NJM3517
STEPPER MOTOR CONTROLLER / DRIVER
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GENERAL DESCRIPTION
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.
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FEATURES
• Internal complete driver and phase logic
• Continuous-output current
2 x 350mA
NJM3517D2
NJM3517E2
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PACKAGE OUTLINE
• 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
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BLOCK DIAGRAM
V
CC
V
SS
NJM3517
POR
RC
Mono
F-F
L
A
L
B
STEP
DIR
HSM
INH
O
A
O
B
Phase
Logic
P
A
P
B2
P
B
P
B1
P
A2
P
A1
GND
Figure 1. Block diagram
NJRC [ NEW JAPAN RADIO ]
