AMIS30621C6217G ON Semiconductor, AMIS30621C6217G Datasheet - Page 33

• Manufacturer Part Number: AMIS30621C6217G
• Description: IC MOTOR STEPPER DVR/CTLR 20SOIC
• Manufacturer: ON Semiconductor
• Type: Micro Stepping Motor Driverr

Specifications of AMIS30621C6217G

• Number Of Outputs: 4
• Voltage - Supply: 6.5 V ~ 29 V
• Operating Temperature: -40°C ~ 165°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 6.5 V to 29 V
• Supply Current: 800 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Applications: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Important: While in shutdown mode, since there is no hold
current in the coils, the mechanical load can cause a step loss,
which indeed cannot be flagged by the AMIS−30621.
the circuit enters the sleep mode immediately (Note 1).
Warning: The application should limit the number of
consecutive
General Description
communications protocol that efficiently supports the
control of mechatronics nodes in distributed automotive
applications. The physical interface implemented in the
AMIS−30621 is compliant to the LIN rev. 2.0 & 2.1
specifications. It features a slave node, thus allowing for:
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Table 23. EXAMPLE OF POSSIBLE SEQUENCE USED TO DETECT AND DETERMINE CAUSE OF MOTOR
SHUTDOWN
− The circuit is driven in
motor shutdown mode
− The application is not
aware of this
If the LIN communication is lost while in shutdown mode,
The LIN (local interconnect network) is a serial
single−master / multiple−slave communication
self synchronization without quartz or ceramics
resonator in the slave nodes
guaranteed latency times for signal transmission
single−signal−wire communication
transmission speed of 19.2 kbit/s
<ElDef> = ‘1’ or
<CPFail> = ‘1’
V
T
BB
J
w Tsd or
v UV2 or
O
GetStatus
− The position set−point is
updated by the LIN
Master
− Motor shutdown mode
⇒ no motion
− The application is still
unaware
or
SetPosition
frame
GetFullStatus
O
LIN CONTROLLER
http://onsemi.com
− The application is aware
of a problem
− Reset <TW> or <TSD> or <UV2> or <StepLoss> or <ElDef> or
<CPFail> by the application
− Possible new detection of over temperature or low voltage or electrical
problem ⇒ Circuit sets <TW> or <TSD> or <UV2> or <StepLoss> or
<ElDef> or <CPFail> again at ‘1’
GetFullStatus or
GetStatus frame
33
commands to try to get the AMIS−30621 out of shutdown
mode when this proves to be unsuccessful, e.g. there is a
permanent defect. The reliability of the circuit could be
altered since Get(Full)Status attempts to disable the
protection of the H−bridges.
Note 1: The Priority Encoder is describing the management
of states and commands.
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protocol handler.
pull−up resistor as a transmitter, and a resistive divider with
a comparator as a receiver. The specification of the line
driver/receiver follows the ISO 9141 standard with some
enhancements regarding the EMI behavior.
O
It includes the analog physical layer and the digital
The analog circuitry implements a low side driver with a
selectable length of Message Frame: 2, 4, and 8 bytes
configuration flexibility
data checksum (classic checksum, cf. LIN1.3) security
and error detection
detection of defective nodes in the network
− Possible confirmation of the problem
GetFullStatus or GetStatus frame
O...