PIC18F2580-E/SO Microchip Technology, PIC18F2580-E/SO Datasheet - Page 184
![IC PIC MCU FLASH 16KX16 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC18F2580-E/SO
Manufacturer Part Number
PIC18F2580-E/SO
Description
IC PIC MCU FLASH 16KX16 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F4480-IPT.pdf
(490 pages)
3.PIC18F4480-IPT.pdf
(8 pages)
4.PIC18F4480-IPT.pdf
(6 pages)
5.PIC18F4480-IPT.pdf
(6 pages)
6.PIC18F2580-ESO.pdf
(483 pages)
Specifications of PIC18F2580-E/SO
Program Memory Type
FLASH
Program Memory Size
32KB (16K x 16)
Package / Case
28-SOIC (7.5mm Width)
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
SPI/I2C/MSSP/EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM163011, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F2580-E/SO
Manufacturer:
Microchi
Quantity:
2 952
- PIC18F2221-ISO PDF datasheet
- PIC18F4480-IPT PDF datasheet #2
- PIC18F4480-IPT PDF datasheet #3
- PIC18F4480-IPT PDF datasheet #4
- PIC18F4480-IPT PDF datasheet #5
- PIC18F2580-ESO PDF datasheet #6
- Current page: 184 of 490
- Download datasheet (9Mb)
PIC18F2480/2580/4480/4580
FIGURE 17-7:
17.4.5.1
In the Full-Bridge Output mode, the EPWM1M1 bit in
the CCP1CON register allows the user to control the
forward/reverse direction. When the application firm-
ware changes this direction control bit, the module will
assume the new direction on the next PWM cycle.
Just before the end of the current PWM period, the
modulated outputs (P1B and P1D) are placed in their
inactive state, while the unmodulated outputs (P1A and
P1C) are switched to drive in the opposite direction.
This occurs in a time interval of (4 T
Prescale Value) before the next PWM period begins.
The Timer2 prescaler will be either 1, 4 or 16, depend-
ing on the value of the T2CKPS bits (T2CON<1:0>).
During the interval from the switch of the unmodulated
outputs to the beginning of the next period, the
modulated outputs (P1B and P1D) remain inactive.
This relationship is shown in Figure 17-8.
Note that in the Full-Bridge Output mode, the CCP1
module does not provide any dead-band delay. In
general, since only one output is modulated at all times,
dead-band delay is not required. However, there is a
situation where a dead-band delay might be required.
This situation occurs when both of the following
conditions are true:
1.
2.
DS39637D-page 184
The direction of the PWM output changes when
the duty cycle of the output is at or near 100%.
The turn-off time of the power switch, including
the power device and driver circuit, is greater
than the turn-on time.
PIC18F2X80/4X80
Direction Change in Full-Bridge
Output Mode
P1A
P1B
P1C
P1D
EXAMPLE OF FULL-BRIDGE OUTPUT APPLICATION
OSC
* (Timer2
FET
Driver
FET
Driver
QA
QB
Figure 17-9 shows an example where the PWM direc-
tion changes from forward to reverse at a near 100%
duty cycle. At time t1, the outputs, P1A and P1D,
become inactive, while output, P1C, becomes active. In
this example, since the turn-off time of the power
devices is longer than the turn-on time, a shoot-through
current may flow through power devices, QC and QD
(see Figure 17-7), for the duration of ‘t’. The same
phenomenon will occur to power devices, QA and QB,
for PWM direction change from reverse to forward.
If changing PWM direction at high duty cycle is required
for an application, one of the following requirements
must be met:
1.
2.
Other options to prevent shoot-through current may
exist.
Reduce PWM for a PWM period before
changing directions.
Use switch drivers that can drive the switches off
faster than they can drive them on.
Load
V+
V-
QC
QD
© 2009 Microchip Technology Inc.
FET
Driver
FET
Driver
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