FMA1127DC-40N Fujitsu, FMA1127DC-40N Datasheet - Page 20

• Manufacturer Part Number: FMA1127DC-40N
• Description: IC, CONTROLLER, TOUCH SENSOR, 40QFN
• Manufacturer: Fujitsu

Specifications of FMA1127DC-40N

• Brief Features: Patented Fully Digital Architecture, Configurable Touch Input Channels, Host Interface Via I2C
• Supply Voltage Range: 2.3V To 5.5V
• Operating Temperature Range: -40°C To +90°C
• Ic Function: Touch Sensor Controller
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Touch Sensor Controller
18
Typical Application
Notes:
• The voltage range of VDD can be from 2.3V to 5.5V. If internal LDO is used, it should be from 3V to 5.5V.
• Pull-Up resistors are required for I
• Each tuning capacitor is an optional component depending on PCB layout environment.
• The circuit above is a typical application circuit using an internal LDO.
• RESET_N pin should be connected to host MCU GPIO and needs an RC filter. (R1=10KΩ, C1=1uF)
• For LED control through DIO ports, sink current circuit is mandatory as shown above.
Fujitsu Microelectronics America, Inc.
resistor is typically used.
Data Sensor
Tuning Cap
From MCU
Tou ch PAD
Touch_Sensor_9
Touch_Sensor_8
Touch_Sensor_6
Touch_Sensor_5
Touch_Sensor_4
Touch_Sensor_3
Touch_Sensor_2
Touch_Sensor_1
Touch_Sensor_0
R1
10K
2
1uF
C communication. For 5V application, 2K ohm resistor is typically used. For 3V application, 1K ohm
C1
RESET_N
FMA1127DC
2K
2K
24S
10uf
Reference Sensor
X pF
(LED Control Circuit)
DIO_N
Tuning Cap
VDD