TS01S

TS01S TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) SPECIFICATION VER. 2.5 Nov, 2016 ADSemiconductor Confidential ADSemiconductor® TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) General Application The TS01S is 1-Channel capacitive sensor with differential sensitivity calibration. And the supply voltage range is from 2.5 to 5.5V  The TS01S is designed for low power consumption. The TS01S has the function to select sensitivity by using SYNC pin without any additional external component. Home appliance(Refrigerator, Air cleaner, Air conditioner, Washing machine, Microwave oven)  Mobile application (PMP, Navigation, MP3 etc)  Human interface for toys & interactive games  Sealed control panels, keypads  Membrane switch replacement The TS01S has an output port(OUT) with open drain NMOS structure. Block Diagram Feature 1-Channel capacitive touch sensor with differential sensitivity calibration  Low power consumption  Idle current : Max 40uA @ 3.3V  Idle current : Max 70uA @ 5.0V  Uniformly adjustable sensitivity  Sync function for parallel operation  Three steps sensitivity available without external component  Open-drain digital output  Internal power on reset  Embedded common and normal noise elimination circuit  RoHS compliant SOT-26 package  Ordering Information Part No. TS01S Package SOT-26 AD Semiconductor Confidential 2 / 16 ADSemiconductor® TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) Content General.......................................................................................................................................2  1 2 3 4 Revision History .................................................................................................................3 Pin Configuration(SOT-26) ................................................................................................ 5 Pin Description(SOT-26)....................................................................................................5 Absolute Maximum Rating ................................................................................................ 6 ESD & Latch-up Characteristics ........................................................................................6 4.1 ESD Characteristics .............................................................................................. 6 4.2 Latch-up Characteristics ....................................................................................... 6 5 Electrical Characteristics ....................................................................................................7 6 TS01S Implementation .......................................................................................................8 6.1 Current consumption ............................................................................................ 8 6.2 CS and CR implementation .................................................................................. 9 6.3 SYNC implementation........................................................................................ 10 6.4 SYNC implementation for sensitivity selection ................................................. 10 6.5 OUTPUT implementation .................................................................................. 11 6.6 Internal reset operation ....................................................................................... 11 7 Recommended Circuit Diagram .......................................................................................12 7.1 Application Example .......................................................................................... 12 7.2 Example – Power Line Split Strategy PCB Layout .......................................... 123 8 PACKAGE Description....................................................................................................14 8.1 Mechanical Drawing ........................................................................................... 14 8.2 Marking Description ........................................................................................... 15 NOTES: ...................................................................................................................................16 AD Semiconductor Confidential 4 / 16 ADSemiconductor® TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) 1 Pin Configuration(SOT-26) TS01S SOT-26 (Drawings not to scale) 2 Pin Description(SOT-26) Pin Number Name I/O 1 OUTPUT Digital Output 2 VDD Power 3 SYNC Analog Input/Output 4 CS Analog Input 5 GND Ground 6 CR Analog Input Description Touch detect output Power (2.5V ~ 5.5V) Self operation signal output Peripheral operation signal input Sensitivity selection input [Note 1] Capacitive sensor input Supply ground Reference capacitive sensor input for differential sensitivity calibration Protection VDD/GND GND VDD/GND VDD/GND VDD VDD/GND Note 1: Refer to chapter 6.3, 6.4 SYNC implementation AD Semiconductor Confidential 5 / 16 ADSemiconductor® TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) 3 Absolute Maximum Rating Maximum supply voltage 5.5V Maximum voltage on any pin VDD+0.3 V Maximum current on any PAD 100mA Continuous Power Dissipation 200mW Storage Temperature -50 ~ 150℃ Operating Temperature -20 ~ 75℃ Junction Temperature 150℃ Note 2 : Unless any other command is noted, all above are operated in normal temperature. 4 ESD & Latch-up Characteristics 4.1 ESD Characteristics Mode H.B.M M.M C.D.M 4.2 Polarity Max Reference 8000V VDD 8000V VSS 8000V P to P 500V VDD 500V VSS 500V P to P 800V DIRECT Polarity Level Reference Positive 25mA ~ 100mA Negative -25mA ~ -100mA Positive 1V ~ 7.5V Pos / Neg Pos / Neg - Latch-up Characteristics Mode I Test V supply over 5.0V JESD78A AD Semiconductor Confidential 6 / 16 ADSemiconductor® TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) 5 Electrical Characteristics ▪ VDD=3.3V, Typical system frequency (Unless otherwise noted), TA = 25℃ Characteristics Symbol Operating supply voltage VDD Current consumption IDD Output maximum sink current Internal reset criterion VDD voltage Sense input capacitance range Test Condition Min Typ Max Units 2.5 3.3 5.5 V VDD= 3.3V - 25 40 VDD= 5.0V - 40 70 IOUT TA = 25℃ - - 4.0 ㎃ VDD_RST TA = 25℃ - - 0.3∙VDD V - 10 100 CS [Note 3] Reference input capacitance range ㎂ ㎊ CR - 12 100 RS - 200 1000 Ω 0.2 - - ㎊ ΔCS > 0.2pF - 12 - ΔCS < 0.2pF - 30M - [Note 4] Sense input resistance range Minimum detectable capacitance variation Output impedance (open drain) ΔCS Zo CS = 10pF Ω Self calibration time after VDD setting Maximum supply voltage rising time TCAL - 200 - ms TR_VDD - - 100 ms Recommended sync resistance range RSYNC 1 2 20 MΩ The sensitivity can be increased with lower CS value. The recommended value of CS is 10pF when using 3T PC(Poly Carbonate) cover and 10 ㎜ x 7 ㎜ touch pattern and middle sensitivity selection. Note 4: CR value is recommended as same that of C S_TOT as possible for effective differential sensitivity calibration. CS_TOT = CS + CPARA (CPARA is parasitic capacitance of CS pin) If proper CR capacitor value is used, CR pin has almost same frequency as that of CS pin. Note 3: AD Semiconductor Confidential 7 / 16 ADSemiconductor® TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) 6 TS01S Implementation 6.1 Current consumption TS01S uses internal bias circuit, so internal clock frequency and current consumption is not adjusted. The typical current consumption curve of TS01S is represented in accordance with VDD voltage as below. The higher VDD requires more current consumption. Internal bias circuit can make the circuit design simple and reduce external components. IDD [uA] 45 40 35 30 25 20 15 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VDD [V] Typical current consumption curve of TS01S AD Semiconductor Confidential 8 / 16 ADSemiconductor® TS01S (1-CH Differential Sensitivity Calibration Capacitive Touch Sensor) 6.2 CS and CR implementation RS CS