FAN8024CD Ver la hoja de datos (PDF) - Fairchild Semiconductor

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FAN8024CD

4-Channel Motor Driver

Fairchild Semiconductor 

FAN8024CD

Application Information

1. Reference Input & Stand-by Function

• Reference input (PIN 27)

The applied voltage at the reference input pin must be ranged between 0.8V and 6.5V, when VCC=8.5V.

• Stand-by input (PIN 28)

The following input conditions must be satisfied for the stand-by function.

Stand-by input voltage

OPERATION

below 0.5V or open

The stand-by function is activated so the bias block and

power block are disabled

above 2.0V

Recover the normal operation

2. Protection Function

Thermal shutdown (TSD)

If the chip temperature rises above 175°C, the thermal shutdown (TSD) circuit is activated and the output circuit enters the

mute state, that is off state. The TSD circuit has a temperature hysteresis of 25°C

3. Separation Of Power Supply

• PVCC1 (PIN 9)

PVCC1 is the power supply for the loading driver. The range is between 5V ~ 12V.

• PVCC2 (PIN 21)

PVCC2 is the power supply for the actuator drivers that include focus and tracking actuators. The range is between 5V ~ 12V

• VCC (PIN 8)

VCC pin supplies power for the sled driver and the signal logic part. VCC≥PVCC1(PVCC2).

8

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