NJM2641
Preliminary
Two-phase Unipolar DC Brushless Motor Pre-Driver IC
s
GENERAL DESCRIPTION
s
PACKAGE OUTLINE
The NJM2641 is a 2-phase DC brushless motor
pre-driver IC.
It incorporates Lock Detect and Auto Protection Circuit.
The turn ON / turn OFF ratio at Auto Protection Release
was set in 1:10 easy-to-use.
Moreover, the pin is compatible with 48V pre-driver
NJM2640.
NJM2641M
NJM2641E
s
FEATURES
•
Operating Voltage V
DD
=4 to 14V
•
Absolute Maximum Voltage 15V
•
Internal Lock Detect / Auto Protection Release Circuit
•
Lock Alarm Output Terminal
•
Package Outline
DMP8 / EMP8 / TVSP8
s
BLOCK DIAGLAM
s
PIN FUNCTION
NJM2641RB1
1
2
3
4
1: Vcc
2: H1
3: LA
4: H2
5: GND
6: Ct
7: OUT1
8: OUT2
8
7
6
5
-1-
NJM2641
Preliminary
s
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Hall Input Voltage Range
Output Current (Peak)
Lock Alarm Output Voltage
Hall Input Differential Voltage
Lock Alarm Output Current
Operating Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Power Dissipation
(Ta=25°C)
UNIT
NOTE
V
V
mA
V
V
mA
°C
°C
°C
mW
-
-
-
-
-
-
-
-
-
Device
itself
SYMBOL
V
cc
V
IH
I
O UT
V
OLA
V
IHD
I
OLA
Topr
Toj
Tstg
P
D
RATINGS
15
-0.3
∼
V
CC
70
15
2
20
-40
∼
85
-40
∼
150
-55
∼
150
300(DMP8) /
375(EMP8) /
400(TVSP8)
s
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
Hall Input Voltage Common Mode Voltage
Junction Temperature
V
cc
V
ICM
Tj
RATINGS
4
∼
14
1.5
∼
Vcc-2
-40
∼
125
(Ta=25°C)
UNIT (unit)
NOTE
V
V
°C
-
-
-
-2-
NJM2641
Preliminary
s
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Operating Current
Hall Input Hysterisis
Range
Hall Amplifier Input Bias
Current
Output Voltage
Output Leak Current
Lock Alarm Output
Voltage
Lock Alarm Leak
Current
Ct Charge Current
Ct Discharge Current
Charge / Discharge
Current Ratio
Ct H-level Cense
Voltage
Ct L-level Cense
Voltage
Auto Protection
Release ON Time
Auto Protection
Release ON Time
I
CC
V
HYS
I
B
V
OUT
I
LEAK
V
LA
I
LA-LEAK
I
CHG
I
DCHG
I
CHG
/ I
DCHG
V
CtH
V
CtL
T
ON
T
OFF
CONDITION
V
CC
=12V
V
CC
=5V
-
-
I
OUT
=20mA
V
CC
=14V
Lock Alarm ON,I
LA
=5mA
V
LA
=14V
V
Ct
=1.5V
V
Ct
=1.5V
-
-
-
Ct=0.47µF
Ct=0.47µF
MIN.
-
-
8
-
-
-
-
-
-
-
-
2.5
0.6
-
-
(V
DD
=12V, Ta=25°C)
TYP.
MAX.
UNIT
3.0
2.8
20
1.0
V
CC
-1.5
1
-
1
4.0
0.4
10
2.8
0.7
0.25
2.5
4.0
3.75
32
-
-
10
0.5
5
-
-
-
3.1
0.8
-
-
V
V
s
s
mV
µA
V
µA
V
µA
µA
µA
mA
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-
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