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NJM3517 の電気的特性と機能

NJM3517のメーカーはNew Japan Radioです、この部品の機能は「STEPPER MOTOR CONTROLLER / DRIVER」です。


製品の詳細 ( Datasheet PDF )

部品番号 NJM3517
部品説明 STEPPER MOTOR CONTROLLER / DRIVER
メーカ New Japan Radio
ロゴ New Japan Radio ロゴ 




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NJM3517 Datasheet, NJM3517 PDF,ピン配置, 機能
NJM3517
STEPPER MOTOR CONTROLLER / DRIVER
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
NJM3517 is a stepper motor controller/driver, which requires
minimum of external components and drive currents up to 500mA.
The NJM3517 is suited for applications requiring least-possible RFI.
Operating in a bi-level drive mode can increase motor performance;
high voltage pulse is applied to the motor winding at the beginning
of a step, in order to give a rapid rise of current.
s FEATURES
• Internal complete driver and phase logic
NJM3517D2
NJM3517E2
• Continuous-output current 2 x 350mA
• Half- and full-step mode generation
• LS-TTL-compatible inputs
• Bi-level drive mode for high step rates
• Voltage-doubling drive possibilities
• Half-step position-indication output
• Minimal RFI
• Packages DIP16 / EMP16
s BLOCK DIAGRAM
NJM3517
RC Mono
F-F
VCC
POR
STEP
DIR
HSM
INH
OA
OB
Phase PA
Logic
PB
VSS
LA
LB
PB2
PB1
PA2
PA1
GND
Figure 1. Block diagram

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NJM3517 pdf, ピン配列
NJM3517
s FUNCTIONAL DESCRIPTION
The circuit, NJM3517, is a high performance motor driver, intended to drive a stepper motor in a unipolar, bi-level
way. Bi-level means that during the first time after a phase shift, the voltage across the motor is increased to a
second voltage supply, VSS, in order to obtain a more-rapid rise of current, see figure 25.
The current starts to rise toward a value which is many times greater than the rated winding current. This com-
pensates for the loss in drive current and loss of torque due to the back emf of the motor.
After a short time, tOn, set by the monostable, the bi-level output is switched off and the winding current flows from
the VMM supply, which is chosen for rated winding current. How long this time must be to give any increase in
performance is determined by V voltage and motor data, the L/R time-constant.
SS
In a low-voltage system, where high motor performance is needed, it is also possible to double the motor voltage
by adding a few external components, see figure 4.
The time the circuit applies the higher voltage to the motor is controlled by a monostable flip-flop and determined
by the timing components RT and CT.
The circuit can also drive a motor in traditional unipolar way.
An inhibit input (INH) is used to switch off the current completely.
s LOGIC INPUTS
All inputs are LS-TTL compatible. If any of the logic inputs are left open, the circuit will accept it as a HIGH level.
NJM3517 contains all phase logic necessary to control the motor in a proper way.
STEP — Stepping pulse
One step is generated for each negative edge of the STEP signal. In half-step mode, two pulses will be required to
move one full step. Notice the set up time, ts, of DIR and HSM signals. These signals must be latched during the
negative edge of STEP, see timing diagram, figure 6.
VSS
VMM
+ 5V
VCC
CMOS, TTL-LS
Input / Output-Device
STEP
CW / CCW
HALF / FULL STEP
NORMAL /INHIBIT
(Optional Sensor)
GND
GND (VCC)
RC 12
R9 R8 RT CT
STEP 7
DIR 6
HSM 10
INH 11
OA 9
OB 8
Mono
F-F
Phase PA
Logic
PB
++ +
C3 C4 C5
VCC
VSS
16 15
PQR
D3
NJM3517
D2
D1
13 LA
14 LB
1 PB2
2 PB1
5 PA2
4 PA1
3 GND
R11 R10
MOTOR
D3-D6
D3-D6 are
UF 4001 or
BYV 27
trr < 100 ns
GND (VMM,VSS)
VMM
+ 5V
VCC
CMOS, TTL-LS
Input / Output-Device
STEP
CW / CCW
HALF / FULL STEP
NORMAL /INHIBIT
(Optional Sensor)
GND
GND (VCC)
RC 12
R9 R8 RT CT
STEP 7
DIR 6
HSM 10
INH 11
OA 9
OB 8
Mono
F-F
Phase PA
Logic
PB
++
R1
C3 C4
VCC
VSS
16 15
PQR
NJM3517
D1
13 LA
14 LB
1 PB2
2 PB1
5 PA2
4 PA1
Q1
C1
Q3
R10
R2
Equal to
Phase A R12
1/2 MOTOR
R13
R4
Q5
Q6
R5
3 GND
GND (VMM,VSS)
Figure 3.
Typical
application
Figure 4.
Voltage
doubling with
external
transistors


3Pages


NJM3517 電子部品, 半導体
NJM3517
s ELECTRICAL CHARACTERISTICS
Electrical characteristics at Tj = +25°C, VCC = +5.0 V, VMM = +40 V, VSS = +40 V unless otherwise specified.
Parameter
Supply current
Phase outputs
Saturation voltage
Leakage current
Turn on, turn off
Second-level outputs
Saturation voltage
Leakage current
On time
Logic inputs
Voltage level, HIGH
Voltage level, LOW
Input current, LOW
Input current, HIGH
Logic outputs
Saturation voltage
Symbol
ICC
Conditions
INH = LOW
INH = HIGH
VPCE Sat
IPL
td
td
IP = 350 mA
VP = 0 V
+70°C
+125°C
VLCE Sat
ILL
tOn
IL = -350 mA
VL = 0 V
(note 4)
VIH
VIL
IIL VI = 0.4 V
IIH VI = 2.4 V
V
ØCE Sat
I = 1.6 mA
Ø
Min
-
-
-
-
-
-
-
-500
220
-
-
-400
-
-
Typ Max
45 60
12 -
- 0.85
- 500
-3
-6
- 2.0
--
260 300
2.0 -
- 0.8
--
- 20
- 0.4
Notes
1. All voltages are with respect to ground. Current are positive into, negative out of specified terminal.
2 Derates at 12,8 mW/°C above +25°C.
3. Derates at 10.4 mW/°C above +25°C.
4. RT = 47 k, CT = 10 nF.
Unit
mA
mA
V
µA
µs
µs
V
µA
µs
V
V
µA
µA
V

6 Page



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部品番号部品説明メーカ
NJM3517

STEPPER MOTOR CONTROLLER / DRIVER

New Japan Radio
New Japan Radio


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