ATA6625C-TAQY Atmel, ATA6625C-TAQY Datasheet

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... RC oscillator for the protocol handling. The bus output is designed to withstand high voltage. Sleep Mode (voltage regulator switched off) and Silent Mode (communication off; V guarantee minimized current consumption. LIN Bus Transceiver with Integrated Voltage Regulator ATA6623 ATA6625 ATA6623C ATA6625C voltage on) CC 4957I–AUTO–03/11 ...

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... LIN LIN bus line input/output 5 RXD Receive data output 6 TXD Transmit data input 7 NRES Output undervoltage reset, low at reset 8 VCC Output voltage regulator 3.3V/5V/85mA Atmel ATA6623/ATA6625 2 ATA6623/25 Receiver - + Wake-up bus timer Slew rate control TXD Time-out timer Sleep mode Fail-safe Mode ...

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... V CC (Figure 6-1 on page 11). Even if V voltage disconnection. The LIN receiver thresholds are compatible with the LIN Batt Atmel ATA6623/ATA6625 , NRES switches to thun = 0V the NRES stays low, because voltage ramps down, NRES stays low until S = 4ms after V ...

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... I VCC regulator has its full functionality switched to low while TXD is low, the device is forced to Sleep Mode. No data trans- mission is possible, and the voltage regulator is switched off. Atmel ATA6623/ATA6625 4 > 6ms, dom . The AC characteris- ...

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... Normal Mode VCC: 3.3V/5V monitoring Go to sleep command TXD = 0 Modes of Operation Mode of Operation Transceiver Fail safe OFF Normal ON Silent OFF Sleep OFF Atmel ATA6623/ATA6625 Batt b a VCC: 3.3V/ with undervoltage monitoring Sleep Mode VCC: switched off Communication: OFF V RXD CC High, 3.3V/5V Except after wake-up 3 ...

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... The device switches from Silent Mode to Fail-safe Mode, and the remote wake-up request is indicated by a low level at pin RXD to interrupt the microcontroller high can be used to switch directly to Normal Mode. Atmel ATA6623/ATA6625 6 voltage regulator operates with a 3.3V/5V output voltage, with a low CC ...

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... LIN switches directly to recessive mode LIN Wake-up Waveform Diagram from Silent Mode Bus wake-up filtering time t bus RXD High VCC Silent mode 3.3V/5V EN Undervoltage detection active NRES Atmel ATA6623/ATA6625 Silent Mode Mode select window Fail-safe mode Low Fail-safe mode 3.3V/5V Normal mode Normal mode EN High 7 ...

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... RXD pin to interrupt the microcontroller EN high can be used to switch directly from Sleep to Fail-safe Mode still high after VCC ramp up and undervoltage reset time, the IC switches to Normal Mode. Figure 4-4. Atmel ATA6623/ATA6625 8 regulator is switched off, NRES and RXD are low. The internal slave CC ) and a following rising edge at pin LIN results in a remote wake-up request ...

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... Low Figure 6-1 on page (V < 3.7V) during Silent- or Sleep Mode switches the IC into the Fail-safe Mode after S , the IC mode changes from Unpowered Mode to Fail-safe Mode. th Reset Atmel ATA6623/ATA6625 Fail-safe Mode Low On state Regulator wake-up time Reset time Microcontroller start-up time delay 11) ...

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... Pin RXD is set floating if V • Pin TXD provides a pull-up resistor to force the transceiver into Recessive Mode if TXD is disconnected. • If TXD is short-circuited to GND possible to switch to Sleep Mode via ENABLE after t dom Atmel ATA6623/ATA6625 10 , the output limits the output current to I Battery is disconnected. Batt > ...

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... Figure 6-2 4957I–AUTO–03/11 V Voltage Regulator: Ramp Up and Undervoltage CC VS 12V 5.5V/3.8V VCC 5V/3.3V V thun t t VCC Reset NRES 5V/3.3V shows the safe operating area of the Atmel Atmel ATA6623/ATA6625 t res_f of 80K/W is achieved. thja output current I CC ® ATA6625. , which is VCC 11 ...

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... Figure 6-2. To program the microcontroller it may be necessary to supply the V power supply while the V system basis chip. Atmel ATA6623/ATA6625 12 Power Dissipation: Safe Operating Area: V Voltage V at Different Ambient Temperatures Due (V) S Pin of the system basis chip is disconnected. This will not affect the ...

