MAX1749 Просмотр технического описания (PDF) - Maxim Integrated
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MAX1749 Datasheet PDF : 8 Pages
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19-1455; Rev 1; 6/99
SOT23 Vibrator Motor Driver
General Description
The MAX1749 allows for a constant vibration force while
operating from a +2.5V to +6.5V input range and deliver-
ing up to 120mA. A PMOS pass transistor allows the
80µA supply current to remain independent of the load.
The output voltage can be adjusted from +1.25V to VIN
with an external resistor-divider. When turned off
(ON = low), the MAX1749 supply current drops to 1µA
(max) to minimize battery drain. Other features include
short-circuit protection, thermal shutdown protection,
and reverse battery protection. The MAX1749 is avail-
able in a 5-pin SOT23 package.
____________________________Features
o Fixed 1.25V or Adjustable (1.25V to 6.5V) Output
o Low Cost
o Thermal Overload Protection
o Output Current Limit
o Reverse Battery Protection
o Low 0.1nA Off Supply Current
o Low 80µA Full-Load Supply Current
________________________Applications
Wireless Handset Vibrator Motor Drivers
Pager Vibrator Motor Drivers
Ordering Information
PART
MAX1749EUK-T
TEMP. RANGE
-40°C to +85°C
PIN-
PACKAGE
5 SOT23
TOP
MARK
ADIX
Typical Operating Circuit
2.5V TO 6.5V
CIN
1µF
BATTERY
ON
OFF
IN
OUT
MAX1749
ON
SET
GND
1.25V
UP TO 120mA
COUT
1µF
Pin Configuration
TOP VIEW
ON 1
5 SET
MAX1749
GND 2
IN 3
4 OUT
SOT23-5
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