PIR CONTROLLER. M7621 Datasheet

M7621 CONTROLLER. Datasheet pdf. Equivalent

Part M7621
Description PIR CONTROLLER
Feature .
Manufacture MOSDESIGN
Datasheet
Download M7621 Datasheet



M7621
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
PIR CONTROLLER
FOR DC/AC APPLICATIONS
PIR CONTROLLER
M7621
DESCRIPTION
The M7621 integrated circuit combines all required functions for a single chip Passive Infra Red (PIR) light controller. It is
designed for load switching with a transistor or a relay in 3 wire AC and DC systems.
A conventional PIR sensor connects directly to the PIR input. The pull-down resistor and DC decoupling circuitry are integrated on
chip.
The PIR signal is converted to a 15 bit digital value. External potentiometers or resistors are used to set the operating parameters
for sensitivity, on-time, brightness, fade, CDS sensor and environment temperature correction. The corresponding voltage levels
are converted to digital values with a 4 bit resolution all signal processing is performed digitally.
FEATURES
Digital signal processing
Temperature compensation input
Adjustment brightness.
Adjustable PIR sensitivity
Adjustable output turn-on time
Retrigger / Non-retrigger function
Dimmer function
PWM output
RELAY output
SOP-16 package
APPLICATIONS
PIR light controller, Motion Detector, Alarm system, Auto-door bell
PIN ASSIGMENT
TEST
TTEST
RETRIG
PIRIN
VSS
RELAY
PWM
VDD
M7621
1 16
89
VDDA
SWIN
CDS
TCOMP
ON_TIME
SENS
FADE
BRIGHT
1/7 2016-09-12



M7621
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
PIR CONTROLLER
FOR DC/AC APPLICATIONS
BLOCK DIAGRAM
VDDA
RETRIG SWIN CDS
PIRIN
Input Amplifier
A /D Converter
Band Pass Filter
Oscillator
Controller
TEST
TTEST
PIR CONTROLLER
M7621
PWM
RELAY
SENS
BRIGHT
FADE
ON-TIME
TCOMP
2/7 2016-09-12





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