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DS2712E+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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DS2712E+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 15 page DS2711/DS2712: Loose Cell NiMH Charger 4 of 15 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Duty Factor, Parallel Precharge/Top-Off CC1, CC2 0.125 Duty Factor, Maintenance Charge CC1, CC2 0.0156 Cell Test Interval tCTST 31 s Precharge Time-Out tPCHG VCELL < VBAT-MIN 34 minutes Fast-Charge Termination Hold-Off Period tTHO 4 minutes Fast-Charge Flat Voltage Time-Out tFLAT VCELL not increasing 16 minutes Charge Timer Period tCTMR RTMR = 100kΩ 2.5 h Charge Timer Accuracy RTMR = 100kΩ -5 +5 % Charge Timer Range tCTMR-RANGE 0.5 10 h Note 1: Voltages relative to VSS. Note 2: IMTST current is applied as a source current and as a sink current within 5ms after power-up. Note 3: When operating in two-cell-series charge configuration, the DMSEL pin must have less than 50pF of external load capacitance for proper operation. If the load capacitance is greater than 50pF, a resistor voltage divider should be used to maintain DMSEL at VDD / 2. Note 4: Specification applicable during charge cycle with TA = 0°C to +70°C. Note 5: VBAT-MAX1 and VBAT-MAX1 are generated from the same reference. Their ranges never overlap. Note 6: VTHM-MIN, VTHM-MAX, and VTHM-STOP are fixed ratios of VDD. Their ranges never overlap. Note 7: Tested with ICSOUT = -1mA. Note 8: Gain tested with 1mV step with ICSOUT = -1mA. |
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Similar Description - DS2712E+ |
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