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PT8A2645PE

Description
PIR CONTROLLER DIP-16
Categorysemiconductor    Analog mixed-signal IC   
File Size358KB,13 Pages
ManufacturerDiodes
Websitehttp://www.diodes.com/
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PT8A2645PE Overview

PIR CONTROLLER DIP-16

PT8A2645PE Parametric

Parameter NameAttribute value
typeInfrared (IR)
interface-
Current - Power120µA
Operating temperature-20°C ~ 70°C
PT8A2641-2642/2645-2648
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PIR Sensor Light Switch
Product Features
Operating voltage: 5V (Typ.)
Average supply current: 120µ (Typ.)
A
2 stage op-amp for filter.
Build-in noise rejection circuit.
On-chip regulator.
Adjustable output duration
Override function.
ON/AUTO/OFF selectable by MODE pin
Apply to AC 220V/50Hz and 110V/60Hz.
Auto-reset if the ZC signal disappears over 3
seconds
Output pulse (PT8A2641/5/7) to drive triac or
output level (PT8A2642/6/8) to drive relay.
CDS to enable/disable output.
40 second warm-up.
Quick check mode for installation.
Product Description
The PT8A264X is a CMOS LSI chip designed
for use in automatic PIR lamp control. It can operate
with a 2-wire configuration for triac applications or
with a 3-wire configuration for relay applications.
The chip is equipped with operational amplifiers, a
comparator, timer, a zero crossing detector, control
circuit, a voltage regulator, a system oscillator, and
an output timing oscillator.
Its PIR sensor detects infrared power variations
induced by the motion of a human body and
transforms it to a voltage variation. If the PIR output
voltage variation conforms to the criteria (refer to the
functional description), the lamp is turned on with an
adjustable duration. The PT8A264X offers three
operating modes (ON, AUTO, OFF) which can be set
through the MODE pin. While the chip is working in
the AUTO mode the user can override it and switch
to the quickly install mode, or manual ON mode, or
return to the AUTO mode by switching the power
switch.
Block Diagram
Figure 1 Block Diagram
OP2O
OP2N
OP2P
_
Comparator
+
Voltage
divider
+
_
Regulator
Control
circuit
Output
circuit
Delay
circuit
Frequency
divider
Zero cross
debounce
latch circuit
Mode and CDS
control circuit
MODE
CDS
COMPO
CDSO
RSTB
OP1O
OP1P
OP1N
VEE
RELAY
TRIAC
GND
Vcc
ZC
OSCD
delay
oscillator
System
oscillator
OSCS
12-07-0006
1
PT0192-3
07/06/12
Completely newbie help
// Timer register address definition #define NVIC_STCSR (*(volatile unsigned long *)(0xE000E010)) //STK_CSR,0xE000E010 -- Control register #define NVIC_STRVR (*(volatile unsigned long *) (0xE000E014))...
你好199108 stm32/stm8
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