la6585m Sanyo Semiconductor Corporation, la6585m Datasheet - Page 4

• Manufacturer Part Number: la6585m
• Description: For Motor Driver Btl Driver Single-phase Full-wave
• Manufacturer: Sanyo Semiconductor Corporation

Pin Assignment
Sample Application Circuit
*1: When the breakdown protective DI at reverse connection is to be used, it is necessary to insert the capacitor Cr to
*2: To obtain Hall bias from V CC , carry out bias to V CC with resister R2 as shown in the
*3: To obtain Hall bias from the HB pin, carry out constant-voltage bias at about 1.5V, which enables the Hall element
*4: Keep this open when not using.
*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 must be provided to enhance the reliability when there is no
capacitor near the fan power line.
made through voltage control of the coil by amplifying the Hall output. When the Hall element output is large, the
startup performance and efficiency are improved. Adjustment of the Hall element can reduce the noise further.
to generate the stable Hall output satisfactory in temperature characteristics. Adjustment of the Hall output
amplitude is made with R1. (When V CC =12V, the step *2 above proves advantageous for IC heat generation.)
In this case, insert the capacitor as shown in the figure.
On board element
*1
Di
*2
OUT1
IN+
HB
IN-
CT
Cr
R2
H
*5
LA6585M
Top view
LA6585M
HB
IN-
IN+
CT
V CC
GND
RD
FG
V CC
OUT2
GND
OUT2
OUT1
FG
RD
figure.
*4
Linear driving is
*3
H
R1
No.8776-4/5
HB
IN-
IN+