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Спецификация NJW4351 изготовлена «NJR» и имеет функцию, называемую «Unipolar Stepper Motor Driver». |
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Детали детали
Номер произв | NJW4351 |
Описание | Unipolar Stepper Motor Driver |
Производители | NJR |
логотип |
18 Pages
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Unipolar Stepper Motor Driver
GENERAL DESCRIPTION
The NJW4351 is a high efficiency DMOS unipolar stepper
motor driver IC. Compared to previous devices, it is more suitable
for low voltage operation, capable of handling 5.0V, 3.3V and the
like logic circuits. Drive Stage consists of DMOS which produces
high efficiency and low heat generation motor drive circuit.
The motor can be controlled by the STEP and DIR system.
Further more, to improve controllability of system, MO, ENABLE,
RESET and PD function are included, various applications are
possible.
FEATURES
• Supply Voltage
VDD=2.7 to 5.5V
VMM= to 55V
• Output Current
Io=1.5A peak at VDD=5V
• Low Quiescent Current IDD=500µA typ.
• STEP&DIR Input Operation (Internal Translator)
• HALF/FULL Mode Generation
• TTL compatible Input With Schmitt-Comparator
• ENABLE Function
• RESET Function
• MO (Motor Origin Monitor) -Position-indication Output
• PD (Standby) Function
• Under Voltage Lock Out
• Thermal Shutdown Circuit
• Alarm Output Function (As the protection circuit operates)
• BCD Technology
• Package Outline
SSOP20-C3, DIP16
BLOCK DIAGRAM
HSM
STEP
DIR
RESET
NJW4351
VDD
POWER ON
RESET
TRANSLATOR
GATE
DRIVE
PACKAGE OUTLINE
NJW4351VC3
NJW4351D
OUT2B
OUT2A
OUT1B
OUT1A
ENABLE
PD
MO
ALARM
GND
Bias Circuit
UNDER VOLTAGE
LOCK OUT
THERMAL SHUT
DOWN
SENSE1
SENSE2
‘Ver.2010-03-26
-1-
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PIN CONNECTION
PD 1
VDD 2
HSM 3
STEP 4
DIR 5
RESET 6
ENABLE 7
MO 8
ALARM 9
GND 10
20 N.C.
19 N.C.
18 OUT1A
17 SENSE1
16 OUT1B
15 OUT2B
14 SENSE2
13 OUT2A
12 N.C.
11 N.C.
SSOP20-C3
VDD 1
HSM 2
STEP 3
DIR 4
RESET 5
ENABLE 6
MO 7
ALARM 8
DIP16
16 PD
15 OUT1A
14 SENSE1
13 OUT1B
12 OUT2B
11 SENSE2
10 OUT2A
9 GND
PIN FUNCTION LIST
Pin#
SSOP20-C3 DIP16
1 16
21
32
4
5
6
7
8
9
10
11,12,19,20
13
14
15
16
17
18
3
4
5
6
7
8
9
-
10
11
12
13
14
15
Terminal
Name
PD
VDD
HSM
STEP
DIR
RESET
ENABLE
MO
ALARM
GND
N.C.
OUT2A
SENSE2
OUT2B
OUT1B
SENSE1
OUT1A
Function
Power Saving State Setting
Input Terminal
Logic Voltage Supply Terminal
HALF/FULL Step Mode Setting
Input Terminal
Stepping Pulse Input Terminal
Direction Setting Input Terminal
Reset Input Terminal
Phase Output Off Input Terminal
MO Output Terminal
Internal Protection Operation
Detection Output Terminal
Logic Ground Terminal
No Connection
2ch Output Terminal A
Current Detection Resistance
Connection Terminal 2
2ch Output Terminal B
1ch Output Terminal B
Current Detection Resistance
Connection Terminal 1
1ch Output Terminal A
Remark
L=Standby, H=Normal Operation
Logic Voltage Supply
L=FULL, H=HALF
The Translator is triggered by positive edge of STEP
Pulse.
L=FORWARD, H=REVERSE
L=The Translator is initialized, H=Normal Operation
L=ACTIVE, H=Normal Operation
When the Translator is in initial status, L level is to output.
When the internal protection operation is detected, L level
is to output.
Logic Ground
No Connection
⎯
It connects resistance for the detection of the side of 2ch.
At the unused time, it connects with GND.
⎯
⎯
It connects resistance for the detection of the side of 1ch.
At the unused time, it connects with GND.
⎯
-2-
Ver.2010-03-26
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ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNIT
Logic Supply Voltage
Motor Output Voltage
Logic Input Voltage
ALARM Output Voltage
MO Output Voltage
Output Current
ALARM Output Current
MO Output Current
Operating Temperature
Junction Temperature
Storage Temperature
Power Dissipation
(SSOP20-C3)
Power Dissipation
(DIP16)
VDD
VO
VIN
VALARM
VMO
Io
IALARM
IMO
Topr
Tj
Tstg
PD
PD
7
55
7
7
7
1.5
20
20
-40 to +85
-40 to +150
-50 to +150
1.0
1.5
1.2
1.4
2.0
V VDD PIN
V OUT1A/1B/2A/2B PIN
V
STEP, DIR, HSM, RESET,
ENABLE, PD PIN
V ALARM PIN
V MO PIN
A OUT1A/1B/2A/2B PIN
mA ALARM PIN
mA MO PIN
°C -
°C -
°C -
W (*1) Mounted on 2Layers PCB
W (*1) Mounted on 4Layers PCB
W Device itself
W (*1) Mounted on 2Layers PCB
W (*1) Mounted on 4Layers PCB
(*1): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers/4Layers)
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITION
Logic Supply Voltage
Output Current
VDD
Io
VDD=5V
VDD=3.3V
MIN.
2.7
-
-
TYP.
3.3
500
-
(Ta=25°C)
MAX. UNIT
5.5 V
- mA
500 mA
-3-
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