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参数资料
| 型号： | AMIS30621C6217G |
| 厂商： | ON Semiconductor |
| 文件页数： | 21/59页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR STEPPER DVR/CTLR 20SOIC |
| 标准包装： | 38 |
| 应用： | PWM 电机驱动器，步进电机驱动器 |
| 评估套件： | 可供 |
| 输出数： | 1 |
| 电流 - 输出： | 800mA |
| 电压 - 负载： | 6.5 V ~ 29 V |
| 电源电压： | 6.5 V ~ 29 V |
| 工作温度： | -40°C ~ 165°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 管件 |
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AMIS ? 30621
DriveHS
Tsw = 1024 m s
Tsw_on = 64 m s
512 m s
t
DriveLS
t
“R” ? Comp
R th
t
SWI_Cmp
60 m s
t
ESW
0
1
1
1
t
ActPos
t
Figure 13. Simplified Timing Diagram Showing the Change in States for SWI Comparator
Main Control and Register, OTP memory + ROM
Power ? up Phase
Power up phase of the AMIS ? 30621 will not exceed
10ms. After this phase, the AMIS ? 30621 is in standby
mode, ready to receive LIN messages and execute the
associated commands. After power ? up, the registers and
flags are in the reset state, while some of them are being
loaded with the OTP memory content (see Table 19).
Reset
After power ? up, or after a reset occurrence (e.g. a
micro ? cut on pin V BB has made V DD to go below V DDReset
level), the H ? bridges will be in high ? impedance mode, and
the registers and flags will have a predetermined value. This
is documented in Tables 19 and 20.
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> , see Table 19). The circuit is then ready
to execute a new positioning command, provided thermal
and electrical conditions allow for it.
Sleep Mode
When entering sleep mode, the stepper ? motor can be
driven to its secure position. After which, the circuit is
completely powered down, apart from the LIN receiver,
which remains active to detect a dominant state on the bus.
In case sleep mode is entered while a motion is ongoing, a
transition will occur towards secure position as described in
Positioning and Motion Control provided < SecPos> is
enabled. Otherwise, < SoftStop> is performed.
Sleep mode can be entered in the following cases:
? The circuit receives a LIN frame with identifier 0x3C
and first data byte containing 0x00 , as required by LIN
specification rev 1.3. See also Sleep in the LIN
Application Command section.
? In case the LIN bus is and remains inactive (or is lost)
during more than 25000 time slots (1.30 s at
19.2 kbit/s), a time ? out signal switches the circuit to
sleep mode.
The circuit will return to normal mode if a valid LIN frame
is received (this valid frame can be addressed to another
slave).
http://onsemi.com
21
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