ncv7425a ON Semiconductor, ncv7425a Datasheet

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ncv7425a

Manufacturer Part Number
ncv7425a
Description
Ncv7425 Lin Transceiver With Voltage Regulator And Reset Pin
Manufacturer
ON Semiconductor
Datasheet
NCV7425
LIN Transceiver with
Voltage Regulator and
Reset Pin
General Description
transceiver designed to interface between a LIN protocol controller
and the physical bus.
networking (IVN) transceiver family of ON Semiconductor that
integrates a LIN v2.1 physical transceiver and a low−drop voltage
regulator. It is designed to work in harsh automotive environment and
is submitted to the TS16949 qualification flow.
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.
Features
© Semiconductor Components Industries, LLC, 2011
August, 2011 − Rev. 0
The NCV7425 is a fully featured local interconnect network (LIN)
The NCV7425 LIN device is a member of the in−vehicle
The LIN bus is designed to communicate low rate data from control
Package
Protection
Voltage Regulator
LIN−Bus Transceiver
(backward compatible to versions 2.0 and 1.3) and
J2602
Compatibility
Pad
WAKE Towards Supply and Ground
Automotive Environment
V
For Loads up to 150 mA
LIN compliant to specification revision 2.1
Bus Voltage ±45 V
Transmission Rate up to 20 kBaud
Integrated Slope Control for Improved EMI
SOIC−16 Wide Body Green Package with Exposed
Thermal Shutdown
Indefinite Short−Circuit Protection on Pins LIN and
Load Dump Protection (45 V)
Bus Pins Protected Against Transients in an
ESD Protection Level for LIN, INH, WAKE and
Two Device Versions: Output Voltage 3.3 V or 5 V
BB
up to ±10 kV
1
Typical Applications
Modes
Pb−Free Packages are Available
Automotive
Industrial Networks
Supplied Microcontroller
external pull−up or resistive divider towards battery,
control of an external voltage regulator etc.)
(up to 10 kBaud) or Normal Slope
Communication on LIN Bus
No Communication on LIN Bus
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
Under−V oltage Detector with a Reset Output to the
INH Output for Auxiliary Purposes (switching of an
Normal Mode: LIN Communication in Either Low
Sleep Mode: V
Stand−by Mode: V
Wake−up Bringing the Component From Sleep
16
See detailed ordering and shipping information in the
package dimensions section on page 19 of this data sheet.
1
ORDERING INFORMATION
CC
A
WL
YY, Y
WW
G
is Switched “off” and No
CC
http://onsemi.com
EXPOSED PAD
SOIC−16 LEAD
CASE 751AG
WIDE BODY
is Switched “on” but There is
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
Publication Order Number:
16
1
AWLYYWWG
MARKING
DIAGRAM
NCV7425A
NCV7425A/D

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ncv7425a Summary of contents

Page 1

... 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 • Pb−Free Packages are Available Typical Applications • Automotive • Industrial Networks 1 Publication Order Number: MARKING DIAGRAM 16 NCV7425A AWLYYWWG 1 NCV7425A/D ...

Page 2

Table 1. KEY TECHNICAL CHARACTERISTICS Symbol 3.3 V VERSION V Nominal battery operating voltage BB V Load dump protection (Note _SLP Supply current in sleep mode BB V Regulated V output in normal mode, V CC_OUT CC ...

Page 3

WAKE STB EN TxD RxD RSTN 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 ...

Page 4

Table 3. PIN FUNCTION DESCRIPTION Pin Number Pin Name 1 V Battery supply input BB 2 LIN LIN bus output/input 3 GND Ground 4 GND Ground 5 WAKE High voltage digital input pin to switch the part from sleep− to ...

Page 5

Table 4. MODE SELECTION Mode V RxD CC Normal − ON Low = Dominant State Slope (Note 3) High = Recessive State Normal − Low ON Low = Dominant State Slope (Note 4) High = Recessive State Stand−by ON Low ...

