STA333BW View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STA333BW
STMicroelectronics
'STA333BW' PDF : 67 Pages View PDF
STA333BW
Figure 13. OCFG = 11
Register description
Half
Bridge
Half
Bridge
OUT1A
OUT1B
Half
Bridge
Half
Bridge
OUT2A
OUT2B
Channel 3
OUT3A
OUT3B
Channel 1
OUT4A
OUT4B
Channel 2
The STA333BW can be configured to support different output configurations. For each PWM
output channel a PWM slot is defined. A PWM slot is always 1 / (8 * fs) seconds length. The
PWM slot define the maximum extension for PWM rise and fall edge, that is, rising edge as
far as the falling edge cannot range outside PWM slot boundaries.
Figure 14. Output mapping scheme
FFX â„¢
modulator
FFX1A
FFX1 B
OUT1A
FFX2 A
FFX 2B
FFX3 A
FFX3B
OUT1B
OUT2A
FFX4 A
FFX 4B
OUT2B
REMAP
OUT3A
OUT3B
OUT4A
OUT4B
Power
Bridge
OUT1A
OUT1B
OUT2A
OUT2B
For each configuration the PWM signals from the digital driver are mapped in different ways
to the power stage:
Doc ID 13773 Rev 3
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