TS04P

TS04P TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) SPECIFICATION VER. 1.0 Jan. 2013 ADSemiconductor Confidential ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor)  Revision History Rev. 1.0 Description of change First creation Date Originator 13. 01. 18. KD PARK AD Semiconductor Confidential 2 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) Content  1 Revision History .................................................................................................................2 Features ............................................................................................................................... 4 1.1 General Features ................................................................................................... 4 1.2 Applications .......................................................................................................... 4 2 Block Diagram ....................................................................................................................5 3 Pin Configuration ...............................................................................................................6 4 Pin Description ...................................................................................................................7 4.1 Pin Map................................................................................................................. 7 5 Absolute Maximum Rating ................................................................................................ 8 6 ESD & Latch-up Characteristics ........................................................................................ 8 6.1 ESD Characteristics .............................................................................................. 8 6.2 Latch-up Characteristics ....................................................................................... 8 7 Electrical Characteristics ....................................................................................................9 8 TS04P Implementation .....................................................................................................10 8.1 Typical current consumption .............................................................................. 10 8.2 CS implementation ............................................................................................. 10 8.3 SYNC implementation........................................................................................ 11 8.4 Parallel output ..................................................................................................... 12 8.5 Internal reset operation ....................................................................................... 13 9 Recommended Circuit Diagram ....................................................................................... 14 10 MECHANICAL DRAWING ........................................................................................... 16 10.1 Mechanical Drawing of TS04P (14 SOP) .......................................................... 16 11 MARKING DESCRIPTION ............................................................................................ 18 11.1 Marking Description of TS04P ........................................................................... 18 NOTES: ...................................................................................................................................19 AD Semiconductor Confidential 3 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) 1 1.1 Features General Features  4-Channel capacitive sensor with auto sensitivity calibration  Selectable output operation mode (single output /multi output)  Uniformly adjustable 9 step sensitivity  Sync function for parallel operation  3 SYNC pins for various option selections  Almost no external component needed  Open-drain digital output  Low current consumption  Embedded common and normal noise elimination circuit  RoHS compliant 14 SOP package 1.2 Applications  Home application  Membrane switch replacement  Sealed control panels, keypads  Door key-lock matrix application  Touch screen replacement application AD Semiconductor Confidential 4 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) 2 Block Diagram AD Semiconductor Confidential 5 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) 3 Pin Configuration [14-SOP] AD Semiconductor Confidential 6 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) 4 Pin Description 4.1 Pin Map Pin Number 1 Name I/O OUT4 SYNC3 3 4 5 6 7 VDD CS1 CS2 CS3 CS4 8 SYNC1 9 SYNC2 10 DUMMY VSS OUT1 OUT2 OUT3 CH4 parallel output (Open drain) Output mode selection input1 Sync pulse input /output 3 Power (2.5V~5.0V) CH1 capacitive sensor input CH2 capacitive sensor input CH3 capacitive sensor input CH4 capacitive sensor input Sensitivity selection input 12 Sync pulse input /output 1 Sensitivity selection input 23 Sync pulse input /output 2 No Connection4 VDD/GND 2 Digital Output Digital Input /Output Power Analog Input Analog Input Analog Input Analog Input Digital Input /Output Digital Input /Output Ground Digital Output Digital Output Digital Output Supply ground CH1 parallel output (Open drain) CH2 parallel output (Open drain) CH3 parallel output (Open drain) VDD VDD/GND VDD/GND VDD/GND 11 12 13 14 1 2 3 4 Description Protection VDD/GND GND VDD/GND VDD/GND VDD/GND VDD/GND VDD/GND VDD/GND VDD/GND Refer to 8.3.3. Output mode selections. Refer to 8.3.2. Sensitivity selections. Refer to 8.3.2. Sensitivity selections. DUMMY pin should be no connection. AD Semiconductor Confidential 7 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) 5 Absolute Maximum Rating Battery supply voltage 6V Maximum voltage on any pin VDD+0.3 Maximum current on any PAD 100mA Power Dissipation 800mW Storage Temperature -50 ~ 150℃ Operating Temperature -20 ~ 75℃ Junction Temperature 150℃ Note : Unless any other command is noted, all above are operated in normal temperature. 6 6.1 ESD & Latch-up Characteristics ESD Characteristics Mode H.B.M M.M C.D.M 6.2 Polarity Max Reference 7500V VDD 7500V VSS 7500V P to P 550V VDD 550V VSS 550V P to P 1000V Field Induced Charge Polarity Max Reference Positive 100mA Negative -100mA Positive 8.25V Pos / Neg Pos / Neg - Latch-up Characteristics Mode I Test V supply over 5.0V JESD78A AD Semiconductor Confidential 8 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) 7 Electrical Characteristics ▪ VDD=3.3V, (Unless otherwise noted), TA = 25℃ Characteristics Symbol Operating supply voltage VDD Current consumption IDD Internal reset criterion VDD voltage Output maximum sink current Minimum detective capacitance difference Output impedance (open drain) Test Condition Min Typ Max Units 2.5 3.3 5.5 V VDD= 3.3V - 90 140 VDD= 5.0V - 110 180 VDD_RST TA = 25℃ - 1.5 IOUT TA = 25℃ - - 4.0 ㎃ 0.1 - - ㎊ ΔC > ΔCMIN - 12 - ΔC < ΔCMIN - 30M - ΔCMIN ㎂ V Zo Ω Self calibration time after TCAL Normal calibration speed 80 ms system reset Note 1: The sensitivity can be decreased with higher parallel capacitance of CS pin including parasitic capacitance made by neighbor GND or other pattern. Note 2: The series resistor (under 1kΩ) of CS can be used in noisy condition to avoid mal-function from external surge and ESD. AD Semiconductor Confidential 9 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) 8 8.1 TS04P Implementation Typical current consumption TS04P uses internal bias circuit, so internal clock frequency and current consumption is fixed and no external bias circuit is needed. The typical current consumption curve of TS04P is represented in accordance with VDD voltage as below. Internal bias circuit can make the circuit design simple and reduce external components. IDD [uA] Typical current consumption 120 100 80 60 40 20 0 2.0 8.2 2.5 3.0 3.5 4.0 VDDcurve [V] of TS04P Typical current consumption 4.5 5.0 5.5 CS implementation TS04P has 9 step selections of sensitivity and internal protection circuit so external components of CS pins such as series resistor or parallel capacitor isn’t necessary. The parallel parasitic capacitance of CS pins caused by touch line, touch pad and neighbor GND or other pattern may affect sensitivity. The sensitivity will be decreased when bigger parallel parasitic capacitance of CS pin is added. Parallel capacitor (CS1~S4) of CS pin is useful in case of detail sensitivity mediation is required such as for complementation sensitivity difference between channels. Same as above parallel parasitic capacitance, sensitivity will be decreased when a big value of parallel capacitor (CS1~S4) is used. Under 50pF capacitor can be used as sensitivity meditation capacitor and a few pF is usually used. The RS, serial connection resistor of CS pins, may be used to avoid mal-function from external surge and ESD. (It might be optional.) From 200Ω to 1kΩ is recommended for RS. Refer to below CS pins application figure. AD Semiconductor Confidential 10 / 19 ADSemiconductor® TS04P (4-CH Auto Sensitivity Calibration Capacitive Touch Sensor) RS4 CS4