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: 60/89页
文件大小: 1396K
代理商: TB62201AF
TB62201AF
2005-04-04
63
Current Discharge Path when Current Data
= 0000 are Input during Operation
In Slow Decay Mode, when all output transistors are forced to switch off, coil energy is discharged in the following
MODES :
Note: Parasitic diodes are located on dotted lines. In normal MIXED DECAY MODE, the current does not flow to the
parasitic diodes. However, when signal 0000 is input during operation, the current flows to them.
As shown in the figure at right, an output transistor has parasitic diodes.
To discharge energy from the coil, each transistor is switched on allowing current to flow in the reverse direction to
that in normal operation. As a result, the parasitic diodes are not used. If all the output transistors are forced to
switch off, the energy of the coil is discharged via the parasitic diodes.
To VM
R
RS
Load
U1
U2
L1
L2
PGND
(Note)
To VM
R
RS
Load
U1
U2
L1
L2
PGND
(Note)
To VM power supply
Load
U1
U2
L1
L2
PGND
(Note)
RS pin
OFF
ON
OFF
Charge mode
Slow Decay mode
Forced OFF mode
OFF
Input Current DATA
= 0000
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