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D5954 Schematic ( PDF Datasheet ) - Shaoxing Silicore Technology

Teilenummer D5954
Beschreibung 4-Channel Driver Motor Driver
Hersteller Shaoxing Silicore Technology
Logo Shaoxing Silicore Technology Logo 




Gesamt 6 Seiten
D5954 Datasheet, Funktion
Silicore
4 CHANNEL DRIVER MOTOR DRIVER D5954
DESCRIPTION
The D5954 is a 4 channel
driver for optical disc motor
driver. Dual channel current
feedback type drivers are built
in, in addition to dual channel
motor drivers
Outline Drawing
F E AT U R E
Wide dynamic range. (4.0V (typ .) at PreVcc=12V,PVcc=5V,RL=8)
Separating Vcc into Pre+Power of sled motor, Power of loading motor and Power
of actuator ,can make better power efficiency, by low supply voltage drive.
Level shift circuit built in.
Thermal-shut-down circuit built in
Stand-by mode built in
BLOCK DIAGRAM
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
1/6






D5954 Datasheet, Funktion
Silicore
D5954
NOTES ON USE
1. Thermal-shut-down circuit built-in. In case IC chip temperature rise to
175°C(typ.), thermal-shut-down circuit operates and output current is muted. Next
time IC chip temperature falls bellows 150°C(typ.), the driver blocks start.
2. In case stand-by-pin voltage under 0.5V or opened, quiescent current is muted.
Stand-by-pin voltage should be over 2.0V for normal application.
3. In case supply voltage falls below 3.5V (typ.), output current is muted. Next time
supply voltage rises to 3.7V(typ.), the driver blocks start.
4. Bias\pin (pin 27 ) sh ou ld be pu lled u p mo re than 1.2V. In case bias-pin voltage is
pulled down under 0.9V (typ.), output current is muted.
5. Insert the by-pass capacitor between Vcc-pin and GND-pin of IC as possible as
near (approximately 0.1µF).
6. Heat dissipation fins are attached to the GND on the inside of the package. Make
sure to connect these to the external GND.
7. Output pin is to avoid short-circuit with Vcc, GND and other output pins.
And, be fully careful in the direction of an integrated circuit when you put an
integrated circuit.
On the substrate. An integrated circuit is damaged, and smoke may come out by
the case.
Output pin …11~18pin
Vcc…8pin, PVcc1…9pin, PVcc2…21pin
PreGND…22pin, PGND…10,19pin
CHARACTERISTIC CURVES
3
2
1
0
0 25
50 75 100 125 150
Ambient temperature Ta (°C)
Pd: power dissipation
* On less than 3%(percentage occupied by copper foil), 70×70mm2, t=1.6mm, glass
epoxy mounting.
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
6/6

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