ATA6622

更新时间： 2024-02-03 19:08:12

品牌	Logo	应用领域
爱特美尔 - ATMEL		总线收发器稳压器
页数	文件大小	规格书
29页	882K
描述
LIN Bus Transceiver with 3.3V (5V) Regulator and Watchdog

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ATA6622 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	QFN	包装说明：	HVQCCN,
针数：	20	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.64	JESD-30 代码：	S-XQCC-N20
长度：	5 mm	功能数量：	1
端子数量：	20	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	认证状态：	Not Qualified
座面最大高度：	1 mm	表面贴装：	YES
电信集成电路类型：	INTERFACE CIRCUIT	温度等级：	AUTOMOTIVE
端子形式：	NO LEAD	端子节距：	0.65 mm
端子位置：	QUAD	宽度：	5 mm
Base Number Matches：	1

ATA6622 数据手册

3. Functional Description

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.x 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.

3.2

Supply Pin (VS)

The LIN operating voltage is V_S= 5V to 27V. An undervoltage detection is implemented to dis-

able data transmission if V_Sfalls below VS_th< 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.,

3.3V/5V/50 mA output capability).

The supply current is typically 10 µA in Sleep Mode and 57 µA in Silent Mode.

3.3

3.4

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.

Voltage Regulator Output Pin (VCC)

The internal 3.3V/5V 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 current 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 thresh-

old V_thun. 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.

3.5

3.6

Voltage Regulator Sense Pin (PVCC)

The PVCC is the sense input pin of the 3.3V/5V voltage regulator. For normal applications (i.e.,

when only using the internal output transistor), this pin is connected to the VCC pin. If an exter-

nal boosting transistor is used, the PVCC pin must be connected to the output of this transistor,

i.e., its emitter terminal.

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.x 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.

ATA6622/ATA6624/ATA6626

4986G–AUTO–09/09

1 2 345 6 7...29

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与ATA6622相关器件

型号	品牌	描述	获取价格	数据表
ATA6622_09	ATMEL	LIN Bus Transceiver with 3.3V (5V) Regulator and Watchdog	获取价格
ATA6622_10	ATMEL	Typically 10 μA Supply Current During Sleep M	获取价格
ATA6622C	ATMEL	Typically 10 μA Supply Current During Sleep M	获取价格
ATA6622C	MICROCHIP	Fully integrated LIN specification 2.0, 2.1 and SAEJ2602-compliant transceiver with a low-	获取价格
ATA6622C-PGPW	ATMEL	Interface Circuit, 5 X 5 MM, 0.65 MM PITCH, LEAD-FREE, VQFN-20	获取价格
ATA6622C-PGQW	ATMEL	LIN Bus Transceiver with 3.3V (5V) Regulator and Watchdog	获取价格

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