MAX1749 Datasheet, PDF (1/8 Pages) Maxim Integrated Products – SOT23 Vibrator Motor Driver

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 V_IN
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
C_IN
1µF
BATTERY
ON
OFF
IN
OUT
MAX1749
ON
SET
GND
1.25V
UP TO 120mA
C_OUT
1µF
Pin Configuration
TOP VIEW
ON 1
5 SET
MAX1749
GND 2
IN 3
4 OUT
SOT23-5
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