AAT4901 Datasheet, PDF (7/16 Pages) Advanced Analogic Technologies – Buffered Power Full-Bridge

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Functional Block Diagram
IN
PRODUCT DATASHEET
AAT4901
Buffered Power Full-Bridge
OUTA
OUTB
ENA
ENB
Control Logic
GND
ENC
END
AAT4901-3 Only
Functional Description
The AAT4901 is a buffered full-bridge driver IC with
options to allow the device to function as two independent
half-bridges. The output stage is capable of driving output
loads of up to 0.7A and features break-before-make tim-
ing and very fast propagation delay time, allowing high
switching speed up to 2MHz. The enable input (EN), when
driven low, turns off the driver and reduces the operating
current to less than 1μA. Logic options allow the AAT4901
to be used as a small DC motor driver with break function,
a solenoid driver, a dual-low-side MOSFET driver, or as a
coil driver. Applications include motor drive, proximity
detectors, electronic locks, and DC-DC converters.
4901.2008.03.1.0
www.analogictech.com
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