Peak Wavelength
:
Operating Supply Voltage
:
Supply Current
:
Maximum Operating Temperature
: + 85 C
Packaging
: Reel
Minimum Operating Temperature
: - 40 C
Mounting Style
: SMD/SMT
Package / Case
: SOIC-8
Features: `High-Resolution Conversion of Light Intensity to Frequency With No External Components
`Programmable Sensitivity and Full-Scale Output Frequency
`Communicates Directly With a Microcontroller
`High Irradiance Responsivity . . . 830 Hz/(W/cm2) Typical at 640 nm
`Single-Supply Operation . . . 2.7 V to 5.5 V
`Power-Down Feature . . . 5 A Typical
`Nonlinearity Error Typically 0.2% at 100 kHz
`Stable 200 ppm/Temperature Coefficient
`Low-Profile Surface-Mount PackagePinout
SpecificationsSupply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
Input voltage range, all inputs, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to VDD + 0.3 V
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 25 to 70
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 25 to 85
Solder conditions in accordance with JEDEC J-STD-020A, maximum temperature . . . . . . . . . . . . . . . 240
† 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 under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND.
DescriptionThe TSL230RD programmable light-to-frequency converter combines a configurable silicon photodiode and a current-to-frequency converter on single monolithic CMOS integrated circuit. The output can be either a pulse train or a square wave (50% duty cycle) with frequency directly proportional to light intensity. Device sensitivity of TSL230RD is selectable in three ranges, providing two decades of adjustment. The full-scale output frequency can be scaled by one of four preset values. All inputs and the output are TTL compatible, allowing direct two-way communication with a microcontroller for programming and output interface. The output enable (OE) places the output in the high-impedance state for multiple-unit sharing of a microcontroller input line.
The TSL230RD has been temperature compensated for the ultraviolet-to-visible light range of 320 nm to 700 nm and responds over the light range of 320 nm to 1050 nm. TSL230RD is characterized over the temperature range of -25 to 70.
TSL230RD Data Sheet
