IQ Switch
ProxFusion® Series
IQS621 Datasheet
Combination sensor with ambient light sensing (ALS), capacitive proximity/touch, Hall-
effect sensor & inductive sensing capabilities
The IQS621 ProxFusion® IC is a multifunctional, ambient light sensing (ALS), capacitive, Hall-effect
& inductive sensor designed for applications where any or all of the technologies may be required.
The IQS621 is an ultra-low power solution designed for short or long term activations through any of
the sensing channels. The IQS621 is fully I2C compatible.
Features
mobile platforms:
•
Unique combination of sensing
technologies:
o
o
Proximity / Touch
Proximity wake-up
o
o
o
o
Capacitive sensing
Ambient light sensing (ALS)
Hall-effect sensing
•
•
Automatic Tuning
Implementation (ATI) –
performance
Inductive sensing
•
•
Capacitive sensing
enhancement (10bit)
o
o
Full auto-tuning with adjustable sensitivity
2pF to 200pF external capacitive load
capability
Minimal
external
UOLG 2.8 x 2.5 x 0.6
9-pin
components
Standard I2C interface
Representations only
•
•
o
Enhanced temperature stability
Optional RDY indication for event mode
operation
Ambient light sensing (ALS)
o
o
o
o
Absolute lux output
Human eye response compensated
4-bit ALS range output (0 - 10)
Dual threshold detection for day/night
indication with hysteresis
•
Low power consumption:
o
o
o
o
o
o
o
o
o
75uA (100Hz response, 1ch inductive)
95uA (100Hz response, 2ch Hall)
75uA (100Hz response, 3ch capacitive)
60uA (100Hz response, ALS)
25uA (20Hz response, 1ch inductive)
25uA (20Hz response, 2ch Hall)
20uA (20Hz response, 3ch capacitive)
18uA (20Hz response, ALS)
•
Hall-effect sensing
o
o
o
o
On-chip Hall-effect measurement plates
Dual direction Hall switch sensor UI
2 level detection (widely variable)
Detection range 10mT – 200mT
2.5uA (4Hz response, 1ch cap. wake-up)
•
•
Inductive sensing
•
•
Supply voltage: 1.8V to 3.3V
o
2 Level detection and hysteresis for inductive
sensing
Low profile UOLG - 2.8 x 2.5 x 0.6 - 9-pin
package
o
Only external sense coil required (PCB trace)
Multiple integrated UI options based on
years of experience in sensing on fixed and
Applications
• Mobile electronics (phones/tablets)
• Home automation & lighting control
• White goods and appliances
• Wearable devices
• Human Interface Devices
• Aftermarket automotive1
Available Packages
UOLG-2.8 x 2.5 x 0.6–9N
TA
-20°C to +85°C
IQS621
1 The part is not automotive qualified.
Copyright © Azoteq 2018
All Rights Reserved
IQS621 Datasheet revision 1.15
Shortcut to memory map
Page 1 of 79
May 2018