BA6901F Просмотр технического описания (PDF) - ROHM Semiconductor
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BA6901F Datasheet PDF : 21 Pages
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BA6901F
●Application circuit example(Constant values are for reference)
Datasheet
Incorporates
charging
and
discharging pulse circuit and enables
speed control corresponding to
ambient temperature with use of
thermistor.
Incorporates power supply
clamp circuit and enables
application of high voltage.
Enables speed control by
pulse input.
Lock detection ON time and lock
detection OFF time can be set.
Phase compensating capacitor
when current is limited.
5kΩ
〜200kΩ
0.1μF
〜4.7μF
0.47μF
〜4.7μF
0.001μF
〜0.1μF
CR
1
FG
2
AL
3
ALB
4
PWM
5
LD
6
CNF
7
GND
8
Lock
Detect
Auto
Restart
PWM
+
-
+
-
+
-
REG
A2
TOUT
16
Vcc
15
A2
14
A1
A1
13
CL
12
-
+
CS
11
H-
10
-
+
H+
HALL
9
Take a measure against Vcc voltage
rise generated by reverse connection
of current and back electromotive
force.
Output Tr is equipped externally.
Provide a back electromotive force
regenerating current route by Zenner
diode for clamping.
Current limit setting resistor.
〜5Ω
Output current detecting resistor. Pay
attention to wattage because large
current is present
Set according to the amplitude
of hall element output and hall
input voltage range.
Fig.12 application circuit
Substrate design note
a) IC power, motor outputs, and motor ground lines are made as fat as possible.
b) IC ground (signal ground) line is common with the application ground except motor ground (i.e. hall ground etc.),
and arranged near to (–) land.
c) The bypass capacitor and/or Zenner diode are arrangement near to Vcc terminal.
d) H+ and H– lines are arranged side by side and made from the hall element to IC as shorter as possible,
because it is easy for the noise to influence the hall lines.
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
8/17
TSZ02201-0H1H0B100500-1-2
18.DEC.2012 Rev.002
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