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ATA6628 Datasheet(PDF) 1 Page - ATMEL Corporation

Part No. ATA6628
Description  Negative Trigger Input for Watchdog
Download  36 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATA6628 Datasheet(HTML) 1 Page - ATMEL Corporation

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Features
Master and Slave Operation Possible
Supply Voltage up to 40V
Operating voltage V
S = 5V to 27V
Typically 10 µA Supply Current During Sleep Mode
Typically 40 µA Supply Current in Silent Mode
Linear Low-drop Voltage Regulator:
– Normal, Fail-safe, and Silent Mode
• ATA6628 V
CC = 3.3V ±2%
• ATA6630 V
CC = 5.0V ±2%
– In Sleep Mode VCC is Switched Off
VCC- Undervoltage Detection (4 ms Reset Time) and Watchdog Reset Logical
Combined at Open Drain Output NRES
High-speed Mode Up to 115 kBaud
Internal 1:6 Voltage Divider for V
Battery Sensing
Negative Trigger Input for Watchdog
Boosting the Voltage Regulator Possible with an External NPN Transistor
LIN Physical Layer According to LIN 2.0, 2.1 and SAEJ2602-2
Wake-up Capability via LIN-bus, Wake Pin, or Kl_15 Pin
INH Output to Control an External Voltage Regulator or to Switch off the Master Pull Up
Resistor
Bus Pin is Overtemperature and Short-circuit Protected versus GND and Battery
Adjustable Watchdog Time via External Resistor
Advanced EMC and ESD Performance
Fulfills the OEM “Hardware Requirements for LIN in Automotive Applications Rev.1.1”
Interference and Damage Protection According ISO7637
Package: QFN 5 mm
× 5 mm with 20 Pins
1.
Description
The ATA6628 is a fully integrated LIN transceiver, which complies with the LIN 2.0,
2.1 and SAEJ2602-2 specifications. It has a low-drop voltage regulator for
3.3V/50 mA output and a window watchdog. The ATA6630 has the same functionality
as the ATA6628; however, it uses a 5V/50 mA regulator. The voltage regulator is able
to source 50 mA, but the output current can be boosted by using an external NPN
transistor. This chip combination makes it possible to develop inexpensive, simple, yet
powerful slave and master nodes for LIN-bus systems. ATA6628/ATA6630 are
designed to handle the low-speed data communication in vehicles, e.g., in conve-
nience electronics. Improved slope control at the LIN-driver ensures secure data
communication up to 20 kBaud. Sleep Mode and Silent Mode guarantee very low cur-
rent consumption.
LIN Bus
Transceiver
with 3.3V (5V)
Regulator and
Watchdog
ATA6628
ATA6630
Preliminary
9117E–AUTO–07/10


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