tb62202afg TOSHIBA Semiconductor CORPORATION, tb62202afg Datasheet - Page 66

• Manufacturer Part Number: tb62202afg
• Description: Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

External Capacitors for Charge Pumps
When V
for Ccp1 and Ccp2 are as shown below:
Combine Ccp1 and Ccp2 as shown in the shaded area in the above graph.
Select values 10: 1 or more for Ccp1: Ccp2.
When making a setting, evaluate properly and set values with a margin.
DD
= 5V, fchop = 100 kHz, and L = 10 mH is driven with V
0.045
0.035
0.025
0.015
0.005
0.05
0.04
0.03
0.02
0.01
x x x x
x x x x
x x x x
0
0
0.05
0.1
Ccp 1 capacitance (µF)
0.15
Usable area
66
Ccp 1 – Ccp 2
0.2
0.25
Ccp 1 = (NG)
Ccp 2 = (OK)
Recommended value
0.3
M
Recommended area
= 24 V, I
0.35
0.4
out
0.45
= 1100 mA, the theoretical values
0.5
TB62202AFG
2005-04-04