UDN3626M データシートの表示（PDF） - Allegro MicroSystems
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UDN3626M Datasheet PDF : 8 Pages
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3625 AND 3626
POWERHALL®
SENSOR/DRIVERS FOR
BRUSHLESS DC MOTORS
The external overcurrent adjust and the thermal shutdown are commoned
at the PWM/lO ADJ pin and tieing it to VCC will disable the thermal shut-
down. PWM current/speed control can be performed at the PWM/lO ADJ pin
from a standard totem-pole logic output with a series Schottky diode
(1N5818,1N5819, or equivalent) or by pulling it low through an open-
collector transistor (no pull-up resistor). PWM/lO ADJ input voltages greater
than 0.3 V are not recommended and may create an unstable operating
condition.
TYPICAL FAN APPLICATION
MAGNETIC FIELD
DEFINITIONS
OUTA ON/LOW
S
+B
N
B=0G
+BO P
-B
+B
-B O P
Dwg. AP-001-1
OUTB ON/LOW
Dwg. GP-008
By accepted magnetic convention, lines of flux emanate from the north pole of a magnet and enter the south pole.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
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