CMD4508
5-CH BTL Driver for DVD Player
Features
2-CH BTL driver
2-CH BTL driver with current feedback
1-CH forward/reverse control DC motor
Built-in motor speed control circuit
Built-in TSD (thermal shut down) circuit
Built-in mute mode
Operating supply voltage(4.5V~13.2V)
Descriptions
The CMD4508 is a 5-CH motor driver for
CD-p/VCD/DVD systems. It is composed of
2-CH BTL driver, 2-CH driver with current
feedback and 1-CH forward/reverse control
DC motor driver.
Internal Block Diagram
MUTE BIAS VINTK
TRB 2
NC
VINLD
GND
VCTL
NC
VCC2
VOLD-
VOLD+ VOTK- VOTK+
28
27
26
25
24
23
22
GND
PGND
21
20
19
VCC2
18
17
16
15
MUTE
10K
15K
10K
Thermal
Shut down
+
-
25K
25K
+
-
+
10K
1
VINFC
2
TR B
1
3
REGO2
VINSL+ REGO1 FWD
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 1 of 6
Rev
1.0
Dec. 15,2004
Fax:886-3-3521052
-
+
-
+
Spindle
Driver
Actuator
Driver
VCC2
VCC2
VCC1
+
-
25K
Sled
Driver
Pre-DRV
Actuator
Driver
TRAY
DRIVER
-
10K
PGND
VCC1
4
5
6
7
REV
8
VCC1
9
10
11
12
13
14
VOTR- VOTR+ VOSL+ VOSL- VOFC- VOFC+
CERAMATE [ CERAMATE TECHNICAL ]
