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| NJW4351 Datasheet, PDF (1/18 Pages) New Japan Radio – Unipolar Stepper Motor Driver | |||
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NJW4351
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
âVer.2010-03-26
-1-
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