NJU7328
Single-phase DC Brushless Motor Driver IC
♦
GENERAL DESCRIPTION
The NJU7328 is a single-phase DC brushless motor
driver IC for small fan-motor application. It features
MOS-FET driver circuit for better saturation characteristics.
Slew late of amplifiers and feedback resistors are optimized
to achieve low-noise motor operation. The NJU7328 also
includes. Frequency generator (FG) output for various
control needs.
♦
PACKAGE OUTLINE
NJU7328RB1
♦
FEATURES
•
Single Supply
•
Operating Voltage V
DD
=2.4
∼
5.5V
•
Low Operating Current
•
Low Saturation Output Voltage
Vsat=±0.35V @Io=±250mA
•
C-MOS Technology
•
FG Output
•
Package Outline
TVSP8
♦
PIN CONFIGURATIONS
PIN FUNCTION
1
2
3
4
A
– +
B
– +
8
7
6
5
1: A OUTPUT
2: Reverse INPUT
3: Non-Reverse INPUT
4: Vss
5: FG
6: NC
7: B OUTPUT
8: V
DD
- 1-
NJU7328
♦
ABUSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage
Operating Temperature
Range
Storage Temperature Range
Power Dissipation
V
DD
=2.4V
∼
5.5V
(Ta=25°C)
RATINGS
+7.0
-0.3
∼
V
DD
+0.3
-40
∼
+85
-50
∼
+150
400
SYNBOL(unit)
V
DD
(V)
V
ID
(V)
Topr (
°C
)
Tstg (
°C
)
P
D
(mW)
NOTE
TVSP8 (Single)
♦
RECOMMENDED OPERATING CONDITIONS
♦
ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Voltage
Range
Operating Current
Input Offset Voltage
Input Common
Mode Voltage
Range
Maximum Output
Voltage Range
Feedback
Resistance
FG H Leak Current
FG L Voltage
SYSMBOL
V
DD
I
DD
V
IO
V
ICM
CONDITION
-
-
-
-
Io=+250mA
Io= -250mA
R
F
FGH
FGL
-
2pin=0V,pin=5V,R
P
=10kΩ
2pin=5V, 3pin=0V,R
P
=10kΩ
MIN.
2.4
-
-15
0.4∼4.0
4.55
-
22.0
-
-
TYP.
5.0
3.0
-
-
4.65
0.35
27.5
-
-
(V
+
=5V, Ta=25°C)
MAX.
5.5
4.0
-15
-
-
0.45
33.0
1.0
0.3
UNIT
V
mA
mV
V
V
OM
V
kΩ
µA
V
- 2-
NJU7328
♦
APPLICATION
M
V
DD
1
2
3
4
V
SS
A
– +
B
+ –
8
7
6
5
Hall
Sensor
The specifications on this data book are only given for
information, without any guarantee as regards either
mistakes or omissions. The application circuit in this data
book are described only to show representative usages of
the product and not intended for the guarantee or
permission of any right including the industrial rights.
- 3-
测试/测量
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