AMIS30624C6245RG ON Semiconductor, AMIS30624C6245RG Datasheet - Page 22

• Manufacturer Part Number: AMIS30624C6245RG
• Description: IC STEPPER DVR I2C 800MA 32-NQFP
• Manufacturer: ON Semiconductor
• Type: I2C Micro Stepping Motor Driverr

Specifications of AMIS30624C6245RG

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: 800mA
• Voltage - Supply: 8 V ~ 29 V
• Operating Temperature: -40°C ~ 165°C
• Mounting Type: Surface Mount
• Package / Case: 32-VSQFP
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 8 V to 29 V
• Supply Current: 800 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 766-1002-2

AMIS-30624
14.2 Main Control and Register, OTP Memory + ROM
14.2.1. Power-up Phase
The power-up phase of the AMIS-30624 will not exceed 10ms. After this phase, the AMIS-30624 is in shutdown mode, ready to receive
I
being loaded with the OTP memory content (see Table 18).
14.2.2. Reset State
After power-up, or after a reset occurrence (e.g. a micro cut on pin VBB has made Vdd go below VddReset level), the H-bridges will be
in high impedance mode, and the registers and flags will be in a predetermined position. This is documented in Table 18 and Table 19.
14.2.3. Soft Stop
A soft stop is an immediate interruption of a motion, but with a deceleration phase. At the end of this action, the register TagPos is
loaded with the value contained in register ActPos to avoid an attempt of the circuit to achieve the motion (seeTable 18). The circuit is
then ready to execute a new positioning command, provided thermal and electrical conditions allow for it.
14.2.4. Thermal Shutdown Mode
When thermal shutdown occurs, the circuit performs a SoftStop command and goes to motor shutdown mode (see Figure 15).
14.2.5. Temperature Management
The AMIS-30624 monitors temperature by means of two thresholds and one shutdown level, as illustrated in the Figure 15. The only
condition necessary to reset flags <TW> and <TSD> (respectively thermal warning and thermal shutdown) is when the temperature is
lower than T
2
C messages and execute the associated commands. After power-up, the registers and flags are in the reset state; some of them
tw
causing the occurrence of a
<Tinfo> = '01'
<TW> = '0'
<TSD> = '0'
<Tinfo> = '01'
<TW> = '0'
<TSD> = '0'
TEMP
LOW
SHUTDOWN
<Tinfo> = '01'
<TW> = '0'
<TSD> = '0'
THERMAL
GetFullStatus1
T° > T
POST
2
Figure 15: State Diagram Temperature Management
tw
<GetFullStatus1>
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& I
T° > T
T° < T
2
C frame
SHUTDOWN
THERMAL
T° < T
low
tw
POST
T° < T
1
low
I
<Tinfo> = '01'
<TW> = '0'
<TSD> = '0'
2
tw
C frame.
<GetFullStatus1>
NORMAL
WARNING
THERMAL
& I
TEMP
T° < T
T° < T
POST
2
T° > T
C frame
tw
tsd
<Tinfo> = '01'
<TW> = '0'
<TSD> = '0'
tsd
T° < T
T° > T
tw
T° > T
SHUTDOWN
tw
THERMAL
tw
THERMAL
WARNING
T° > T
PC20070219.1
<Tinfo> = '01'
<TW> = '0'
<TSD> = '0'
tsd
Tinfo> = '01'
TW> = '0'
TSD> = '0'