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PDF LA6557H Data sheet ( Hoja de datos )
| Número de pieza | LA6557H | |
| Descripción | Five-Channel Bridge Driver for MD and CD Players | |
| Fabricantes | Sanyo | |
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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.
Features and Functions
• Four BTL power amplifier channels and one H-bridge
power amplifier channel
• IOmax: 700 mA (each channel)
• Built-in level shifter circuits (BTL amplifiers)
• One muting circuit (output on/off control) system that
operates for the BTL amplifiers
• Thermal shutdown circuit built in
Package Dimensions
unit: mm
3234-HSOP28H-C
[LA6557H]
15.3
6.2
2.7
28 15
1
0.85
14
0.8 0.3
0.25
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Maximum output current
Maximum input voltage
Mute pin voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IOmax
VINBmax
VMUTE
Pd max
Topr
Tstg
Conditions
For each channel in channels 1 to 5
Independent IC
Mounted on the specified printed circuit board*
Note: * Specified printed circuit board: 76.1 × 114.3 × 1.6 mm3 glass-epoxy PCB
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Symbol
VCC
Conditions
SANYO: HSOP28H-C (375mil)
Ratings
14
0.7
13
13
0.82
2.0
–30 to +85
–55 to +150
Unit
V
A
V
V
W
W
°C
°C
Ratings
5.6 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
51900RM (OT) No. 6350-1/8
1 page  
LA6557H
Continued from preceding page.
Pin No.
19
Pin
REG-IN
Function
Regulator input (base of the external pnp transistor)
20 REG-OUT Regulator output (collector of the external pnp transistor)
21 VREF-IN Reference voltage input
22 VCC-S Signal system power supply (shorted to VCC1 and VCC2)
Equivalent circuit
VCC 1
(12)
25 MUTE Output on/off control for channels 1 to 4 (the BTL amplifiers)
26 S-GND Signal system ground
MUTE 25
100 kΩ
100 kΩ
S-GND 26
HM0004
27 FWD Channel 5 (VLO) output switching (FWD), logic input to the
loading block
Channel 5 (VLO) output switching (REV), logic input to the
28
REV
loading block
27 FWD
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, VCC-S, VCC1, and VCC2 must be shorted together externally to the IC.
HM0005
No. 6350-5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LA6557H.PDF ] | |
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