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PDF BA6811F Data sheet ( Hoja de datos )
| Número de pieza | BA6811F | |
| Descripción | Fan motor driver IC | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BA6811F (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Motor driver ICs
Fan motor driver IC
BA6811F / BA6813F
The BA6811F and BA6813F are 2-phase, half-wave motor drivers suited for 12V fan motors. Built-in lock detection and
automatic restart mechanisms protect motors. Compact SOP8 (BA6811F / BA6813F) packages reduce the number of
external components required.
FApplications
2-phase fan motors
FFeatures
1) Built-in power transistors.
2) Lock detection and automatic restart mechanisms.
3) Built-in thermal shutdown circuit.
4) Alarm output pin. (BA6811F)
5) Hall signal output pin. (BA6813F)
6) Built-in reverse current protection diode.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
712
1 page  
Motor driver ICs
FApplication example
BA6811F / BA6813F
FOperation notes
(1) Thermal shutdown circuit
The IC has a built-in thermal shutdown circuit. The is a
temperature difference of 25_C (typical) between the
temperatures at which the circuit is activated and deacti-
vated.
The circuit is activated at the temperature of about 175_C
(typical), so that all outputs are turned OFF. Normal op-
eration resumes when the circuit is deactivated.
(2) Power consumption
Power consumed in the IC can be calculated from the fol-
lowing equation :
PC=PC1)PC2)PC3
PC1 is power consumed by the circuit current.
PC1=VCC ICC
PC2 is the output current consumption.
PC2=VOL IO
VOL is the LOW level output voltage of output pins
1 and 2, and IO is the sink current of pins 1 and 2.
PC3 is power consumed by the AL and HO pins.
PC3=VALL IAL)VHOL IHO / 2
where
VALL is the AL-pin LOW level voltage,
IAL is the AL-pin sink current,
VHOL is the HO-pin LOW level voltage,
IHO is the HO-pin sink current.
Make sure that your application does not exceed the al-
lowable power dissipation of the IC.
716
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet BA6811F.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BA6811 | Fan motor driver IC | ROHM Semiconductor |
| BA6811F | Fan motor driver IC | ROHM Semiconductor |
| Número de pieza | Descripción | Fabricantes |
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