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ATA6613 데이터시트 PDF




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ATA6613 데이터시트, 핀배열, 회로
General Features
Single-package Fully-integrated Atmel® AVR® 8-bit Microcontroller with LIN
Transceiver, 5V Regulator and Watchdog
Very Low Current Consumption in Sleep Mode
8 Kbytes/16 Kbytes Flash Memory for Application Program (ATA6612/ATA6613)
Supply Voltage Up to 40V
Operating Voltage: 5V to 27V
Temperature Range: Tcase –40°C to +125°C
QFN48, 7 mm × 7 mm Package
1. Description
ATA6612/ATA6613 is a System-in-Package (SiP) product, which is particularly suited
for complete LIN-bus slave-node applications. It supports highly integrated solutions
for in-vehicle LIN networks. The first chip is the LIN-system-basis-chip (LIN-SBC)
ATA6624, which has an integrated LIN transceiver, a 5V regulator and a window
watchdog. The second chip is an automotive microcontroller from Atmel’s series of
Atmel AVR 8-bit microcontroller with advanced RISC architecture.
The ATA6612 consists of the LIN-SBC ATA6624 and the ATmega88 with 8 Kbytes
flash. The ATA6613 consists of the LIN-SBC ATA6624 and the ATmega168 with
16 Kbytes flash. All pins of the LIN System Basis Chip as well as all pins of the Atmel
AVR microcontroller are bonded out to provide customers the same flexibility for their
applications as they have when using discrete parts.
In section 2 you will find the pin configuration for the complete SiP. In sections 3 to 5
the LIN SBC is described, and in sections 6 to 7 the Atmel AVR is described in detail.
Figure 1-1. Application Diagram
LIN Bus
Microcontroller
with LIN
Transceiver,
5V Regulator
and Watchdog
ATA6612
ATA6613
ATA6612/ATA6613
MCU
ATmega88
or
ATmega168
LIN-SBC
ATA6624
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ATA6613 pdf, 반도체, 판매, 대치품
Table 2-2. Maximum Ratings of the SiP
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Parameters
Symbol
Min.
Typ.
Max.
Unit
HBM ESD
ANSI/ESD-STM5.1
JESD22-A114
AEC-Q100 (002)
±2 KV
CDM ESD STM 5.3.1
±750
V
Storage temperature
Operating temperature(1)
Thermal resistance junction to heat slug
Thermal resistance junctiion to ambient
Thermal shutdown of VCC regulator
Ts
Tcase
Rthjc
Rthja
–55
+150
°C
–40
+125
°C
6 K/W
30 K/W
150 165 170
°C
Thermal shutdown of LIN output
150 165 170
°C
Thermal shutdown hysteresis
10 °C
Note: 1. Tcase means the temperature of the heat slug (backside). It is mandatory that this backside temperature is 125°C in the
application.
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ATA6613 전자부품, 판매, 대치품
ATA6612/ATA6613
3.3 Functional Description
3.3.1
Physical Layer Compatibility
Since the LIN physical layer is independent from higher LIN layers (e.g., the LIN protocol layer),
all nodes with a LIN physical layer according to revision 2.1 can be mixed with LIN physical layer
nodes, which, according to older versions (i.e., LIN 1.0, LIN 1.1, LIN 1.2, LIN 1.3), are without
any restrictions.
3.3.2
Supply Pin (VS)
The LIN operating voltage is VS = 5V to 27V. An undervoltage detection is implemented to dis-
able data transmission if VS falls below VSth < 4V in order to avoid false bus messages. After
switching on VS, the IC starts in Fail-safe Mode, and the voltage regulator is switched on (i.e.,
output capability).
The supply current is typically 10 µA in Sleep Mode and 57 µA in Silent Mode.
3.3.3
Ground Pin (GND)
The IC is neutral on the LIN pin in the event of GND disconnection. It is able to handle a ground
shift up to 11.5% of VS. The mandatory system ground is pin 5.
3.3.4
Voltage Regulator Output Pin (VCC)
The internal voltage regulator is capable of driving loads with up to 50 mA. It is able to supply the
microcontroller and other ICs on the PCB and is protected against overloads by means of cur-
rent limitation and overtemperature shut-down. Furthermore, the output voltage is monitored
and will cause a reset signal at the NRES output pin if it drops below a defined threshold Vthun.
To boost up the maximum load current, an external NPN transistor may be used, with its base
connected to the VCC pin and its emitter connected to PVCC.
3.3.5
Voltage Regulator Sense Pin (PVCC)
The PVCC is the sense input pin of the voltage regulator. For normal applications (i.e., when
only using the internal output transistor), this pin is connected to the VCC pin. If an external
boosting transistor is used, the PVCC pin must be connected to the output of this transistor, i.e.,
its emitter terminal.
3.3.6
Bus Pin (LIN)
A low-side driver with internal current limitation and thermal shutdown and an internal pull-up
resistor compliant with the LIN 2.1 specification are implemented. The allowed voltage range is
between –27V and +40V. Reverse currents from the LIN bus to VS are suppressed, even in the
event of GND shifts or battery disconnection. LIN receiver thresholds are compatible with the
LIN protocol specification. The fall time from recessive to dominant bus state and the rise time
from dominant to recessive bus state are slope controlled.
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