AMIS30623C623BRG ON Semiconductor, AMIS30623C623BRG Datasheet - Page 23

• Manufacturer Part Number: AMIS30623C623BRG
• Description: IC MOTOR DRIVER/CTLR 32-QFP
• Manufacturer: ON Semiconductor

Specifications of AMIS30623C623BRG

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: 800mA
• Voltage - Supply: 6.5 V ~ 29 V
• Operating Temperature: -40°C ~ 165°C
• Mounting Type: Surface Mount
• Package / Case: 32-VSQFP
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Autarkic Functionality in Under−Voltage
Condition
Battery Voltage Management
of one threshold and one shutdown level. The only condition
to reset flags <UV2> and <StepLoss> is to recover by a
battery voltage higher than UV1 and to receive a
GetStatus or a GetFullStatus command.
Autarkic Function
followed by <ShutUnder> when V
level or <CPFail> = 1. The motion is stopped immediately
and Target Position (TagPos) is kept and not overwritten by
Actual Position (ActPos). The motor is in HiZ state and the
flags <UV2> and <Steploss> are set to inform the master
that the voltage has dropped below UV2 or the charge pump
voltage has dropped below the level of the charge pump
comparator and loss of steps is possible.
•
The AMIS−30623 monitors the battery voltage by means
The device enters states <HardUnder> (see Figure 16),
If in this state V
then AMIS−30623 returns to <Stopped> state. From
there, it resumes the interrupted motion and accepts
updates of the target position by means of the
commands SetPosition, SetPositionShort,
T
T warning level
T <tw> bit
T <tsd> bit
T shutdown level
BB
becomes > UV1 within 15 seconds,
Figure 15. Illustration of Thermal Management Situation
T < T
getfullstatus
getstatus or
BB
tw
is below the UV2
and
http://onsemi.com
23
T > Ttsd, motor
stops and
shutdown
•
Important Notes:
SetPosParam and GotoSecurePosition, even
if the <UV2> flag, the <CPFail> flag and
<Steploss> flags are NOT cleared.
If however the V
or the charge pump voltage level is below the charge
pump comparator for more than 15 seconds, then the
device will enter <Shutdown> state and the target
position is overwritten by Actual Position. This state
can be exited only if V
voltage is above the charge pump comparator voltage
and an incoming command GetStatus or
GetFullStatus is received.
1. In the case of Autarkic positioning, care needs to
2. The SetDualPosition command will only be
3. RAM reset occurs when Vdd < VddReset (digital
4. The Autarkic function remains active as long as
be taken because accumulated steploss can cause a
significant deviation between physical and stored
actual position.
executed after clearing the <UV2>, CPFail and
<Steploss> flags.
Power−On−Reset level).
V
DD
> VddReset.
BB
T < T
getstatus or
getfullstatus
voltage remains below UV2 level
BB
tw
and
is > UV1, the charge pump
t