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BQ24700PW Datasheet(PDF) 8 Page - Texas Instruments |
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BQ24700PW Datasheet(HTML) 8 Page - Texas Instruments |
8 / 28 page bq24700, bq24701 NOTEBOOK PC BATTERY CHARGE CONTROLLER AND SELECTOR WITH DPM SLUS452B – APRIL 2001 – REVISED NOVEMBER 2002 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics (TA = TOPR, 7.0 Vdc VCC 20.0 Vdc, all voltages relative to Vss) (unless otherwise specified) (continued) battery current output amplifier PARAMETER TEST CONDITIONS MIN TYP MAX UNIT GTR Transfer gain (SRP – SRN) = 50 mV, See Note 6 5 18.2 V VIBAT Battery current readback output voltage (IBAT) (SRP – SRN) = 50 mV, SRP = 12 V, VCC = 18 V, TA = 25°C 0.97 1.00 1.03 V Line rejection voltage TA = 25°C 10 mV/V CM Common-mode input range (SRP) 5 18.2 V VO(IBAT) Battery current output voltage range (IBAT) 0 2.5 V IS(O) Output source current (IBAT) (SRP – SRN) = 100 mV 150 600 1200 µA Total batter c rrent readback mid scale (SRP – SRN) = 50 mV, TA = 25°C, See Note 7 –4% 4% Total battery current readback mid-scale accuracy (SRP – SRN) = 50 mV, –40 °C ≤ TA ≤ 85°C, See Note 7 –6% 6% Total batter c rrent readback f ll scale (SRP – SRN) = 100 mV, TA = 25°C, See Note 7 –6% 6% Total battery current readback full-scale accuracy (SRP – SRN) = 100 mV, –40 °C ≤ TA ≤ 85°C, See Note 7 –8% 8% 5-V voltage reference PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V O tp t oltage (VREF) 0 °C ≤ TA ≤ 70°C 5.000 5.030 5.060 V VREF Output voltage (VREF) –40 °C ≤ TA ≤ 85°C 4.960 5.030 5.070 V Line regulation 0.15 0.37 mV/V Load regulation 1 mA ≤ ILOAD ≤ 5 mA 1.0 2.5 mV/mA Short circuit current 8 18 30 mA half supply regulator PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VHSP(on) VCC up-threshold for half supply regulation 14.5 15.5 16.5 V VCC hysteresis for half supply regulation –7.2% –6.5% –6% VHSP/VCC Voltage regulation VCC ≥ VHSP(on), 16.5 V ≤ VCC ≤ 20 V 0.45 0.50 0.55 VHSP VCC < VHSP(on), 7 V ≤ VCC ≤ 14.5 V 2.0 V NOTES: 6. Battery readback transfer gain G TR + V IBAT (SRP * SRN) 7. Total battery current readback accuracy is based on the measured value of VIBAT, VIBATm, and the calculated value of VIBAT, VIBATc, using the measured value of the transfer gain, GTR. V IBATc + (SRP * SRN) GTR Total Accuracy in % + V IBATm * V IBATc V IBATm 100 |
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