LA6242H [SANYO]
Four-Channel Bridge Driver for CD Player; 四通道桥驱动器的CD播放机
| 型号： | LA6242H |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Four-Channel Bridge Driver for CD Player |
| 文件： | 总9页 (文件大小：546K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENN7814
SANYO Semiconductors
DATA SHEET
Monolithic Linear IC
Four-Channel Bridge Driver
for CD Player
LA6242H
Overview
The LA6242H is a four-channel motor driver IC for home and car CD players. It provides a pin for switching the
channel 1 input.
Functions and Features
• Four bridge-connected (BTL) power amplifier circuits
• IO max: 1 A
• Built-in level shifter circuits
• Muting circuit (on/off control for all outputs)
• High output voltage (dynamic range): 6.5 V (typical, channel 1 only)
• Built-in input operational amplifier (channel 1 only)
• Channel 1 input operational amplifier switching function
• Built-in regulator that uses an external PNP transistor and is set by the value of an external resistor.
Specifications
Maximum Ratings at Ta 25qC
Parameter
Symbol
Conditions
Ratings
Unit
V
V
_S
CC
ꢀ1
ꢀ1
14
14
Supply voltage
VCCP
Pdmax
VINB
VCCP1, VCCP2
Independent IC
V
0.8
W
Allowable power dissipation
Mounted on the specified PCB
(114.3 u 76.1 u 1.6 mm, glass epoxy)
1.8
W
Maximum input voltage
Maximum output current
MUTE pin voltage
13
1
V
A
I
max
Each output
O
VMUTE
Topr
13
V
Operating temperature
Storage temperature
ꢁ30 to ꢂ85
qC
qC
Tstg
ꢁ55 to ꢂ150
Note ꢀ1: All of the power supply pins, V _S, VCCP1, and VCCP2, must be connected to the power supply system externally to the IC.
CC
Recommended Operating Conditions at Ta 25qC
Parameter
Symbol
Conditions
Ratings
Unit
V
Supply voltage
V
5 to 13
CC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control
systems, or other applications whose failure can be reasonably expected to result in serious physical and/or
material damage. Consult with your SANYO representative nearest you before using any SANYO products
described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co., Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
81004TN (OT) No. 7814-1/9
LA6242H
Electrical Characteristics
(Unless specified otherwise, the conditions are VCC_S = VCCP1 = VCCP2 = 8 V, VREF = 2.5 V, MUTE = 5 V,
Ta = 25°C.)
Ratings
Parameter
Symbol
Conditions
Unit
min
typ
max
[Overall]
I
-ON
Quiescent current 1
All channel outputs on, MUTE pin: high
All channel outputs off, MUTE pin: low
MUTE ꢀ1
30
45
mA
mA
V
CC
I
-OFF
Quiescent current 2
5
10
CC
Muting function on voltage
Muting function off voltage
VMUTE-ON
VMUTE-OFF
2
MUTE ꢀ1
0.5
V
[BTL Amplifier] (Channel 1) (Output Amplifier Block)
Input amplifier offset voltage
VOFF_OP-
AMP
Channel 1, input operational amplifiers A and B
ꢁ50
ꢂ50
mV
V
V 1
O
R 8 : ꢀ2
L
Output voltage
I/O gain
6.2
5.4
6.5
6
VG1
SR1
ꢀ3
6.6 Multiplier
With the amplifier operating independently,
twice the value measured between outputs ꢀ4
Slew rate
0.5
V/Ps
[Input Operational Amplifier]
Output offset voltage
VOFF1
OP_SINK
Input operational amplifiers A and B
Input operational amplifier sink current
Input operational amplifier source current
ꢁ10
2
ꢂ10
mV
mA
PA
OP-AMP_SINK
OP-AMP_SOURCE
OP_SOURCE
300
500
[Input Operational Amplifier Switching]
Channel 1, with input operational amplifier B
selected ꢀ5
Input amplifier switching voltage 1
Input amplifier switching voltage 2
V
V
1-SW
1-SW
0.5
V
V
IN
Channel 1, with input operational amplifier A
selected ꢀ5
2
IN
[BTL Amplifier] (Channels 2 to 4) (Output Amplifier Block)
Output offset voltage
Output voltage
I/O gain
VOFF2
Between the ꢂ and ꢁ outputs for each channel
ꢁ50
5
ꢂ50
mV
V
R
L
8 :, between the ꢂ and ꢁ outputs for each
V 2
O
5.4
6
channel ꢀ2
VG2
SR2
5.4
6.6 Multiplier
Amplifier independently, twice the value
measured between outputs ꢀ4
Slew rate
0.5
V/Ps
[Regulator Voltage]
VREG output voltage
REG-IN sink current
Line regulation
VREG
REG-IN-SINK
'VOLN
ꢀ6
1.21
5
1.26
10
1.31
V
The base current of the external PNP transistor
mA
mV
mV
6 V d V
d 12 V, I 200 mA
20
150
200
CC
O
Load regulation
'VOLD
5 mA d I d 200 mA
50
O
Note ꢀ1: When the MUTE pin is high, the outputs will be on, and when low, the outputs will be off. (In the amplifier output off state, the outputs are in the
high-impedance state.) This operation applies to all channels.
