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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AS3649 датащи(PDF) 5 Page - ams AG |
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AS3649 датащи(HTML) 5 Page - ams AG |
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5 / 39 page  AS3649 Datasheet - Electrical Character i s t ics www.ams.com/AS3649 1.0-2 5 - 39 6 Electrical Characteristics VVIN = +2.7V to +4.4V, TAMB = -30ºC to +85ºC, unless otherwise specified. Typical values are at VVIN = +3.7V, TAMB = +25ºC, unless otherwise specified. Table 3. Electrical Characteristics Symbol Parameter Condition Min Typ Max Unit General Operating Conditions VVIN Supply Voltage Pin VIN 2.7 3.7 4.4 V VVINREDUCED_ FUNC Supply Voltage AS3649 functionally working, but not all parameters fulfilled 2.5 2.7 V 4.4 5.5 ISHUTDOWN Shutdown Current TXMASK/TORCH=L, STROBE=L, ON=L, VVIN<3.7V 1.0 2.0 µA ISTANBY Standby Current Interface active, TXMASK/TORCH=L, STROBE=L VVIN<3.7V 1.0 10 µA TAMB Operating Temperature -30 25 85 ºC 1 Application Efficiency (DCDC and current source) LCOIL=0.6µH@3A, LESR=60m , LED_OUT1,2=2000mA, tFLASH<300ms, VFLED=3.7V 83 % tFLASH Flash Duration VVIN>3.3V, TAMB<85ºC, ILED_OUT<2000mA If TAMB or ILED_OUT is reduced or VVIN is increased, longer flash times are allowed. For longer flash durations, see section Current Reduction by VIN Measurements in Flash Mode and Diagnostic Pulse on page 15 300 ms DCDC Step Up Converter VVOUT DCDC Boost output Voltage (pin VOUT1/2) 2.8 5.5 V RPMOS On-resistance DCDC internal PMOS switch 45 m RNMOS On-resistance DCDC internal NMOS switch 47 m fCLK Operating Frequency All internal timings are derived from this oscillator -7.5% 4.0 +7.5% MHz VVOUT5V DCDC Boost output Voltage (pin VOUT1/2) Constant voltage mode operation const_v_mode (see page 30)=1 5.0 V Current Sources VLED LED forward voltage Two flash LEDs, ILED_OUT<2x1000mA 2.8 3.32 4.0 V Single flash LED, ILED_OUT<1800mA 2.8 3.32 4.4 V ILED_OUT LED_OUT1/2 current combined VVIN>3.3V, coil_peak=11b, LCOIL=0.6µH@3.4A, LESR=60m coil SPM3012T-1R0M, tFLASH<300ms dual flash LED, current_boost=0 0 2000 mA single flash LED 0 2000 mA ILED_OUT_BO OST LED_OUT1/2 current combined Dual flash LED, current_boost=1 0 2500 2 mA ILED_OUT LED_OUT1/2 current source accuracy Otherwise -7 +7 % ILED_OUT=500mA...800mA, 0ºC<TJ<100ºC -5 +5 % ILED_OUT RAMP LED_OUT1/2 ramp time Rampup initiated by I 2C command 730 µs Rampup started by STROBE 530 µs Full range Ramp-down 500 µs ILED_OUT RIPPLE LED_OUT current ripple ILED_OUT = 1000mA 40 mAPP |
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