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參數資料
| 型號： | FAN8048 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 2 DC-DC Converter & 4-CH PWM Motor IC |
| 中文描述： | DISK DRIVE MOTOR CONTROLLER, 0.5 A, PDSO48 |
| 封裝： | 7 X 7 MM, LQFP-48 |
| 文件頁數： | 13/34頁 |
| 文件大小： | 903K |
| 代理商： | FAN8048 |
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FAN8048
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2. H-Bridge Driver (CH1, CH2, CH3 and CH4 )
2-1. H-Bridge Driver for Actuators and Sled Motor (CH2, CH3 and CH4)
Channel 2, channel 3, and channel 4 have two inputs FWD and RVE and an H-bridge type of output to the forward or reverse
Sled motor and the Focus and Tracking actuator as shown in Figure 5. The H-bridge driver operation is as in the following log-
ical truth table below. That is, to forward or reverse, the output is the same as the input, and when the two input signals match,
the lower switching devices (switches B and C) are turned-on, Sled motor, Focus and Tracking actuator are in braking state.
Figure 5. Block Diagram of H-Bridge driver for CH2, CH3 and CH4
2-2. Logical Truth Table
2-3. H-Bridge driver for spindle motor (CH1)
Figure 6 shows spindle motor driver. The circuit consists of 3-states of input (High, Low, and High impedance) to perform for-
warding, reversing, and braking of the motor. The detailed operation is shown in logical truth table.
Figure 6. Block Diagram of H-Bridge driver for Spindle motor
2-4. Logical Truth Table
Note:
1. Z is high impedance input
FWD
REV
OUT+
OUT-
Function
L
L
L
L
Brake
L
H
L
H
Reverse
H
L
H
L
Forward
H
H
L
L
Brake
INPUT
MO1
MO2
CH+
CH-
Function
H
H
H
H
L
Forward
L
L
L
L
H
Reverse
Z
L
H
L
L
Brake
FWD
PVCC
43
44
A
B
C
D
32
31
P
VG
VSYS
VA
VB
VC
VD
REV
OUT+
OUT-
LOGIC AND PREDRIVER
PVCC
45
46
A
B
C
D
VG
VSYS
VA
VB
VC
VD
CH1
CH1+
CH1-
P
30
MO1
MO2
50K
LOGIC AND PREDRIVER
OUTPUT STAGE
VSYS1
50K
70K
60K
40K
80K
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| FAN8082D | 功能描述:馬達/運動/點火控制器和驅動器 DC Motor Driver Bi Directional RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8082DTF | 功能描述:馬達/運動/點火控制器和驅動器 DC Motor Driver Bi Directional RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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