MAX9635_11 datasheet(2/20 Pages) MAXIM

Part #	MAX9635

Description	Industry’s Lowest-Power Ambient Light Sensor with ADC

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Manufacturer	MAXIM [Maxim Integrated Products]

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Industry’s Lowest-Power

Ambient Light Sensor with ADC

2

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

INT to GND............................................... -0.3V to (VCC + 0.3V)

All Other Pins to GND .............................................-0.3V to +4V

INT Short-Circuit Current Duration ........................................ 10s

All Other Pins Short-Circuit Current Duration............Continuous

Continuous Input Current into Any Terminal................... Q20mA

Continuous Power Dissipation

6 OTDFN (derate 11.9mW/NC above +70NC)..............953mW

Operating Temperature Range.......................... -40NC to +85NC

ELECTRICAL CHARACTERISTICS

(VCC = 1.8V, TMIN to TMAX = -40NC to +85NC, unless otherwise noted.) (Note 1)

ABSOLUTE MAxIMUM RATINGS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAx

UNITS

OPTICAL CHARACTERISTICS

Maximum Lux Sensitivity

Fluorescent light

0.045

Lux/LSB

Saturation Ambient Lux Level

Sunlight

188,000

Lux

Total Error

TE

Green LED 538nm response,

TA = +25NC (Note 2)

15

%

Light Source Matching

Fluorescent/incandescent light

10

%

Infrared Transmittance at 940nm

IRR

TA = +25NC (Note 3)

0

0.5

%

Ultraviolet Transmittance at

363nm

UVR

TA = +25NC (Note 3)

1.2

%

Dark Level Count

0LUX

0 lux, TA = +25NC, 800ms range

0

0.045

Lux

Maximum Signal Integration

Time

Has 50/60Hz rejection

800

ms

Minimum Signal Integration Time

Automatic mode, has 50/60Hz rejection

100

ms

Manual mode only

6.25

ADC Conversion Time

ACT

100ms range, TA = +25NC

99.6

100

100.4

ms

100ms range

97

103

107

POWER SUPPLY

Power-Supply Voltage

VCC

Guaranteed by TE test

1.7

3.6

V

Power-Supply Current

ICC

TA = +25NC, 90 lux, I2C inputs inactive

0.65

1.2

F

A

TA = -40NC to +85NC

1.6

DIGITAL I/O CHARACTERISTICS

Output Low Voltage SDA, INT

VOL

ISINK = 6mA

0.06

0.4

V

INT Leakage Current

TA = +25NC

0.01

20

nA

SCL, SDA, A0 Input Current

IIH, IIL

TA = +25NC

0.01

20

nA

I2C Input Low Voltage

VIL_I2C

SDA, SCL

0.3 x

VCC

V

I2C Input High Voltage

VIH_I2C

SDA, SCL

0.7 x

VCC

V

Address Input Low Voltage

VIL_A0

A0

0.3

V

Address Input High Voltage

VIH_A0

A0

VCC -

0.3V

V

Input Capacitance

3

pF

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