NCP1851, NCP1851A Fully Integrated Li-Ion Switching Battery Charger with Power Path Management and USB NCP1851, NCP1851A 2.2 H R L SNS X 68 m SW IN C C IN OUT C BOOT SYSTEM NCP1851 1 F 10 F 10 nF CBOOT CAP SENSP C CAP SENSN 4.7 F WEAK VBUS D+ FET CORE C Q (*) D CORE BAT GND 2.2 F BAT NTC + TRANS C TRS 0.1 F USB PHY ILIM1 FLAG ILIM2 SCL OTG SDA AGND SPM PGND *Optional Battery FET. Figure 1. Typical Application Circuit PIN CONNECTIONS 12 3 4 5 A IN IN SPM SDA SCL B CAP CAP OTG ILIM2 FLAG C SW SW AGND ILIM1 NTC D PGND PGND SENSP SENSN FET E CBOOT TRANS CORE WEAK BAT (Top View) Figure 2. Package Outline CSP