an44060a Panasonic Corporation of North America, an44060a Datasheet - Page 17

• Manufacturer Part Number: an44060a
• Description: Ic For Stepping Motor Drives
• Manufacturer: Panasonic Corporation of North America

AN44060A
V
output waveform
19. PWM frequency t
20. Pulse blanking time T
Electrical Characteristics Test Procedures 2
RCSA
100 mV
These values are obtained from the RCSA and RCSB
voltages with both PHA1 and PHB1 set to 0 V and 5 V
respectively under the following condition.
V
The V
0 V
REFA
/V
RCSB
RCSA
= V
REFB
/V
RCSB
T
= 0 V
B
output waveform is shown below.
PWM
t
PWM
B
T
B
t [ s]
SFA00002AEB
Pulse blanking time T
PWM frequency t
Measure the cycle time of output voltage pulses
and obtain the value from the following formula.
Measure the high-level time of RCS voltage output.
f
PWM
=
PWM
t
PWM
1
B
17