参数资料
型号: TB62201AF
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, 1.5 A, PDSO38
封装: 0.450 INCH, 0.65 MM PITCH, HEAT SINK, PLASTIC, SOP-36/38
文件页数: 19/89页
文件大小: 1396K
代理商: TB62201AF
TB62201AF
2005-04-04
26
Mixed Decay Mode Waveforms (concept of mixed decay mode)
In Decay modes 1 to 4, any point from A to H can be set using 3-bit + 1-bit serial data × 4.
(Slow Decay mode for Decay mode 0 in the above figure can be set by setting current Decay mode X to 0.)
NF is the point where the output current reaches the set current value. RNF is the timing for monitoring the set
current.
In Mixed Decay and Fast Decay modes, where the condition RNF (set current monitor signal) < (output current)
applies, Charge mode is cancelled at the next chopping cycle (charge cancel circuit). Therefore, at the next chopping
cycle, the IC enters Slow + Fast modes (Slow → Fast at MDT).
NF
fchop
SLOW
DECAY
MODE
CR pin
input
waveform
NF
Set current value
RNF
DECAY MODE 0
37.5%
MIXED
DECAY
MODE
RNF
Set current value
DECAY MODE 1
75%
MIXED
DECAY
MODE
RNF
Set current value
MDT
NF
DECAY MODE 2
FAST
DECAY
MODE
RNF
Set current value
DECAY MODE 3
100%
75%
50%
25%
0
MDT
Slow
Charge
Slow
Fast
Monitoring
set current
value
Charge
Fast
Charge
NF
Fast
87.5%
62.5%
37.5%
12.5%
A
B
C
D
E
F
G
H
I
Monitoring
set current
value
Monitoring
set current
value
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相关代理商/技术参数
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