ISL76683AROZ-T7 Intersil, ISL76683AROZ-T7 Datasheet

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ISL76683AROZ-T7

Manufacturer Part Number
ISL76683AROZ-T7
Description
DIGITAL LIGHT SENSOR ADC 6ODFN
Manufacturer
Intersil
Datasheet

Specifications of ISL76683AROZ-T7

Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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ISL76683AROZ-T7
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Light-to-Digital Output Sensor with Gain Selection,
Interrupt Function and I
ISL76683
The ISL76683 is an integrated light sensor with an internal
integrating ADC intended for automotive applications. The ADC
provides 16-bit resolution and is capable of rejecting 50Hz and
60Hz flicker caused by artificial light sources. The I
provides four user programmable lux sensitivity ranges for
optimized counts/lux in a variety of lighting conditions. In
addition, the I
sensor and remote monitoring capabilities.
In normal operation, power consumption is less than 300µA.
Furthermore, a software power-down mode controlled via the I
interface reduces power consumption to less than 1µA.
The ISL76683 supports twin (upper & lower) user programmed
thresholds and provides a hardware interrupt that remains
asserted low until the host clears it via the I
Designed to operate on supplies from 2.5V to 3.3V, the ISL76683 is
qualified to AECQ100 and specified for operation over the -40°C to
+105°C (grade 2) ambient temperature range. To achieve this, the
ISL76683 is packaged in a special extended temperature clear
package.
March 17, 2011
FN7697.2
2
C interface provides multi-function control of the
1
PHOTODIODE 1
PHOTODIODE 2
REXT
3
2
C control interface.
MUX
2
FOSC
IREF
C interface
FIGURE 1. BLOCK DIAGRAM
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
VDD
2
1
C Interface
1-888-INTERSIL or 1-888-468-3774
INTEGRATING
2
COUNTER
C
ADC
2
GND
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
ISL76683
16
2
EXT
TIMING
Features
• Range select via I
• Human Eye Response (540nm Peak Sensitivity)
• Temperature Compensated
• 16-bit Resolution
• Adjustable Sensitivity: up to 65 Counts per Lux
• User-programmable Upper and Lower Threshold Interrupt
• Simple Output Code, Directly Proportional to Lux
• IR + UV Rejection
• 50Hz/60Hz Rejection
• 2.5V to 3.3V Supply
• 6 Ld ODFN (2.1mmx2mm)
• Pb-free (RoHS compliant)
Applications
• Automotive Ambient Light Sensing
• Backlight Control
• Lighting Controls
- Range 1 = 0 lux to 1000 lux
- Range 2 = 0 lux to 4000 lux
- Range 3 = 0 lux to 16,000 lux
- Range 4 = 0 lux to 64,000 lux
All other trademarks mentioned are the property of their respective owners.
INT
INTERRUPT
COMMAND
REGISTER
REGISTER
|
2
Copyright Intersil Americas Inc. 2011. All Rights Reserved
C
DATA
I
2
C
5
6
4 INT
SCL
SDA

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ISL76683AROZ-T7 Summary of contents

Page 1

... GND ISL76683 FIGURE 1. BLOCK DIAGRAM CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 Intersil (and design trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners COMMAND REGISTER DATA ...

Page 2

... SDA I C serial data Ordering Information PART NUMBER (Notes ISL76683AROZ-T7 NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 ...

Page 3

... Thermal Resistance (Typical ODFN Package (Notes Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+105°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C DD Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 3V +25° 100k Ω 1% tolerance, unless otherwise specified, Internal Timing Mode A EXT CONDITION Software disabled, -40° ...

Page 4

Electrical Specifications V DD Operation (see “Principles of Operation” on page 6). (Continued) PARAMETER DESCRIPTION I SDA Current Sinking Capability SDA I INT Current Sinking Capability INT NOTES: 6. Compliance to datasheet limits is assured by one or more methods: ...

Page 5

Typical Performance Curves 1.015 1.010 5000 lux 1.005 1.000 200 lux 0.995 0.990 2.0 2.3 2.6 2.9 SUPPLY VOLTAGE (V) FIGURE 6. OUTPUT CODE vs SUPPLY VOLTAGE 330 320 310 300 290 280 270 260 -60 ...

Page 6

Principles of Operation Photodiodes The ISL76683 contains two photodiodes. Diode1 is sensitive to both visible and infrared light, while Diode2 is mostly sensitive to infrared light. The spectral response of the two diodes are independent from one another. See Figure ...

Page 7

Start DEVICE ADDRESS DATA SDA SDA SDA DRIVEN BY MASTER Out CLK ...

Page 8

Register Set There are eight registers that are available in the ISL76683. Table 1 summarizes the available registers and their functions. ADDR REGISTER (HEX) NAME BIT(S) 00 Command 01 Control 02 Interrupt Threshold HI 03 Interrupt Threshold LO 04 LSB_Sensor ...

Page 9

TABLE 2. WRITE ONLY REGISTERS REGISTER ADDRESS NAME b1xxx_xxxx sync_iic Writing a logic 1 to this address bit ends the current ADC-integration and starts another. Used only with External Timing Mode. bx1xx_xxxx clar_int Writing a logic 1 to this address ...

Page 10

Range/Gain; Bits 3 and 2. The Full Scale Range can be adjusted by an external resistor R EXT 2 adjusted via I C using the Gain/Range function. Gain/Range has four possible values, Range(k) where through 4. ...

Page 11

Gain/Range, Range (k) The Gain/Range can be programmed in the control register to give Range (k) determining the FSR. Note that Range(k) is not the FSR (see Equation 3). Range(k) provides four constants depending on programmed k that will be ...

Page 12

INTEGRATION TIME IN EXTERNAL TIMING MODE This timing mode is programmed in the command register 00(hex) bit 5. External Timing Mode is recommended when integration time can be synchronized to an external signal (such as a PWM) to eliminate noise. ...

Page 13

1,000 I C clock cycles. An external sync_iic command sent I C 1,000 cycles after another sync_iic command rejects both 60Hz and 50Hz AC noise signals. Next, is ...

Page 14

... Since ambient light sensor devices do not dissipate high power, heat dissipation through the exposed pad is not important; instead, similar to DFN or QFN, the exposed pad provides robustness in board mount process. Intersil recommends mounting the exposed pad to the PCB, but this is not mandatory. ...

Page 15

TO 3. SLAVE_0 1 VDD SDA 2 GND SCL REXT 4.7µF 0.1µF REXT ISL76683 100k 15 ISL76683 10k 10k RES1 SLAVE_1 6 SDA 5 SCL 4 INT ...

Page 16

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. ...

Page 17

Package Outline Drawing L6.2x2.1 6 LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 2, 6/10 2.10 6 PIN 1 INDEX AREA (4X) 0.10 TOP VIEW 2.50 PACKAGE OUTLINE 2.10 0.65 (4x0.65) (6x0.30) (6x0.55) TYPICAL RECOMMENDED LAND PATTERN 17 ISL76683 ...

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