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AZ5954M28-E1中文资料

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

General Description

The AZ5954 is a four-channel BTL driver IC for driv-ing the motors and actuators in products such as CD-ROM and DVD. Two of the channels use current feed-back to minimize the current phase shift caused by the influence of load inductance. The IC is used in CD-ROM drivers and DVD drivers, etc.

The AZ5954 is available in HSOP-28 package.

Features

·Wide Dynamic Range (3.9V(Typ.) When V CC =12V , PV CC =5V and R L =8?) ·Level Shift Circuit On Chip

·Thermal Shutdown Circuit On Chip ·

Internal Standby Mode

Applications

·CD-ROM Driver ·

DVD Driver

HSOP-28

Figure 1. Package Type of AZ5954

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

Pin Configuration

M Package (HSOP-28)

Figure 2. Pin Configuration of AZ5954 (Top View)

BCD Semiconductor Manufacturing Limited

Apr. 2005 Rev. 1. 1 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Pin Number

Pin Name Function

1VINFC Focus driver input

2CFCerr1For connection of capacitor for the error amp filter 3CFCerr2For connection of capacitor for the error amp filter 4V IN SL+Op Amp input (+) for the sled driver 5V IN SL-Op Amp input (-) for the sled driver 6VOSL Op Amp output for the sled driver 7VNFFC Focus driver feedback pin 8V CC Supply voltage

9PV CC1Power supply voltage for sled driver block 10PGND Ground for sled driver block 11VOSL-Sled driver output (-)12VOSL+Sled driver output (+)13VOFC-Focus driver output (-)14VOFC+Focus driver output (+)15VOTK+Tracking driver output (+)16VOTK-Tracking driver output (-)17VOLD+Loading driver output (+)18VOLD-Loading driver output (-)19PGND Ground for actuator driver block 20VNFTK Tracking driver feedback pin

21PV CC2Power supply voltage for actuator driver block 22GND Ground

23V IN LD Loading driver input

24CTKerr2For connection of capacitor for the error amp filter 25CTKerr1For connection of capacitor for the error amp filter 26V IN TK Tracking driver input 27BIAS Bias input 28

STBY

Standby control

Note 1: The indicated polarities for the output pin are for when all inputs are (+).

The outptut H bridge power supply pins are PV CC2 for the focus, tracking channel, PV CC1 for the loading channel, and V CC for the pre-block and sled channel. Always ensure that V CC ≥PV CC.

Pin Description (Note 1)

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Apr. 2005 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

Figure 3. Functional Block Diagram of AZ5954

Functional Block Diagram

BCD Semiconductor Manufacturing Limited

Apr. 2005 Rev. 1. 1 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Package Temperature Range Part Number

Marking ID

Packing Type Tin Lead Lead Free Tin Lead Lead Free HSOP-28

0 to 70o C

AZ5954M28

AZ5954M28-E1

AZ5954M28

AZ5954M28-E1

Tube

Parameter Symbol Value Unit Supply V oltage V CC , PV CC1/2

13.5V Power Dissipation P D 1.7 (Note 3)W

Storage Temperature Range

T STG

-55 to 150

o C

Note 2: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.

Note 3: The power dissipation is reduced by 13.6mW for each increase in temperature of 1o C over 25o C.

Absolute Maximum Ratings (Note 2)

Parameter Symbol Min Max Unit Supply V oltage V CC 4.013.2V PV CC1 4.0V CC V PV CC2 4.0V CC V

Operating Temperature

T A

o C

Recommended Operating Conditions

Ordering Information

BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.

Circuit Type Package

M28: HSOP-28

E1: Lead Free

Blank: Tin Lead

AZ5954

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

Parameter Symbol Test Conditions

Min

Typ Max Unit Quiescent Current ΙCC 18

27mA Standby Current ΙST 0.5mA Standby-on V oltage V STON All channels off 00.5

V Standby-off V oltage V STOFF

All channels on

2.0

Actuator Driver Output Offset Current I OO -66

mA Maximum Output Amplitude V OM V IN = V BIAS ± 1.5V 3.6 3.9V Transmission Gain

V IN = V BIAS ± 0.2V

1.3

1.55

1.7A/V

Sled Motor Driver/Pre Op Amp Common Input V oltage Range V ICM V BIAS = 6V -0.311.0V V CC = PV CC1 = 5V

