Product Overview
The TSL2521 is a highly sensitive ambient light sensor with selective flicker detection and fast sampling capabilities. It is designed for brightness control and as an auxiliary sensor for cameras. The device offers two concurrent ambient light sensing channels, programmable multiplexer, and integrates infrared and clear photodiodes with a UV/IR blocking filter for accurate ambient light measurement and irradiance calculation. It also features on-chip ambient light flicker detection, executed in parallel with ALS sensing, allowing for flicker frequency calculation on a host CPU. Its low-profile, small footprint OLGA package makes it suitable for space-constrained applications.
Product Attributes
- Brand: ams OSRAM
- Product Name: TSL2521
- Package Type: OLGA
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Unit | Comments |
| Absolute Maximum Ratings | ||||||
| VDD Supply voltage | -0.3 | 1.98 | V | |||
| VIO Digital I/O terminal voltage | -0.3 | 3.6 | V | |||
| IIO Output terminal current | -1 | 20 | mA | |||
| ESDHBM HBM electrostatic discharge | ANSI/ESDA/JEDEC JS-001-2017 | 2000 | V | |||
| ESDCDM CDM electrostatic discharge | ANSI/ESDA/JEDEC JS-002-2018 | 500 | V | |||
| ISCR Input current (latch-up immunity) | JEDEC JESD78E Class II | 100 | mA | |||
| Storage temperature range | -40 | 85 | C | |||
| Operating temperature range | -30 | 85 | C | |||
| Package body temperature | IPC/JEDEC J-STD-020 | 260 | C | Reflow peak soldering temperature | ||
| Relative humidity (non-condensing) | 85 | % | ||||
| Moisture sensitivity level | 3 | Max floor life 168h | ||||
| Optical Characteristics | ||||||
| Dark ADC count value | Ee = 0W/cm2, ALS gain: 512x, Integration time: 98ms | 0 | 1 | 3 | counts | (1) |
| Clear channel irradiance responsivity | White LED, 2700K (3) | 248 | 292 | 336 | counts/ (W/cm2) | |
| IR channel irradiance responsivity | IR LED = 940nm (5) | 57 | ||||
| ADC noise | White LED, 2700K (3), Integration time: 100ms | 0.05 | (4) | |||
| IR/Clear channel ratio | White LED, 2700K (3) | 1 | % | |||
| Electrical Characteristics | ||||||
| VDD Supply voltage | 1.7 | 1.8 | 1.98 | V | ||
| VDD/IO I/O supply voltage | 1.62 | 1.8 | 3.3 | V | ||
| Operating free-air temperature | (1) | -30 | 25 | 85 | C | |
| ALS supply current | Active ALS state (PON=AEN=1) (1) | 140 | 195 | 250 | A | |
| Idle current | Idle state (PON=1, AEN=0, FDEN=0) (2) | 60 | A | |||
| Sleep current | Sleep state (3) | 0.7 | 5 | A | ||
| Leakage current | Measured on SDA, SCL, INT, GPIO | -5 | 5 | A | ||
| INT, SDA, GPIO output low voltage | 6mA sink current | 0.4 | V | |||
| SCL, SDA, VSYNC input high voltage | 1.26 | V | ||||
| SCL, SDA, VSYNC input low voltage | 0.54 | V | ||||
| Input pin capacitance | 10 | pF | ||||
| Time from power-on to ready to receive I2C commands | 0.5 | ms | tActive | |||
| Timing Characteristics | ||||||
| IC clock frequency | 0 | 400 | kHz | fSCL | ||
| Bus free time between start and stop condition | 1.3 | s | tBUF | |||
| Hold time after (repeated) start condition | 0.6 | s | tHD;STA | |||
| Repeated start condition setup time | 0.6 | s | tSU;STA | |||
| Stop condition setup time | 0.6 | s | tSU;STO | |||
| SCL clock low period | 1.3 | s | tLOW | |||
| SCL clock high period | 0.6 | s | tHIGH | |||
| Data hold time | 0 | ns | tHD;DAT | |||
| Data setup time | 100 | ns | tSU;DAT | |||
| Clock/data fall time | 300 | ns | tF | |||
| Clock/data rise time | 300 | ns | tR | |||
2411261545_AMS-TSL25213M_C17407882.pdf
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