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PDF BA6908F Data sheet ( Hoja de datos )
| Número de pieza | BA6908F | |
| Descripción | Single-phase full-wave motor driver for fan motor | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Motor driver ICs
BA6908F
Single-phase full-wave motor driver for
fan motor
BA6908F
BA6908F is a single phase full-wave motor driver for fan motor corresponding to 5V and 12V. Switching noise is reduced
by soft switching drive. This IC has lock detection and automatic restart functions as motor protection function.
zApplications
Motor drivers for fan motors
zFeatures
1) Single-phase full-wave drive system.
2) Built-in power transistor.
3) Soft switching drive.
4) Lock detection and automatic restart circuit.
5) Thermal shut-down circuit.
6) Hall signal output.
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Supply voltage
VCC
Power dissipation
Pd
Operating temperature
Topr
Storage temperature
Tstg
Output current
IOUT
Hall signal output current
IHO
Output voltage
VOUT
Hall signal output voltage
VHO
Junction temperature
Tjmax
∗1 To use at temperature above Ta=25°C reduce 5.5mW/°C.
(On 70.0mm×70.0mm×1.6mm glass epoxy board)
∗2 This value is not to be over Pd and ASO.
Limits
15
687 ∗1
−40 to +85
−55 to +150
0.7 ∗2
15
15
15
150
Unit
V
mW
°C
°C
A
mA
V
V
°C
zRecommended operating conditions (Ta=25°C)
Parameter
Supply voltage
Symbol Min. Typ.
VCC 3 −
Max.
14
Unit
V
1/7
1 page  
Motor driver ICs
zApplication circuit
1
2
3
4
BA6908F
REG
LOCK
DETECTION
AND
AUTO RESTART
8
M
7
Control
TSD
HALL
AMP
6 HALL
5
Fig.5
zCautions
1) Thermal shut down(TSD)
This IC is built-in TSD.
TSD has the temperature hysteresis.
Output ON
Output OFF
TSD OFF
TSD ON
150
Junction temperature(°C)
Fig.6 TSD
175
TSD ON (Typ. : 175°C)
All output transistor OFF.
TSD OFF (Typ. : 150°C)
Reset ordinary motion.
(It has the temperature hysteresis
of 25°C<TYP>)
2) Power dissipation
IC power dissipation widely varies with supply voltage, output current and application of IC. Please be careful for the
thermal design not to exceed the allowable power dissipation.
5/7
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet BA6908F.PDF ] | |
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