isl29028a Intersil Corporation, isl29028a Datasheet
isl29028a
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isl29028a Summary of contents
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... The user may also require that both ALS/prox interrupts occur at once times in a row before activating the interrupt pin. The ISL29028A is designed to operate from 2.25V to 3.63V over the -40°C to +85°C ambient temperature range packaged in a clear, lead-free 8 lead ODFN package. ...
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... 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. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL29028A. For more information on MSL, please see Technical Brief TB363. ...
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... DATA Prox Measurement Result PROX_1 t Rise Time for IRDR Sink Current r t Fall time for IRDR Sink Current f 3 ISL29028A Thermal Information (T = +25 C) ° A Thermal Resistance (Typical ODFN Package (Notes Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +90°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +100°C Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40° ...
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... Hold Time (Repeated) START Condition HD:STA t LOW Period of the SCL Clock LOW t HIGH period of the SCL Clock HIGH t Set-up Time for a Repeated START Condition SU:STA 4 ISL29028A = 3.0V +25° 499k Ω 1% tolerance. (Continued) A EXT PROX_DR = 0; V PROX_DR = 1; V PROX_EN = 0; V Register bit PROX_DR = 0 ...
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... Noise Margin at the HIGH Level nH NOTES: 2 13. All parameters Electrical Specifications table are guaranteed by design and simulation. 14 the capacitance of the bus in pF. 5 ISL29028A For SCL and SDA unless otherwise noted, V CONDITION (Note 14) (Note 14) Maximum is determined FIGURE TIMING DIAGRAM = 3V +25° ...
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... RW 0x00 (ALS Range) ALSIR_MODE 0 RW 0x00 (ALSIR Mode) 6 ISL29028A 2 C. Registers 0x1 and 0x2 define the operation mode of the device. Registers 0x3 through 0x7 TABLE 1. ISL29028A REGISTERS AND REGISTER BITS BIT (Reserved) PROX_SLP[2:0] PROX_DR PROX_PRST[1:0] (Write 0) ALS_FLAG PROX_LT[7:0] ...
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... DEFAULT 7:0 RO 0x00 7 ISL29028A When = 0, no Prox interrupt event has occurred since power-on or last “clear” When = 1, a Prox interrupt event occurred. Clearable by writing “0” For bits 6:5 = (see the following) 00; set PROX_FLAG if 1 conversion result trips the threshold value 01; set PROX_FLAG if 4 conversion results trip the threshold value 10 ...
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... Photodiodes and ADCs The ISL29028A contains two photodiode arrays which convert photons (light) into current. The ALS photodiodes are constructed to mimic the human eye’s wavelength response curve to visible light (see Figure 6). The ALS photodiodes’ current output is digitized by a 12-bit ADC in 100ms. These 12 bits can be accessed by reading ...
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... When proximity sensing is enabled, the IRDR pin will drive a user-supplied infrared LED, the emitted IR reflects off an object (i.e., a human head) back into the ISL29028A, and a sensor converts the reflected IR wave to a current signal in 0.54ms. The ADC subtracts the IR reading before and after the LED is driven (to remove ambient IR such as sunlight), and converts this value to a digital count stored in Register 0x8 ...
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... ISL29028A Power-Down To put the ISL29028A into a power-down state, the user can set both PROX_EN and ALS_EN bits Register 1. Or more simply, set all of Register 1 to 0x00. Calculating Lux The ISL29028A’s ADC output codes are directly proportional to lux when in ALS mode (see ALSIR_MODE bit). α ...
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... Typical Circuit A typical application for the ISL29028A is shown in Figure 5. The 2 ISL29028A’ address is internally hardwired as 0b100010<x>, with x representing the logic state of input I address pin ADDR0. The device can be tied onto a system’ bus together with other I C compliant devices. ...
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... REFLECTOR (USING ISL29028 EVALUATION BOARD) 12 ISL29028A V = 3.0V 499k DD EXT 1.0 FLUORESCENT 0.9 0.8 0.7 0.6 HALOGEN INCAND. 0.5 0.4 0.3 0.2 0.1 0.0 750 950 FIGURE 7. ISL29028A SENSITIVITY TO DIFFERENT 2500 2000 1500 1000 500 FIGURE 9. ALS LINEARITY OVER 3 LIGHT SOURCES (2000 LUX 160 140 120 100 120 140 160 180 200 FIGURE 11. V Ω ...
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... V (V) IRDR FIGURE 12. IRDR PULSE AMPLITUDE vs V FIGURE 14. STABILITY OF ALS COUNT OVER TEMP (AT 0.00 LUX) 13 ISL29028A V = 3.0V 499k DD EXT -10 -20 -30 -40 3.0 3.5 4.0 4.5 5.0 -50 FIGURE 13. STABILITY OF ALS COUNT OVER TEMP (AT 300 LUX) ...
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... FIGURE 15 ODFN SENSOR LOCATION OUTLINE - DIMENSIONS ISL29028A 2.10 0. 0.50 5 FN7721.2 March 24, 2011 ...
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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 15 ISL29028A www.intersil.com/askourstaff http://rel.intersil.com/reports/sear For additional products, see www ...
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... Package Outline Drawing L8.2.1x2.0 8 LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 3, 1/11 2.10 6 PIN 1 INDEX AREA (2X) 0.10 TOP VIEW 2.50 2.10 (6x0.50) (8x0.20) (8x0.55) (0.75) TYPICAL RECOMMENDED LAND PATTERN 16 ISL29028A A 0.15 B 0.25 0.50 1.50 2. ± BOTTOM VIEW 0.70±0.05 SIDE VIEW (1.50 REF C (8x0.20) DETAIL "X" NOTES: 1. ...