DA9057

Product Brief DA9057 DA9057 Flexible Energy Management with Ultra low Power CODEC General Description The DA9057 is a highly integrated power management, audio and user interface controller dedicated for multimedia players, portable navigation systems and other handheld devices. www.DataSheet4U.com PMIC Four DC-DC converters and ten low dropout regulators are provided, each fully configurable on startup to support a wide range of application processors, associated peripherals and user interface functions. Featuring a dual-input switched-mode charger, threeway USB powerpath management and multiple sleep modes the device offers an energy-optimised solution for a wide variety of portable applications. Interfacing directly to a single Li-lon/Polymer battery pack the high efficiency switching charger supports precise current/voltage charging as well as pre charge and USB modes without processor interaction. During charging the die temperature is thermally regulated enabling higher capacity batteries to be rapidly charged at currents up to 1.3A with minimum thermal impact to space-constrained PCB’s. USB suspend mode operation is supported; for robustness the 500mA current-limited USB power inputs are internally protected against over-voltage conditions. The autonomous power path controller seamlessly detects and manages energy flow between an AC adaptor, USB cable and battery whilst maintaining USB power specification compliance. The internally-generated system power rail support...