la6557h Sanyo Semiconductor Corporation, la6557h Datasheet

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la6557h

Manufacturer Part Number
la6557h
Description
Five-channel Bridge Driver For Md And Cd Players
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
Ordering number : ENN6350
Overview
The LA6557H is a five-channel bridge driver developed
for use in CD and MD players. It provides four BTL
power amplifier channels and one H-bridge power
amplifier channel.
Features and Functions
• Four BTL power amplifier channels and one H-bridge
• I
• Built-in level shifter circuits (BTL amplifiers)
• One muting circuit (output on/off control) system that
• Thermal shutdown circuit built in
Specifications
Maximum Ratings at Ta = 25°C
Note: * Specified printed circuit board: 76.1
Operating Conditions at Ta = 25°C
Supply voltage
Maximum output current
Maximum input voltage
Mute pin voltage
Allowable power dissipation
Operating temperature
Storage temperature
Recommended supply voltage
power amplifier channel
operates for the BTL amplifiers
O
max: 700 mA (each channel)
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
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.
Parameter
Parameter
SANYO Electric Co.,Ltd. Semiconductor Company
Five-Channel Bridge Driver for MD and CD Players
114.3
V
V
Symbol
Pd max
Symbol
I
V
CC
IN
O
Topr
Tstg
V
MUTE
1.6 mm
max
Bmax
CC
max
3
glass-epoxy PCB
For each channel in channels 1 to 5
Independent IC
Mounted on the specified printed circuit board*
Package Dimensions
unit: mm
3234-HSOP28H-C
Conditions
Conditions
0.85
1
28
0.8
15.3
6.2
2.7
[LA6557H]
SANYO: HSOP28H-C (375mil)
0.3
51900RM (OT) No. 6350-1/8
15
Monolithic Linear IC
14
–55 to +150
–30 to +85
Ratings
Ratings
LA6557H
5.6 to 13
0.82
0.7
2.0
14
13
13
0.25
Unit
Unit
°C
°C
W
W
V
A
V
V
V

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la6557h Summary of contents

Page 1

... Ordering number : ENN6350 Overview The LA6557H is a five-channel bridge driver developed for use in CD and MD players. It provides four BTL power amplifier channels and one H-bridge power amplifier channel. Features and Functions • Four BTL power amplifier channels and one H-bridge power amplifier channel • ...

Page 2

... The voltage across an 8 Ω load. With the output saturated. 3. MUTE: When the MUTE pin is high, the outputs will be on, and when low, off (high impedance) 4. These values are design guarantee values, and are not tested. LA6557H Pd max — Ta 3.0 2 ...

Page 3

... Pin Assignment LA6557H LA6557H Top view No. 6350-3/8 ...

Page 4

... Channel 4 input (gain adjustment) IN Notes: The center frame (FR) functions as the power system ground. It must be, along with S-GND, at the lowest potential in the system. The power supply pins and LA6557H Function 1 and V - and (15,17,24 (16,18,23) Vref 2 must be shorted together externally to the IC ...

Page 5

... REV loading block Notes: The center frame (FR) functions as the power system ground. It must be, along with S-GND, at the lowest potential in the system. The power supply pins and LA6557H Function 1 and MUTE S-GND 2 must be shorted together externally to the IC. ...

Page 6

... O Power supply for channels 1 and LA6557H Thermal shutdown circuit The MUTE pin functions as follows: High: output on Low: output off 22 k – + Signal system power supply 5 V REG (with an external PNP transistor) + – – ...

Page 7

... LA6557H 28 2 REV FWD 27 5– S-GND MUTE O 4– 3– LA6557H -IN O REF 2– 20 REG-OUT REG-IN O 1– ...

Page 8

... 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 May, 2000. Specifications and information herein are subject to change without notice. LA6557H ...

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