AN8488SB データシートの表示（PDF） - Panasonic Corporation

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AN8488SB

3-phase full-wave motor driver and DC motor BTL driver IC

Panasonic Corporation 

AN8488SB

I Usage Notes

1. Use the VCC2 at VCC2 ≥ VM2 . And use power supply always at on state. Otherwise it will cause malfunction.

2. On driver gain setting of driver block.

Voltage gain of power amplifier: 23 dB

10 kΩ

10 kΩ

11

500 Ω

×7

4

M Load

Input Input pin

5.5 kΩ

×7

7

Power amp. Output pin

VREF

VREF

3. On operation mode of mute:

H

PC

L (Open)

Driver output

Active

Mute

4. On SS pin mode:

H

Spindle block

On

Driver block

On

SS

M

L (Open)

Off

Off

On

Off

5. On brake mode of spindle block:

BRK

H

L (Open)

EC < ECR

Acceleration

Acceleration

EC > ECR Reverse rotation brake

Short brake

6. Take time to check the characteristics on use.

When changing an external circuit constant for use, consider not only static characteristics, but also transient charac-

teristics and external parts with respect to the characteristics difference among ICs so that you can get enough margin.

7. Avoid short-circuit between output pin and power supply, output pin and GND (line-to-supply and line-to-ground

fault) and output pins (load short-circuit). Otherwise the IC will be damaged and is likely to get fired.

8. Be cautious on a dip soldering. Prior study is required.

SDD00009BEB

5

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