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PS200 датащи(PDF) 12 Page - Microchip Technology |
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PS200 датащи(HTML) 12 Page - Microchip Technology |
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12 / 36 page ![]() PS200 DS21891B-page 10 © 2005 Microchip Technology Inc. TABLE 2-1: PS200 LITHIUM CONFIGURABLE PARAMETERS Step 1 – Configuration Parameter Name # Bytes Lower Limit Upper Limit Typical Value Description MfgName — N/A N/A Microchip ASCII value. DevName — N/A N/A PS200 ASCII value. SeriesCells 1 1 255 4 Number of series connected cells in the battery pack. Capacity (mAh) 2 0 65535 2000 Full-charge capacity of the battery pack. PWMFreq 1 7 83 15 LUT value which determines the PWM frequency. Step 2 – Charging Limits Parameter Name # Bytes Lower Limit Upper Limit Typical Value Description PCVMin (mV) 2 0 65535 2500 Minimum cell voltage required to enable charging with precharge conditions. PCVMax (mV) 2 0 65535 3000 Maximum cell voltage required to enable charging with precharge conditions. PCCurrent (mA) 2 0 65535 200 Charging current during precharge. PCTempMin 1 0 255 50 Minimum temperature required to enable charging with precharge conditions. PCTempMin value = (temperature °C * 10 + 200)/4; so typical value of 50 = 0°C. PCTempMax 1 0 255 175 Maximum temperature required to enable charging with precharge conditions. PCTempMax value = (temperature °C * 10 + 200)/4; so typical value of 175 = 50°C. PCTime (min) 1 0 255 60 Duration of precharge. CRVTarg (mV) 2 0 65535 4200 Target cell voltage in current regulation. This is set to the fully charged voltage of one cell, typically, as specified by the cell manufacturer. CRCurrent (mA) 2 0 65536 2000 Charging current during current regulation. CRTimeMax (min) 1 0 255 90 Current regulation time limit. VRVrech (mV) 2 0 65536 3780 Voltage regulation recharge cell voltage. Charger will automatically begin charging if cell voltage of pack falls below SeriesCells * VRVrech. VRIMin (mA) 2 0 65536 150 Voltage regulation fully charged current. This is the value of the taper current or IMIN which will determine that the battery is fully charged. VRTimeMax (min) 1 0 255 90 Voltage regulation time limit. TempMax 1 0 255 200 Maximum temperature required to enable charging during current regulation and voltage regulation. TempMax value = (temperature °C * 10 + 200)/4; so typical value of 200 = 60°C. |
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