NJU7360 New Japan Radio Co.,Ltd, NJU7360 Datasheet - Page 6

• Manufacturer Part Number: NJU7360
• Description: Nju7360 Single-phase Dc Brushless Motor Driver Ic
• Manufacturer: New Japan Radio Co.,Ltd

NJU7360
With minimal external components, that can drive up to 250mA of motor current for small fan application.
[Application Circuit Example]
[Design Notes]
components:
1. Selection of C1 and D1:
2. Position Detection Circuit Hall Device
1) Hall Bias unused application circuit
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APPLICATION NOTE
The NJU7360 are single-phase DC brushless motor driver IC in small TVSP8 package.
Above application example is designed for 5V operation with motor current of 250mA. It uses the following
Hall elements: HW101A (AKE)
Optimize the value in actual operating conditions if necessary. D1 is a diode for protection against reverse voltage
supply. Silicon rectifier diode (WO3C, 10D1 and equivalent) is appropriate.
2-1. When using HB (R1 design)
temperature characteristics is obtained, resulting in stable linear drive. If it is necessary to adjust the Hall output
amplitude, perform adjustment with R1.
2-2. When using V
The input bias voltage for the amplifier must be used within the Hall input common mode voltage (0.4 - V
including the amplitude of the signal. It is recommended that the Hall bias voltage be one half of the power supply
voltage, that is, V
When it is necessary to increase the Hall bias current to increase the Hall output amplitude, obtain Hall bias from V
By connecting a Hall device to the Hall bias terminal (HB), a constant Hall output amplitude that has good
C1 is used for a noise reduction purpose. A typical value is 0.1uF.
GND
V+
DD
DD
/2.
(R2 and R3 design)
D1
element
C1
Hall
R1
HB
IN+
IN-
NJU7360
VDD
OUTA
OUTB
FG
FG
R
L
Motor
Ver.2007-12-25
DD
-1 V)
DD
.