tb62209f TOSHIBA Semiconductor CORPORATION, tb62209f Datasheet - Page 39

• Manufacturer Part Number: tb62209f
• Description: Stepping Motor Driver Ic Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

•
•
Initial charging
(1)
(2)
(3)
Actual operation
(4)
(5)
When RESET is released, T
Di1.
T
When the voltage difference between V
reaches V
Ccp 1 charge is used at f
Charges up by (1) and (2) above.
r1
is turned OFF, T
DD
=
or higher, operation halts (Steady state).
r2
is turned ON, and Ccp 1 is charged from Ccp 2 via Di2.
chop
r1
switching and the V
is turned ON and T
M
and V
H
H
(Ccp A pin voltage = charge pump voltage)
r2
potential drops.
turned OFF. Ccp 2 is charged from Ccp 2 via
=
=
=
+
=
=
µ
µ