NJM2625 PDF даташит
Спецификация NJM2625 изготовлена «ETC» и имеет функцию, называемую «PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC». |
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Детали детали
Номер произв | NJM2625 |
Описание | PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC |
Производители | ETC |
логотип |
8 Pages
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NJM2625
PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC
♦GENERAL DESCRIPTION
The NJM2625 is a 3-phase DC brush-less motor
control IC with PWM control.
It incorporates hall amplifiers, PWM control circuits,
totem-pole pre drivers for external power MOS
transistors, current limit and frequency generator
circuit.
The NJM2625 easily implements speed control and
rotation direction control for DC motor application.
♦PACKAGE OUTLINE
NJM2625D
♦FEATURES
•Operating Voltage
•Pre-Driver Circuit
•Current Limit Sense Voltage
•Internal Oscillator
•Forward or Reverse Direction
•FG Signal Output
•Internal Soft Start
•Internal ON/OFF Circuit
•Bipolar Technology
•Package Outline
(V+=8V to 18V)
(Iout=+50mA/-150mA MAX.)
(Current limit=0.5V±10%)
(Frequency control for external capacitor)
(Output frequency to hall frequency)
(External capacitor to Verr pin.
(No-output is Verr pin to GND.)
DIP20, DMP20
NJM2625M
♦PIN CONFIGRATION
1
2
3
4
5
6
7
8
9
10
NJM2625D
NJM2625M
20
19
18
17
16
15
14
13
12
11
PIN FUNCTION
1.FG
11.GND
2.Vref
12.ILIMIT
3.H1+
13.WL
4.H1-
14.VL
5.H2+
15.UL
6.H2-
16.WH
7.H3+
17.VH
8.H3-
9.Verr
18.UH
19.V+
10.OSC
20.F/R
Ver 1.0 - 1 -
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NJM2625
♦BLOCK DIAGRAM
20.F/R
3.H1+
4.H1-
5.H2+
6.H2-
7.H3+
8.H3-
19.V+
2.Vref
Rotor
Position
Decode
r
V+
Vref UVLO
10.OSC
9.Verr
Saw
Oscillator
PWM
COMP
Logic
1.FG
11.GND
FG
V+
16.WH
17.VH
18.UH
13.WL
14.VL
15.UL
12.ILIMIT
-2-
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NJM2625
♦ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
Maximum Supply Voltage
Power Dissipation
SYMBOL
V+
PD
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
RATINGS
20
(DIP20)
700
(DMP20)
350
-40 ∼ +85
-50 ∼ +150
UNIT
V
mW
°C
°C
♦ELECTRICAL CHARACTERISTICS (V+=12V, Ct=1000pF, Cref=1µF, Ta=25°C)
Total Device
PARAMETER
SYMBOL TEST CONDITIONS MIN.
Supply Voltage
V+
8.0
Under Voltage Sense Voltage
(Under Voltage Lock Out)
Hysteresis Voltage
(Under Voltage Lock Out)
Supply Current
UVLO
∆UVLO
Icc
Output Enable
V+ Increasing
RL=∞
PWM Duty=50%
7.00
0.4
-
TYP.
-
7.25
0.5
15.0
MAX.
18.0
7.50
UNIT
V
V
0.6 V
22.0 mA
Hall Sensor Section
PARAMETER
Hysteresis Voltage
Input Common mode
Voltage range
Input Bias Current
SYMBOL
Vhys
Vicm
TEST CONDITIONS
RL=470Ω
RL=470Ω
IB
MIN.
-
1.5
-
TYP.
30
-
-
MAX.
-
10.5
UNIT
mV
V
600 nA
Output Section
PARAMETER
Output Voltage 1
Output Voltage 2
SYMBOL
Voh
Vol
TEST CONDITIONS
Isource=50mA
Isink=150mA
MIN.
10
-
TYP.
10.3
1.5
MAX.
-
2.0
UNIT
V
V
Over Current Sense Section
PARAMETER
Sense Voltage
Input Voltage Range
Input Bias Current
SYMBOL
Vth
Vip
IIB
TEST CONDITIONS
MIN.
0.45
-
-
TYP.
0.50
-
-0.9
MAX.
0.55
3.0
-5.0
UNIT
V
V
µA
Oscillator Section
PARAMETER
Oscillation Frequency
Oscillate Fluctuations
(Line Regulation)
PWM0% Sense Voltage
PWM100% Sense Voltage
Saw Wave Peak Voltage
Saw Wave Bottom Voltage
SYMBOL TEST CONDITIONS
fosc
? fosc/? V V+=8V to 18V
PWM0
PWM1
Vpfosc
Vbfosc
PWM DUTY=0%
PWM DUTY=100%
MIN.
20
-
-
5.40
4.75
0.50
TYP.
25
0.01
-
-
5.00
0.65
MAX.
30
5.00
0.35
-
5.25
0.80
UNIT
kHz
%
V
V
V
V
-3-
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