PIC16F684T-E/ST Microchip Technology, PIC16F684T-E/ST Datasheet - Page 97
PIC16F684T-E/ST
Manufacturer Part Number
PIC16F684T-E/ST
Description
IC PIC MCU FLASH 2KX14 14TSSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F684-ISL.pdf
(4 pages)
4.PIC16F684-ISL.pdf
(192 pages)
5.PIC16F684-ISL.pdf
(6 pages)
Specifications of PIC16F684T-E/ST
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
14-TSSOP
For Use With
XLT14SS-1 - SOCKET TRANSITION 14DIP/14SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F684-ISL PDF datasheet #3
- PIC16F684-ISL PDF datasheet #4
- PIC16F684-ISL PDF datasheet #5
- Current page: 97 of 192
- Download datasheet (4Mb)
11.4.6
In half-bridge applications where all power switches are
modulated at the PWM frequency, the power switches
normally require more time to turn off than to turn on. If
both the upper and lower power switches are switched
at the same time (one turned on, and the other turned
off), both switches may be on for a short period of time
until one switch completely turns off. During this brief
interval, a very high current (shoot-through current) will
flow through both power switches, shorting the bridge
supply.
shoot-through current from flowing during switching,
turning on either of the power switches is normally
delayed to allow the other switch to completely turn off.
In Half-Bridge mode, a digitally programmable
dead-band delay is available to avoid shoot-through
current from destroying the bridge power switches. The
delay occurs at the signal transition from the non-active
state to the active state. See Section FIGURE 11-17:
“Example
illustration. The lower seven bits of the associated
PWM1CON register (Register 11-3) sets the delay
period in terms of microcontroller instruction cycles
(T
FIGURE 11-17:
© 2007 Microchip Technology Inc.
CY
Standard Half-Bridge Circuit (“Push-Pull”)
or 4 T
To
OSC
PROGRAMMABLE DEAD-BAND
DELAY MODE
of
).
avoid
Half-Bridge
EXAMPLE OF HALF-BRIDGE APPLICATIONS
this
potentially
Applications”
P1A
P1B
destructive
for
FET
Driver
FET
Driver
FIGURE 11-16:
P1A
P1B
td = Dead-Band Delay
Note 1: At this time, the TMR2 register is equal to the
(2)
(2)
V+
V-
2: Output signals are shown as active-high.
(1)
Pulse Width
td
PR2 register.
Load
Period
td
EXAMPLE OF
HALF-BRIDGE PWM
OUTPUT
+
V
-
+
V
-
PIC16F684
(1)
Period
DS41202F-page 95
(1)
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