njw4303 New Japan Radio Co.,Ltd, njw4303 Datasheet - Page 21
![no-image](/images/no-image-200.jpg)
njw4303
Manufacturer Part Number
njw4303
Description
Pwm 3-phase Dc Brushless Motor Controller
Manufacturer
New Japan Radio Co.,Ltd
Datasheet
1.NJW4303.pdf
(28 pages)
- Current page: 21 of 28
- Download datasheet (341Kb)
R
FG
TYPICAL APPLICATION CIRCUIT 2
FG-IN
H
H
H
C
FRC
C
C1
VERR
R1
C
OSC
VERR
D1
DEC
OSC
GND
S/S
H1+
H1-
H2+
H2-
H3+
H3-
FRC
FR
BR
N1
N2
R2
R3
V-IN
TSD
Saw
Oscillator
+
-
+
-
+
-
Comparator
COMP1
+
+
+
-
Dead
Time
Ct
Position
PWM Logic
Decode
Detect
Rotor
Lock
FG-OUT
<Reference Value>
C1=22nF
R1=10kΩ
R2=40kΩ
R3=10kΩ
D1:1S2076
COMP1:NJM2903
+
-
+
C
VREF
C
ct
VREF
V-FG
VREF
FG
UVLO
VCC
C
VCC
ILIMIT
UH
VH
WH
VL
WL
UL
+
Lowpass Filter
NJW4303
3Phase Motor
+
S
- 21 -
N
N
VM
GND
S
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