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SM6781 Folha de dados(PDF) 8 Page - Nippon Precision Circuits Inc |
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SM6781 Folha de dados(HTML) 8 Page - Nippon Precision Circuits Inc |
8 / 10 page SM6781BV NIPPON PRECISION CIRCUITS—8 BATT Input The voltage applied to the BATT input, used for battery voltage detection, is a voltage potential, derived by a voltage divider resistor network (100k Ω or higher recommended) or other means, that represents the voltage of a single battery cell during charging. If a single cell only is under charge, a current limiting resistor (100k Ω or higher is recommended) should be connected between the battery and BATT input. Operating Mode vs. BATT Input Voltage Charging Operating Status Figure 5. BATT connection example (multiple) BATT pin N Rb Ra N:Number of cells Current Source Rb Ra = N − 1 Figure 6. BATT connection example (single) BATT pin 100k Ω Current Source NG NG Battery check Valid Valid Quick charge −∆V detect Battery voltage [V] 2.0 1.0 0.6 0 VDD − 1.5 VDD − 0.5 Valid Standby mode Charging status Conditions CHGN output LEDN output Internal timer INH Battery check OK Quick charge LOW Yes High impedance LOW (ON) Count Quick charge hold LOW No LOW 1Hz (pulsing) Hold Quick charge inhibit HIGH – LOW 1Hz (pulsing) Hold Quick charge finish LOW Yes LOW High impedance (OFF) Reset Standby – – High impedance High impedance (OFF) Reset |
Nº de peça semelhante - SM6781 |
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Descrição semelhante - SM6781 |
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