|
|
PDF LV47011P Data sheet ( Hoja de datos )
| Número de pieza | LV47011P | |
| Descripción | 4-Channel BTL Power Amplifier | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LV47011P (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
OOrdrdeerirninggnnuummbbeerr: :EENNAA11883388DD
LV47011P
Monolithic Linear IC
4-Channel BTL Power Amplifier
for Car Audio Systems
http://onsemi.com
Overview
The LV47011P is the IC for 4-channel BTL power amplifier that is developed for car audio system.
Pch DMOS in the upper side of the output stage and Nch DMOS in the lower side of the output stage are
complimentary. High power and high quality sound are realized by that.
This IC incorporate various functions (standby switch, muting function, and various protection circuit) necessary for
car audio system. Also, it has a self-diagnosis function.
Functions
High output : PO max = 50W (typical) (VCC = 15.2V, f = 1kHz, RL = 4, Max power)
: PO max = 29W (typical) (VCC = 14.4V, f = 1kHz, THD = 10%, RL = 4)
: PO max = 22W (typical) (VCC = 14.4V, f = 1kHz, THD = 1%, RL = 4)
Built-in muting function (pin 22)
Built-in Standby switch (pin 4)
Built-in Self-diagnosis function (pin 25) :
Signal output in case of output offset detection, shorting to VCC, shorting to ground, and load shorting.
Electric mirror noise decrease
Built-in various protection circuit (shorting to ground, shorting to VCC, load shorting, over voltage and thermal shut
down)
No external anti-oscillation part necessary.
Note 1 : Please do not mistake connection.
A wrong connection may produce destruction, deterioration and damage for the IC or equipment.
Note 2 : The protective circuit function is provided to temporarily avoid abnormal state such as incorrect output
connection. But, there is no guarantee that the IC is not destroyed by the accident.
The protective function do not operate of the operation guarantee range. If the outputs are connected incorrectly,
IC destruction may occur when used outside of the operation guarantee range.
Note 3 : External parts, such as the anti-oscillation part, may become necessary depending on the set condition. Check
their necessity for each set.
Semiconductor Components Industries, LLC, 2013
May, 2013
42512SY/41812SY/O2611SY 20110930-S00015/60811SY/92910SY No.A1838-1/10
1 page  
LV47011P
4. Self-diagnostics function (pin 25)
By detecting the unusual state of the IC, the signal is output to the pin 25.
Also, by controlling the standby switch after the signal of the pin 25 is detected by the microcomputer, the burnout of
the speaker can be prevented.
(1) Shorting to VCC/Shorting to ground : The pin 25 becomes the low level.
(2) Load shorting
: The pin 25 is alternated between the low level and the high level
according to the output signal.
(3) Output offset detection
: when the output offset voltage exceeds the detection threshold voltage,
the pin 25 becomes the low level.
* Note: The output offset abnormality is thought of as the leakage current of the input capacitor.
In addition, the pin 25 has become the NPN open collector output (active low).
The pin 25 must be left open when this function is not used.
5. Sound quality (low frequencies)
By varying the value of input capacitor, low-frequency characteristic can be improved.
However, it is concerned the shock noise. Please confirm in each set when the capacitance value varies.
6. Pop noise
For pop noise prevention, it is recommended to use the muting function at the same time.
Please turn on the muting function simultaneously with power supply on when the amplifier is turned on. Next, turn
off the muting function after the output DC potential stabilization.
When the amplifier is turn off, turn off the power supply after turning on the muting function.
7. Oscillation stability
Pay due attention on the following points because parasitic oscillation may occur due to effects of the capacity load,
board layout, etc.
(1) Capacity load
When the capacitor is to be inserted between each output pin and GND so as to prevent electric mirror noise, select
the capacitance of maximum 1500pF. (Conditions : Our recommended board, RL = 4)
(2) Board layout
Provide the VCC capacitor of 0.1F in the position nearest to IC.
PREGND must be independently wired and connected to the GND point that is as stable as possible, such as the
minus pin of the 2200F VCC capacitor.
In case of occurrence of parasitic oscillation, any one of following parts may be added as a countermeasure.
Note that the optimum capacitance must be checked for each set in the mounted state.
Series connection of CR (0.1F and 2.2) between BTL outputs
Series connection of CR(0.1F and 2.2) between each output pin and GND.
No.A1838-5/10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LV47011P.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LV47011P | 4-Channel BTL Power Amplifier |  Sanyo Semicon Device |
| LV47011P | 4-Channel BTL Power Amplifier | ON Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |