Programmable Gain Light to Digital Converter AMS TSL25403M for Precise Illuminance Control Applications
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Product Description
Product Overview
The TSL2540 is a highly sensitive light-to-digital converter that provides a digital signal output with direct IC interface capabilities. It features two output channels: a visible channel with a UV and IR blocking filter, and an IR channel with an IR pass filter. Each channel offers a 16-bit output, enabling accurate ambient light measurement for applications such as calculating illuminance to control display backlights. The device offers programmable gain and integration time, reduced power consumption, and operates on a 1.8V power supply with a 1.8V IC bus.
Product Attributes
- Brand: ams OSRAM
- Product Type: ALS, Light-to-Digital Sensor
- Package: 2.0mm x 2.0mm x 0.5mm
Technical Specifications
| Parameter | Min | Typ | Max | Units | Comments |
| Absolute Maximum Ratings | |||||
| VDD Supply voltage | -0.3 | 2.2 | V | All voltages are with respect to GND | |
| VIO Digital I/O terminal voltage | -0.3 | 3.6 | V | ||
| INT, SCL and SDA Iout Output terminal current | -1 | 20 | mA | INT and SDA | |
| Storage temperature range | -40 | 85 | C | ||
| Input current (latch up immunity) | 100 | mA | JEDEC JESD78D Class II | ||
| Electrostatic discharge HBM | 2000 | V | JS-001-2014 | ||
| Electrostatic discharge CDM | 500 | V | JEDEC JESD22-C101F | ||
| Electrical Characteristics | |||||
| VDD Supply voltage | 1.7 | 1.8 | 2.0 | V | |
| Supply voltage accuracy, VDD total error including transients | -3 | 3 | % | ||
| TA Operating free-air temperature | -30 | 85 | C | Specifications are stated at 25C unless otherwise noted. | |
| fOSC Oscillator frequency | 8.107 | MHz | |||
| IDD Supply current Active ALS State | 50 | 150 | A | (PON=AEN=1) | |
| IDD Supply current Idle State | 30 | 60 | A | (PON=1, AEN=0) | |
| IDD Supply current Sleep State | 0.7 | 5 | A | ||
| VOL INT, SDA output low voltage | 0.6 | V | 6mA sink current | ||
| ILEAK Leakage current, INT, SCL and SDA | -5 | 5 | A | ||
| VIH SCL, SDA input high voltage | 1.26 | V | Digital pins are tolerant to a communication voltage up to 3.4V. | ||
| VIL SCL, SDA input low voltage | 0.54 | V | Digital pins are tolerant to a communication voltage up to 3.4V. | ||
| TActive Time from power-on to ready to receive IC commands | 1.5 | ms | |||
| Typical Operating Characteristics | |||||
| Integration time step size | 2.68 | 2.78 | 2.90 | ms | |
| Number of integration steps | 1 | 256 | steps | ||
| Dark ADC count value | 0 | 1 | 3 | counts | Ee = 0 W/cm2; AGAIN = 64x; ATIME = 100ms (0x23) |
| Re Irradiance responsivity Visible Channel | 309 | 363 | 417 | counts/ (W/cm2) | Settings: AGAIN = 16x ATIME = 400ms; White LED, 2700K |
| Re Irradiance responsivity IR Channel | 352 | counts/ (W/cm2) | Settings: AGAIN = 16x ATIME = 400ms; D = 950 nm LED | ||
| Gain scaling, relative to 1x gain setting (AGAIN = 4x) | 4 | x | |||
| Gain scaling, relative to 1x gain setting (AGAIN = 16x) | 16 | x | |||
| Gain scaling, relative to 1x gain setting (AGAIN = 64x) | 67 | x | |||
| Gain scaling, relative to 1x gain setting (AGAIN = 128x) | 140 | x | |||
| ADC noise | 0.005 | % full scale | AGAIN = 16x | ||
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Company
Changsha Purple Horn E-Commerce Co., Ltd.
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Contact Person
Coral