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DS2711E+T Datasheet(PDF) 3 Page - Maxim Integrated Products |
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DS2711E+T Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 15 page  DS2711/DS2712: Loose-Cell NiMH Chargers 3 of 15 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Threshold Voltage, Thermistor - Min VTHM-MIN (Notes 1, 4, 6) VDD x 0.73 V Threshold Voltage, Thermistor - Max VTHM-MAX (Notes 1, 4, 6) 0.30 VDD x 0.33 0.36 V Threshold Voltage, Thermistor - Stop VTHM-STOP (Notes 1, 4, 6) VDD x 0.29 V Threshold Current, TMR Pin Suspend ITMR-SUS 0.1 0.5 µA Presence Test Current, VP1, VP2 IPTST Parallel: VDD ≥ 4.0V, Series: VDD ≥ 4.5V 10 15 µA Reverse Leakage Current, VP1, VP2 ILKGR VDD = 0V, VP1 = 1.5V, VP2 = 3.0V 2 µA Current-Sense Reference Voltage VIREF (Note 1, 4, 7) 125 mV -6% +6% % Gain, Current-Sense Error Amp GM DS2711 (Note 8) 0.9 1.5 Ω-1 Gain, Current-Sense Comparator GM DS2712 (Note 8) 10 Ω-1 Propagation Time, Current-Sense Comparator tPDLY DS2712, 2mV over/underdrive 0.25 µs Hysteresis, Current- Sense Comparator VHYS-COMP DS2712 22 24 26 mV ELECTRICAL CHARACTERISTICS: TIMING (4.0V ≤ V DD ≤ 5.5V, TA = -20°C to +70°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Internal Timebase Period tBASE 0.96 s Internal Timebase Accuracy -10 +10 % Duty Factor, Series Fast Charge CC1 0.969 Duty Factor, Series Precharge/Top-Off CC1 0.250 Duty Factor, Parallel Fast Charge CC1, CC2 0.484 Duty Factor, Parallel Precharge/Top-Off CC1, CC2 0.125 Duty Factor, Maintenance Charge CC1, CC2 0.0156 Cell Test Interval tCTST 31 Seconds Precharge Timeout tPCHG VCELL < VBAT-MIN 34 Minutes Fast-Charge Termination Hold-Off Period tTHO 4 Minutes Fast-Charge Flat Voltage Timeout tFLAT VCELL not increasing 16 Minutes Charge Timer Period tCTMR RTMR = 100kΩ 2.5 Hours |
Similar Part No. - DS2711E+T |
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Similar Description - DS2711E+T |
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