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Ordering number : ENN7814
SANYO Semiconductors
DATA SHEET
LA6242H
Overview Functions and Features
* * * * * * * *
Four-Channel Bridge Driver for CD Player
Monolithic Linear IC
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.
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
Parameter Supply voltage
25 C
Symbol VCC_S VCCP Pdmax VINB IO max VMUTE Topr Tstg Each output VCCP1, VCCP2 Independent IC Mounted on the specified PCB (114.3 76.1 1.6 mm, glass epoxy) Conditions 1 1 Ratings 14 14 0.8 1.8 13 1 13 30 to 85 55 to 150 Unit V V W W V A V C C
Allowable power dissipation Maximum input voltage Maximum output current MUTE pin voltage Operating temperature Storage temperature
Note 1: All of the power supply pins, VCC_S, VCCP1, and VCCP2, must be connected to the power supply system externally to the IC.
Recommended Operating Conditions at Ta
Parameter Supply voltage Symbol VCC
25 C
Conditions Ratings 5 to 13 Unit V
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 = 25C.)
Parameter [Overall] Quiescent current 1 Quiescent current 2 Muting function on voltage Muting function off voltage Input amplifier offset voltage Output voltage I/O gain Slew rate [Input Operational Amplifier] Output offset voltage OP-AMP_SINK OP-AMP_SOURCE [Input Operational Amplifier Switching] Input amplifier switching voltage 1 Input amplifier switching voltage 2 VIN1-SW VIN1-SW Channel 1, with input operational amplifier B selected 5 Channel 1, with input operational amplifier A selected 5 Between the and outputs for each channel and outputs for each 2 0.5 V V VOFF1 OP_SINK OP_SOURCE Input operational amplifiers A and B Input operational amplifier sink current Input operational amplifier source current 10 2 300 500 10 mV mA A ICC-ON ICC-OFF VMUTE-ON VMUTE-OFF VOFF_OPAMP VO1 VG1 SR1 All channel outputs on, MUTE pin: high All channel outputs off, MUTE pin: low MUTE 1 MUTE 1 Channel 1, input operational amplifiers A and B RL 3 With the amplifier operating independently, twice the value measured between outputs 4 8 2 2 0.5 30 5 45 10 mA mA V V Symbol Conditions Ratings min typ max Unit
[BTL Amplifier] (Channel 1) (Output Amplifier Block) 50 6.2 5.4 6.5 6 0.5 6.6 50 mV V Multiplier V/ s
[BTL Amplifier] (Channels 2 to 4) (Output Amplifier Block) Output offset voltage Output voltage I/O gain Slew rate [Regulator Voltage] VREG output voltage REG-IN sink current Line regulation Load regulation VREG REG-IN-SINK VOLN VOLD 6 The base current of the external PNP transistor 6V 5 mA VCC IO 12 V, IO 200 mA 200 mA 1.21 5 1.26 10 20 50 150 200 1.31 V mA mV mV VOFF2 VO2 VG2 SR2 Amplifier independently, twice the value measured between outputs 4 50 5 5.4 5.4 6 0.5 6.6 50 mV V Multiplier V/ s RL 8 , between the channel 2
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 VIN1-SW is high, operational amplifier A operates, and when low, operational amplifier B operates. 6: For testing, short the REGOUT to the collector of the external pnp transistor.
No.7814-2/9
LA6242H
Package Dimensions unit: mm 3234B
Pd max
Allowable power dissipation, Pd max -- W
2.5
-- T a
Specified PCB: 76.1
x 114.3 x 1.6 mm
PCB material: glass epoxy
2.0 1.8
Mounted on the specified PCB
1.5
1.0
Independent IC
0.8
0.94
0.5
0.42
0 --20 0 20 40 60 80 100 ILA06712
SANYO : HSOP28HC (375mil)
Ambient temperature, T a
--
C
Pin Functions
Pin No. 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 Note: Symbol VIN1 A VIN1 A VCCP1 VO1 VO1 VO2 VO2 VO3 VO3 VO4 VO4 VCCP2 VIN4 VIN4G VIN3 VIN3G VIN2 VIN2G REGIN REGOUT VCC_S VREFIN MUTE VIN1-SW S_GND VIN1 B VIN1 B VIN1 Channel 1 input amplifier A inverting input Channel 1 input amplifier A noninverting input Channels 1 and 2: power stage power supply Channel 1 output ( ) Channel 1 output ( ) Channel 2 output ( ) Channel 2 output ( ) Channel 3 output ( ) Channel 3 output ( ) Channel 4 output ( ) Channel 4 output ( ) Channels 3 and 4: power stage power supply Channel 4 input Channel 4 input (gain adjustment) Channel 3 input Channel 3 input (gain adjustment) Channel 2 input Channel 2 input (gain adjustment) Base connection of external PNP transistor Regulator error amplifier input (+) Signal system power supply Reference voltage input Output on/off control Channel 1 input operational amplifier switching Signal system ground Channel 1 amplifier B noninverting input Channel 1 amplifier B inverting input Channel 1 input and input operational amplifier output Pin description
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. The VCC_S (signal system power supply), VCCP1, and VCCP2 (output stage power supplies) must be shorted together externally.
