參數(shù)資料
型號(hào)： BD6718FV-E2
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： BRUSHLESS DC MOTOR CONTROLLER, 0.02 A, PDSO20
封裝： ROHS COMPLIANT, SSOP-20
文件頁(yè)數(shù)： 5/34頁(yè)
文件大?。?/td> 1916K
代理商： BD6718FV-E2
13/40
●
Block diagram, application circuit, and pin assignment(Constant etc are for reference)
◎
BD6709FS
1) DC input application
The example of an application for rotation speed control by thermistor.
PIN No.
Terminal
name
Function
PIN No.
Terminal
name
Function
1
GND
GND terminal
9
OUT2
Motor output terminal 2
2
COSC
Oscillating capacitor connecting terminal
10
CS
Output current detecting terminal
3
LAOUT
Level amplifier output terminal
(for setting speed control gain)
11
Vcc
Power supply terminal
4
LAIN
Level amplifier input terminal
(for setting speed control gain)
12
CL
Current limiting input terminal
5
VTH
Variable speed input terminal
(thermistor connecting terminal)
13
H+
Hall input terminal +
6
VMIN
Minimum rotating speed setting terminal
14
H-
Hall input terminal -
7
OUT1
Motor output terminal 1
15
VREF
Reference voltage terminal
8
RNF
Output current detecting resistor connecting terminal
(motor GND terminal)
16
FG
Rotating speed pulse signal output terminal
TSD
Lock Detect
Auto Restart
Pre Driver
M
Control
HALL
REF
OSC
REG
GND
1
LAIN
4
COSC
2
VTH
5
VMIN
6
LAOUT
3
OUT1
7
RNF
8
Vcc
11
CS
10
OUT2
9
H-
14
H+
13
CL
10
12
FG
16
VREF
15
Vcc
+
-
+
-
+
-
+
-
5kΩ
～
200kΩ
～
5Ω
100pF
～
0.1μF
5kΩ
～
200kΩ
5kΩ
～
200kΩ
330pF
～
1000pF
5kΩ
～
200kΩ
100Ω
～
200kΩ
1kΩ
～
200kΩ
～
10μF
P.22
P.36
P.37
P.28
P.24
P.21,22
P.22
Adjust the gain according to
the characteristics of level
amplifier gain setting resistor.
Bias resistor for thermistor.
Speed control is enabled by
thermistor.
Set
the
minimum
rotating
speed and full torque time in
restarting.
Output
current
detecting
resistor.
Pay
attention
to
wattage because large current
flows.
This is an open collector
output. Connect a pull-up
resistor.
Set according to the amplitude
of hall element output and hall
input voltage range.
Current limit setting resistor.
Use a larger resistor in order to
reduce
power consumption
from VREF.
Take a measure against Vcc
voltage rise due to reverse
connection of power supply.
RNF
voltage
smoothing
low-pass filter.
REG：Internal reference voltage OSC：Oscillation circuit REF：Reference voltage generating circuit
TSD：Thermal shutdown(heat rejection circuit)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BD6721FS 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
BD6721FS_1 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:Single-Phase Full-Wave Motor Driver for Fan Motor
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