ISL29021IROZ-EVALZ datasheet(9/12 Pages) INTERSIL

Part #	ISL29021IROZ-EVALZ

Description	Digital Proximity Sensor with Interrupt Function

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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9 / 12 page

9

FN6732.0

March 3, 2009

Typical Circuit

A typical application for the ISL29021 is shown in Figure 4.

The ISL29021’s I2C address is internally hardwired as

1000100. The device can be tied onto a system’s I2C bus

together with other I2C compliant devices.

Soldering Considerations

Convection heating is recommended for reflow soldering;

direct-infrared heating is not recommended. The plastic

ODFN package does not require a custom reflow soldering

profile, and is qualified to +260°C. A standard reflow

soldering profile with a +260°C maximum is recommended.

FIGURE 3. CURRENT CONSUMPTION FOR EACH INTEGRATION PHASE AND DETECTION CYCLE

IR

PROXIMITY

IR LED

0.4ms

50¬µ

50mA

1mA

360 kHz

1¬µ

30ms

VDDD

1

GND

3

REXT

4

SDA

INT

7

IRDR

8

ISL29021

R1

10k

Ω

R2

10k

Ω

REXT

499k

2.25V TO 3.63V

MICROCONTROLLER

INT

SDA

SLAVE_0

SLAVE_1

I2C SLAVE_n

I2C MASTER

SCL

SDA

SCL

SDA

1.7V TO 3.63V

6

R3

10k

Ω

SCL

2

VDDA

5

C2

0.1¬µ

FIGURE 4. ISL29021 TYPICAL CIRCUIT

SCL

C1

1¬µ

ISL29021

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ISL29021IROZ-EVALZ Datasheet(PDF) 9 Page - Intersil Corporation

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