TSL2562, TSL2563

LOW-VOLTAGE

LIGHT-TO-DIGITAL CONVERTER

TAOS066N − AUGUST 2010

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The LUMENOLOGY

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Copyright

E 2010, TAOS Inc.

www.taosinc.com

User-Defined Upper and Lower Threshold

Settings

400 kHz

Time Supporting 1,000,000-to-1 Dynamic

Range

Ripple

Output

Power Down Mode

Description

The TSL2562 and TSL2563 are low-voltage

light-to-digital converters that transform light

intensity to a digital signal output capable of direct

Each device combines one broadband photo-

diode (visible plus infrared) and one infrared-re-

sponding photodiode on a single CMOS inte-

grated circuit capable of providing a near-photop-

ic response over an effective 20-bit dynamic

range (16-bit resolution). Two integrating ADCs

convert the photodiode currents to a digital output

that represents the irradiance measured on each

channel. This digital output can be input to a

microprocessor where illuminance (ambient light

level) in lux is derived using an empirical formula

to approximate the human eye response. The

TSL2562 device permits an SMB-Alert style

interrupt, and the TSL2563 device supports a

traditional level style interrupt that remains

asserted until the firmware clears it.

While useful for general purpose light sensing applications, the TSL2562/63 devices are designed particularly

for display panels (LCD, OLED, etc.) with the purpose of extending battery life and providing optimum viewing

in diverse lighting conditions. Display panel backlighting, which can account for up to 30 to 40 percent of total

platform power, can be automatically managed. Both devices are also ideal for controlling keyboard illumination

based upon ambient lighting conditions. Illuminance information can further be used to manage exposure

control in digital cameras. The TSL2562/63 devices are ideal in notebook/tablet PCs, LCD monitors, flat-panel

televisions, cell phones, and digital cameras. In addition, other applications include street light control, security

lighting, sunlight harvesting, machine vision, and automotive instrumentation clusters.

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Texas Advanced Optoelectronic Solutions Inc.

1001 Klein Road

S Suite 300 S Plano, TX 75074 S (972) 673-0759

6 SDA

5 INT

4 SCL

PACKAGE T

6-LEAD TMB

(TOP VIEW)

ADDR SEL 2

GND 3

PACKAGE CS

6-LEAD CHIPSCALE

(TOP VIEW)

ADDR SEL 2

GND 3

6 SDA

5 INT

4 SCL

Package Drawings are Not to Scale

PACKAGE FN

DUAL FLAT NO-LEAD

(TOP VIEW)

6 SDA

5 INT

4 SCL

ADDR SEL 2

GND 3

PACKAGE CL

6-LEAD ChipLED

(TOP VIEW)

4 SCL

3 ADDR SEL

2 GND

SDA 5

INT 6