NJU7329A
Single-phase DC Brushless Motor Driver IC
s
GENERAL DESCRIPTION
s
PACKAGE OUTLINE
The NJU7329A is a single-phase DC brushless motor
driver IC for small fan-motor and high power applications. 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 NJU7329A also includes. Frequency
generator (FG) output for various control needs.
NJU7329ARB2
s
FEATURES
•
Operating Voltage V
DD
=2.4
∼
5.5V
•
FG Output
•
Internal Lock Detect / Auto Recovery Circuit
•
Internal Thermal Shutdown Circuit
•
Low Operating Current I
DD
=3mA (Typ.)
•
Low Saturation Output Voltage
Vsat=±0.35V @Io=±350mA
•
C-MOS Technology
•
Package Outline
TVSP10
s
BLOCK DIAGLAM
s
PIN FUNCTION
1: NC
2: OUT A
3: IN-
4: IN+
5: GND
6: NC
7: Ct
8: FG
9: OUT B
10: V
DD
1
TSD
10
2
9
R
F
3
R
F
8
4
Lock Detect
7
5
6
Ver.2003-07-28
-1-
NJU7329A
s
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATINGS
SYMBOL (unit)
V
DD
(V)
V
ID
(V)
I
O PEAK
(mA)
Topr (°C)
Tstg (°C)
P
D
(mW)
(Ta=25°C)
NOTE
Supply Voltage
+7.0
Input Voltage
-0.3
∼
V
DD
+0.3
Output Current (Peak)
600
Operating Temperature Range
-40
∼
+85
Storage Temperature Range
-50
∼
+150
Power Dissipation
400
s
RECOMMENDED OPERATING CONDITIONS
V
DD
=2.4V∼5.5V
s
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
CONDITION
Operating Current
Input Offset Voltage
Input Common Mode
Voltage Range
Maximum Output
Voltage Range
Lock Protect
Operating Voltage
Lock Detect Charge
Current
Lock Detect
Discharge Current
Clamp Voltage
Detect Voltage
Thermal Shutdown
Temperature
Feedback Resistance
FG H Leak Current
FG L Voltage
I
DD
V
IO
V
ICM
V
OM
Io= -350mA
V
LOP
I
CHG
I
DCHG
V
CL
V
ID
T
TSD
R
F
I
FG-LEAK
V
FG
-
-
-
-
-
-
-
4pin=0V, 3pin=5V
-
-
-
Io=+350mA
Device itself
MIN.
-
-15
0.4∼4.0
4.55
-
4.0
-
-
-
-
-
22.0
-
-
(V
DD
=5V, Ta=25°C)
TYP.
MAX.
UNIT
3.0
-
-
4.65
0.35
-
1.5
0.5
2.6
0.6
180
27.5
-
-
4.0
15
-
-
V
0.45
-
-
-
-
-
-
33.0
1.0
0.3
V
µA
µA
V
V
°C
kΩ
µA
V
mA
mV
V
4pin=5V, 3pin=0V, R3=10kΩ
-2-
Ver.2003-07-28
NJU7329A
s
TIMING CHART
IN+
IN-
OUTA
OUTB
Ct
FG
Ver.2003-07-28
-3-
NJU7329A
s
TYPICAL CHARACTERISTICS
VDD-IDD
IN-=VDD, IN+=0V, Ct=0V, VSS=0V
4.0
3.5
3.0
VDD-VOM(BTL)[AMPA=H]
Iout=350mA, IN-=0V, IN+=VDD/2, Ct=0V, VSS=0V
10.0
9.0
8.0
7.0
2.5
IDD[mA]
VOM[V]
6.0
5.0
4.0
3.0
2.0
1.5
1.0
2.0
0.5
0.0
0
1
2
3
4
5
6
7
8
1.0
0.0
0
1
2
3
4
5
6
7
8
VDD[V]
VDD-VOM(BTL)[AMPB=L]
Iout=350mA, IN-=0V, IN+=VDD/2, Ct=0V, VSS=0V
1.0
0.9
0.8
0.7
4.0
3.7
3.4
3.1
VDD[V]
VDD-VCL
IN-=VDD/2, IN+=0V, VSS=0V, Ct=L→H
VOM[V]
VCL{V]
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
1
2
3
4
5
6
7
8
2.8
2.5
2.2
1.9
1.6
1.3
1.0
2
2.5
3
3.5
4
4.5
5
5.5
6
VDD[V]
VDD-IDCHG
IN-=VDD, IN+=0V, VSS=0V
0.50
0.45
0.40
0.35
1.0
0.9
0.8
0.7
VDD[V]
VDD-VID
IN-=VDD, IN+=0V, VSS=0V, Ct=H→L
IDCHG[μA]
0.25
0.20
0.15
0.10
0.05
0.00
2
2.5
3
3.5
4
4.5
5
5.5
6
VID[V]
0.30
0.6
0.5
0.4
0.3
0.2
0.1
0.0
2
2.5
3
3.5
4
4.5
5
5.5
6
VDD[V]
VDD[V]
-4-
Ver.2003-07-28
NJU7329A
s
TYPICAL CHARACTERISTICS
VDD-ICHG
IN-=VDD, IN+=0V, VSS=0V
1.5
1.3
1.1
ICHG[μA]
0.9
0.7
0.5
0.3
2
2.5
3
3.5
4
4.5
5
5.5
6
VDD[V]
Iout-VOM(BTL)[AMPA=H]
VDD=5V, IN-=0V, IN+=VDD/2, Ct=0V, VSS=0V
5.00
4.95
4.90
4.85
VOM[V]
4.80
4.75
4.70
4.65
4.60
4.55
0
100
200
300
Iout[mA]
400
500
600
Iout-VOM(BTL)[AMPB=L]
VDD=5V, IN-=0V, IN+=VDD/2, Ct=0V, VSS=0V
0.50
0.45
0.40
0.35
VOM[V]
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
100
200
300
400
500
600
Iout[mA]
Ver.2003-07-28
-5-
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