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AS3668 Datasheet(PDF) 7 Page - ams AG |
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AS3668 Datasheet(HTML) 7 Page - ams AG |
7 / 60 page www.austriamicrosystems.com/AS3668 Revision 1.11 7 - 60 AS3668 Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s 6 Electrical Characteristics VBAT = 3.6V, CBAT = CVCPOUT = 1µF, CFLY = 470nF, TAMB = -30ºC to +85ºC, typical values @ TAMB = +25ºC (unless otherwise specified) . Table 3. Electrical Characteristics Symbol Parameter Condition Min Typ Max Unit General Operating Conditions VBAT Supply Voltage 2.7 5.5 V IVBAT Standby supply current SCL = 0V and GPIO = 0V 0.2 3 A Normal Mode supply current SCL = VBAT and SDA = VBAT, no I2C communication and no internal block enabled 10 A Charge pump in 1x mode, no load, current source outputs disabled 70 A Charge pump in 2x mode, no load, current source outputs disabled 2.5 mA fOSC Internal Oscillator Frequency Accuracy -10 +10 % TAMB Operating Temperature 1 -30 25 85 °C Charge Pump ROUT Charge Pump Output Resistance Operating Mode 1:1 2 Ω Operating Mode 1:2; VBAT = 3.0V 20 fSW Switching Frequency 1 MHz tON VCP Turn-On Time 2 no load, current sources CURR1 - CURR4 deactivated 30 s IOUT = 50mA, current sources CURR1 - CURR4 deactivated 40 s Current Sources ILEAK Leakage Current (LED1 to CURR4) PWM = 0% 0.1 1 A IMAX Maximum Source Current Outputs CURR1 to CURR4 25.5 mA IOUT Output Current Accuracy Output Current set to 25.5 mA -15 +15 % IMATCH Matching Accuracy Output Current set to 25.5 mA -10 +10 % fLED Switching Frequency PWM mode with internal oscillator 122 Hz Logic Interface Logic Input SCL, SDA and GPIO/AUDIO_IN VIL Input Low Level 0.52 V VIH Input High Level 1.38 VBAT V IIN Input Current -1.0 1.0 A VOLGPIO Low Level Output voltage Pin GPIO/AUDIO_IN at 4mA 0.2 V VHYS Hysteresis 0.1 V fEXT External PWM input Only possible with GPIO/AUDIO_IN 1 MHz Analogue Input Analogue Audio Input GPI/AUDIO_IN VAUDIO Input Signal Level 2.5 VPEAK RAUDIO_IN Audio Input Resistance Audio Preamplifier Gain = -6dB 400 k Audio Preamplifier Gain = +20dB 60 k |
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