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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SC805EVB датащи(PDF) 13 Page - Semtech Corporation |
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SC805EVB датащи(HTML) 13 Page - Semtech Corporation |
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13 / 15 page  13 2005 Semtech Corp. www.semtech.com SC805 POWER MANAGEMENT State Diagram Shutdown Mode Vout/Iout off CHRGB High Z Soft Start CC Mode Start Pre-Charge OVP> Vin > UVLO Iout=1500/Rprog Iout=150/Rterm Under Voltage will force the SC805 into Shutdown Mode from any state. Over Voltage will disable the output, suspend the timer, and blink CHRGB Monitor Mode Vout=off Float Charge Mode Vout = CV Yes Soft Start Vout Yes En=Hi Timer Enabled? Start Timer Vout>2.8V Time>Tmax/4 Iout<Iterm Vout=CV Start CV Mode CHRGB Low CHRGB High Timer Enabled? Time>Tmax Vout< CV-100mV Pre-Charge Timeout Fault CHRGB blinks at 1Hz Cleared by Vbat>2.8V or Re-cycle EN or VCC NTC out of Range Fault CHRGB blinks at 1Hz Timer is frozen Charge resumes when NTC Temperature is valid 0oC > NTC Temp >50oC CC=Constant Current CV=Constant Voltage Yes Yes Yes Yes Yes Yes Yes Time=0 Iout<Iterm CHRGB High Yes Time>Tmax Yes |
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