-0.3

4.0V Input Bias Current I IB 14300nA Output Low Level V oltage V OL 0.10.3

V Output Source Current I SO 0.30.58

mA Output Sink Current I SI

Sled Motor Driver Output Offset V oltage V OOFSL -100100

mV Maximum Output V oltage V OMSL V IN =V BIAS ± 1.5V 7.58.8V Closed-loop V oltage Gain G VSL

V IN =V BIAS ± 0.2V

18.0

20.0

22.0dB

Loading Motor Driver Output Offset V oltage V OOFLD V IN = V BIAS ± 0.2V -5050

mV Maximum Output V oltage V OMLD V IN = V BIAS ± 2.0V 7.58.7V V IN = V BIAS ± 1.5V V CC = PV CC1 = 5V 3.6 3.9V Closed-loop V oltage Gain G VLD V IN = V BIAS ± 0.2V 13.515.517.5dB Gain Error by Polarity

?G VLD

V IN = V BIAS ± 0.2V

2dB

(T A = 25o C, V CC = 12V , PV CC1 = PV CC2 = 5V , V BIAS = 2.5V , R L1 = R L2 = R L3 = R L4 = 8?, R D = 0.5?, C FC =C TK = 100pF, unless otherwise specified.)

Electrical Characteristics

BCD Semiconductor Manufacturing Limited

Apr. 2005 Rev. 1. 1 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Figure 4. Test Circuit of AZ5954

Test Circuit

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

Figure 7. Driver I/O Characteristics (Sled)Figure 8. Op Amp I/O Characteristics

Figure 5. Driver I/O Characteristics (Focus and Tracking)

Figure 6. Driver I/O Characteristics (Loading)

Typical Performance Characteristics

BCD Semiconductor Manufacturing Limited

Apr. 2005 Rev. 1. 1 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Figure 9. Op Amp Phase-Frequency, Amplitude- Frequency Characteristics

Typical Performance Characteristics (Continued)

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

Figure 10. Typical Application of AZ5954 in DVD Player

Typical Application

BCD Semiconductor Manufacturing Limited

Apr. 2005 Rev. 1. 1 4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Application Information

This IC has a built-in thermal shutdown circuit that mutes the output current when the chip tem-perature reached 178o C (Typ.). The hysteresis is set to 25o C (Typ.), so the driver circuits start up again when the chip temperature falls to 153o C (Typ.).

The driver buffer is switched off when the supply voltage falls below 3.5V (Typ.), and is switched back on when the voltage reaches 3.7V (Typ.)again.

In case standby pin voltage under 0.5V or opened, quiescent current is muted. Standby pin voltage should be over 2.0V for normal applica-tion.

BIAS pin (pin 27) should be pulled up more than 1.2V . In case bias pin voltage is pulled down under 0.9V (Typ.), output current is muted.

Insert the by-pass capacitor (approximately 0.1μF) between V CC -pin and GND-pin as near as possible to this IC.

Heat dissipation fins are attached to the GND on the inside of the package. Make sure to connect these to external GND.

Supplement: (Current-feedback driver)

The transmission gain (output current/input voltage) is given by:

gm = 1 / (R D + R WIRE ) (A/V)

R WIRE is the total gold wire resistance inside the package (0.15 ? ± 0.05 ? ) (Typ.).

4-CHANNEL BTL MOTOR DRIVER FOR CD-ROM/DVD AZ5954

Apr. 2005 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

Mechanical Dimensions

HSOP-28

Unit: mm(inch)

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BCD Semiconductor Corporation

3170 De La Cruz Blvd, Suite # 105 Santa Clara, CA 95054-2411, U.S.A Tel: +1-408-988 6388, Fax: +1-408-988 6386 Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.

800 Yi Shan Road, Shanghai 200233, PRC Tel: +86-21-6485-1491, Fax: +86-21-5450-0008 Advanced Analog Circuits (Shanghai) Corporation

8F, B Zone, 900 Yi Shan Road, Shanghai 200233, PRC Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 BCD Semiconductor (Taiwan) Company Limited

Room 2210, 22nd Fl, 333, Keelung Road, Sec. 1, TaiPei (110), Taiwan Tel: +886-2-2758 6828, Fax: +886-2-2758 6892

IMPORTANT NOTICE

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any pro-ducts or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limi-ted does not convey any license under its patent rights or other rights nor the rights of others.