TSL25913FN

Light-to-digital converter

The TSL25913FN is a light-to-digital converter from ams-OSRAM. View the full TSL25913FN datasheet below including electrical characteristics, absolute maximum ratings.

Manufacturer

ams-OSRAM

Overview

Part: ams TSL2591

Type: Light-to-digital converter

Description: A very-high sensitivity light-to-digital converter with dual photodiodes, a 600M:1 dynamic range, programmable analog gain and integration time, and an I2C Fast Mode compatible interface, capable of a 3.0 μA sleep state.

Operating Conditions:

Supply voltage: 2.7–3.6 V
Operating free-air temperature: -30 to 70 °C
I2C clock frequency: 0–400 kHz

Absolute Maximum Ratings:

Max supply voltage: 3.8 V
Max output terminal current: 20 mA
Max storage temperature: -40 to 85 °C

Key Specs:

Supply Current (Active): 275 μA (Typ, VDD=3V, TA=25°C, no I2C activity)
Supply Current (Sleep): 2.3 μA (Typ, VDD=3V, TA=25°C)
I2C Clock frequency: 400 kHz (Max)
Dynamic Range: 600M:1
Programmable Analog Gain: 1×, 25×, 428×, 9876×
ADC integration time step size: 101 ms (Typ, ATIME=000b)
Dark ADC count value: 25 counts (Max, Ee=0, ATIME=100ms)
INT, SDA output low voltage: 0.4 V (Max, 3mA sink current)

Features:

Approximates Human Eye Response
Dual Diode
Programmable Analog Gain and Integration Time
600M:1 Dynamic Range
Two Internal Interrupt Sources
Programmable Upper and Lower Thresholds
One Interrupt Includes Programmable Persistence Filter
User Selectable Sleep Mode
I2C Fast Mode Compatible Interface
Data Rates up to 400 kbit/s
Input Voltage Levels Compatible with 3.0V Bus

Applications:

Approximates human eye response for illuminance (lux) derivation
Suited for operation behind dark glass

Package:

ODFN-6

Pin Configuration

Package FN Dual Flat No-Lead (Top

View): Package drawing is not to scale.

Figure TSL2591 - 4: Pin Description

Pin Number	Pin Name	Description
1	SCL	I 2 C serial clock input terminal
2	INT	Interrupt -opendrain output (active low).
3	GND	Power supply ground. All voltages are referenced to GND.
4	NC	No connect -donotconnect.
5	V DD	Supply voltage
6	SDA	I 2 C serial data I/O terminal

Figure TSL2591 - 4: Pin Description

Electrical Characteristics

Figure TSL2591 - 7:

Recommended Operating Conditions

Symbol	Parameter	Min	Typ	Max	Units
V DD	Supply voltage	2.7	3	3.6	V
T A	Operating free-air temperature	-30		70	°C

Figure TSL2591 - 8:

Operating Characteristics, V DD =3V, T A =25°C (unless otherwise noted)

Symbol	Parameter	Conditions	Min	Typ	Max	Units
I DD	Supply Current	Active Sleep state - no I 2 C activity		275 2.3	325 4	μ A
V OL	INT, SDA output low voltage	3mAsink current 6mAsink current	0 0		0.4 0.6	V
I LEAK	Leakage current, SDA, SCL, INT pins		-5		5	μ A
V IH	SCL, SDA input high voltage		0.7 V DD			V
V IL	SCL, SDA input low voltage				0.3 V DD	V

All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods.

Figure TSL2591 - 9:

ALS Characteristics, V DD =3V, T A =25°C, AGAIN = Max, AEN=1, (unless otherwise noted) (Notes 1, 2, 3),

Parameter	Conditions	Channel	Min	Typ	Max	Units
Dark ADC count value	E e = 0, ATIME=000b (100ms)	CH0 CH1	0 0		25 25	counts
ADC integration time step size	ATIME = 000b (100ms)		95	101	108	ms
ADC number of integration steps (Note 4)			1		6	steps
ADC counts per step	ATIME = 000b (100ms)		0		37888	counts
ADC count value	ATIME = 101b (600ms)		0		65535	counts
ADC count value	White light (Note 2) E e = 4.98 μW/cm 2 ATIME = 000b (100 ms)	CH0 CH1	25500	30000 4996	34500	counts
ADC count value	λ p = 850 nm(Note 3) E e = 5.62 μW/cm 2 , ATIME = 000b (100 ms)	CH0 CH1	25500	30000 19522	34500	counts
ADC count value ratio: CH1/CH0	White light (Note 2)		0.116	0.166	0.216
ADC count value ratio: CH1/CH0	λ p = 850 nm(Note 3)		0.456	0.652	0.848
R e Irradiance responsivity	White light (Note 2) ATIME = 000b (100 ms)	CH0 CH1		6024 1003		counts/ (μW/cm 2 )
R e Irradiance responsivity	λ p = 850 nm(Note 3) ATIME = 000b (100 ms)	CH0 CH1		5338 3474		counts/ (μW/cm 2 )
Noise (Note 4)	White light (Note 2) E e = 4.98 μW/cm 2 ATIME = 000b (100 ms)	CH0		1	2	1standard deviation
Gain scaling, relative to 1×gain setting	AGAIN = Low AGAIN = Med AGAIN = High AGAIN = Max			1 25 428 9876		×

Absolute Maximum Ratings

Figure TSL2591 - 6:

Absolute Maximum Ratings

Parameter	Min	Max	Units	Comments
Supply voltage, V DD		3.8	V	All voltages are with respect toGND
Input terminal voltage	-0.5	3.8	V
Output terminal voltage	-0.5	3.8	V
Output terminal current	-1	20	mA
Storage temperature range, T stg	-40	85	°C
ESD tolerance, human body model		2000	V

Typical Application

Figure TSL2591 - 17:

Typical Application Hardware Circuit

The I 2 C signals and the Interrupt are open-drain outputs and require pull-up resistors. The pull-up resistor (RP) value is a function of the I 2 C bus speed, the I 2 C bus voltage, and the capacitive load. The ams EVM running at 400 kbps, uses 1.5-kΩ resistors. A 10-kΩ pull-up resistor (RPI) can be used for the interrupt line.

Figure TSL2591 - 17 shows a typical hardware application circuit. A 1-μF low-ESR decoupling capacitor should be placed as close as possible to the V DD pin. V BUS in this figure refers to the I 2 C bus voltage, which is equal to V DD .

Package Information

Figure TSL2591 - 19: FN Package - Dual Flat No-Lead Packaging Configuration

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
TSL2591	ams-OSRAM	—
TSL25911FN	ams-OSRAM	—

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