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NCP1871MNTXG Datasheet(PDF) 11 Page - ON Semiconductor |
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NCP1871MNTXG Datasheet(HTML) 11 Page - ON Semiconductor |
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11 / 27 page  NCP1871 www.onsemi.com 11 SMBUS Registers Map SMBUS slave address (binary): b0001001x. ChargeOption Register − Memory Location : 12h Bit Type Reset Name RST Value Function 0 RW POR, TR_OFF CHR_DIS 0 Charge is suspend when set 1 1 RW POR, TR_OFF EOC 0 Set 1 will jump to End of Charge state from FULL charge: signal dictated by the Fuel Gauge 2 RW POR, TR_OFF IEOC_EN 0 Set 1 enable the charger end of charge detection 3 RW POR, TR_OFF LEARN 0 Set 1 enable the LEARN mode 4 RW POR, TR_OFF PMOBAT_EN 0 Set 1 enable the Battery Power monitoring circuitry 5 RW POR, TR_OFF PMOAC_EN 0 Set 1 enable the Input Power monitoring circuitry 6 RW POR, TR_OFF GAIN_SEL 0 Multiplier Gain selection 0: Full scale 100 W 1: Full scale 50 W 7 RW POR, TR_OFF PMO_IMO_SEL 0 0 : PMO selected 1: IMO selected 8 RW POR, TR_OFF GBC_SEL 0 0: Battery Current Sense Gain is 10 1: Battery Current Sense Gain is 20 9 RW POR, TR_OFF WDTMR_SET[0] 1 Watchdog timer [1:0]: 00: Disable 01: 32s 10: 64s 11: 128s 10 RW POR, TR_OFF WDTMR_SET[1] 0 11 RW POR, TR_OFF FREQ_SEL[0] 01 DCDC frequency selection[1:0]: 00: 600 kHz 01: 800 kHz 10: 1000 kHz 11: 1200 kHz 12 RW POR, TR_OFF FREQ_SEL[1] 13 RW POR, TR_OFF VLOBAT_REG[0] 0 Ratio of VDRPREF[1:0]: 00: Off 01: 105% 10: 107.5% 11: 110% 14 RW POR, TR_OFF VLOBAT_REG[1] 1 15 RW POR, TR_OFF VDROOP_EN 0 0: Critical Voltage Monitoring disable 1: Critical Voltage Monitoring enable ChargeCurrent Register − Memory Location : 14h Bit Type Reset Name RST Value Function 0 RW POR, TR_OFF IPRE_0 11 00: 0 mA 01: 128 mA 10: 256 mA 11: 512 mA 1 RW POR, TR_OFF IPRE_1 2 R Not Used 3 R Not Used 4 R Not Used 5 R Not Used 6 R Not Used 7 RW POR, TR_OFF ICHG_0 000001 000001 : 128 mA (Lower Clamp) 111111: 8064 mA (Higher Clamp) Step : 128 mA 8 RW POR, TR_OFF ICHG_1 9 RW POR, TR_OFF ICHG_2 10 RW POR, TR_OFF ICHG_3 11 RW POR, TR_OFF ICHG_4 12 RW POR, TR_OFF ICHG_5 13 R Not Used 14 R Not Used 15 R Not Used |
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