AVAGO APDS-9800 DATA SHEET
APDS-9800
Integrated Ambient Light and Proximity Sensor
Data Sheet
Description
The APDS-9800 integrates ambient light sensor (ALS),
proximity sensor (PS) and ambient light cancelation
functions in a single module. The module contains three
chips in one small package: an ambient light sensor
IC, a proximity sensor signal conditioning circuit and a
proximity sensor that includes both an LED emitter and
detector.
The ambient light sensor has a spectral response close to
the CIE standard photopic observer and a current output.
The proximity sensor signal conditioning circuit has an
LED driver and a receiver circuit that has both analog and
digital outputs. With the built-in LED, the proximity sensor
is able to sense the proximity of an object, such as a finger,
hand or head that is close to a portable device. The PS also
features an excellent ambient light cancellation circuit for
operation in direct sunlight.
By detecting the ambient light illuminance level, the
ambient light sensor can control the brightness of display
backlights.
The proximity sensor makes many interesting and useful
applications possible. For example, a proximity sensor
can detect the proximity of a mobile phone user’s head
and turn off or on the phone keypad and LCD backlight.
By combining an ambient light sensor and proximity
sensor in a single compact module, mobile phones, PDAs
and notebooks can have additional features or benefit
from increased performance, such as in battery life.
Features
• Integrated module with ambient light sensor, proximity
sensor and signal conditioning IC
• Small form factor: L 4.95 x W 3.0 x H 1.45 mm
• Supply voltage range: 2.4 V to 3.6 V
• Spectral responsivity closely matches the human eye
• Built-in LED and detector for proximity detection
• Low sensitivity variation across various light sources
• Linear output across a wide illumination range
• Operates under strong sunlight and artificial light
• Controlled LED driving current, pulse and burst
parameters
• Controlled output voltage and integration time with
an external resistor and capacitor
• LED stuck High protection
• Both analog and digital outputs available
• Shutdown mode for low current consumption
• Lead-free and RoHS compliant
Applications
• PDAs
• Mobile phones
• Portable and handheld devices
• Personal computers, netbooks and notebooks
• Amusement products
• Games
• Vending Machines
Functional Block Diagram
(7) ALS_IOUT
(2) LEDON
(3) PS_DOUT
Ambient Light
Sensor
LED Driver with
Stuck High Protection
Cancellation
V-I Converter
Hysteresis
Comparator
Proximity Sensor ASIC
(4) Vcc
Sunlight
TIA
(10) LEDK
(1) NC
LED
(5) NC
PIN
(6) PS_PFILT
(9) PS_ENB
(8) GND
I/O Pins Configuration Table
Pin Symbol Type Description
1 NC – No Connection
2 LEDON Digital I/P LED Driver Input
LEDA will turn off when LEDON is stuck in high state for > Max-PW
3 PS_DOUT Digital O/P PS Digital Output
(Open drain output that requires a pull-up resistor of recommended value 10kΩ)
PS_DOUT = LOW when PS_VPFILT > VTH
PS_DOUT = HIGH when PS_VPFILT < VTH
4 Vcc Supply Voltage Supply
5 NC – No Connection
6 PS_PFILT Analog O/P PS Analog Output
Connect to integration circuit (R3 and C3)
7 ALS_IOUT Analog O/P ALS analog current output
Connect to external load resistor R4. Recommended value 1kΩ.
8 GND Ground Ground
9 PS_ENB Digital I/P PS Power Down Enable
ENB = 0 Normal mode operation, ENB = 1 Shut down mode
10 LEDK Analog O/P Connect to Cathode of LED (proximity sensor)
External current limiting resistor is used to control current flow in the LED
2
Ordering Information
Part Number Packaging Quantity
APDS-9800-021 Tape & Reel 2500 per reel
Absolute Maximum Ratings
Parameter Symbol Min. Max. Units Conditions
Supply Voltage V
Input Logic Voltage VI 0 4 V TA = 25°C
Reflow Soldering Temperature 260 °C
CC
0 4 V TA = 25°C
Recommended Operating Conditions
Parameter Symbol Min. Max. Units Conditions
Operating Temperature T
Storage Temperature T
Supply Voltage V
A
S
CC
-40 85 °C
-40 85 °C
2.4 3.6 V
3
Electrical & Optical Specifications (Ta=25°C)
Parameters Symbol Minimum Typical Maximum Units Conditions
ALS+PS Module
Shutdown Current I
SD
Idle Current Icc 325 500 675 μA Vcc = 3 V, PS_ENB = 0 V, Lux = 0
ALS Output
Photo Current I_PH1 15 26 – μA Vcc =3 V, Lux = 100
Dark Current I_DARK – 300 – nA Vcc = 3 V, Lux = 0
Light Current Ratio – 1.2 – – Incandescent / Fluorescent
Rise Time Tr – 5 – ms R4 = 1k Ω, Lux = 100
Fall Time Tf – 5 – ms R4 = 1k Ω, Lux = 100
Propagation delay Td – 5 – ms R4 = 1k Ω, Lux = 100
Saturation voltage Vsat 1.0 – – V R4 = 150k Ω, Vcc = 3 V, Lux = 100
PS Input
Logic High Voltage, LEDON V
Logic High Voltage, PS_ENB V
Logic Low Voltage, LEDON V
Logic Low Voltage, PS_ENB V
Logic High Input Current, LEDON I
Logic High Input Current, PS_ENB I
Logic Low Input Current, LEDON I
Logic Low Input Current, PS_ENB I
IH
IH
IL
IL
IH
IH
IL
IL
PS Output
Analog Output VPFILT 0.65 1.9 3.0 V VCC = 3 V, ENB = 0 V,
Digital Output Low Level, PS_DOUT V
OL
Crosstalk VPFILT
@
Crosstalk
Max I
I
Pulse Width Max-PW – 120 – μs Vcc = 3 V, PS_ENB = 0 V
LED
Pulse Current I
LED
LED
Transmitter
Rise Time (LEDA) T
Fall Time (LEDA) T
R
F
PS Receiver
Rise Time(PS_DOUT) T
Fall Time(PS_DOUT) T
R
F
PS Hysteresis Comparator
Hysteresis V
Threshold Voltage V
HYS
TH
PS Sunlight Cancellation
Sun Light Illuminance Isun 100K Lux Vcc= 3 V
Note:
1. White LED is used as light source.
– 0.3 1 μA Vcc = 3 V, PS_ENB = 3 V, Lux = 0
(1)
1.8 – – V
1.8 – – V
0 – 0.3 V
0 – 0.3 V
– 0.1 1 μA VI ≥ V
– 0.1 1 μA VI ≥ V
– 0.1 1 μA VI ≤ V
– 0.1 1 μA VI ≤ V
0 – 0.4 V
IH
IH
IL
IL
LEDON = 10k Hz, 50% DC,
50 pulses; R3 = 1M ohm,
C3 = 3.3 nF;
Kodak 18% Grey card at
detectable distance = 20 mm
from the APDS-9800.
0 – 0.2 V VCC = 3 V, ENB = 0 V,
LEDON = 10k Hz, 50% DC,
50 pulses; R3 = 1M ohm,
C3 = 3.3 nF;
No blocking object
– 120 – mA Vcc = 3 V, R1 = 10 Ω
– 40 – ns Vcc = 3 V , ILED = 120 mA,
– 40 – ns
Freq = 10k Hz
– 1 – μs Vcc = 3 V, R2 = 10k Ω,
– 1 – μs
Frequency = 10k Hz
– 40 – mV Vcc= 3 V
– 655 – mV Vcc= 3 V
4
Loading...