PIC18F44J50-I Datasheet, PDF (257/562 Pages) Microchip Technology – 28/44-Pin, Low-Power, High-Performance USB Microcontrollers

PIC18F46J50 FAMILY
18.5.2 FULL-BRIDGE MODE
In Full-Bridge mode, all four pins are used as outputs.
An example of a full-bridge application is provided in
Figure 18-10.
In the Forward mode, the PxA pin is driven to its active
state, the PxD pin is modulated, while the PxB and PxC
pins will be driven to their inactive state as provided in
Figure 18-11.
In the Reverse mode, the PxC pin is driven to its active
state, the PxB pin is modulated, while the PxA and PxD
pins will be driven to their inactive state as provided
Figure 18-11.
The PxA, PxB, PxC and PxD outputs are multiplexed
with the port data latches. The associated TRIS bits
must be cleared to configure the PxA, PxB, PxC and
PxD pins as outputs.
FIGURE 18-10:
EXAMPLE OF FULL-BRIDGE APPLICATION
V+
FET
QA
Driver
QC _FET
Driver
PxA
PxB
Load
FET
Driver
FET
Driver
PxC
QB
QD
V-
PxD
 2011 Microchip Technology Inc.
DS39931D-page 257