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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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L6924D 数据表(PDF) 21 Page - STMicroelectronics |
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L6924D 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 38 page  L6924D Applications information: charging process 21/38 7.6 Recharge flow chart Figure 15. Recharge flow chart 7.7 Recharge threshold When, from an End-of-Charge condition, the battery voltage goes lower than the recharging threshold (VRCH), the device goes back in charging state. The value of the recharge threshold is VOPRG–150mV. END of CHARGE VBAT > VRCH Detect Low VBAT > VPRETH FAST CHARGE Detect High VBAT > VRCH BATTERY ABSENT PRE CHARGE FAULT IND FAULT VBAT > VRCH Detect High Fault VBAT < VABS Detect Low Fault VBAT > VPRETH BATTERY ABSENT YES NO NO NO YES YES NO YES NO NO YES YES DETECT LOW = a ISINK is sunk for a TDET from the battery DETECT HIGH = a IINJ is injected for a TDET in the battery DETECT LOW FAULT = a ISINK is sunk for a TDET from the battery DETECT HIGH FAULT = a IINJ is injected for a TDET in the battery VABS = VOPRG – 50mV VRCH = VOPRG – 150mV TDET = 100ms (Typ.) ISINK = IINJ = 1mA (Typ.) RETURN TO CHARGING PROCESS FLOW CHART GO TO BATTERY ABSENT FLOW CHART FROM CHARGING PROCESS FLOW CHART |
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