NJM2625
PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC
鈾ENERAL
DESCRIPTION
The
NJM2625
is a 3-phase DC brush-less motor
control IC with PWM control.
It incorporates hall amplifiers, PWM control circuits,
totem-pole pre drivers for external power MOS
transistors, current limit and frequency generator
circuit.
The NJM2625 easily implements speed control and
rotation direction control for DC motor application.
鈾EATURES
鈥perating
Voltage
鈥re-Driver
Circuit
鈥urrent
Limit Sense Voltage
鈥nternal
Oscillator
鈥orward
or Reverse Direction
鈥G
Signal Output
鈥nternal
Soft Start
鈥nternal
ON/OFF Circuit
鈥ipolar
Technology
鈥ackage
Outline
鈾ACKAGE
OUTLINE
NJM2625D
NJM2625M
(V
+
=8V to 18V)
(Iout=+50mA/-150mA MAX.)
(Current limit=0.5V鹵10%)
(Frequency control for external capacitor)
(Output frequency to hall frequency)
(External capacitor to Verr pin.
(No-output is Verr pin to GND.)
DIP20, DMP20
鈾IN
CONFIGRATION
1
2
3
4
5
6
7
20
19
18
17
16
15
14
13
12
8
9
10
PIN FUNCTION
11.GND
1.FG
12.I
LIMIT
2.Vref
13.WL
3.H1+
4.H1-
14.VL
5.H2+
15.UL
6.H2-
16.WH
17.VH
7.H3+
18.UH
8.H3-
19.V
+
9.Verr
20.F/R
10.OSC
11
NJM2625D
NJM2625M
Ver 1.0
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