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參數(shù)資料
| 型號(hào)： | FAN8010MPX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | 1 Channel DC Motor Driver |
| 中文描述： | 1 CHANNEL CD MOTOR DRIVER, DSO10 |
| 封裝： | 3 X 3 MM, MLP-10 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大小： | 392K |
| 代理商： | FAN8010MPX |
FAN8010MP
8
Application Informations
1. Logic Inputs and Outputs
FAN8010MP has two input pins, IN1and IN2. The following truth table shows the relationship of the inputs and out-
puts
.
2. Constant Output Current Control
The voltage, V
ADJ
pin is 0.2V typically which is obtained by a internal reference and a resistor divider as shown in
the figure. The V
ADJ
is used as the output current command and can be adjusted by the external resistor R
OPT
between ADJ and GND. The output current is converted to the voltage V
S
through the current sense resistor R
S.
By the negative feedback loop, the V
S
is regulated to V
ADJ
. Actually 50mW, which is the sum of the internal bond-
ing resistance and internal metal resistance, should be added to the R
S.
The output current is calculated
as followings ;
If oscillation or overshoot get loaded on the output current, they can be removed by connecting a ceramic capacitor
ranged from 1nF to 10nF between the FC pin and GND. When a capacitor is used, output response time is delayed
as the capacitance increases.
3. Unregulated Voltage Control
When the exact current control is not needed, the sense pin should be connected to the GND, and FAN8010MP is
operated as a normal H-bridge driver.
4. Thermal Shutdown
Thermal Shutdown Circuit turns OFF all outputs when the junction temperature typically reaches 175
°
C. It is
intended to protect the device from failures due to excessive junction temperature
.
The Thermal Shutdown has the hysteresis of 25
°
C approximately.
IN1
L
H
L
H
IN2
L
L
H
H
OUT1
Z
H
L
H
OUT2
Z
L
H
H
Remark
Standby
Rotation
Rotation
Brake
I
O
V
ADJ
(
)
R
S
R
+
W
(
)
1.38 R
OPT
7K
||
)
{ 40K
R
OPT
VM
7K
||
+
)
R
S
(
R
W
+
)
}
=
=
H-BRIDGE
M
Reference
1.38V
ADJ
FC
Sense
Rs
OUT1
OUT2
Rw
IN1~2
40K
7K
R
OPT
Vs
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