FAN8024CD Fairchild Semiconductor, FAN8024CD Datasheet - Page 9

• Manufacturer Part Number: FAN8024CD
• Description: 2 Channel Current Mode + 2CH BTL Driver
• Manufacturer: Fairchild Semiconductor

4. Current feedback channels(channel 1 & 4)
• The reference voltage(ref) is given externally through pin 27.
• The input OP-amp output signal is amplified by (20K/10K) times and then fed to the current feedback amplifier.
• The current feedback amplifier compares the output current sensed input and command input then makes the controlled
• The DC gain of current feedback amplifier and power amplifier is unity, that is 1 [A/V]. Users can change the gain by
5. Channel 2 schematic
• The reference voltage(ref) is given externally through pin 27.
• The input OP-amp can be used for several purposes, for example low pass filter, differential input coordinator, gain scaler
Command
output to eliminate delay effect of the load. Please refer to the application note for more information about current feedback
theory(http://www.fairchildsemi.com/an/AN/AN-4109.pdf).
adding external resistor at the command input.
and so on.
10k
ref
20k
10k
ref
current feedback amp
7.5k
7.5k
25k
Rext
Cext
power amp
X2
power amp
M
Sensing resistor
actuator
FAN8024CD
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