Page 1
Monolithic Linear IC
No. 5638
CD-ROM Drive Three-Channel Bridge (BTL) Driver
Overview
The LA6529M is a three-channel bridge (BTL) driver for
CD-ROM drives.
Functions and Features
• Three bridge-tied load (BTL) power amplifier channels
•IOmax: 1 A
• Muting circuit
• Thermal shutdown circuit
LA6529M
Package Dimension
unit: mm
3073A-MFP30SLF
[LA6529M]
SANYO: MFP30SLF
Specifications
Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
V
max 14 V
Supply voltage
Maximum input voltage V
Mute pin voltage V
Allowable power dissipation Pd max 0.9 W
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +150 °C
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Operating voltage 1 V
Operating voltage 2-1 V
Operating voltage 2-2 V
Note: VCC> VS1, VS2
CC
V
max Maximum rating for VS1 and VS214V
S
For the VIN1 through VIN3 input pins 13 V
IN
Mute
CC
1 The operating voltage for CH-U 4 to 13 V
S
2 The operating voltage for CH-V and CH-W 4 to 13 V
S
13 V
4 to 13 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
43097HA(OT) No. 5638-1/4
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LA6529M
Electrical Characteristics at Ta = 25°C, VCC=12 V, VS1 = VS2 = 5 V
Parameter Symbol Conditions
no-load input current drain
V
CC
1 no-load current drain
V
S
2 no-load current drain
V
S
Output offset voltage V
1 to VOF3
OF
Input voltage range V
Buffer amplifier 1 output voltage V
Buffer amplifier 2 output voltage V
BUFFER
BUFFER
Output voltage (source) V
Output voltage (sink) V
min typ max
1 All outputs on (Mute 1, 2: high *)4815mA
I
CC
I
2 All outputs off (Mute 1, 2: low) – 4 10 mA
CC
1-1 CH-U: on (Mute 1: high *)–510mA
I
S
I
1-2 CH-U: off (Mute 1: low) – – 2 mA
S
2-1 CH-V, CH-W: on (Mute 2: high *) – 10 20 mA
I
S
I
2-2 CH-V, CH-W: off (Mute 2: low) – – 4 mA
S
The potential difference between
the + and – sides for CH-U through CH-W
The voltage range for VIN1 through VIN3. 0.5 – 5 V
IN
1
The voltage difference with respect to 1/2 VS1
2
The voltage difference with respect to 1/2 VS2
1 Output high, IO= 700 mA, for + outputs 4.4 4.7 – V
O
2 Output low, IO= 700 mA, for + outputs – 0.3 0.6 V
O
Ratings
Unit
–50 – +50 mV
–50 0 +50 mV
–50 0 +50 mV
Closed loop voltage gain VG Bridge amplifier – 6 – dB
Slew rate SR – 0.15 – V/µs
Mute on voltage V
Mute on current I
MUTE
MUTE
The voltage applied to MUTE1 or MUTE2
1, 2
when the output goes on.
The MUTE1 or MUTE2 influx current when
1, 2
the output goes on.
– 1.5 2 V
–610µA
Note: * CH-U will be on when MUTE1 is high. CH-V and CH-W will be on when MUTE2 is high.
Block Diagram
Level
shifter
Level
shifter
Level
shifter
Thermal shutdown
No. 5638-2/4
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LA6529M
Pin Functions
Pin No. Pin Function Equivalent circuit
1, 2,
14, 15, RF Substrate (minimum potential)
16, 17,
29, 30
3 GND Ground
4V
5V
7V
8V
9V
10 V
1 CH-U input
IN
1A CH-U input (for gain adjustment)
IN
2 CH-V input
IN
2A CH-V input (for gain adjustment)
IN
3 CH-W input
IN
3A CH-W input (for gain adjustment)
IN
6 MUTE1 Sets the CH-U output on or off.
11 BUFFER Buffer amplifier 1 output (1/2 VS1: typical).
OUT1 Used as the reference voltage for
the CH-U output stage.
12 BUFFER Buffer amplifier 2 output (1/2 VS1: typical).
OUT2 Used as the reference voltage for
the CH-V and CH-W output stages.
13 V
CC
Power supply
18 NC Must be left open.
19 MUTE2 Sets the CH-V and CH-W outputs on or off.
20 V
21 W
22 W
23 V
24 V
25 U
26 U
2 CH-V and CH-W output stage power supply
S
–
OUT
OUT
OUT
OUT
OUT
OUT
CH-W inverted output
+ CH-W noninverted output
–
CH-V inverted output
+
CH-V noninverted output
–
CH-U inverted output
+
CH-U noninverted output
Drive
Drive
27 V
28 V
1 CH-U output stage power supply
S
REF
Level shifter circuit reference voltage
(common to all three channels)
No. 5638-3/4
Page 4
Sample Application Circuit
LA6529M
Microcontroller
Microcontroller
Reference value for a
steel substrate
(t = 1 mm)
With a P-board
Independent IC
P-board glass epoxy
Thickness: 1.5 mm
Copper foil
Allowable power dissipation, Pd max – Ta
Ambient temperature, Ta – °C
■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of April, 1997. Specifications and information herein are subject to change
without notice.
No. 5638-4/4
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