VBB
VBB
IBB_SLP
VCC_OUT
(Note 2)
IOUT_LIM
VWAKE
Nominal battery operating voltage
Load dump protection (Note 1)
Supply current in sleep mode
Regulated VCC output in normal mode, VCC load 0−100 mA
Regulated VCC output in normal mode, 100 mA < VCC load < 150 mA
VCC regulator current limitation
Operating DC voltage on WAKE pin
Maximum rating voltage on WAKE pin
6 12 28 V
45 V
20 mA
4.90 5 5.10 V
4.85 5 5.15 V
150 225 300 mA
0 VBB V
−45 45
VINH
Operating DC voltage on INH pin
0 VBB V
TJ_TSD
Junction thermal shutdown temperature
165 195 °C
TJ Operating junction temperature
−40
+150
°C
1. The applied transients shall be in accordance with ISO 7637 part 1, test pulse 5. The device complies with functional class C;. The LIN
communication itself complies with functional class B. On regulator class A can be reached depending on the application and external
components
2. VCC voltage must be properly stabilized by external capacitors: capacitor of min. 80 nF with ESR < 10 mW in parallel with a capacitor of min.
8 mF, ESR < 1 W.
Table 2. THERMAL CHARACTERISTICS
Symbol
Parameter
Rth(vj−a)_1
Rth(vj−a)_2
Rth(vj−a)_3
Rth(vj−a)_4
Thermal resistance junction−to−ambient on JEDEC 1S0P PCB
Thermal resistance junction−to−ambient on JEDEC 1S0P + 300 mm2 PCB
Thermal resistance junction−to−ambient on JEDEC 2S2P PCB
Thermal resistance junction−to−ambient on JEDEC 2S2P + 300 mm2 PCB
Conditions
Free Air
Free Air
Free Air
Free Air
Value
138
94
70
49
Unit
K/W
K/W
K/W
K/W
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NCV7425 Даташит, Описание, Даташиты
NCV7425
VCC
NCV7425
V−reg
VBB
Band −
gap
WAKE
STB
EN
VCC
TxD
VCC
VCC
Control Logic
POR
Thermal
shutdown
Osc
RxD
RSTN
VCC
Receiver
Timeout
Slope
Control
INH
VBB
VCC
VBB
LIN
GND
TEST
OTP _ZAP
PD20090609 .1
Figure 1. Block Diagram
TYPICAL APPLICATION
Application Information
The EMC immunity of the Master−mode device can be
further enhanced by adding a capacitor between the LIN
output and ground. The optimum value of this capacitor is
determined by the length and capacitance of the LIN bus, the
number and capacitance of Slave devices, the pull−up
resistance of all devices (Master and Slave), and the required
time constant of the system, respectively.
VCC voltage must be properly stabilized by external
capacitors: capacitor of min. 80 nF (ESR < 10 mW) in
parallel with a capacitor of min. 8 mF (ESR < 1 W).
The 10 mF capacitor on the battery is optional and serves
as reservoir capacitor to deal with battery supply
micro−cuts.
VBAT
LIN
WAKE
GND
10uF 100nF
10uF
Master Node
100nF
V BB
INH
VCC
RxD
TxD
LIN EN
STB
WAKE
RSTN
OTP_ZAP
GND
TEST
VCC
Micro
controller
GND
VBAT
LIN
WAKE
GND
10uF 100nF
10 uF
Slave Node
100nF
V BB
INH
VCC
RxD
TxD
LIN EN
STB
WAKE
RSTN
OTP_ZAP
GND
TEST
VCC
Micro
controller
GND
KL30
LIN−BUS
KL31
Figure 2. Application Diagram
PD20090609.2
www.onsemi.com
3










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