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Specifications
Mfr. Part #:
TSL237T
Package:
SMD-4P
Key Attributes
Model Number:
TSL237T
Product Description
Product Overview
The TSL237 is a high-sensitivity light-to-frequency converter that integrates a silicon photodiode and a current-to-frequency converter on a single CMOS IC. It outputs a square wave with a frequency directly proportional to light intensity, enabling direct interface with microcontrollers. Features include single-supply operation, stable temperature compensation, a wide input dynamic range, and low dark frequency, making it suitable for applications requiring precise light level detection and measurement across the ultraviolet-to-visible spectrum.
Product Attributes
- Brand: ams OSRAM
- Package: 4-lead surface-mount package (T)
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Operating Free-Air Temperature (TA) | -40 | 85 | C | ||
| Storage Temperature (TSTRG) | -40 | 85 | C | ||
| High-Level Output Voltage (VOH) | IOH = -1mA | 4 | 4.7 | V | |
| Low-Level Output Voltage (VOL) | IOL = 1mA | 0.1 | 0.4 | V | |
| Supply Current (IDD) | 1.6 | 3 | mA | ||
| Full-Scale Frequency | 500 | 1000 | kHz | ||
| Temperature Coefficient of Output Frequency | 600nm, fO = 50kHz | 200 | ppm/C | ||
| Supply Voltage Sensitivity (kSVS) | VDD = 5V 10% | 0.5 | %/V | ||
| Output Frequency (fO) | Ee = 40.4W/cm2 | 40 | 60 | kHz | |
| Dark Frequency (fD) | Ee = 0W/cm2 | 0 | 0.1 | Hz | |
| Dark Frequency (fD) | Ee = 0W/cm2, TA = 50C | 0 | 2 | Hz | |
| Irradiance Responsivity (Re) | p = 640nm | 1.2 | kHz/(W/cm2) | ||
| Nonlinearity | fO = 0kHz to 10kHz | 1 | %F.S. | ||
| Step Response to Full-Scale Step Input | 1 pulse of new frequency plus 1s | ||||
| Time from OE low to output enabled | 1 period of output frequency |
2504101957_AMS-TSL237T_C20557177.pdf
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