PIC18LF24J10-I/SO Microchip Technology, PIC18LF24J10-I/SO Datasheet - Page 144
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PIC18LF24J10-I/SO
Manufacturer Part Number
PIC18LF24J10-I/SO
Description
Microcontroller
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F24J10-ISO.pdf
(368 pages)
3.PIC18F24J10-ISO.pdf
(6 pages)
4.PIC18F24J10-ISO.pdf
(6 pages)
5.PIC18F24J10-ISO.pdf
(12 pages)
6.PIC18LF24J10-ISS.pdf
(32 pages)
Specifications of PIC18LF24J10-I/SO
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
21
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPIC, I2C, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
21
Number Of Timers
3
Maximum Operating Temperature
+ 85 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, DM183032, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162074 - HEADER INTRFC MPLAB ICD2 44TQFPMA180012 - MODULE PLUG-IN 18LF25J10 28SOICAC162067 - HEADER INTRFC MPLAB ICD2 40/28PAC164332 - MODULE SKT FOR 28SOIC 18F45J10
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- PIC16F616T-ISL PDF datasheet
- PIC18F24J10-ISO PDF datasheet #2
- PIC18F24J10-ISO PDF datasheet #3
- PIC18F24J10-ISO PDF datasheet #4
- PIC18F24J10-ISO PDF datasheet #5
- PIC18LF24J10-ISS PDF datasheet #6
- Current page: 144 of 368
- Download datasheet (6Mb)
PIC18F45J10 FAMILY
FIGURE 15-7:
15.4.5.1
In the Full-Bridge Output mode, the P1M1 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 the time interval, 4 T
Prescale Value), before the next PWM period begins.
The Timer2 prescaler will be either 1, 4 or 16, depend-
ing
(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 15-8.
Note that in the Full-Bridge Output mode, the ECCP1
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.
DS39682E-page 142
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.
on
the
PIC18F4XJ10
Direction Change in Full-Bridge Mode
value
P1A
P1B
P1C
P1D
EXAMPLE OF FULL-BRIDGE APPLICATION
of
the
T2CKPS<1:0>
OSC
* (Timer2
FET
Driver
FET
Driver
bits
QA
QB
Figure 15-9 shows an example where the PWM
direction 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 15-7), 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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