YD5954 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – AUTUATOR DRIVER WITH CURRENT FEEDBACK FOR CD-ROM/DVD

YOUDA INTEGRATED CIRCUIT
YD5954
ACTUATOR DRIVER WITH CURRENT FEEDBACK
FOR CD – ROM/DVD YD5954
DESCRIPTION
The YD5954 is a four-channel BTL driver IC for driving the motors and actuators in products such as
CD-ROM/DVD drivers. Two of the channels use current feedback to minimize the current phase shift caused by the
influence of load inductance.
FEATURES
*Wide dynamic range(4.0V(typ.) when Vcc=12V, PV_CC=5V, and R_L=8 ).
*Level shift circuit on chip.
*Thermal shutdown circuit on chip.
BLOCK DIAGRAM
28
27
26
25
24
23
22
21 20 19 18 17 16 15
STAND
-BY
THERMAL
SHUT
DOWN
10k
+ - _20k
+-
7.5k
7.5k
DET.AMP
7.5k
X2
20k
PreGND
10k
X2
DET.AMP
PVcc2
15K
PGND
YD5954
10k
25k
SLED
DRIVER
ACTUATIO
DRIVER
PVcc1
PVcc2
LOADING
DRIVER
Vcc
ACTUATIO
DRIVER
7.5k
10k
1
2
3
4
5
6
7
Vcc PVcc1 PGND
8
9 10 11 12 13 14
WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: [phone] Fax: [phone]
Website: www.e-youda.com
SHENZHEN OFFICE Tel [phone] 13823533350 Fax [phone]
Ver 3.1
1 of 4
2004-9-20