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Date: 24th July 07
New
low cost half bridge driver IC from Atmel for Automotives
Atmel's new hex half-bridge driver IC ATA6836 which can
work at high voltage of 40V is released to market for both
car and truck with 24V dc power source. Atmel says, due
to a technology called BCD on SOI technology (SMARTIS),
junction leakage is minimized. This device provide better
latch up immunity. There are six high side and low side
drivers to drive current up to 650 milliamps via a microcontroller.
Three fully independent DC motors can be actuated through
ATA6836 in three H-bridges. It also supports operation up
to five DC motors sharing four common lines provided motors
are not actuated at the same time. Very much made for controlling
Air-conditioner's airflow in automotives. Device is protected
with over-temperature warning, shutdown, overload, over-voltage,
and short circuit. Microcontroller can read error or fault
such as under-voltage through SPI output register. Has high
ESD rating of 4 KV.
Available in lead free package: QFN24. The chip is priced
around US$2.00. Can also avail development board for US$130.
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