PRODUCT DATASHEET
AAT4901
TM
FastSwitch
Buffered Power Full-Bridge
General Description
Features
•
•
The AAT4901 FastSwitch™ is a member of AnalogicTech’s
Application Specific Power MOSFET™ (ASPM™) product
family. It is a full-bridge buffered power stage operating
with an input voltage range of 2.0V to 5.5V. The device
is designed to operate with a switching frequency of up
to 2MHz, minimizing the cost and size of external com-
ponents. The AAT4901 is protected from shoot-through
current by integrated break-before-make circuitry. The
drivers can be independently controlled and their propa-
gation delay, from input to output, is typically between
8ns-19ns dependent upon logic option.
VIN Range: 2.0V–5.5V
RDS(ON)
ꢀ High-side 220mΩ
ꢀ Low-side 160mΩ
Break-Before-Make Shoot–Through Protection
4 Options
ꢀ Single Control Input with Enable
• Two Logic Versions
ꢀ Dual Control Input with Brake Function
ꢀ Dual Half-bridge
Low Quiescent Current:
ꢀ 10µA (max) DC
ꢀ 4mA (max) at 1MHz
:
•
•
•
Four options are offered providing a single input control,
dual input control or as two independent half-bridges.
•
•
-40°C to +85°C Temperature Range
SC70JW-8 Package
Other features include low RDS(ON) and low quiescent cur-
rent allowing for high efficiency performance.
Applications
ꢀ DC Motor Drive
The AAT4901 is available in the space-saving, Pb-free
8-pin SC70JW package and is rated over the -40°C to
+85°C temperature range.
ꢀ Door Locks
ꢀ Dual Low-Side MOSFET Gate Driver
ꢀ Fan Motors
ꢀ High Frequency DC/DC Converters
ꢀ High Speed Line Drive
ꢀ Proximity Detectors
Typical Applications
IN
CIN
OUTA
AAT4901-1
ENA
OUTB
ENB
GND
w w w . a n a l o g i c t e c h . c o m
4901.2008.03.1.0
1