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BQ4802LYDWR Datasheet(PDF) 3 Page - Texas Instruments |
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BQ4802LYDWR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 26 page bq4802Y bq4802LY SLUS464C – AUGUST 2000 – REVISED JUNE 2002 www.ti.com 3 ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC(min) ≤ VCC ≤ VCC(max) unless otherwise noted) INPUT SUPPLY PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ICC Supply current 100% Minimum duty cycle, CS = VIL, II/O = 0 mA 5 9 mA CS = VIH 3 ISB1 Standby supply current CS = VCC – 0.2 V, 0 V ≤ VIN ≤ 0.2 V or VIN = VCC – 0.2 V 1.5 mA ICCB Battery operation supply current VBC = 3 V, TA = 25°C, No load at VOUT or CEOUT, II/O = 0 mA 0.3 0.5 µA ILI Input leakage current VIN = VSS to VCC –1 1 µA ILO Output leakage current CS = VIH or OE = VIH or WE = VIL –1 1 µA VOUT(1) Output voltage IOUT = 80 mA,VCC > VBC VCC-0.3 V VOUT(2) Output voltage IOUT = 100 µA, VCC < VBC VBC-0.3 V VPFD Power fail detect voltage bq4802Y 4.30 4.37 4.5 V VPFD Power fail detect voltage bq4802LY 2.4 2.53 2.65 V VSO Supply switch over voltage VBC > V(PFD) VPFD V VSO Supply switch over voltage VBC < V(PFD) VBC V VRST RST output voltage(1) I(RST) = 4 mA 0.4 V VINT INT output voltage(1) I(INT) = 4 mA 0.4 V (1) RST and INT are open drain outputs. WATCHDOG PARAMETER TEST CONDITIONS MIN TYP MAX UNIT I(WDIL) Low-level watchdog input current –50 –10 µA I(WDIH) High-level watchdog input current 20 50 µA V(WDO) WDO output voltage ISINK = 4 mA 0.4 V V(WDO) WDO output voltage ISOURCE = 2 mA 2.4 V CRYSTAL SPECIFICATIONS (DT-26) OR EQUIVALENT) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT fO Oscillation frequency 32.768 kHz CL Load capacitance 6 pF TP Temperature turnover point 20 25 30 °C k Parabolic curvature constant –0.042 ppm/ °C Q Quality factor 40,000 70,000 R1 Series resistance 45 k Ω C0 Shunt capacitance 1.1 1.8 pF C0/C1 Capacitance ratio 430 600 DL Drive level 1 µW ∆f/f0 Aging (first year at 25 °C) 1 – ppm CAPACITANCE PARAMETER TEST CONDITIONS MIN TYP MAX UNIT II/O Input/outputcapacitance VOut = 0 V 7 pF CI Input capacitance V = 0 V 5 pF |
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