Ht7630 Controlador Pir Dip16 Itytarg

Features
• Low stand-by current : <30µA
• Operating voltage : 5V~12V
• On-chip regulator
• 40 seconds warm-up
• Low battery detector
• 2 stage OP amp
• Multi-function indicator
• 16 pin DIP/SOP package

General Description
The HT7630 is a low power PIR controller LSI
designed for battery powered door bell/alarm
application. The chip contains operation amplifiers, comparators, a timer, a voltage regulator,
1 oscillator and control circuits.
The chip amplifies the signal from a PIR (Pyroelectric Infra Red) sensor to detect the motion
of a human body. When the PIR output meets
certain criteria (see functional description), the
chip will output an active low signal to trigger a
sound generator chip or another device. The
output duration is 4 seconds for a door bell and
32 seconds for an alarm depending on the
MODE pin selection.
It also provides an LB input pin for low battery
detection during warm-up, a EN input pin for
output enable/disable control and a BZ pin for
status indication. An LED or piezo buzzer can
be connected to the BZ pin to indicate the following: warm-up, triggering, alarm triggered
memory and low battery. The IC is offered in a
16 pin DIP/SOP package.