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AS3722 Datasheet(PDF) 48 Page - ams-OSRAM AG |
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AS3722 Datasheet(HTML) 48 Page - ams-OSRAM AG |
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48 / 199 page  ams Datasheet Page 47 [v1-01] 2015-Sep-07 Document Feedback AS3722 − Detailed Descriptions- Power Management Functions Parameter Figure 47: Backup-Battery Charger Parameter Backup-Battery Charger Parameter: Shows the key electrical parameter of the charger for the backup battery Symbol Parameter Conditions Min Typ Max Unit VSUP Supply voltage range BBCVolt=’0’ 3.0 5.5 V BBCVolt=’1’ 3.3 5.5 VBBC Maximum charging voltage BBCVolt=’0’ 2.4 2.5 2.6 V BBCVolt=’1’ 2.9 3.0 3.1 IBBC Charge current Value is set by BBCCur in the Backup Battery Charger register -30% BBCCur +30% A VDELTA Delta voltage for resistive mode BBCResOff=’0’ 160 220 300 mV IVSUP Supply current BBCResOff=’0’ 20 μA BBCResOff=’1’ BBCPwrSave=’1’; backup battery full. |
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