NJU7380E-TE1 NJR, NJU7380E-TE1 Datasheet - Page 5

• Manufacturer Part Number: NJU7380E-TE1
• Description: Motor / Motion / Ignition Controllers & Drivers Stepper Ctlr
• Manufacturer: NJR
• Type: Stepper Motor Controller/Driverr

Specifications of NJU7380E-TE1

• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 7 V
• Supply Current: 4 mA
• Mounting Style: SMD/SMT
• Package / Case: EMP-14
• Operating Temperature: 85 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

POR – power on and reset function
MO – origin monitor
output when the power is supplied to prevent missteps.
external devices that the energizing sequence is in initial status.
detection of motor origin.
HSM – half/full step mode switching
RESET
In a system using a stepping motor, the device sensor and the MO AND function enable a higher resolution
logic is set to the half step mode when HSM is low level. Although HSM can be modified this should be
avoided since a misstep of 1 pulse increment may occur if it is set simultaneous with the negative edge. See
the timing chart in Figure 4.
four of the basic step. The phase logic sequence is repeated every four pulses in the full step mode and every
eight pulses in the half step mode.
sequence start is output. At this time, the STEP input of phase logic will be ignored during the RESET is at Ｌ
level.
The internal power-on and reset circuit, which is connected to Vcc, resets the phase logic and turns off phase
Each time the power is turned on, the energizing pattern of phase logic at sequence start is output.
At sequence start of the phase logic or after POR or external RESET, an L level output is made to indicate to
This signal determines whether the stepping motor turns at half step or full step mode. The built-in phase
A two-phase stepping motor repeats the same winding energizing sequence every angle that is a multiple of
When RESET is at L level, the phase logic is initialized and the energizing pattern of phase logic at
RESET forces to initialize the phase logic to sequence start mode.
STEP,RESET
HSM,DIR
Vp
Fig.4 Timing chart
ts
tp
td
NJU7380
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