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PDF LA6548ND Data sheet ( Hoja de datos )
| Número de pieza | LA6548ND | |
| Descripción | Monolithic Linear IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : EN8767A
LA6548ND
Monolithic Linear IC
For CD Players and Recorders
Four-Channel Driver IC
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The LA6548ND is a four-channel driver IC for CD players and recorders (four BTL amplifier channels).
Functions
• Four BTL connection power amplifier channels
• IO max 0.7A
• Built-in level shifters
• Muting circuit (on/off control of all outputs)
(This circuit applies to the BTL amplifier circuits. It does not control operation of the regulator.)
• Built-in regulator (provides a 3.3V output using an external pnp transistor)
• Thermal protection circuit (thermal shutdown circuit)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Maximum output current
Maximum input voltage
Muting pin application voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IO max
VIN
VMUTE
Pd max
Topr
Tstg
Conditions
For each of the channel 1 to 4 outputs
Ratings
14
0.7
13
13
1.5
-20 to +75
-55 to +150
Unit
V
A
V
V
W
°C
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
42507 TI PC B8-7473 No.8767-1/7
1 page  
Continued from preceding page.
Pin No.
5
6
11
10
20
21
26
25
Pin
VO1+
VO1-
VO2+
VO2-
VO3+
VO3-
VO4+
VO4-
Output pins.
Description
LA6548ND
VCC
Equivalent circuit
33kΩ
VCC
VO*-/+
GND
2 MUTE
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Muting control input.
The outputs will be on when the MUTE pin
is at the high level.
The outputs will be off when the MUTE pin
is at the low level ; in particular, the outputs
go to the high-impedance state at this
time.
GND
VCC
MUTE
GND
40kΩ
30kΩ
VCC
29 VREF
Reference voltage input.
VCC
VREF
GND
VCC
16 RESET
GND
Reset output.
When REG C (3.3VREG) is high, RESET
will be high.
When REG C (3.3VREG) is low, RESET
will be low.
Details of Operating voltage see section
Reset operation.
17 CD
Reset output delay time setting.
The delay time until the point the reset
output switches from low to high is set by
the capacitor connected between this pin
and ground.
Reference to Reset operation.
VCC
REG_C (3.3VREG)
GND
RESET
GND
GND
VCC
CD
GND
No.8767-5/7
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| PDF Descargar | [ Datasheet LA6548ND.PDF ] | |
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