PIC18F26K80-I Datasheet, PDF (275/622 Pages) Microchip Technology – 28/40/44/64-Pin, Enhanced Flash Microcontrollers with ECAN™ and nanoWatt XLP Technology

PIC18F66K80 FAMILY
20.4.2 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 20-8.
In the Forward mode, the P1A pin is driven to its active
state and the P1D pin is modulated, while the P1B and
P1C pins are driven to their inactive state, as provided in
Figure 20-9.
In the Reverse mode, the P1C pin is driven to its active
state and the P1B pin is modulated, while the P1A and
P1D pins are driven to their inactive state, as provided
Figure 20-9.
The P1A, P1B, P1C and P1D outputs are multiplexed
with the port data latches. The associated TRIS bits
must be cleared to configure the P1A, P1B, P1C and
P1D pins as outputs.
FIGURE 20-8:
EXAMPLE OF FULL-BRIDGE APPLICATION
V+
FET
QA
Driver
QC _FET
Driver
P1A
P1B
Load
FET
Driver
FET
Driver
P1C
QB
QD
V-
P1D
 2010-2012 Microchip Technology Inc.
DS39977F-page 275