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Numéro de référence | SA56203TW | ||
Description | One-chip motor driver | ||
Fabricant | NXP Semiconductors | ||
Logo | |||
SA56203
One-chip motor driver
Rev. 01 — 30 September 2004
Preliminary data sheet
1. General description
The SA56203 is a one-chip motor driver IC that is capable of driving all motors of CD or
DVD systems e.g. spindle, sled and loading motors and actuators on the optical pick-up
unit. The driver intended for the 3-phase, brushless, Hall-commutated spindle motor uses
PWM switching. Internal regeneration of the back EMF of the spindle motor enables the
driver to operate in current-steering mode without using external power-dissipating sense
resistors. The driver for the 2-phase sled stepper motor operates in current-steering PWM
mode. In addition the IC contains four full-bridge linear channels that can be used to drive
a loading motor and 3D actuators (focus, tracking and tilt).
The SA56203 is available in an exposed die pad HTSSOP56 package.
2. Features
s Low heat generation due to power-efficient direct full-bridge switching of spindle motor
driver
s Controlled spindle motor current during acceleration and brake
s Reverse torque brake function (full bridge)
s Adjustable spindle motor current limiter
s Internal regeneration for EMF of spindlewww.DataSheet.co.kr motor
s Current-steering PWM controlled stepper motor driver for sled
s Four class-AB linear channels for loading motor and 3D actuators (focus, tracking and
tilt)
s Tracking actuator driver with back EMF amplifier
s Loading motor driver with transresistance amplifier for loading current
s Low on-resistance D-MOSFET output power stages
s Built-in thermal shutdown and thermal warning
s Interfaces to 3 V and 5 V logic
s Package with low thermal resistance to heatsink (reflowable die pad)
s Lead free package.
3. Applications
s DVD+RW, DVD-RW and DVD-RAM
s Combi
s CD-RW
s Other compact disc media.
Datasheet pdf - http://www.DataSheet4U.net/
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Pages | Pages 27 | ||
Télécharger | [ SA56203TW ] |
No | Description détaillée | Fabricant |
SA56203TW | One-chip motor driver | NXP Semiconductors |
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