LX1972MINI MICROSEMI [Microsemi Corporation], LX1972MINI Datasheet

LX1972MINI

Manufacturer Part Number

LX1972MINI

Description

LX1972 Light Sensor

Manufacturer

MICROSEMI [Microsemi Corporation]

Datasheet

1.LX1972MINI.pdf (1 pages)

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1/27/2005

Rev 1.1a

interfaces to allow control of virtually any lighting requirement. Changing the

resistor values sets the desired minimum and maximum brightness range. As

configured, there is considerable gain at lower light levels (from < 1lux to about

300lux with a 5V VDD). Output voltage is ground referenced (as configured

VO2) or moving the jumper from J1 to J2 changes the voltage reference to

VDD at VO1. The J1 and J2 locations also allow placing a second resistor in

parallel to modify the light conversion gain; this will allow a wider light range

(with less overall resolution).

Protected By U.S. Patents: 6,787,757; Patents Pending

The design of the LX1972 Mini Light Sensor Evaluation Board easily

GND

AME

Input Supply Voltage

Ground Reference for Power and Signal Outputs

11861 Western Avenue, Garden Grove CA. 92841 714-898-8121, FAX: 714-893-2570

VDD

VO1

VO2

VDD

Total

300

lux

SNK

Dark

SRC

F U N C T I O N A L P I N D E S C R I P T I O N

VO2

5.5V

then

VO2

(if

≈

10mV

Open)

LX1972

S C H E M A T I C

Integrated Products

Microsemi

50K

ESCRIPTION

4.7uF

VO2

VO1

LX1972 Mini Evaluation Board

LX1972 Light Sensor

P A C K A G E P I N O U T

P H O T O

BC P

(Top View)

ACKAGE

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