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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AS3648 датащи(PDF) 6 Page - ams AG |
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AS3648 датащи(HTML) 6 Page - ams AG |
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6 / 39 page  www.austriamicrosystems.com/AS3648 1.5-4 5 - 38 AS3648 Datasheet, Confidential - 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 VLED_OUTC OMP_HYST Comparators hysteresis Hysteresis for comparators between LED_OUT1 and LED_OUT2 reporting signals led_out1above2 and led_out2above1 30 mV VHIGH_VDS Comparator High VDS low vds and high vds comparator - see 4MHz/ 1MHz Operating Mode Switching on page 11 900 mV VLOW_VDS Comparator Low VDS 320 ILEAK_ LED_OUT LED_OUT1/2 Leakage Current Pins LED_OUT1 and LED_OUT2 -1.0 0.0 +1.0 µA Protection and Fault Detection Functions (see page 11) VVOUTMAX VVOUT overvoltage protection DCDC Converter Overvoltage Protection 5.0 5.3 5.6 V ILIMIT Current Limit for coil LDCDC (Pin SW) measured at 40% PWM duty cycle 4 maximum 40000s lifetime operation in overcurrent limit coil_peak=00b 1.8 2.0 2.23 A coil_peak=01b 2.25 2.5 2.78 default value coil_peak (see page 23)=10b 2.7 3.0 3.34 coil_peak=11b 3.15 3.5 3.9 VLEDSHORT Flash LED short circuit detection voltage Voltage measured between pins VOUT1,2 and LED_OUT1,2 1.0 V TOVTEMP Overtemperature Protection Junction temperature 144 ºC TOVTEMPHY ST Overtemperature Hysteresis 5ºC tFLASHTIMEO UT Flash Timeout Timer Can be adjusted with register flash_timeout (page 26) 2 1280 ms accuracy -7.5 +7.5 % VUVLO Undervoltage Lockout Falling VVIN 2.25 2.4 2.5 V Rising VVIN VUVLO +0.05 VUVLO +0.1 VUVLO +0.15 V Digital Interface VIH High Level Input Voltage Pins SCL, SDA. Pin TXMASK/TORCH in external torch mode (ext_torch_on=10) 1.26 VVIN V VIL Low Level Input Voltage 0.0 0.54 V VIHFLASH High Level Input Voltage Pin STROBE. Pin TXMASK/TORCH for TxMask mode (ext_torch_on=01) 5 0.7 VVIN V VILFLASH Low Level Input Voltage 0.0 0.54 V VOL Low Level Output Voltage pin SDA, IOL=3mA 0.3 V ILEAK Leakage current Pins SCL, SDA -1.0 0.0 +1.0 µA IPD Pulldown current to GND 6 Pins TORCH, STROBE and TXMASK/TORCH 36 µA tDEBTORCH TORCH debounce time 6.3 9 11.7 ms tTIMEOUT SCL timeout In indicator, assist or flash mode, if SCL is low longer than this timeout, the AS3648 automatically enters shutdown mode 35 100 ms Table 4. Electrical Characteristics (Continued) Symbol Parameter Condition Min Typ Max Unit |
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