ꢀ2: The voltage across the load terminals when an 8 : load is connected across the outputs. With the input either high or low. With the output in
the saturated state.
ꢀ3: The channel 1 input operational amplifier has a 0 dB gain, i.e. it is a buffer amplifier.
ꢀ4: Design guarantee value
ꢀ5: When V 1-SW is high, operational amplifier A operates, and when low, operational amplifier B operates.
IN
ꢀ6: For testing, short the REGOUT to the collector of the external pnp transistor.
No.7814-2/9
LA6242H
Package Dimensions
unit: mm
3234B
×
×
SANYO : HSOP28HC (375mil)
Pin Functions
Pin No.
Symbol
Pin description
V
1ꢁA
1
Channel 1 input amplifier A inverting input
IN
IN
V
1ꢂA
2
Channel 1 input amplifier A noninverting input
Channels 1 and 2: power stage power supply
Channel 1 output (ꢂ)
3
VCCP1
V 1ꢂ
4
O
V 1ꢁ
O
5
Channel 1 output (ꢁ)
V 2ꢂ
O
6
Channel 2 output (ꢂ)
V 2ꢁ
O
7
Channel 2 output (ꢁ)
V 3ꢂ
O
8
Channel 3 output (ꢂ)
V 3ꢁ
O
9
Channel 3 output (ꢁ)
V 4ꢂ
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Channel 4 output (ꢂ)
O
V 4ꢁ
O
Channel 4 output (ꢁ)
VCCP2
Channels 3 and 4: power stage power supply
Channel 4 input
V 4
IN
V
4G
3
Channel 4 input (gain adjustment)
Channel 3 input
IN
V
IN
V
3G
2
Channel 3 input (gain adjustment)
Channel 2 input
IN
V
IN
V 2G
IN
Channel 2 input (gain adjustment)
Base connection of external PNP transistor
Regulator error amplifier input (+)
Signal system power supply
Reference voltage input
REGIN
REGOUT
V _S
CC
VREFIN
MUTE
Output on/off control
V
1-SW
IN
Channel 1 input operational amplifier switching
Signal system ground
S_GND
V
V
1ꢂB
1ꢁB
1
Channel 1 amplifier B noninverting input
Channel 1 amplifier B inverting input
IN
IN
V
Channel 1 input and input operational amplifier output
IN
Note: x The center frame (FR) is used as the power system ground (P-GND). Along with the signal system ground (S-GND), this level must be the lowest
potential in the system.
x The V _S (signal system power supply), VCCP1, and VCCP2 (output stage power supplies) must be shorted together externally.
CC
No.7814-3/9
LA6242H
Pin Functions
Pin No.
Pin name
Symbol
1ꢁA
Pin description
Equivalent circuit
1
Input
V
IN
V
IN
V
IN
V
IN
V
IN
Inputs
V
1
V 1
IN
ꢁꢀ
IN
V
_S
CC
2
(channel 1)
1ꢂA
1ꢂB
1ꢁB
1
The total gain is set by setting the
gain of the input amplifier.
26
27
28
V
1
ꢂꢀ
IN
S-GND
4
5
Output
V 1ꢂ
Channel 1 output
O
V
_S
CC
(channel 1)
V 1ꢁ
O
VCCP
V
1
O
6
7
Output
V 2ꢂ
Channel 2 to 4 outputs
O
V
_S
CC
(channels 2 to
4)
V 2ꢁ
O
8
V 3ꢂ
O
VCCP
9
V 3ꢁ
O
10
11
V 4ꢂ
O
V
O
V 4ꢁ
O
23
MUTE
MUTE
Controls the on/off states of the
corresponding channel output.
V
_S
CC
MUTE high: Output on
MUTE low: Output off
ꢀ: When the MUTE pin is open,
the outputs will be off. (The
same as when the MUTE pin is
low.)
MUTE
S-GND
24
Channel 1 input
amplifier
switching
V 1-SW
IN
Channel 1 input operational
amplifier switching function. Either
amplifier A or amplifier B is
selected according to the voltage
applied to the VIN1-SW pin.
High: V _A
IN
V
1-SW
IN
Low: V _B
IN
Continued on next page.
