NJRC NJM2641

NJM2641
Preliminary
Two-phase Unipolar DC Brushless Motor Pre-Driver IC
■ GENERAL DESCRIPTION
■ 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
NJM2641RB1
■ FEATURES
• Operating Voltage VDD=4 to 14V
• Absolute Maximum Voltage 15V
• Internal Lock Detect / Auto Protection Release Circuit
• Lock Alarm Output Terminal
• Package Outline
DMP8 / EMP8 / TVSP8
■ BLOCK DIAGLAM
■ PIN FUNCTION
1
8
2
7
3
6
4
5
1: Vcc
2: H1
3: LA
4: H2
5: GND
6: Ct
7: OUT1
8: OUT2
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NJM2641
Preliminary
■ 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
SYMBOL
RATINGS
Vcc
VIH
IO UT
VOLA
VIHD
IOLA
Topr
Toj
Tstg
15
-0.3 ∼ VCC
70
15
2
20
-40 ∼ 85
-40 ∼ 150
-55 ∼ 150
300(DMP8) /
375(EMP8) /
400(TVSP8)
PD
■ RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
Hall Input Voltage Common Mode Voltage
Junction Temperature
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Vcc
VICM
Tj
RATINGS
4 ∼ 14
1.5 ∼ Vcc-2
-40 ∼ 125
(Ta=25°C)
UNIT
NOTE
V
V
mA
V
V
mA
°C
°C
°C
-
mW
Device
itself
(Ta=25°C)
UNIT (unit)
NOTE
V
V
°C
-
NJM2641
Preliminary
■ ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
(VDD =12V, Ta=25°C)
TYP.
MAX.
UNIT
CONDITION
MIN.
VCC=12V
-
3.0
4.0
VCC=5V
-
2.8
3.75
VHYS
-
8
20
32
mV
IB
-
-
1.0
-
µA
Output Voltage
VOUT
IOUT=20mA
-
VCC-1.5
-
V
Output Leak Current
ILEAK
VCC=14V
-
1
10
µA
Operating Current
Hall Input Hysterisis
Range
Hall Amplifier Input Bias
Current
ICC
mA
Lock Alarm Output
Voltage
Lock Alarm Leak
Current
VLA
Lock Alarm ON,ILA=5mA
-
-
0.5
V
ILA-LEAK
VLA=14V
-
1
5
µA
Ct Charge Current
ICHG
VCt=1.5V
-
4.0
-
µA
Ct Discharge Current
IDCHG
VCt=1.5V
-
0.4
-
µA
ICHG / IDCHG
-
-
10
-
VCtH
-
2.5
2.8
3.1
V
VCtL
-
0.6
0.7
0.8
V
TON
Ct=0.47µF
-
0.25
-
s
TOFF
Ct=0.47µF
-
2.5
-
s
Charge / Discharge
Current Ratio
Ct H-level Cense
Voltage
Ct L-level Cense
Voltage
Auto Protection
Release ON Time
Auto Protection
Release ON Time
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.
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