STMPE16M31PXQTR STMicroelectronics, STMPE16M31PXQTR Datasheet - Page 44

• Manufacturer Part Number: STMPE16M31PXQTR
• Description: IC CTLR TOUCHKEY 16CHAN 32-QFN
• Manufacturer: STMicroelectronics
• Series: S-Touch™r
• Type: Capacitive, PWM, Ratio Enginer

Specifications of STMPE16M31PXQTR

• Featured Product: STMPE16M31PX
• Number Of Inputs/keys: 16 Key, Slider
• Data Interface: I²C
• Data Rate/sampling Rate (sps, Bps): 100k, 400k
• Voltage Reference: External
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Supply Voltage: 1.65 V to 1.95 V
• Number Of Channels: 16
• Dimensions: 4 mm L x 4 mm W x 0.8 mm H
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Resolution (bits): -
• Touch Panel Interface: -
• Other names: 497-10738-2

Basic PWM programming
12
44/75
Basic PWM programming
The PWM controllers are capable of generating the following brightness patterns:
Figure 9.
The registers need to be programmed for this sequence:
Figure 10. Ramps with programmable brightness, ON/OFF period and repetition
–
–
–
–
–
On period = Period 0[1:0] * Time Unit [3:0]
Off period = Period 1[1:0] * Time Unit [3:0]
Duty cycle during on period = Brightness [7:4]
Number of cycles = Repetition [3:0]
Ramp-mode is disabled
Pulses with programmable brightness, ON/OFF period and repetition
Doc ID 17058 Rev 2
STMPE16M31PX