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CBC3112 Datasheet(PDF) 7 Page - Cymbet Corporation |
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CBC3112 Datasheet(HTML) 7 Page - Cymbet Corporation |
7 / 16 page EnerChip CC CBC3112 ©2009-2013 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com DS-72-04 Rev F Page 7 of 16 CHARGE PUMP CHARACTERISTICS VDD=2.5Vto5.5V,Ta = -20ºC to +70ºC CHARACTERISTIC SYMBOL CONDITION MIN MAX UNITS ENABLE=VDD to Charge Pump Active tCPON ENABLE to 3rd charge pump pulse, VDD=3.3V 60 80 µs ENABLE Falling to Charge Pump Inactive tCPOFF - 0 1 µs Charge Pump Frequency fCP - 120 KHz (1) Charge Pump Resistance RCP Delta VBAT, for IBAT charging current of 1µA to 100µA CFLY=0.1µF, CBAT=1.0µF 150 300 Ω VCHG Output Voltage VCP CFLY=0.1µF, CBAT=1.0µF, IOUT=1µA, Temp=+25ºC 4.075 4.125 V VCHG Temp. Coefficient TCCP IOUT=1µA, Temp=+25ºC -2.0 -2.4 mV/ºC Charge Pump Current Drive ICP IBAT=1mA CFLY=0.1µF, CBAT=1.0µF 1.0 - mA Charge Pump on Voltage VENABLE ENABLE=VDD 2.5 - V (1) fCP = 1/tCPPER ADDITIONAL CHARACTERISTICS Ta = -20ºC to +70ºC CHARACTERISTIC SYMBOL CONDITION LIMITS UNITS MIN MAX VBAT Cutoff Threshold VBATCO IOUT=1µA 2.75 3.25 V Cutoff Temp. Coefficient TCCO - +1 +2 mV/ºC VBAT Cutoff Delay Time tCOOFF VBAT from 40mV above to 20mV below VBATCO IOUT=1µA 40 - ms VOUT Dead Time, VDD Rising (2) tRSBR IOUT=1mA VBAT=4.1V 0.2 2.0 µs VOUT Dead Time, VDD Falling (2) tRSBF VBAT=4.1V 0.2 2.0 µs Bypass Resistance ROUT - - 2.5 Ω (2) Dead time is the time period when the VOUT pin is floating. Size the holding capacitor accordingly. Note:Allspecificationscontainedwithinthisdocumentaresubjecttochangewithoutnotice |
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