参数资料
型号: TB62209FG
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, 1.8 A, PDSO38
封装: 0.450 INCH, 0.65 MM PITCH, PLASTIC, HSOP-26/38
文件页数: 14/51页
文件大小: 501K
代理商: TB62209FG
TB62209FG
2005-03-02
21
11. Current Waveform and Setting of Mixed Decay Mode
At constant current control, in current amplitude (pulsating current) Decay mode, a point from 0 to 3 can
be set using 2-bit parallel data.
NF is the point where the output current reaches the set current value. RNF is the timing for monitoring
the set current.
The smaller the MDT value, the smaller the current ripple (peak current value). Note that current decay
capability deteriorates.
NF
fchop
12.5%
MIXED
DECAY
MODE
CR pin
internal
CLK
waveform
Charge mode
→ NF: set current value reached → Slow mode
→ Mixed decay timing → Fast mode → current monitored
(when set current value
> output current) Charge mode
NF
RNF
Set current value
RNF
MDT
DECAY MODE 0
37.5%
MIXED
DECAY
MODE
Charge mode
→ NF: set current value reached → Slow mode
→ Mixed decay timing → Fast mode → current monitored
(when set current value
> output current) Charge mode
RNF
Set current value
DECAY MODE 1
75%
MIXED
DECAY
MODE
Charge mode
→ NF: set current value reached → Slow mode
→ Mixed decay timing → Fast mode → current monitored
(when set current value
> output current) Charge mode
RNF
Set current value
MDT
NF
DECAY MODE 2
FAST
DECAY
MODE
Fast mode
→ RNF: current monitored (when set current value
> output current) Charge mode → Fast mode
RNF
Set current value
DECAY MODE 3
100%
75%
50%
25%
0
MDT
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相关代理商/技术参数
参数描述
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