LA6583MC SANYO [Sanyo Semicon Device], LA6583MC Datasheet - Page 4

• Manufacturer Part Number: LA6583MC
• Description: Monolithic Linear IC Fan Motor Driver BTL Driver Single-Phase Full-Wave
• Manufacturer: SANYO [Sanyo Semicon Device]

Sample Application Circuit
*1: When Di to prevent breakdown in case of reverse connection is used, it is necessary to insert a capacitor Cr to
*2: When the Hall bias is taken from the HB pin, constant-voltage bias is made with about 1.3V.
*3: In this IC, the Hall output amplitude is amplified to produce the drive waveform.
*4: Keep this open when this is not used.
*5: When the wiring from the Hall output to IC Hall input is long, noise may be carried through the wiring.
secure the regenerative current route. Similarly, Cr is necessary to enhance the reliability when there is no capacitor
near the fan power line.
Therefore, the Hall output becomes the stable amplitude voltage satisfactory in temperature characteristics.
By inserting R2 to obtain the Hall bias from both V CC and HB, as shown in the figure, heat generation of IC can be
suppressed.
Therefore, the switching time of the current application direction is determined by the Hall output, causing change
in the characteristics of motor. If the Hall element output amplitude is large, the start-up performance and efficiency
of the IC are improved. On the other hand, if the Hall element output amplitude is small, low-noise drive is ensured.
Adjust the Hall element output amplitude by R1.
In this case, insert the capacitor as shown in the figure.
Elements in substrate
*1
Di
Cr
*2
H
R2
*5
LA6583MC
HB
IN +
LA6583MC
GND
V CC
OUT1
OUT2
RD
FG
*4
*3
R1
H
No.A2034-4/5
HB
IN +