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TPS65070 Datasheet(PDF) 10 Page - Texas Instruments |
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TPS65070 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 93 page TPS65070, TPS65072, TPS65073 TPS650731, TPS650732 SLVS950B – JULY 2009 – REVISED DECEMBER 2009 www.ti.com ADC CONVERTER PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Input voltage range at AD_IN1 to AD_IN4 pin For full scale measurement 0 2.25 (channel 0 to channel 3) VIN Input voltage range internal channel 6 to channel 9 For full scale measurement 0 6 V Input voltage range on channel4 (TS pin) and channel5 Unipolar measurement of charge current at pin 0 2.25 (ISET pin) ISET (voltage at ISET) Iin AD_IN1 to AD_IN4 input current 0.1 4 μA Cin Input capacitance at AD_IN1 to AD_IN4 15 pF ADC resolution 10 Bits Differential linearity error ±1 LSB Offset error 1 5 LSB Gain error ±8 LSB Sampling time 220 Conversion time 19 Wait time after enable Time needed to stabilize the internal voltages 1.5 ms includes current needed for I2C block 500 μA Quiescent current, ADC enabled by I2C Quiescent current, conversion ongoing 1 mA Reference voltage output on pin BYPASS –1% 2.260 1% V Output current on reference output pin BYPASS 0.1 mA TOUCH SCREEN INTERFACE PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VTSREF Voltage at internal voltage regulator for TSC 2.30 V TOUCHSCREEN PANEL SPECIFICATIONS Plate resistance X Specified by design 200 400 1200 Ω Plate resistance Y Specified by design 200 400 1200 Ω Resistance between plates contact 180 400 1000 Ω Resistance between plates pressure 180 400 1000 Ω Settling time Position measurement; 400 Ω, 100 pF 5.5 μs Capacitance between plates 2 10 nF Total capacitance at pins TSX1,TSX2,TSY1,TSY2 to GND 100 pF internal TSC reference resistance 20.9 22 23.1 k Ω SWITCH MATRIX SPECIFICATIONS Tgate resistance Specified by design 111 160 230 Ω PMOS resistance Specified by design 20 Ω NMOS resistance Specified by design 20 Ω in TSC standby mode with TSC_M[2..0] = Quiescent supply current 10 μA 101 POWER PATH PARAMETER TEST CONDITIONS MIN TYP MAX UNIT QUIESCENT CURRENT Current into AC or USB, AC or USB selected, IQSPP1 Quiescent current, AC or USB mode 20 μA no load at SYS INPUT SUPPLY Minimum battery voltage for BAT SWITCH VBATMIN No input power, BAT_SWITCH on 2.75 V operation AC detected when V(AC)–V(BAT) > VIN(DT) ; VIN(DT) Input voltage detection threshold USB detected when 150 mV V(USB)–V(BAT) > VIN(DT) AC not detected when V(AC)–V(BAT) < VIN(NDT) Input Voltage removal threshold VIN(NDT) ; USB not detected when 75 mV V(USB)–V(BAT) < VIN(NDT) Activated based on settings in CHGCONFIG3 IDISCH Internal discharge current at AC and USB input 95 μA Bit 0 and Bit 7 10 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): TPS65070 TPS65072 TPS65073 TPS650731, TPS650732 |
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