TMD2772 datasheet(4/35 Pages) AMSCO

4 / 35 page

TMD2772

DIGITAL ALS

and PROXIMITY MODULE

TAOS147E − DECEMBER 2012

The LUMENOLOGY Company

www.taosinc.com

Terminal Functions

TERMINAL

TYPE

DESCRIPTION

NAME

NO.

TYPE

DESCRIPTION

GND

Power supply ground. All voltages are referenced to GND.

INT

Interrupt — open drain (active low).

LDR

LED driver input for proximity IR LED, constant current source LED driver.

LEDA

LED anode.

LEDK

LED cathode. Connect to LDR pin when using internal LED driver circuit.

SCL

I2C serial clock input terminal — clock signal for I2C serial data.

SDA

I/O

I2C serial data I/O terminal — serial data I/O for I2C .

VDD

Supply voltage.

Available Options

DEVICE

ADDRESS

PACKAGE − LEADS

INTERFACE DESCRIPTION

ORDERING NUMBER

TMD27721

0x39

Module−8

I2C Vbus = VDD Interface

TMD27721

TMD27723

0x39

Module−8

I2C Vbus = 1.8 V Interface

TMD27723

TMD27725†

0x29

Module−8

I2C Vbus = VDD Interface

TMD27725

TMD27727†

0x29

Module−8

I2C Vbus = 1.8 V Interface

TMD27727

† Contact TAOS for availability.

Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage, VDD (Note 1)

3.8 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−

Digital I/O Voltage (except LDR)

Max LEDA Voltage (TA=0 to 70C, 4.4V otherwise. Note 2)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8 V

Max LDR Voltage (TA=0 to 70C, 4.4V otherwise. Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8 V

Output terminal current (except LDR)

−1 mA to 20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

− °C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† 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 under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. All voltages are with respect to GND.

Recommended Operating Conditions

MIN NOM MAX UNIT

Supply voltage, VDD

3.6

2.5

4.8

Supply voltage accuracy, VDD total error including transients

−3

Operating free-air temperature, TA (Note 2)

−30

NOTE 2: While the device is operational across the temperature range, functionality will vary with temperature. Specifications are stated only

at 25°C unless otherwise noted.

LED Supply Voltage (Max shown for TA=0 to 70C, 4.4V otherwise)

2.2

2. Maximum 4.8V DC over 7 years lifetime.

Maximum 5.0V spikes with up to 250s cumulative duration over 7 years lifetime.

Maximum 5.5V spikes with up to 10s (=1000* 10ms) cumulative duration over 7 years lifetime.

3. Maximum voltage with LDR = off.

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