ISL29021 Intersil Corporation, ISL29021 Datasheet
ISL29021
Related parts for ISL29021
ISL29021 Summary of contents
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... I C interface for proximity detection. Designed to operate on supplies from 2.5V to 3.63V, the ISL29021 is specified for operation over the -40°C to +85°C ambient temperature range packaged in a clear, Pb-free 8 Ld ODFN package. Ordering Information PART NUMBER TEMP ...
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... EXPOSED PAD CAN BE CONNECTED TO GND OR ELECTRICALLY ISOLATED 2 The I C bus lines can be pulled from 1.7V to above VDDA 2 IR DATA INTEGRATION PROCESS ADC ARRAY IREF FOSC 3 4 REXT GND ISL29021 8 IRDR 7 INT 6 SDA 5 SCL DESCRIPTION , 3.63V max. DD VDDD 1 COMMAND REGISTER DATA REGISTER SDA 6 ...
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... Rise Time for IRDR Source Current tf Fall Time for IRDR Source Current f IR LED Modulation Frequency IRLED1 f IR LED Modulation Frequency IRLED2 3 ISL29021 (T = +25°C) Thermal Information A and GND . . . . . .4V Thermal Resistance (Typical, Note 1) DD and GND . . . . V +/- 0.5V DDD Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +90°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-40° ...
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... Low-Power Operation The ISL29021 initial operation is at the power-down mode after a supply voltage is provided. The data registers contain the default value of 0. When the ISL29021 receives an I command one-time measurement from will start ADC conversion with proximity sensing. It will go to ...
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... I C Interface There are eight 8-bit registers available inside the ISL29021. The two command registers define the operation of the device. The command registers do not change until the registers are www.datasheet4u.com overwritten. The two 8-bit data Read Only registers are for the ADC output and the Timer output ...
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... Register Set There are eight registers that are available in the ISL29021. Table 1 summarizes their functions. ADDR REG NAME 7 00h COMMANDI OP2 www.datasheet4u.com 01h COMMANDII 1 02h DATA D7 LSB 03h DATA D15 MSB 04h INT_LT_LSB TL7 05h INT_LT_MSB TL15 06h INT_HT_LSB TH7 07h ...
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... ADC Output in IR Sensing The ISL29021’s ADC output codes, DATA, are directly proportional to the IR intensity received in the IR sensing. DATA IR ...
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... ISL29021 LED Modulation for Proximity Detection ISL29021 offers two ways to modulate the LED in the (EQ. 5) Proximity Detection mode - DC or 360kHz (with 50% duty cycle) by bit 6 of register 01h. At the IRDR pin, there are four different IRDR LED currents; 12.5, 25, 50, and 100mA outputs selectable by bits 4 and 5 of register 01h ...
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... Typical Circuit A typical application for the ISL29021 is shown in Figure 4. 2 The ISL29021’ address is internally hardwired as 1000100. The device can be tied onto a system’ together with other I C compliant devices. www.datasheet4u.com IR 0.4ms PROXIMITY IR LED FIGURE 3. CURRENT CONSUMPTION FOR EACH INTEGRATION PHASE AND DETECTION CYCLE 2 ...
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... DISTANCE (mm) FIGURE 8. ADC OUTPUT vs DISTANCE WITH DIFFERENT OBJECTS IN PROXIMITY SENSING 350 300 PIG'S SKIN 250 4mm CENTER-TO-CENTER FOR ISL29021 AND SFH4650, 200 ISOLATED BY BARRIER AND BEHIND A 65% 150 IR TRANSMITTING GLASS 18% GRAY 130 CTS = 500 CTS x 65% x 65% 100 = 211 CTS ...
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... 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. For information regarding Intersil Corporation and its products, see www.intersil.com 11 ISL29021 3V 499kΩ ...
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... LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 0, 10/08 2.10 www.datasheet4u.com 6 PIN 1 INDEX AREA (2X) 0.10 TOP VIEW (6x0.50) (8x0.20) (8x0.55) (0.75) TYPICAL RECOMMENDED LAND PATTERN 12 ISL29021 A B 0.50 2.00 1. ± 0.70±0.0 (1.50 REF NOTES: 1. Dimensions are in millimeters. Dimensions Dimensioning and tolerancing conform to AMSE Y14.5m-1994. ...