tb62202afg TOSHIBA Semiconductor CORPORATION, tb62202afg Datasheet - Page 67
tb62202afg
Manufacturer Part Number
tb62202afg
Description
Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TB62202AFG.pdf
(84 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TB62202AFG
Manufacturer:
TOSHIBA/东芝
Quantity:
20 000
- Current page: 67 of 84
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Charge Pump Rise Time
t
ONG
V
M
RESET
+ (V
: Time taken for capacitor Ccp2 (charging capacitor) to fill up Ccp1 (capacitor used to save charge) to V
V
The internal IC cannot drive the gates correctly until the voltage of Ccp1 reaches V
wait for t
Basically, the larger the Ccp1 capacitance, the longer the initial charge-up time but the smaller the
voltage fluctuation.
The smaller the Ccp1 capacitance, the shorter the initial charge-up time but the larger the voltage
fluctuation.
Depending on the combination of capacitors (especially with small capacitance), voltage may not be
sufficiently boosted. Thus, use the capacitors under the capacitor combination conditions (Ccp1 = 0.22 µF,
Ccp2 = 0.01 µF) recommended by Toshiba.
DD
V
DD
DD
× 90%)
after a reset is released.
+ V
5 V
0 V
V
M
M
ONG
50%
or longer before driving the motors.
t
ONG
67
M
+ V
TB62202AFG
DD
2005-04-04
. Be sure to
M
+
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