NJU7365
Single-phase DC Brushless Motor Driver IC
GENERAL DESCRIPTION
The NJU7365 is a single phase motor driver IC.
It features a MOS FET motor driver, direct PWM
input, FG output and thermal shutdown circuit.
The driver is capable of 1000mA maximum output
current and continuous current of 350mA.
NJU7365RB1
PACKAGE OUTLINE
FEATURES
•
Supply Voltage
•
Low Quiescent Current
•
Maximum Output Voltage
•
Direct PWM Input
•
Lock Detect
•
FG Output
•
Thermal Shutdown Circuit
•
CMOS Technology
•
Package Outline
V
DD
=2.0 to 5.5V
I
DD
=1mA typ.
V
OH
=4.7V typ.@ Io=+350mA, V
OL
=0.2V typ.@ Io=-350mA
TVSP8
BLOCK DIAGLAM
PIN FUNCTION
OUTB
1
8
GND
-
+
VDD
2
PWM
TSD
LockDet
7
OUTA
PIN No.
1
2
3
4
5
6
7
8
PIN NAME
OUTB
VDD
IN+
IN-
FG
PWM
OUTA
GND
+
IN+
3
-
+
6
PWM
IN-
4
-
5
FG
-1-
NJU7365
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Supply Voltage
V
DD
Input Voltage
V
ID
PWM Input Voltage
V
PWM
Output Current (Peak)
I
OPEAK
FG Output Current
I
FG
FG Output Voltage
V
FG
Power Dissipation
Operating Temperature
Junction Temperature
Storage Temperature
P
D
Topr
Tjmax
Tstg
RATINGS
+7
-0.3 to V
DD
-0.3 to V
DD
1000
10
+7.0
Device itself
(*1)Mounted on 2Layer Board
-40 to +85
150
-50 to +150
(Ta=25°C)
UNIT
V
V
V
mA
mA
V
400
510
mW
°C
°C
°C
(*1): Mounted on glass epoxy board based on EIA/JEDEC. (76.2
×
114.3
×
1.6mm: 2-Layers FR-4)
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
V
DD
(Ta=25°C)
MAX. UNIT
5.5
V
TEST CONDITION
-
MIN.
2.0
TYP.
5.0
-2-
NJU7365
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
GENERAL
Quiescent Current
I
DD
Thermal Shutdown Operating
T
TSD
Temperature
Thermal Shutdown Hysteresis
T
HYS
HALL AMP BLOCK
Input Offset Voltage
V
IO
Common Mode
V
ICM
Input Voltage Range
Close-loop Gain
A
V
OUTPUT BLOCK
V
OH
Output Voltage
V
OL
FGL Output Voltage
V
FG
FGH Leak Current
I
FG-LEAK
PWM INPUT BLOCK
PWM Input Frequency
f
PWM
Pullup resistance
R
PWM
Input H Level Voltage1
V
IHP1
Input H Level Voltage2
V
IHP2
Input L Level Voltage1
V
ILP1
Input L Level Voltage2
V
ILP2
LOCK DETECT BLOCK
Lock Detect ON Time
t
ON
Lock Detect OFF Time
t
OFF
Lock Detect Ratio
t
RATIO
TEST CONDITION
IN+=3.9V, IN-=0.4V
-
-
-
-
-
I
O
= +350mA
I
O
=-350mA
I
FG
=5mA
V
FG
=5V
-
-
-
V
DD
=2V
-
V
DD
=2V
-
-
-
MIN.
-
-
-
-10
0.4
-
4.6
-
-
-
2
-
3.0
1.4
0
0
-
-
-
(V
DD
=5V, Ta=25°C)
TYP.
MAX.
UNIT
1.1
170
20
-
-
46.4
4.7
0.2
-
-
-
200
-
-
-
-
0.66
6.6
1:10
1.8
-
-
10
3.9
-
-
0.3
0.2
1.0
50
-
-
-
1.5
0.5
-
-
-
mA
°C
°C
mV
V
dB
V
V
V
uA
kHz
kΩ
V
V
V
V
s
s
-
-3-
NJU7365
TRUTH TABLE
No.
IN+
IN -
PWM
TSD
LD
1
H
L
H
OFF
OFF
2
L
H
H
OFF
OFF
3
H
L
L
OFF
OFF
4
L
H
L
OFF
OFF
5
H
L
H
ON
OFF
6
L
H
H
ON
OFF
7
H
L
L
ON
OFF
8
L
H
L
ON
OFF
9
H
L
H
OFF
ON
10
L
H
H
OFF
ON
11
H
L
L
OFF
ON
12
L
H
L
OFF
ON
13
H
L
H
ON
ON
14
L
H
H
ON
ON
15
H
L
L
ON
ON
16
L
H
L
ON
ON
Z : High Impedance
*FG output turns to “L” when PWM “L” state is within fixed time(90ms typ.).
TIMING CHART at PWM
IN+
IN-
PWM
OUTA
OUTB
FG
OUTA
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
OUTB
L
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
FG
L
Z
L
Z
L
Z
L
Z
Z
Z
Z
Z
Z
Z
Z
Z
TIMING CHART at LOCK DETECT
Motor locked
IN+
IN-
OUTA
OUTB
FG
Toff
Ton
Toff
Motor released
Motor lock protection
PWM
90ms(typ.)
enable
disable
enable
Lock protect
enable (internal)
-4-
NJU7365
TYPICAL APPLICATION CIRCUIT
M
D1
VDD
C1
OUTB
VDD
R2
Hall
element
IN+
IN-
VSS
OUT
PWM
FG
Motor
R1
POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJU7365RB1 P
D
vs. Ta
(Topr=-40 to +85°C,Tj=150°C)
800
Power Dissipation P
D
(mW)
700
Mounted on 2Layer Board(FR4 114.3×76.2×1.6mm)
600
500
400
300
200
100
0
-50
-25
0
25
50
75
100
Device itself
Ambient Temperature Ta(°C)
-5-
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