No.7814-4/9
LA6242H
Continued from preceding page.
Pin No.
17
Pin name
Symbol
Pin description
Equivalent circuit
Input (channels
2 to 4)
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
2
Inputs
V
IN
18
2G
3
V
G
IN
15
V
_S
CC
16
3G
4
13
14
4G
Vref
22
VREF
VREFIN
Reference voltage
VREFIN
19
20
REG
REGIN
Regulator block
REGOUT
REGIN
REGOUT
No.7814-5/9
LA6242H
MUTE, VIN1-SW
• Relationship between the MUTE pin and the outputs
Outputs
MUTE
CH1
CH2
CH3
CH4
H
L
on
off
Note ꢀ1: When the outputs are off, they are in the high-impedance state.
ꢀ2: The muting function applies to all channels.
• VIN1-SW and the channel 1 input operational amplifier
VIN1_SW
Channel 1 input operational amplifier
H
L
AMP_A
AMP_B
Internal reference
voltage
(2.5 V (TYP))
External reference voltage
V
1-B
IN
V
1-A
IN
V
1-SW
IN
0.5V
2V
• Muting
MUTE
Output amplifiers
L
off
on
H
Overview of the input/output relationship
66k
:
:
22k
22k
:
:
11k
:
V
IN
ꢁ
V
V
1
1
ꢂ
11k
:
O
O
ꢂ
V
-
IN
ꢁ
ꢂ
ꢁ
66k
V
+
IN
ꢂ
ꢁ
ꢂ
ꢁ
ꢂ
ꢁ
VREFIN
ꢁ
ꢂ
Note ꢀ: Only channel 1 has an added input operational amplifier.
No.7814-6/9
LA6242H
Block Diagram
“H”
V
1-A
1
2
3
4
5
6
7
28
27
26
25
24
23
22
V
V
V
1
IN
IN
IN
IN
V
1_SW
|
{
IN
“L”
“H”: OP-AMP_A
“L”: OP-AMP_B
V
1+A
1-B
1+B
IN
|
{
VCCP1
66 k
:
:
:
:
22 k
:
:
11 k
:
|
{
Signal system
ground
V 1+
S-GND
22 k
11 k
:
O
|
{
66 k
66 k
66 k
22 k
22 k
:
:
|
{
V 1-
V
1-SW
IN
O
All outputs on/off
H: ON
MUTE
L: OFF
22 k
22 k
:
:
|
{
V 2+
MUTE
O
22 k
22 k
:
:
|
{
V 2-
VREFIN
O
Power system
ground
Power system ground
|
{
FR FR
FR
FR
66 k
66 k
66 k
66 k
:
:
:
:
Signal system
power supply
22 k
22 k
:
:
|
{
V 3+
8
9
21
20
19
18
17
16
15
V
_S
O
CC
(V
)
CC
22 k
22 k
:
:
REGIN
|
{
|
{
V 3-
O
REGOUT
REGIN
REGOUT
22 k
22 k
:
:
|
{
V 4+
O
10
22 k
22 k
:
:
|
{
V 4- 11
O
V
V
V
V
2G
2
IN
IN
IN
IN
11 k
11 k
:
11 k
:
:
VCCP2 12
|
{
11 k
:
11 k
:
13
14
|
{
V
4
IN
3G
3
:
11 k
|
{
V
4G
IN
No.7814-7/9
LA6242H
Sample Application Circuit
1
2
3
4
5
6
7
28
27
26
25
24
23
22
V
1-A
V 1
IN
IN
Sled input
V
1+A
IN
V
1-B
IN
Loading input
VCCP1
V 1+B
IN
LOADING/SLED
V 1+
O
S-GND
‚ l
V 1-
O
V
1-SW
IN
H:SLED
L:LOADING
SPINDLE
V 2+
O
MUTE
‚ l
V 2-
O
VREFIN
FR
FR
FR
FR
8
21
20
19
18
17
16
15
V 3+
V
_S
CC
O
FOCUS
9
V 3-
O
REGOUT
REGIN
10
11
12
13
14
V 4+
O
TRACKING
V
CC
V 4-
O
V
2G
IN
VCCP2
V
2
IN
Spindle input
Focus input
V
4
IN
V 3G
IN
V
4G
IN
V 3
IN
Tracking input
No.7814-8/9
LA6242H
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could give
rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that
could cause damage to other property. When designing equipment, adopt safety measures so that these
kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits
and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products
must not be exported without obtaining the export license from the authorities concerned in accordance
with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system, of
otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for
the SANYO product that you intend to use.
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
This catalog provides information as of August, 2004. Specifications and information herein are subject to
change without notice.
No.7814-9/9
相关型号：
©2020 ICPDF网 联系我们和版权申明