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LA6503 Datasheet

  • LA6503

  • CD-ROM Drive Spindle Motor Driver + Sled Motor Driver + Sled...

  • 8頁(yè)

  • SANYO

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Ordering number : EN5791
Monolithic Linear IC
LA6503
CD-ROM Drive Spindle Motor Driver + Sled Motor
Driver + Sled Motion/Position Detector IC
Overview
The LA6503 was developed for CAV control CD-ROM
drives, and provides spindle motor driver, sled motor
driver, and sled motion/position detection circuits.
Package Dimensions
unit: mm
3219-QFP34H-C
[LA6503]
Functions and Features
鈥?CAV control spindle motor driver
鈥?Three-phase brushless motor driver
鈥?I
O
max = 1 A
鈥?Built-in FG output circuit (single Hall detection
output)
鈥?Reverse braking circuit
鈥?Built-in start/stop circuit
鈥?Upper side current detection for minimal loss in the
current detection resistor. Also, the voltage drop in
this resistor reduces the IC internal power
dissipation.
鈥?Built-in thermal shutdown circuit
鈥?Sled motor driver
鈥?One built-in BTL driver channel
鈥?I
O
max = 1 A
鈥?Wide dynamic range
鈥?Built-in level shifting circuit
鈥?Muting (output on/off) circuit
鈥?Built-in thermal shutdown circuit
鈥?Sled motion/position detection circuit
鈥?Circuit that provides a pulse output corresponding to
sled motion and position
鈥?This circuit emits 96 pulses for each rotation from
a 24-pole magnet and 90擄 phase difference Hall
element motors, and thus detects the distance
moved. It also provides two 48-pulse outputs with
differing phases such that the motion direction can
be detected from the phase difference between those
signals.
鈥?Hall bias power supply
鈥?Generates the Hall element 3-V bias voltage.
鈥?I
O
max = 30 mA, typical
SANYO: QFP34H-C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
31398HA (OT) No. 5791-1/8

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