MOTOR DRIVER. NJM13775 Datasheet

NJM13775 DRIVER. Datasheet pdf. Equivalent

NJM13775 Datasheet
Recommendation NJM13775 Datasheet
Part NJM13775
Description DUAL STEPPER MOTOR DRIVER
Feature NJM13775; NJM13775 DUAL STEPPER MOTOR DRIVER „ GENERAL DESCRIPTION The NJM13775 is a switch-mode (chopper), .
Manufacture New Japan Radio
Datasheet
Download NJM13775 Datasheet




New Japan Radio NJM13775
NJM13775
DUAL STEPPER MOTOR DRIVER
„ GENERAL DESCRIPTION
The NJM13775 is a switch-mode (chopper), constant
current driver with two channels: one for each winding of a
two-phase stepper motor. NJM13775 is equipped with a
Disable input to simplify half-stepping operation. The
NJM13775 contains a clock oscillator, a set of comparators
and flip-flops implementing the switching control, and two
output H-bridges, including recirculation diodes. Voltage
supply requirements are +5 V for logic and +10 to +45 V for
the motor. Maximum output current is 500mA per channel.
NJM13775 achieved downsizing a motor control board by
adopting small LQFP package, making this IC ideal for a
multiple motor control board.
„ PACKAGE OUTLINE
NJM13775FR3
„ FEATURES
Dual chopper driver
350mA continuous output current per channel
Digital filter on chip eliminates external filtering components
Packages
LQFP48
„ BLOCK DIAGRAM
Figure 1. Block diagram
Figure 1. Block diagram
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New Japan Radio NJM13775
NJM13775
„ PIN CONFIGURATION
GND
NC
VMM1
NC
GND
GND
GND
GND
GND
NC
VR1
C1
37
38
39
40
41
42
43
44
45
46
47
48
24 GND
23 NC
22 VMM2
21 NC
20 GND
19 GND
18 GND
17 GND
16 GND
15 NC
14 VR2
13 C2
Figure 2. Pin configurations
„ PIN DESCRIPTION
PIN #
Symbol
32
34
36
39
16,17,18,19,20,24,37,
41,42,43,44,45
MB1
E1
MA1
VMM1
GND
47 VR1
48 C1
3 Phase1
4 Dis1
5 RC
7 VCC
9 Dis2
11 Phase2
13 C2
14
22
25
27
29
1,2,6,8,10,12,15,21,23,
26,28,30,31,33,35,38,
40,46
VR2
VMM2
MA2
E2
MB2
NC
Description
Motor output B, channel 1. Motor current flows from MA1 to MB1 when Phase1 is HIGH.
Common emitter, channel 1. This pin connects to a sensing resistor RS to ground.
Motor output A, channel 1. Motor current flows from MA1 to MB1 when Phase1 is HIGH.
Motor supply voltage, channel 1, +10 to +40 V. VMM1 and VMM2 should be connected together.
Ground and negative supply. Note: these pins are used thermally for heat-sinking.
Make sure that all ground pins are soldered onto a suitably large copper ground plane for efficient heat
sinking.
Reference voltage, channel 1. Controls the comparator threshold voltage and hence the output current.
Comparator input channel 1. This input senses the instantaneous voltage across the sensing resistor,
filtered by the internal digital filter or an optional external RC network.
Controls the direction of motor current at outputs MA1 and MB1. Motor current flows from MA1 to MB1
when Phase1 is HIGH.
Disable input for channel 1. When HIGH, all four output transistors are turned off, which results in a
rapidly decreasing output current to zero.
Clock oscillator RC pin. Connect a 12 kohm resistor to VCC and a 4 700 pF capacitor to ground to obtain
the nominal switching frequency of 23.0 kHz and a digital filter blanking time of 1.0µs.
Logic voltage supply, nominally +5 V.
Disable input for channel 2. When HIGH, all four output transistors are turned off, which results in a
rapidly decreasing output current to zero.
Controls the direction of motor current at outputs MA2 and MB2. Motor current flows from MA2 to MB2
when Phase2 is HIGH.
Comparator input channel 2. This input senses the instantaneous voltage across the sensing resistor,
filtered by the internal digital filter or an optional external RC network.
Reference voltage, channel 2. Controls the comparator threshold voltage and hence the output current.
Motor supply voltage, channel 2, +10 to +40 V. VMM1 and VMM2 should be connected together.
Motor output A, channel 2. Motor current flows from MA2 to MB2 when Phase2 is HIGH.
Common emitter, channel 2. This pin connects to a sensing resistor RS to ground.
Motor output B, channel 2. Motor current flows from MA2 to MB2 when Phase2 is HIGH.
No connection.
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New Japan Radio NJM13775
„ ABSOLUTE MAXIMUM RATINGS
Parameter
Voltage
Logic voltage supply
Motor voltage supply
Logic Input voltage
Analog Input voltage
Current
Motor output current
Logic input current
Analog input current
Temperature
Operating ambient temperature
Operating junction temperature
Storage temperature
Power Dissipation
114.3mm x 76.2mm x 1.6mm, 2-phase, FR-4
mounted on EIA/JEDC specified board
114.3mm x 76.2mm x 1.6mm, 4-phase, FR-4
mounted on EIA/JEDC specified board
„ RECOMMENDED OPERATING Range
Parameter
Logic supply voltage
Motor supply voltage
Output emitter voltage
Motor output current
Rise and fall time logic inputs
Oscillator timing resistor
NJM13775
PIN No.
Symbol Min
7
22, 39
3, 4, 9, 11
13, 14, 47, 48
25, 29, 32, 36
3, 4, 9, 11
13, 14, 47, 48
VCC 0
VMM
0
VI -0.3
VA -0.3
IM -500
II -10
IA -10
Ta -40
Tj -40
Tstg -55
(TA=+25°C)
Max Unit
7
45
6
VCC
+500
-
-
V
V
V
V
mA
mA
mA
+85
+150
+150
°C
°C
°C
PD - 1.8 W
PD - 3.0 W
(Ta=+25°C)
Symbol Min Typ Max Unit
VCC 4.75 5 5.25 V
VMM 10 - 40 V
VE -
- 1.0 V
IM -350
-
+350
mA
tr, tf - - 2 µs
RT 2 12 20 k
Figure 3. Definition of symbols
Figure 4. Definition of terms
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