NJM2644 PDF даташит
Спецификация NJM2644 изготовлена «JRC» и имеет функцию, называемую «FAN Motor / DMP8 / TVSP8». |
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Детали детали
Номер произв | NJM2644 |
Описание | FAN Motor / DMP8 / TVSP8 |
Производители | JRC |
логотип |
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NJM2644
Two-phase Unipolar DC Brushless Motor Pre-Driver IC
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
The NJM2644 is a 2-phase DC brushless motor
pre-driver IC.
It incorporates Lock Detect and Auto Protection circuit for safety
operation. Especially, 1:10 ON/OFF duty ratio while motor is locked
reduces heat generation in motor windings.
Moreover, the pin is compatible with 12V LA output
two-phase pre-driver NJM2641.
NJM2644M NJM2644RB1
It is suitablefor 12Vfanmotor applications.
s FEATURES
• Operating Voltage VDD=4 to 14V
• Absolute Maximum Voltage 15V
• Internal Lock Detect / Auto Protection Release Circuit
• FG Output Terminal
• Package Outline DMP8 / TVSP8
s BLOCK DIAGLAM
s PIN FUNCTION
1
2
3
4
8
7
6
5
1: Vcc
2: H1
3: FG
4: H2
FG 5: GND
6: Ct
7: OUT1
8: OUT2
-1-
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NJM2644
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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
SYMBOL
Vcc
VIH
IO UT
VOLA
VIHD
IOLA
Topr
Toj
Tstg
PD
RATINGS
15
-0.3 ∼ VCC
70
15
2
10
-40 ∼ 85
-40 ∼ 150
-55 ∼ 150
375(DMP8) /
400(TVSP8)
(Ta=25°C)
UNIT
NOTE
V-
V-
mA -
V-
V-
mA -
°C -
°C -
°C -
mW
Device
itself
s RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
Hall Input Voltage Common Mode Voltage
Junction Temperature
Vcc
VICM
Tj
RATINGS
4 ∼ 14
1.5 ∼ Vcc-2
-20 ∼ 125
(Ta=25°C)
UNIT (unit)
NOTE
V-
V-
°C -
-2-
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s ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Operating Current
Icc
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 OFF Time
VHYS
IB
Vout
Ileak
VLA
ILAleak
Ic
Idc
Ic/Idc
Vch
Vcl
Ton
Toff
CONDITION
VCC=12V
VCC=5V
-
-
IOUT=20mA
VCC=14V
Lock Alarm ON,ILA=5mA
VLA=14V
VCt=1.5V
VCt=1.5V
-
-
-
Ct=0.47µF
Ct=0.47µF
NJM2644
MIN.
-
-
8
-
-
-
-
-
-
-
-
2.5
0.6
-
-
(VDD =12V, Ta=25°C)
TYP. MAX. UNIT
3.4 4.4
mA
2.8 3.75
20 32 mV
1.0 - µA
VCC-1.5
1
-
-
10
0.5
V
µA
V
1 5 µA
4.0 5.5 µA
0.40 0.65 µA
10 -
2.8 3.1 V
0.7 0.8 V
0.25 - s
2.5 - s
-3-
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Номер в каталоге | Описание | Производители |
NJM2640 | FAN Motor / EMP8 | JRC |
NJM2641 | FAN Motor / DMP8 / EMP8 / TVSP8 | JRC |
NJM2642 | FAN Motor / SSOP16 | JRC |
NJM2643 | FAN Motor | JRC |
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DataSheet26.com | 2020 | Контакты | Поиск |