Page 6

EN=HIGH when TxD pin is LOW. In order not to transmit immediately a dominant state on the bus (because TxD = LOW), the LIN transmitter is enabled only after TxD returns to HIGH. If STB pin is ...

Page 7

Output pin RSTN is pulled to Low level to indicate the under−voltage condition to the external load (a microcontroller). At the same time, the device enters automatically the standby mode. As soon as the regulator output returns ...

Page 8

Definitions All voltages are referenced to GND. Positive currents flow into the IC. Table 5. ABSOLUTE MAXIMUM RATINGS − 3.3 V and 5 V VERSIONS Symbol V Battery voltage on pin voltage on pin V ...

Page 9

Table 6. DC CHARACTERISTICS − 3.3 V VERSION −40°C to +150°C; unless otherwise specified Symbol Parameter DC CHARACTERISTICS − VOLTAGE REGULATOR I Over−current limitation OUT_LIM V Under−voltage detection threshold ...

Page 10

Table 6. DC CHARACTERISTICS − 3.3 V VERSION −40°C to +150°C; unless otherwise specified Symbol Parameter DC CHARACTERISTICS − DIGITAL I/O PINS PINS TxD AND STB V High level ...

Page 11

Table 7. DC CHARACTERISTICS − VERSION −40°C to +150°C; unless otherwise specified Symbol Parameter DC CHARACTERISTICS SUPPLY − PINS V I Supply current BB_ON I Supply current ...

Page 12

Table 7. DC CHARACTERISTICS − VERSION −40°C to +150°C; unless otherwise specified Symbol Parameter DC CHARACTERISTICS − DIGITAL I/O PINS PIN WAKE V Threshold voltage WAKE_TH I ...

Page 13

Table 8. AC CHARACTERISTICS − 3.3 V AND 5 V VERSIONS −40°C to +150°C; unless otherwise specified Symbol Parameter AC CHARACTERISTICS LIN TRANSMITTER D1 Duty Cycle ...

Page 14

REGULATOR TYPICAL PERFORMANCE CHARACTERISTICS Load Transient Responses Figure 8. Load Transient Response (I 100 mA to 100 mA) CC Line Transient Responses Figure 10. Line Transient Response ( (3.3 V Version) Figure 9. Load ...

Page 15

REGULATOR TYPICAL PERFORMANCE CHARACTERISTICS Static Characteristics Figure 12. Dropout Voltage vs. Temperature Figure 14. Ground Current vs. Output Current (3.3 V Version) Figure 13. Output Voltage vs. Output Figure 15. Output Voltage vs. http://onsemi.com 15 Current Temperature ...

Page 16

REGULATOR TYPICAL PERFORMANCE CHARACTERISTICS Load Transient Responses Figure 16. Load Transient Response (I 100 mA to 100 mA) CC Line Transient Responses Figure 18. Line Transient Response ( Version) Figure 17. Load ...

Page 17

REGULATOR TYPICAL PERFORMANCE CHARACTERISTICS Static Characteristics Figure 20. Dropout Voltage vs. Temperature Figure 22. Ground Current vs. Output Current (5 V Version) Figure 21. Output Voltage vs. Output Figure 23. Output Voltage vs. http://onsemi.com 17 Current Temperature ...

Page 18

TxD t BIT t LIN BUS_dom(max) TH rec (max) TH dom (max) TH rec (min) TH dom (min) t BUS_dom(min) Figure 24. LIN Transmitter Duty Cycle LIN 100% 60% 40 fall Figure 25. LIN Transmitter Rising and Falling ...

Page 19

ORDERING INFORMATION Device Description NCV7425DW0G LIN Transceiver + 3.3 V Regulator + Reset Pin NCV7425DW0R2G NCV7425DW5G LIN Transceiver + 5 V Regulator + Reset Pin NCV7425DW5R2G †For information on tape and reel specifications, including part orientation and tape sizes, please ...

Page 20

... C L 0.200 0.074 0.024 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81− ...

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