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NJM2673 PDF даташит

Спецификация NJM2673 изготовлена ​​​​«JRC» и имеет функцию, называемую «Stepper Motor / EMP24-E3».

Детали детали

Номер произв NJM2673
Описание Stepper Motor / EMP24-E3
Производители JRC
логотип JRC логотип 

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NJM2673 Даташит, Описание, Даташиты
www.DataSheet4U.com
STEPPER MOTOR DRIVER
NJM2673
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
The NJM2673 is a stepper motor driver, which consists of a
LS-TTL compartible logic input stage, off time control circuits
and a pair of highpower H-bridges and protection diodes.
The output current is up to 1000mA.
The NJM2673 with small number of external components
conforms a complete control and drive unit for stepper motor
systems.
NJM2673E3
.
s FEATURES
Switched mode bipolar constant current drive
Wide voltage range 4 to 45V
Wide range of current control 5 to 1000mA
Half- step and full-step operation
Thermal overload protection
Package EMP24
s PIN CONNECTION
VCC
T1
VR1
PHASE1
I11
GND
1
2
3
4
5
6
GND 7
I01 8
MB1 9
C1 10
E2 11
VMM 12
NJM
2673E3
24 T2
23 VR2
22 PHASE2
21 I12
20 I02
19 GND
18 GND
1C72 MB2
16 C2
15 E2
14 MA2
13 MA1
-1-









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NJM2673 Даташит, Описание, Даташиты
NJM2673
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s BLOCK DIAGRAM
Vcc
C1
Phhaassee11
I01
I11
VR1
Current
Select
T1
Phhaassee12
I02
I12
VR2
Current
Select
E1
Logic
Logic
TSD
GND
C2
T2
E2
MA1
MB1
VMM1
VMM2
MB2
MA2
-2-









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NJM2673 Даташит, Описание, Даташиты
NJM2673
www.DataSheet4U.com
s PIN DESCRIPTION
EMP Symbol
1 VCC
2 T1
3 VR1
4 Phase1
5 I11
6,7,18,19 GND
8 I01
9 MB1
10 C1
11 E1
12 VMM
13 MA1
14 MA2
15 E2
16 C2
17 MB2
20 I02
21 I12
22 Phase2
23 VR2
24 T2
Description
Logic voltage supply normally +5V.
Clock Oscillator, channel 1. Timing pin connect a 56kresistance and a 820pF in
parallel between T and ground.
Reference voltage, channel 1. Controls the threshold voltage for the comparator and
hence the output current.
Controls the direction of the motor current of MA1 and MB1 outputs. Motor current flows
from MA1 to MB1 when Phase1 is HIGH.
Logic input, channel 1. It controls, together with the I01 input, the current level in the
output stage.
Ground and negative supply. These pins are used for heat sinking. Make sure that all
ground pins are soldered onto a suitable large copper ground plane for efficient heat
sinking.
Logic input, channel 1. It controls, together with the I11 input, the current level in the
output stage.
Motor output B, channel 2. Motor current flows from MA1 to MB1 when Phase1 is high.
Comparator input, channel 1. This input senses the instantaneous voltage across the
sensing resistor, filtered through a RC network.
Common emitter, channel 1. Connect the Sense resistor between this pin and
ground.
Motor supply voltage, 4 to 40V.
Motor output A, channel 1. Motor current flows from MA1 to MB1 when Phase1 is high.
Motor output A, channel 2. Motor current flows from MA2 to MB2 when Phase2 is high.
Common emitter, channel 2. Connect the Sense resistor between this pin and
ground.
Comparator input, channel 2. This input senses the instantaneous voltage across the
sensing resistor, filtered through a RC network.
Motor output B, channel 2. Motor current flows from MA2 to MB2 when Phase2 is high.
Logic input, channel 2. It controls, together with the I12 input, the current level in the
output stage.
Logic input, channel 2. It controls, together with the I02 input, the current level in the
output stage.
Controls the direction of the motor current of MA2 and MB2 outputs. Motor current flows
from MA2 to MB2 when Phase2 is HIGH.
Reference voltage, channel 2. Controls the threshold voltage for the comparator and
hence the output current.
Clock Oscillator, channel 2. Timing pin connect a 56kresistance and a 820pF in
parallel between T and ground.
-3-










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