ATA6662-TAQY Atmel, ATA6662-TAQY Datasheet
ATA6662-TAQY
Specifications of ATA6662-TAQY
Available stocks
Related parts for ATA6662-TAQY
ATA6662-TAQY Summary of contents
Page 1
... Fulfills the OEM “Hardware Requirements for LIN in Automotive Applications Rev.1.0” 1. Description The ATA6662 is a fully integrated LIN transceiver complying with the LIN specification 2.0, 2.1 and SAEJ2602-2. It interfaces the LIN protocol handler and the physical layer. The device is designed to handle the low-speed data communication in vehicles, for example, in convenience electronics ...
Page 2
... Transmit data input; active low output (strong pull-down) after a local wake-up request 5 GND Ground, heat sink 6 LIN LIN bus line input/output 7 VS Battery supply Battery-related inhibit output for controlling an external voltage regulator; active high after a wake-up 8 INH request ATA6662 2 RXD 1 8 INH WAKE 3 6 LIN ...
Page 3
... After switching on V INHIBIT is switched on. The supply current in Sleep Mode is typically 10 µA. 3.3 Ground Pin (GND) The ATA6662 does not affect the LIN Bus in the case of a GND disconnection able to han- dle a ground shift up to 11. 3.4 Bus Pin (LIN) A low-side driver with internal current limitation and thermal shutdown and an internal pull-up resistor are implemented as specified for LIN 2.x. The voltage range is from – ...
Page 4
... The voltage threshold for a wake-up signal is 3V below the VS voltage with an output current of typically –3 µA. If you do not need a local wake-up in your application, connect pin WAKE directly to pin VS. ATA6662 4 ). rises from zero), the pin INH switches automatically to the V ...
Page 5
... S Batt c: Bus wake-up event d: Wake-up from wake switch while TXD = 1 Sleep Mode INH: high impedance (INH HS switch OFF) Communication: OFF INH RXD High, except after On wake up On LIN depending Off High ohmic ATA6662 ), LIN WAKE LIN Recessive TXD depending Recessive 5 ...
Page 6
... Figure 3-2. LIN Wake-up Waveform Diagram LIN bus INH RXD External voltage regulator EN ATA6662 6 5, Figure 3-2 on page 6 ) and a rising edge at pin LIN results in a remote wake-up request. The device BUS Figure 3-2 on page Bus wake-up filtering time (t ) ...
Page 7
... Wake filtering time t WAKE Off state Regulator wake-up time delay Node in sleep state and Figure 3-3 on page 7). ) ensures that no transient, accord- WAKE High Low High Weak pull-down TXD strong pull-down On state Node in operation EN High Microcontroller start-up delay time ATA6662 ), WAKE Figure 3 ...
Page 8
... Pin TXD provides a pull-down resistor to provide a static low if TXD is disconnected. • The LIN output driver has a current limitation, and if the junction temperature T thermal shut-down temperature T • The implemented hysteresis, T been decreased. ATA6662 8 ; this is optimal behavior for bus BAT is disconnected. BAT , the output driver switches off ...
Page 9
... T – –55 stg Symbol Min. Typ. R thJA R 80 thJA T 150 165 off hys ATA6662 Max. Unit +40 V +40 V +100 V +5.5 V +40 V +100 0 +150 °C +150 °C Max. Unit 145 K/W ...
Page 10
... High-level voltage input 4.3 Pull-down resistor 4.4 Low-level input current 5 INH Output Pin 5.1 High-level voltage 5.2 Leakage current *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter ATA6662 10 Test Conditions Pin 7 Sleep Mode V > V – 0.5V 7 LIN S V < ...
Page 11
... V < 18V BUS V V BUS BAT GND = V Device S V =12V 6 BAT 0V < V < 18V BUS V disconnected BAT V = GND 6 SUP_Device 0V < V < 18V BUS 6 ATA6662 Symbol Min. Typ. Max. V – WAKEH 1V 0.3V V – –1V WAKEL 3.3V I –30 –10 WAKE I –5 +5 WAKE ...
Page 12
... Load 3 (medium): 6.8 nF, 660 characterized on samples; 10.1 and 10.2 specifies the timing parameters for proper operation at 20 Kbit/s, 10.3 and 10.4 at 10.4 Kbit/s. 10.1 Duty cycle 1 10.2 Duty cycle 2 10.3 Duty cycle 3 *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter ATA6662 12 Test Conditions V = BUS_CNT ( ...
Page 13
... V = 7.0V to 18V – t rx_sym rx_pdr rx_pdf 7.0V to 18V Bit Bit t Bus_dom(max) LIN Bus Signal t Bus_dom(min) t rx_pdr(2) ATA6662 Symbol Min. Typ. Max. D4 0.590 t 6 rx_pd t –2 +2 rx_sym t Bit t Bus_rec(min) Thresholds of receiving node 1 Thresholds of receiving node 2 t Bus_rec(max) t rx_pdr(1) t rx_pdf(2) ...
Page 14
... Figure 6-2. Application Circuit VBATTERY 22 µF 12V 5V VDD Microcontroller GND External switch ATA6662 14 ATA6662 Receiver 1 RXD Wake-up bus timer 4 Slew rate control TXD TXD Time-out timer Wake-up timer WAKE 100 nF Filter Short-circuit and overtemperature protection V S Control unit Sleep mode INH ...
Page 15
... Ordering Information Extended Type Number ATA6662-TAQY ATA6662C-TAQY 8. Package Information Package Dimensions in mm 0.4 1.27 Drawing-No.: 6.541-5031.01-4 Issue: 1; 15.08.06 4916O–AUTO–05/10 Package Remarks SO8 LIN transceiver, Pb-free, 4k, taped and reeled SO8 LIN transceiver, Pb-free, 4k, taped and reeled 4.9 ±0.1 3. ATA6662 5 ±0.2 3.7 ± ...
Page 16
... ATA6662 16 History Features on page 1 changed Heading 3.6: text changed Features on page 1 changed Section 4 “Absolute Maximum Ratings” on page 9 changed Section 6 “Electrical Characteristics” number 7.13 on page 11 added Section 7 “Ordering Information” on page 16 changed Figure 1-1 “ ...
Page 17
... Section 3.7 “Enable Input Pin (EN)” on page 4 changed Section 3.11 “Remote Wake-up via Dominant Bus State” on page 5 changed Figure 3-1 “Mode of Operation” on page 6 changed Section 3-14 “Fail-safe Features” on page 6 changed Section 4 “Absolute Maximum Ratings” on page 8 changed Section 6 “Electrical Characteristics” on pages changed ATA6662 17 ...
Page 18
... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...