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PDF FAN8006D3 Data sheet ( Hoja de datos )
| Número de pieza | FAN8006D3 | |
| Descripción | 4-CH Motor Driver | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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FAN8006D3
4-CH Motor Driver
www.fairchildsemi.com
Features
• 4-Channel BTL (Balanced transformer-less) driver
• Built-in thermal shutdown circuit
• Built-in power save circuit
• Separated power supply
• Operating supply voltage: 4.5V ~ 13.2V
• Corresponds to 3.3V or 5V DSP
Description
The FAN8006D3 is a monolithic integrated circuit, suitable
for 4-CH motor driver which drives focus actuator, tracking
actuator, sled motor and loading motor of a CD-media sys-
tem.
28-SSOPH-375SG2
Target Application
• Compact disk player
• Digital video disk player
• Compact disk ROM
Ordering Information
Device
Package
FAN8006D3 28-SSOPH-375SG2
FAN8006D3TF 28-SSOPH-375SG2
Ope. Temp.
−35°C ~ +85°C
−35°C ~ +85°C
©2002 Fairchild Semiconductor Corporation
Rev. 1.0.0
1 page  
Equivalent Circuits (Continued)
POWER OUTPUT
28 9 10 19
11 12
13 14
15 16
17 18
FAN8006D3
CHANNEL OPAMP INPUT
28
2KΩ
2
24 25Ω 1KΩ
27
28
2KΩ
1KΩ 25Ω
3
23
26
CHANNEL OP-AMP OUTPUT
28
20KΩ
20KΩ
10KΩ
27p
25Ω
20KΩ
4 22 25
CHANNEL 2 INPUT
28
28
20KΩ
20KΩ 1KΩ
25Ω 10KΩ
5
BIAS INPUT
28
28
25Ω
1
STANDBY 1/2 INPUT
28
28
20KΩ
28
25Ω
7
80KΩ
40KΩ
40KΩ
25Ω
20
1KΩ
20KΩ
1KΩ
1KΩ
5
5 Page 
4. CH1/3/4 Drive Output Schematic
Inside IC
13 16 18 DO
10K
M
Power amp
DO+ 14 15 17
10K
9 19
PowVccCH1
(PowVccCH3/4)
R−
R
PowVccCH1
(PowVccCH3/4)
1
Bias
Current Conveyor Type 2
20K
10K
FAN8006D3
2 24 27
3 23 26
4 22 25
• The reference voltage BIAS is given externally through pin 1.
• The input OP-amp output signal is amplified by (20K/10K) times and then fed to the current conveyor type 2 circuit and the
power amp circuit.
• The power amp circuit produces the differential output voltages and drives two output power amplifier circuits.
• Since the differential gain of the power amplifier is equal to 2 × (1+10K / 10K) , the output signal of the input OP-amp is
amplified totally 8.
• If the total gain is insufficient or large, the input OP-amp and the external resistors can be used to adjust the gain.
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet FAN8006D3.PDF ] | |
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