UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 170

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

168
(2)
Output waveform widths corresponding to set values
• PWM cycle = CM3
• Dead-time width = T
• Active width of positive phase (TO70, TO72, TO74 pin)
• Active width of negative phase (TO71, TO73, TO75 pin)
Caution
= {(CM3 – CM
= (CM
f
T
CM
CM
X
TM7
:
up
down
:
:
down
: Set value of CM0 to CM2 during TM7 count down
System clock oscillation frequency
TM7 count clock
Set value of CM0 to CM2 during TM7 count up
If a value whose active width in the positive phase or negative phase becomes 0 or
negative via the above calculation, TO70 to TO75 output a waveform fixed at the inactive
level with an active width of 0 (refer to Figure 8-5).
However, if CMn = 0 and BFCMn
active level.
+ CM
up
) + (CM3 – CM
up
)
DTM
T
2
TM7
CHAPTER 8 10-BIT INVERTER CONTROL TIMER
= (DTIME + 1)
T
– T
TM7
DTM
down
User’s Manual U13029EJ7V1UD
)}
T
TM7
f
X
– T
CM3 are set, TO70 to TO75 output a waveform at the
DTM