ATA6622C(2014) 데이터 시트보기 (PDF) - Atmel Corporation

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ATA6622C
(Rev.:2014)

LIN Bus Transceiver with 3.3V (5V) Regulator and Watchdog

Atmel Corporation 

2. Pin Configuration

Figure 2-1. Pinning QFN20

20 19 18 17 16

EN 1

GND 2

NTRIG 3

WAKE 4

GND 5

ATA6622C

ATA6624C

ATA6626C

QFN 5mm x 5mm

0.65mm pitch

20 lead

15 MODE

14 TM

13 WD_OSC

12 NRES

11 TXD

6 7 8 9 10

Table 2-1. Pin Description

Pin

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Backside

Symbol

EN

GND

NTRIG

WAKE

GND

GND

LIN

GND

RXD

INH

TXD

NRES

WD_OSC

TM

MODE

KL_15

GND

PVCC

VCC

VS

Function

Enables the device in Normal Mode

System ground (optional)

Low-level watchdog trigger input from microcontroller

High-voltage input for local wake-up request; if not needed, connect directly to VS

System ground (mandatory)

System ground (optional)

LIN-bus line input/output

System ground (optional)

Receive data output

Battery related output for controlling an external voltage regulator

Transmit data input; active low output (strong pull down) after a local wake-up request

Output undervoltage and watchdog reset (open drain)

External resistor for adjustable watchdog timing

For factory testing only (tie to ground)

Low, watchdog is on; high, watchdog is off

Ignition detection (edge sensitive)

System ground (optional)

3.3V/5V regulator sense input pin

3.3V/5V regulator output/driver pin

Battery supply

Heat slug is connected to all GND pins

ATA6622C/ATA6624C/ATA6626C [DATASHEET]

3

4986O–AUTO–10/14

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