Ordering number : ENN6350
Monolithic Linear IC
LA6557H
Five-Channel Bridge Driver for MD and CD Players
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.
Package Dimensions
unit: mm
3234-HSOP28H-C
[LA6557H]
15.3
6.2
2.7
Features and Functions
鈥?Four BTL power amplifier channels and one H-bridge
power amplifier channel
鈥?I
O
max: 700 mA (each channel)
鈥?Built-in level shifter circuits (BTL amplifiers)
鈥?One muting circuit (output on/off control) system that
operates for the BTL amplifiers
鈥?Thermal shutdown circuit built in
28
15
0.65
0.25
1.3
Ratings
14
Unit
V
A
V
V
W
W
擄C
擄C
0.7
13
13
0.82
2.0
鈥?0 to +85
Ratings
5.6 to 13
Unit
V
1
14
0.85
2.25
0.8
0.3
2.5max
Specifications
Maximum Ratings
at Ta = 25擄C
Parameter
Supply voltage
Maximum output current
Maximum input voltage
Mute pin voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
I
O
max
V
IN
Bmax
V
MUTE
Pd max
Topr
Tstg
Independent IC
0.1
SANYO: HSOP28H-C (375mil)
Conditions
For each channel in channels 1 to 5
Mounted on the specified printed circuit board*
鈥?5 to +150
Note:
*
Specified printed circuit board: 76.1
脳
114.3
脳
1.6 mm
3
glass-epoxy PCB
Operating Conditions
at Ta = 25擄C
Parameter
Recommended supply voltage
Symbol
V
CC
Conditions
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鈥檚
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
51900RM (OT) No. 6350-1/8
10.5
7.9
4.9
1
2
3
4
5
6
7
8