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... Junction temperature Storage temperature 8. Thermal Characteristics Parameters Thermal resistance junction to ambient (free air) Special heat sink at GND (pin 3) on PCB Thermal shutdown of V regulator CC Thermal shutdown of LIN output Thermal shutdown hysteresis 4957I–AUTO–03/11 Atmel ATA6623/ATA6625 Symbol Min. V –0 –0.3 I NRES – ...

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... TXD Input Pin 3.1 Low level voltage input 3.2 High level voltage input 3.3 Pull-up resistor V High level leakage 3.4 V current *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter Atmel ATA6623/ATA6625 14 Pin VS > V – 0.5V VS LIN S < 14V (T = 25° > ...

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... Low level output low V V 5.3 Undervoltage reset time C Reset debounce time for V 5.4 falling edge C 6 VCC Voltage Regulator Atmel ATA6623 4V < V (0mA to 50mA) 6.1 Output voltage VCC 4.5V < V (0mA to 85mA) Output voltage 6.2 3V < VS < 4V low ...

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... Electrical Characteristics (Continued) 5V < V < 27V, –40°C < T < 150°C; unless otherwise specified all values refer to GND pins No. Parameters Test Conditions 7 VCC Voltage Regulator Atmel ATA6625 5.5V < V (0mA to 50mA) 7.1 Output voltage VCC 6V < V (0mA to 85mA) Output voltage 7.2 4V < ...

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... BUS_CNT LIN + V )/2 th_dom th_rec = 5V LIN LIN – V LIN hys th_rec th_dom LIN LIN = 0V LIN LIN = TXD TXD Atmel ATA6623/ATA6625 Symbol Min. Typ. Max. I –1 –0.35 BUS_PAS_dom I 10 BUS_PAS_rec I –10 +0.5 +10 BUS_NO_gnd I 0.1 BUS_NO_bat C LIN 0.475 0.5 0.525 V BUS_CNT –27 0.4 ...

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... LIN Receiver, RXD Load Conditions: C Propagation delay of V 11.1 receiver Figure 9-1 t rx_pd Symmetry of receiver V 11.2 propagation delay rising t rx_sym edge minus falling edge *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter Atmel ATA6623/ATA6625 18 Pin = 0.744 V Rec(max 0.581 V Dom(max 7.0V to 18V LIN S = 50µ ...

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... TH Rec(max Dom(max) (Transceiver supply of transmitting node) TH Rec(min) TH Dom(min) RXD (Output of receiving node1) t rx_pdf(1) RXD (Output of receiving node2) 4957I–AUTO–03/11 Atmel ATA6623/ATA6625 t t Bit Bit t Bus_dom(max) LIN Bus Signal t Bus_dom(min) t rx_pdr(2) t Bit t Bus_rec(min) Thresholds of receiving node1 Thresholds of receiving node2 ...

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... Figure 9-2. Application Circuit VCC ATA6623/ RXD Micro- controller TXD TXD 6 Time-out timer EN 2 GND 3 GND Atmel ATA6623/ATA6625 20 Receiver - + Wake-up bus timer Slew rate control Sleep Normal/Silent/ mode Control Fail-safe Mode VCC unit 3.3V/5V switched off Undervoltage reset 1 VS Master node ...

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... Ordering Information Extended Type Number ATA6623-TAPY ATA6625-TAPY ATA6623-TAQY ATA6625-TAQY ATA6623C-TAPY ATA6625C-TAPY ATA6623C-TAQY ATA6625C-TAQY 11. Package Information Package Dimensions in mm 0.4 1.27 Drawing-No.: 6.541-5031.01-4 Issue: 1; 15.08.06 4957I–AUTO–03/11 Package Remarks SO8 3.3V LIN system basis chip, Pb-free, 1k, taped and reeled SO8 5V LIN system basis chip, Pb-free, 1k, taped and reeled SO8 3 ...

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... El.Char.Table -> rows changed: 5.1, 5.2, 6.5, 6.6, 6.7, 6.8, 7.6, 7.7, 7.8,7.9, 10.2 El.Char.Table -> row 8.13 added Ord.Info.Table -> Part numbers ATA6623C and ATA6625C added Figures changed: 1-1, 4-2, 4-3, 4-4, 4-5, 6-2, 9-2 Sections changed: 3.1, 3.6, 3.8, 3.9, 3.10, 4.1, 4.2, 4.3, 5 ...

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