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EC49020BSMHT Datasheet(PDF) 4 Page - E-CMOS Corporation |
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EC49020BSMHT Datasheet(HTML) 4 Page - E-CMOS Corporation |
4 / 11 page EC49020 4D25N-Rev.P001 E-CMOS Corp. (www.ecmos.com.tw) Page 4 of 11 High Efficiency 2A 1.5MHz Single Cell Li-ion Battery Switching Charger Electrical Characteristics VIN=5V, typical values are at TA = +25°C, with respect to GND PARAMETER TEST CONDITIONS MIN TYP MAX UNITS INPUT VOLTAGE VIN Supply Operating Range 4.5 6.5 V VUVLO Under-voltage lockout threshold Measure on VIN 0V4V 3.3 V VUVLO_HYS Hysteresis on UVLO Measure on VIN 4V 0V 300 mV VOVP Over-Voltage Rising VIN rising 5V 7V 6.55 6.75 6.95 V VOVP_HYS Hysteresis on OVP VIN falling 7V 5V 100 mV AUTOMATIC SLEEP COMPARATOR (REVERSE DISCHARGING PROTECTION) VSLEEP SLEEP mode threshold VIN – VBAT falling 100 mV VSLEEP_HYS Hysteresis VIN – VBAT rising 200 mV QUIESCENT CURRENTS IBAT Battery discharge current Pull TS to GND 25 µA IAC Adapter supply current VIN > VUVLO, VIN > VBAT, 1.2 2.0 mA VBAT>VBAT_REG, Charge disabled CHARGE VOLTAGE REGULATION VBAT_REG BAT regulation voltage EC49020XS, measured on BAT 0°C ≤ TA ≤+70°C 4.158 4.200 4.242 V EC49020BS, measured on BAT 0°C ≤ TA ≤+70°C 4.306 4.350 4.393 VRCHG Recharge Threshold, belowregulation voltage limit 1 cell, measured on BAT VBAT_REG-VBAT 100 mV VLOWV Trickle Charge to fast charge transition threshold measured on BAT 2.9 V VOV_BAT BAT Over-voltage Threshold As percentage of VBAT_REG 104% CHARGE CURRENT REGULATION IOUT Charge Current Limit VBAT(REG) > VBAT > VLOWV; IOUT = KISET /RISET;RISET = 40kΩ to 200kΩ 0.5 2 A KISET Fast charge current factor RISET = KISET /IOUT; 0.5A<IOUT< 2A 100 A·k Ω %TRICHG Trickle Charge Current VBAT < VLOWV 10 %IOUT %TERM Termination Current VBAT > VRCHG 10 %IOUT THERMISTOR COMPARATOR VLTF Cold Temperature Threshold, TS pin Voltage Rising Threshold Charger suspends charge. As percentage to VCC 70.5% 73.5% 76.5% VLTF_HYS Cold Temperature Hysteresis, TS pin voltage Falling As percentage to VCC 0.4% VHTF Hot Temperature TS pin voltage rising Threshold As percentage to VCC 47% VTCO Cut-off Temperature TS pin Voltage falling Threshold As percentage to VCC 41.7% 44.7% 47.7% VOFF Charging Disable Threshold TS pin voltage falling edge Hysteresis 0.15V 0.15 V INTERNAL THERMAL REGULATION TJ_REG Temperature Regulation Limit Charging 125 °C |
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