tb6560hq TOSHIBA Semiconductor CORPORATION, tb6560hq Datasheet - Page 22
tb6560hq
Manufacturer Part Number
tb6560hq
Description
Pwm Chopper-type Bipolar Stepping Motor Driver Ic
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TB6560HQ.pdf
(31 pages)
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Current Draw-out Path when ENABLE is Input in Mid Operation
OFF
ON
L1
U1
following modes:
opposite-to-normal direction; as a result, the parasitic diode is not used. However, when all the output
transistors are forced OFF, the coil energy is drawn out via the parasitic diode.
When all the output transistors are forced OFF during Slow mode, the coil energy is drawn out in the
As shown in the figure above, an output transistor has parasitic diodes.
Normally, when the energy of the coil is drawn out, each transistor is turned ON and the power flows in the
Note: Parasitic diodes are indicated on the designed lines. However, these are not normally used in Mixed
R
Charge Mode
NF
Decay mode.
Load
Note
V
M
PGND
OFF
U2
ON
L2
OFF
ON
L1
U1
R
NF
Slow Mode
Load
Note
V
M
22
PGND
OFF
L2
U2
ON
ENABLE is input
OFF
OFF
L1
U1
Force OFF Mode
R
NF
TB6560HQ/FG
Note
Load
V
M
PGND
2006-05-31
OFF
OFF
U2
L2
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