MAX44009 Maxim, MAX44009 Datasheet
MAX44009
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MAX44009 Summary of contents
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... Rev 0; 1/11 General Description The MAX44009 ambient light sensor features an I digital output that is ideal for a number of portable appli- cations such as smartphones, notebooks, and industrial sensors. At less than 1µA operating current the lowest power ambient light sensor in the industry and features an ultra-wide 22-bit dynamic range from 0 ...
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... All Other Pins Short-Circuit Current Duration ............Continuous 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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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ELECTRICAL CHARACTERISTICS (continued 1.8V -40NC to +85NC, unless otherwise noted.) (Note 1) CC MIN MAX PARAMETER SYMBOL TIMING Serial-Clock Frequency Bus Free Time Between a STOP and a START Condition Hold ...
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... Industry’s Lowest-Power Ambient Light Sensor with ADC (V = 1.8V, default power-up setting, unless otherwise noted.) CC SPECTRUM RESPONSE 120 100 MAX44009 RESPONSE 300 400 500 600 WAVELENGTH (nm) SPECTRUM OF LIGHT SOURCES FOR MEASUREMENT 160 140 INCANDESCENT 120 100 300 400 ...
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... INCANDESCENT 150 LAMP 100 50 0 100k 0 50 100 150 200 REFERENCE METER READING (LUX) TOP VIEW SDA SCL 6 5 MAX44009 + GND CC UTDFN-Opto (2mm x 2mm) PIN DESCRIPTION C Clock Bus C Data Bus SDA INT OUTPUT LOW VOLTAGE vs. SINK CURRENT 120 110 100 90 ...
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... The IC can be customized to operate at enhanced sen- sitivity in applications where it needs to operate behind a dark glass. Figure 1. Spectral Sensitivity of the MAX44009 and Human Eye 6 The default integration time of the ADC is 100ms, giving it inherent rejection of 50Hz and 60Hz ripple common in certain line-powered light sources ...
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Table 1. Register Map REGISTER 7 6 STATUS Interrupt Status — — Interrupt Enable — — CONFIGURATION Configuration CONT MANUAL LUX READING Lux High Byte E3 E2 Lux Low Byte — — THRESHOLD SET Upper Threshold UE3 UE2 High Byte ...
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Industry’s Lowest-Power Ambient Light Sensor with ADC Interrupt events set the INTS bit (register 0x00, bit 0) and the INT pin only if the INTE bit is set the INTE bit is set (interrupt is enabled) and ...
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The TIM[2:0] bits can be used to program the signal integration time. In automatic mode (MANUAL = 0), integration time is automatically selected by the on-chip algorithm to be either 100ms/200ms/400ms/800ms. In manual mode, integration time can be varied by ...
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Industry’s Lowest-Power Ambient Light Sensor with ADC BIT 7 BIT 6 BIT 5 — — — Bits in Lux Low-Byte register 0x04 give the 4 least significant bits of the mantissa byte representing the lux reading of ambient light. Combined ...
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... The IC has a user-friendly digital output format. It con- sists of a 4-bit exponent followed by an 8-bit mantissa. In its highest sensitivity mode, 1 count represents 0.045 lux. The mantissa has a maximum value of 255, and the exponent has a maximum value of 14. This gives a maxi- mum range: 255 x 2 maximum lux reading is 188,000 lux ...
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... EEEE 1MMM. Notice that bit M7 (most significant bit) must always The other bits do not matter. EEEE is limited to a maximum value of 1110. The maximum usable setting is a code of 1110 1111. In manual mode (MANUAL = 1), Table 9 gives the range of exponent ( E0) that can be used for each TIM[2:0] and CDR bit setting ...
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Table 9. Recommended Manual Mode Settings for Configuration Register (0x02) and Threshold Registers (0x05, 0x06) APPLICATION CONDITIONS LUX LSB LUX LUX LSB (MIN) (MAX) (MAX) 0.045 2938 11.52 0.09 5875 23.04 0.18 11,750 46.08 0.36 23,501 92.16 0.72 47,002 184.32 ...
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... Industry’s Lowest-Power Industry’s Lowest-Power Ambient Light Sensor with ADC Ambient Light Sensor with ADC READ MAX44009 AMBIENT LUX, SET APPROPRIATE BACKLIGHT STRENGTH WRITE TO UPPER LUX THRESHOLD, LOWER LUX THRESHOLD, AND LUX THRESHOLD TIMER REGISTERS WORK ON TASKS/SLEEP UNTIL WOKEN BY HARDWARE INTERRUPT ...
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I C Serial Interface The IC features C/SMBus™-compatible, 2-wire serial interface consisting of a serial-data line (SDA) and a serial-clock line (SCL). SDA and SCL facilitate com- munication between the IC and the master at clock ...
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Industry’s Lowest-Power Ambient Light Sensor with ADC S SR SCL SDA Figure 4. START, STOP, and Repeated START Conditions The slave address is controlled by the A0 pin. Connect A0 to either ground set the address. Table ...
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... Ambient Light Sensor with ADC ACKNOWLEDGE FROM MAX44009 0 A REGISTER ADDRESS ACKNOWLEDGE FROM MAX44009 REGISTER ADDRESS A Sr SLAVE ADDRESS REPEATED START ACKNOWLEDGE FROM MAX44009 REGISTER ADDRESS SLAVE ADDRESS REPEATED START ACKNOWLEDGE FROM MAX44009 ACKNOWLEDGE FROM MAX44009 REGISTER ADDRESS SLAVE ADDRESS ...
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... CC SCL GND A0* INT MAX44009 *DEVICE ADDRESS IS 1001 010x. CONNECT FOR SLAVE ADDRESS 1001 011x. CC SEE THE PIN DESCRIPTION. 18 2mm 1 MAX44009 TOP VIEW 0.75mm 0.24mm CENTER OF MAX44009 2 0.13mm 0.88mm 0.12mm 0.25mm 3. 10kI 10kI 10kI SDA SCL SLAVE_n ...
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... For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. ...
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... Initial release Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ...