NJU7325
Single-phase DC Brushless Motor Driver IC
GENERAL DESCRIPTION
The NJU7325 is a dual power amplifier designed for small
actuator applications. It incorporates MOS-FET transistor in
the output stage which can offer a low saturation output
voltage in high current operation. The NJU7325 is available
in small and thin surface mount packages MSOP8 (VSP8),
MSOP8 (TVSP8) and ESON8-V1, which provides
downsizing and thinning in motor applications.
PACKAGE OUTLINE
NJU7325KV1
(DFN8-V1(ESON8-V1))
NJU7325R
(MSOP8(VSP8))
FEATURES
•
Single Supply
•
Operating Voltage
•
Low Operating Current
•
Low Saturation Output Voltage
•
CMOS Technology
•
Package Outline
NJU7325RB1
(MSOP8(TVSP8))
V
DD
=2.4 to 5.5V
Vsat=±0.35V @Io=±250mA
MSOP8 (VSP8)*, MSOP8 (TVSP8)**, DFN8-V1(ESON8-V1)
*MEET JEDEC MO-187-DA, **MEET JEDEC MO-187-DA / THIN TYPE
BLOCK DIAGRAM
1
8
Ach
-
2
Bch
+ -
3
6
+
7
4
5
-1-
NJU7325
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Supply Voltage
V
DD
Input Voltage
Vid
Operating Temperature
Topr
Storage Temperature
Tstg
Power Dissipation
P
D
(MSOP8(VSP8/TVSP8))
Power Dissipation
P
D
(DFN8-V1(ESON8-V1))
(Ta=25°C)
RATINGS
+7
-0.3 to V
DD
+0.3
-40 to +85
-50 to +150
400
UNIT
V
V
°C
°C
mW
Device itself
NOTE
-
-
-
-
520
mW (*1)Mounted on 2-Layers Board
1100
mW (*2)Mounted on 4-Layers Board
(*1): Mounted on glass epoxy board based on EIA/JEDEC. (101.5×114.5×1.6mm: 2-Layers)
(*2): Mounted on glass epoxy board based on EIA/JEDEC.
(101.5×114.5×1.6mm: 4-Layers Internal foil area: 99.5×99.5mm)
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Operating Voltage Range
V
DD
Quiescent Current
I
DD
(V
DD
=5V, V
SS
=0V, f=1kHz, Ta=25°C)
MIN.
TYP.
MAX. UNIT
2.4
5.0
5.5
V
-
3.0
4.0
mA
TEST CONDITION
No Load Condition,
Voltage Follower, Vo=2.5V,
per 1ch
Input Offset Voltage
V
IO
-15
-
+15
mV
Input Offset Current
I
IO
-
10
-
pA
Input Bias Current
I
IB
-
10
-
pA
12
Input Impedance
R
IN
-
10
-
Ω
Input Common Mode
V
ICM
0.4 to 4.0
-
-
V
Voltage Range
Maximum Output Voltage
Io= +250mA
4.55
4.65
-
V
V
OM
Range
Io= -250mA
-
0.35
0.45
V
Large Signal Voltage Gain
AV
55
-
-
dB
Common Mode Rejection
53
-
-
dB
CMRR
V
ICM
=0.4 to 4.0V
Ratio
Supply Voltage Rejection
55
-
-
dB
PSRR
V
DD
=4.5 to 5.5V
Ratio
Unity Gain Bandwidth
F
T
C
L
=10pF, Open Loop
-
1.5
-
MHz
-
1
-
V/us
Slew Rate
SR
Voltage Follower, R
L
=16.5Ω
(*3): Oscillation margin of NJU7325 will be narrow if the application features light load current and low gain.
(ex. Voltage Follower).
Maintain the value of stray capacitance at the output terminal with less than 100pF to prevent the oscillation.
(*4): Place decoupling-capacitor near Vss and V
DD
pins.
-2-
NJU7325
PIN CONFIGURATION
•
MSOP8 (VSP8/TVSP8)
8
7
6
5
1:
2:
3:
4:
5:
6:
7:
8:
A OUTPUT
A - INPUT
A+ INPUT
V
SS
B+ INPUT
B - INPUT
B OUTPUT
V
DD
1
2
3
4
Surface
•
DFN8-V1(ESON8-V1)
8
7
6
5
1
2
3
4
1:
2:
3:
4:
5:
6:
7:
8:
1
2
3
4
8
7
6
5
Surface
Backside
A OUTPUT
A - INPUT
A+ INPUT
V
SS
B+ INPUT
B - INPUT
B OUTPUT
V
DD
(*5): The PAD in the center part on the back is connected with the internal V
DD
,
therefore it is open or connects to V
DD
.
-3-
NJU7325
APPLICATION CIRCUIT
M
V
DD
1
8
Ach
- +
2
Bch
+ -
3
6
7
4
V
SS
5
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook 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.
-4-
Mouser Electronics
Authorized Distributor
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NJU7325R-TE1 NJU7325RB1-TE2
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