STBC03 Datasheet, PDF (15/34 Pages) STMicroelectronics – Li-Ion linear battery charger with LDO and load switches

STBC03
Figure 7: Pre-charge to fast charge mode transition
deglitch
Typical performance characteristics
Figure 8: Pre-charge to fast charge mode to no
charge mode transition
CH1 (blue) = VIN 800 mV/div
CH2 (red) = VSYS 800 mV/div
CH3 (green) = VBAT 800 mV/div
CH4 (pink) = IBAT 20 mA/div
Figure 9: Wake-up pin operation
CH1 (blue) = VIN 800 mV/div
CH2 (red) = VSYS 800 mV/div
CH3 (green) = VBAT 800 mV/div
CH4 (pink) = IBAT 20 mA/div
Figure 10: VIN plug, charging initialization
Shutdown mode to battery mode transition. VIN floating
CH1 (blue) = WAKE-UP pin 800 mV/div
CH2 (red) = VSYS 800 mV/div
CH3 (green) = VBAT 800 mV/div
Shutdown mode to VIN mode transition
CH1 (blue) = VIN 800 mV/div
CH2 (red) = VSYS 800 mV/div
CH3 (green) = VBAT 800 mV/div
CH4 (pink) = IBAT 20 mA/div
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