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NCV70501 Datasheet, PDF (1/22 Pages) ON Semiconductor – Micro-Stepping Motor Driver | |||
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NCV70501
Micro-Stepping Motor
Driver
Introduction
NCV70501 is a microâstepping stepper motor driver for bipolar
stepper motors. The chip is connected through I/O pins and an SPI
interface with an external microcontroller. The NCV70501 contains a
currentâtranslation table and takes the next microâstep depending on
the clock signal on the âNXTâ input pin and the status of the âDIRâ (=
direction) register or input pin. The chip provides an error message if
stall, an electrical error or an elevated junction temperature is detected.
It is using a proprietary PWM algorithm for reliable current control.
NCV70501 is fully compatible with the automotive voltage
requirements and is ideally suited for generalâpurpose low current
range stepper motor applications in the automotive, industrial,
medical, and marine environment.
Features
⢠Dual HâBridge for 2âPhase Stepper Motors
⢠Programmable PeakâCurrent Up to 300 mA
⢠OnâChip Current Translator
⢠SPI Interface With Daisy Chain Capability
⢠6 Step Modes from FullâStep up to 16 MicroâSteps
⢠Fully Integrated CurrentâSensing and CurrentâRegulation
⢠On Chip Stall Detection
⢠PWM Current Control with Automatic Selection of Fast and Slow
Decay
⢠Fixed PWM Frequency
⢠Active FlyâBack Diodes
⢠Full Output Protection and Diagnosis
⢠Thermal (Warning and) Shutdown
⢠Compatible with 3.3 V Microcontrollers, 5 V Tolerant Inputs, 5 V
Tolerant Open Drain Outputs
⢠Reset Function
⢠NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AECâQ100
Qualified and PPAP Capable
⢠These Devices are PbâFree and are RoHS Compliant
http://onsemi.com
MARKING
DIAGRAM
SOICâ16
CASE 751B
NCV70501â2G
AWLYWW
A
= Assembly Location
WL = Wafer Lot
Y
= Year
WW = Work Week
G
= PbâFree Package
PINOUT
DO 1
CSB 2
DI 3
GND 4
CLK 5
NXT 6
DIR 7
ERRB 8
16 TST
15 MOTXP
14 MOTXN
13 GND
12 VBB
11 MOTYP
10 MOTYN
9 RHB
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
1
March, 2013 â Rev. 2
Publication Order Number:
NCV70501/D
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