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LA6503

Sanyo
Part Number LA6503
Manufacturer Sanyo
Description CD-ROM Drive Spindle Motor Driver + Sled Motor Driver + Sled Motion/Position Detector IC
Published Apr 25, 2005
Detailed Description Ordering number : EN5791 Monolithic Linear IC LA6503 CD-ROM Drive Spindle Motor Driver + Sled Motor Driver + Sled Moti...
Datasheet PDF File LA6503 PDF File

LA6503
LA6503

Overview
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 • CAV control spindle motor driver — Three-phase brushless motor driver — IOmax = 1 A — Built-in FG output circuit (single Hall detection output) — Reverse braking circuit — Built-in start/stop circuit — 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.
— Built-in thermal shutdown circuit • Sled motor driver — One built-in BTL driver channel — IOmax = 1 A — Wide dynamic range — Built-in level shifting circuit — Muting (output on/off) circuit — Built-in thermal shutdown circuit • Sled motion/position detection circuit — Circuit that provides a pulse output corresponding to sled motion and position — This circuit emits 96 pulses for each rotation from a 24-pole magnet and 90° 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.
• Hall bias power supply — Generates the Hall element 3-V bias voltage.
— IOmax = 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 LA6503 Specifications Maximum Ratings at Ta = 25°C Parameter Supply voltage Supply voltage Input voltage Output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max VM max VC max IO max Pd max Topr Tstg Spindle output, sled output Independent IC Conditions Ratings...


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