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LTC4010 Datasheet(PDF) 3 Page - Linear Integrated Systems |
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LTC4010 Datasheet(HTML) 3 Page - Linear Integrated Systems |
3 / 20 page 3 LTC4010 4010p The ● indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 12V, BAT = 4.8V, GND = PGND = 0V, unless otherwise noted. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ∆VLI BAT – SENSE Line Regulation 5.5V < VCC < 34V, Fast Charge ● 1 TBD mV IBAT BAT Input Bias Current 0.3V < BAT < VCC – 0.1V –2 0 2 mA ISENSE SENSE Input Bias Current SENSE = BAT 50 150 µA IOFF Input Bias Current SENSE or BAT, VCELL = 0V ● –1 0 1 µA fTYP Typical Switching Frequency ● 485 550 615 kHz fMIN Minimum Switching Frequency ● 20 30 kHz DCMAX Maximum Duty Cycle 98 99 % VOL(TG) TGATE Output Voltage Low (Note 6) VCC ≥ 9V, No Load (VCC – TGATE) ● 5.35 6.3 8.75 V VCC ≤ 7.5V, No Load ● 50 mV VOH(TG) TGATE Output Voltage High VCC – TGATE, No Load ● 050 mV tR(TG) TGATE Rise Time CLOAD = 3nF, 10% to 90% 35 50 ns tF(TG) TGATE Fall Time CLOAD = 3nF, 10% to 90% 45 100 ns VOL(BG) BGATE Output Voltage Low No Load ● 050 mV VOH(BG) BGATE Output Voltage High No Load ● INTVDD INTVDD V – 0.05 tR(BG) BGATE Rise Time CLOAD = 1.6nF, 10% to 90% 30 65 ns tF(BG) BGATE Fall Time CLOAD = 1.6nF, 10% to 90% 10 25 ns ADC Inputs ILEAK Analog Channel Leakage 0V < VCELL < 2V, 0V < VTEMP < 2V ±100 nA Charger Thresholds VBP Battery Present Threshold Voltage ● 340 350 360 mV VBOV Battery Overvoltage ● 1.9 1.95 2 V VMFC Minimum Fast Charge Voltage ● 875 900 925 mV VFCBF Fast Charge Battery Fault Voltage ● 1.17 1.22 1.27 V ∆VV(TERM) –∆V Termination CHEM = Open (NiCd) ● 18 20 22.0 mV CHEM = 0V (NiMH) ● 8.5 10 11.5 mV VAR Automatic Recharge Voltage VCELL Decreasing ● 1.275 1.325 1.375 V ∆VT(TERM) ∆T Termination (Note 7) CHEM = Open (NiCd) ● 1.84 2 2.16 °C/MIN CHEM = 0V (NiMH) ● 0.86 1 1.14 °C/MIN VT(MIN) Minimum Charging Temperature VTEMP Increasing ● 35 7 °C (Note 7) VT(MAXI) Maximum Charge Initiation VTEMP Decreasing, Not Charging ● 43 45 47 °C Temperature (Note 7) VT(MAXC) Maximum Charging Temperature VTEMP Decreasing, Charging ● 58 60 62 °C (Note 7) VTEMP(D) VTEMP Disable Threshold Voltage ● 2.85 3.3 V VTEMP(P) Pause Threshold Voltage ● 160 280 mV Charger Timing ∆tTIMER Internal Time Base Error ● –10 10 % ∆tMAX Programmable Timer Error RTIMER = 49.9k ● –15 15 % |
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Similar Description - LTC4010 |
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