INTEGRATED CIRCUITS
DATA SHEET
TZA1048
4-channel BTL driver for
CD/DVD drives
Product specification
2004 Mar 09
Philips Semiconductors
Product specification
4-channel BTL driver for CD/DVD drives
CONTENTS
1Features
2Applications
3General description
4Ordering information
5Block diagram
6Pinning
7Functional data
7.1General notes
8Limiting values
9Characteristics
10Test and application information
11Package outline
TZA1048
12Soldering
12.1Introduction to soldering surface mount packages
12.2Reflow soldering
12.3Wave soldering
12.4Manual soldering
12.5Suitability of surface mount IC packages for wave and
reflow soldering methods
13Data sheet status
14Definitions
15Disclaimers
2004 Mar 09
2
Philips Semiconductors
Product specification
4-channel BTL driver for CD/DVD drives
1
FEATURES
2
APPLICATIONS
TZA1048
•
Two Bridge-Tied Load (BTL) driver channels for sled
and spindle motors and actuators
•
Pulse Width Modulation (PWM) input
•
Integral thermal shut-down circuit
•
Integral mute control
•
Two regulated reference voltage outputs for other chips
in system; 3.3 V and 1.8 V respectively
•
HSOP28 package.
4
ORDERING INFORMATION
•
BTL driver for CD and DVD players.
3
GENERAL DESCRIPTION
The TZA1048 is a four-channel BTL driver IC for driving
motors and actuators in CD and DVD players.
Two reference voltage outputs are also available for
peripheral ICs such as servo and pick-up head drivers.
The spindle motor control inputs to the IC can be either
differential or single-ended.
PACKAGE
TYPE NUMBER
NAME
TZA1048TH
HSOP28
DESCRIPTION
plastic, heatsink small outline package; 28 leads
VERSION
SOP007
2004 Mar 09
3
Philips Semiconductors
Product specification
4-channel BTL driver for CD/DVD drives
5
BLOCK DIAGRAM
TZA1048
VOUT3.3
28
3.3 V
GENERATOR
1.8 V
GENERATOR
x1
1
V
CC
VFBIN3.3
27
2
RADOUTN
VOUT1.8
26
x1
3
FOCOUTP
VFBIN1.8
25
4
x1
MUTE
24 kΩ
32.3 kΩ
GND
MUTE
24
5
FOCOUTN
RADIN
23
x1
6
RADOUTP
FOCIN
22
24 kΩ
32.3 kΩ
7
V
CC
TZA1048
32.3 kΩ
SLIN
21
24 kΩ
x1
8
V
CC
VBIASIN
20
32.3 kΩ
9
SLOUTP
x1
GND
19
10
SLOUTN
VBIASOUT
18
x0.5
32.3 kΩ
11
12
GND
MOTBIAS
17
MOTOUTP
MOTIN1
16
24 kΩ
x0.5
13
MOTOUTN
MOTIN2
15
24 kΩ
14
V
CC
mce470
Fig.1 Block diagram.
2004 Mar 09
4
Philips Semiconductors
Product specification
4-channel BTL driver for CD/DVD drives
6
PINNING
SYMBOL
V
CC
RADOUTN
FOCOUTP
GND
FOCOUTN
RADOUTP
V
CC
V
CC
SLOUTP
SLOUTN
GND
MOTOUTP
MOTOUTN
V
CC
MOTIN2
MOTIN1
MOTBIAS
VBIASOUT
GND
VBIASIN
SLIN
FOCIN
RADIN
MUTE
VFBIN1.8
VOUT1.8
VFBIN3.3
VOUT3.3
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
supply voltage
radial coil driver negative output
focus coil driver positive output
ground
focus coil driver negative output
radial coil driver positive output
supply voltage
supply voltage
sled motor driver positive output
sled motor driver negative output
ground
spindle motor driver positive output
spindle motor driver negative output
supply voltage
spindle motor driver input 2
spindle motor driver input 1
spindle motor bias input
1.65 V bias voltage output
ground
bias voltage input
sled motor driver input
focus coil driver input
radial coil driver input
mute control input
DESCRIPTION
TZA1048
1.8 V generator/regulator feedback voltage input
1.8 V generator/regulator output
3.3 V generator/regulator feedback voltage input
3.3 V generator/regulator output
2004 Mar 09
5