No.7814-3/9
LA6242H
Pin Functions
Pin No. 1 2 26 27 28 Pin name Input (channel 1) Symbol VIN1 A VIN1 A VIN1 B VIN1 B VIN1
VIN1
Pin description Inputs The total gain is set by setting the gain of the input amplifier.
VCC_S
Equivalent circuit
VIN1 VIN1
S-GND
4 5
Output (channel 1)
VO1 VO1
Channel 1 output
VCCP V O1
VCC_S
6 7 8 9 10 11
Output (channels 2 to 4)
VO2 VO2 VO3 VO3 VO4 VO4
Channel 2 to 4 outputs
VCCP
VCC_S
VO
23
MUTE
MUTE
Controls the on/off states of the corresponding channel output. MUTE MUTE high: Output on low: Output off
VCC_S
S-GND
24
Channel 1 input amplifier switching
VIN1-SW
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: VIN_A Low: VIN_B
VIN1-SW
100k
: When the MUTE pin is open, the outputs will be off. (The same as when the MUTE pin is low.)
100k
MUTE
Continued on next page.
No.7814-4/9
LA6242H
Continued from preceding page. Pin No. 17 18 15 16 13 14 Pin name Input (channels 2 to 4) VIN2 VIN2G VIN3 VIN3G VIN4 VIN4G Symbol Inputs Pin description
VIN VING VCC_S
Equivalent circuit
Vref
22
VREF
VREFIN
Reference voltage
VREFIN
19 20
REG
REGIN REGOUT
Regulator block
10k
REGIN
REGOUT
100
No.7814-5/9
LA6242H
MUTE, VIN1-SW * Relationship between the MUTE pin and the outputs
MUTE H L Outputs CH1 CH2 on off CH3 CH4
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 H L Channel 1 input operational amplifier AMP_A AMP_B
Internal reference voltage (2.5 V (TYP)) VIN1-B
External reference voltage VIN1-A
0.5V
2V
VIN1-SW
* Muting
MUTE L H Output amplifiers off on
Overview of the input/output relationship
66k 22k
Level shifter
VIN VINVIN+ 11k
11k
V O1 66k 22k V O1
VREFIN
Note : Only channel 1 has an added input operational amplifier.
No.7814-6/9
LA6242H
Block Diagram
"H" | { VIN1+A VCCP1 VO1+ VO1VO2+ VO22 3
66 k
VIN1-A
1
VIN1_SW "H": OP-AMP_A "L": OP-AMP_B
28 27 | { 26
VIN1 VIN1-B VIN1+B S-GND VIN1-SW MUTE VREFIN
"L"
Level shifter
4
66 k
| { 22 k | { 22 k | { 22 k | { 22 k
22 k 22 k 22 k
22 k
11 k 11 k
| {
Signal system 25 ground 24
5
66 k
6
66 k
Level shifter
All outputs on/off H: ON MUTE L: OFF
23 22
7
Power system ground FR FR
66 k
| {
Power system ground
FR
FR
VO3+ VO3VO4+ VO4VCCP2
8
66 k
| { 22 k | { 22 k
22 k 22 k
Level shifter
22 k
Signal system power supply
(VCC)
21 20 19 18
VCC_S REGOUT
9
66 k
| REGIN { REGOUT
10
66 k
| { 22 k
22 k
Level shifter
REGIN VIN2G VIN2 VIN3G VIN3
11 12
| { 22 k
11 k 11 k
11 k 11 k
| {
17 16
VIN4
13
| {
11 k 11 k
VIN4G 14
| {
15
No.7814-7/9
LA6242H
Sample Application Circuit
1 Sled input 2 3 LOADING/SLED l 5 SPINDLE l 7 6 4
VIN1-A VIN1+A VCCP1 VO1+ VO1VO2+ VO2-
VIN1 VIN1-B VIN1+B S-GND VIN1-SW MUTE
28 27 26 25 24 23
Loading input
H:SLED L:LOADING
VREFIN 22
FR
FR
FR FR
8 FOCUS 9 10 TRACKING 11 12 13 14 Tracking input
VO3+ VO3VO4+ VO4VCCP2
VCC_S REGOUT
21 20 19 VCC 18 17 Spindle input 16 15 Focus input
REGIN VIN2G VIN2 VIN3G VIN3
VIN4 VIN4G
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

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