Rainbow-electronics ATA6626 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Software Rainbow-electronics ATA6626. Rainbow Electronics ATA6626 User Manual Manual do Utilizador

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DRAFT
Features
Master and Slave Operation Possible
Supply Voltage up to 40V
Operating voltage V
S
= 5V to 27V
Typically 10 µA Supply Current During Sleep Mode
Typically 57 µA Supply Current in Silent Mode
Linear Low-drop Voltage Regulator:
Normal, Fail-safe, and Silent Mode
ATA6622 V
CC
= 3.3V ±2%
ATA6624 V
CC
= 5.0V ±2%
ATA6626 V
CC
= 5.0V ±2%, TXD Time-out Timer Disabled
In Sleep Mode V
CC
is Switched Off
VCC- Undervoltage Detection (4 ms Reset Time) and Watchdog Reset Logical
Combined at Open Drain Output NRES
Negative Trigger Input for Watchdog
Boosting the Voltage Regulator Possible with an External NPN Transistor
LIN Physical Layer According to LIN 2.0 Specification and SAEJ2602-2
Wake-up Capability via LIN-bus, Wake Pin, or Kl_15 Pin
INH Output to Control an External Voltage Regulator or to Switch off the Master Pull Up
Resistor
TXD Time-out Timer; ATA6626 TXD Time-out Timer Is Disabled
Bus Pin is Overtemperature and Short Circuit Protected versus GND and Battery
Adjustable Watchdog Time via External Resistor
Advanced EMC and ESD Performance
ESD HBM 8 kV at Pins LIN and VS According to STM5.1
Package: QFN 5 mm × 5 mm with 20 Pins
1. Description
The ATA6622 is a fully integrated LIN transceiver, which complies with the LIN 2.0
and SAEJ2602-2 specifications. It has a low-drop voltage regulator for 3.3V/50 mA
output and a window watchdog. The ATA6624 has the same functionality as the
ATA6622; however, it uses a 5V/50 mA regulator. The ATA6626 has the same func-
tionality as ATA6624 without a TXD time-out timer. The voltage regulator is able to
source 50 mA up to V
S
= 18V. The output current of the regulator can be boosted by
using an external NPN transistor. This chip combination makes it possible to develop
inexpensive, simple, yet powerful slave and master nodes for LIN-bus systems.
ATA6622/ATA6624/ATA6626 are designed to handle the low-speed data communica-
tion in vehicles, e.g., in convenience electronics. Improved slope control at the
LIN-driver ensures secure data communication up to 20 kBaud. Sleep Mode and
Silent Mode guarantee very low current consumption. The ATA6626 is able to switch
the LIN unlimited to dominant level via TXD for low data rates.
LIN Bus
Transceiver
with 3.3V (5V)
Regulator and
Watchdog
ATA6622
ATA6624
ATA6626
Preliminary
4986B–AUTO–07/07
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1 2 3 4 5 6 ... 27 28

Resumo do Conteúdo

Página 1 - 1. Description

DRAFTFeatures• Master and Slave Operation Possible• Supply Voltage up to 40V• Operating voltage VS = 5V to 27V• Typically 10 µA Supply Current During

Página 2 - Figure 1-1. Block Diagram

104986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFTThe VCC regulator is activated, and the internal LIN slave termination resistor is switch

Página 3 - 2. Pin Configuration

114986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFTFigure 4-5. LIN Wake Up from Sleep Mode Table 4-1. Table of ModesMode of Operation Transce

Página 4 - 3. Functional Description

124986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFT5. Wake-up Scenarios from Silent or Sleep Mode5.1 Remote Wake-up via Dominant Bus StateA

Página 5

134986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT5.5 Fail-safe Features• During a short-circuit at LIN to VBattery, the output limits the o

Página 6

144986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFTFigure 5-1. VCC Voltage Regulator: Ramp-up and Undervoltage Detection Figure 5-2. Power D

Página 7 - 4. Modes of Operation

154986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT6. WatchdogThe watchdog anticipates a trigger signal from the microcontroller at the NTRIG

Página 8

164986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFTFigure 6-1. Timing Sequence with RWD_OSC = 51 kΩ 6.2 Worst Case Calculation with RWD_OSC

Página 9 - 4.3 Sleep Mode

174986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT7. Absolute Maximum RatingsStresses beyond those listed under “Absolute Maximum Ratings” m

Página 10 - 4.5 Unpowered Mode

184986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFT8. Electrical Characteristics5V < VS < 27V, -40°C < Tj < 150°C, unless otherw

Página 11 - Table 4-1. Table of Modes

194986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT4EN Input Pin4.1 Low-level voltage input EN VENL–0.3 +0.8 V A4.2 High-level voltage input

Página 12

24986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFTFigure 1-1. Block Diagram AdjustableWatchdogOscillatorShort Circuit andOvertemperatureProt

Página 13 - 5.6 Voltage Regulator

204986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFT8.8Input leakage current at the receiver including pull-up resistor as specifiedInput lea

Página 14 - 4986B–AUTO–07/07

214986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT10.6 Duty cycle 1THRec(max) = 0.744 × VSTHDom(max) = 0.581 × VSVS = 7.0V to 18VtBit = 50 µ

Página 15 - 6. Watchdog

224986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFT13 Watchdog Oscillator13.1Voltage at WD_OSC in Normal ModeIWD_OSC = –200 µAVVS ≥ 4VVWD_OS

Página 16 - = 51 kΩ

234986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT17 VCC Voltage Regulator ATA662217.1 Output voltage VCC4V < VS < 18V(0 mA to 50 mA)V

Página 17 - 7. Absolute Maximum Ratings

244986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFTFigure 8-1. Definition of Bus Timing Characteristics TXD(Input to transmitting node)VS(Tr

Página 18 - 8. Electrical Characteristics

254986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFTFigure 8-2. Application Circuit 67 8 10920 19 18MLP 5 mm × 5 mm0.65 mm pitch20 leadATA6622

Página 19

264986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFT10. Package Information9. Ordering InformationExtended Type Number Package RemarksATA6622

Página 20

274986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT11. Revision HistoryPlease note that the following page numbers referred to in this sectio

Página 21 - Figure 8-1 on

4986B–AUTO–07/07DRAFTHeadquarters InternationalAtmel Corporation2325 Orchard ParkwaySan Jose, CA 95131USATel: 1(408) 441-0311Fax: 1(408) 487-2600Atmel

Página 22

34986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT2. Pin ConfigurationFigure 2-1. Pinning SO8 67 8 10920 19 18QFN 5 mm × 5 mm0.65 mm pitch20

Página 23

44986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFT3. Functional Description3.1 Physical Layer CompatibilitySince the LIN physical layer is i

Página 24

54986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT3.7 Input/Output Pin (TXD)In Normal Mode the TXD pin is the microcontroller interface used

Página 25 - Microcontroller

64986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFT3.13 TM Input PinThe TM pin is used for final production measurements at Atmel®. In normal

Página 26

74986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFT4. Modes of OperationFigure 4-1. Modes of Operation 4.1 Normal ModeThis is the normal trans

Página 27 - 11. Revision History

84986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary] DRAFTA voltage less than the LIN Pre_Wake detection VLINL at the LIN pin activates the internal

Página 28 - Product Contact

94986B–AUTO–07/07ATA6622/ATA6624/ATA6626 [Preliminary]DRAFTFigure 4-3. LIN Wake Up from Silent Mode 4.3 Sleep ModeA falling edge at EN when TXD is low

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