IQ Switch
®
ProxSense
®
Series
Copyright © Azoteq (Pty) Ltd 2017
IQS211EV02 Quick start guide
Page 2 of 2
All Rights Reserved.
Revision 1.2
April 2017
Figure 2.1
IQS211A reference design (Ultra-low power)
3
Default UI
Different UI
’s can be selected in the IQS211A GUI and can then be selected to run in
standalone mode.
The GUI is available for download from the Software & Tools section of
azoteq.com
and the
CT210
(sold separately) is used in conjunction with the GUI to select the different UI
’s and
settings.
Using
USBProg
the IQS211A can be configured in different variations. Please note when
settings are programmed it is permanent.
GND
C1
1uF
GND
C2
100pF
C4
100pF
C3
1uF
GND
VDDHI
GND
VREG
CX
R1
470R
IO1/SCL/DATA
IO2/SDA/EVENT
VDDHI
DS1
IO1/SCL/DATA
IO2/SDA/EVENT
3
IO1/SCL/1WIRE
1
VREG
4
CX
6
GND
2
VDDHI
5
U1
IQS211A
C5
10pF
GND
R5
470R
R4
680R
IO2
GND
R4 required when
“VREG damping
on IO2” is selected
for lowest power
consumption
VDDHI
R5
10k
IO1/SCL/DATA
R2
40R
Set S1 to downward position for 1 wire communication OR
DMP (current dump) for ultra-low power consumption.
Set S1 to upward position for I2C and programming
Place a jumper pin for a halt charge / reseed input
command on IO1 (OTP option)
Place a jumper pin to connect IO2 to R3 = 680Ω resistor
for DMP option on S1
IQS211AEV02 Main PCB
