ML5954 Datasheet, PDF (1/6 Pages) Minilogic Device Corporation Limited – ML5954 4-channel BTL driver for CD-ROM Driver & DVD Player

ML5954
_______________________________________________________________
ML5954 4-channel BTL driver for CD-ROM Driver & DVD Player
™ Application
‹ CD-ROM Driver
‹ DVD player
™ Features
z Wide Dynamic Range (4.0V(Typ.) When
V_CC=12V, PV_CC=5V and R_L=8Ω)
z Level Shift Circuit on-chip
z Thermal Shutdown Circuit on-chip
z Internal Standby Mode.
z HSOP-28 package
™ General Description
The ML5954 is a four-channel BTL driver IC for driving the motors and actuators in products such as
CD-ROM and DVD. Two channels use current feedback to minimize the current phase shift caused by the
influence of load inductance. The IC is used in CD-ROM drivers and DVD players.
™ Block Diagram
28
27
+
Standby
Thermal
Shut Down
26
25
24
23
22
10kΩ
-
20kΩ
+-
7.5kΩ
7.5kΩ
x2
Det Amp
21
20
19
18
17
16
15
PVcc2
10kΩ
15kΩ
-
+
Loading
Driver
PVcc1
Actuator
Driver
PVcc2
+-
7.5kΩ ^{Det Amp}
x2
+-
20kΩ
7.5kΩ
10kΩ
+-
1
2
3
4
5
6
10kΩ
7
Vcc
+
SLED
-
Driver
25kΩ
Vcc
PVcc1 _PGND
8
9
10
11
12
Actuator
Driver
13
14
BTL Driver for CD-ROM Drivers & DVD Player
1/6
May, 2004 V1.0