ChipLead VAS5180
The VAS5180 is optimized for power bank application; it is a single chip solution PMIC with fully covers charger, boost converter, fuel gauge, torch light and output short protection functions. The VAS5180 integrate all power switches, minimizes external components, simplify application, require no MCU and share one inductor for both charger and boost mode, all of these make it is the most BOM efficient compare with present power bank solutions.GENERAL DESCRIPTION
A high efficiency SW charger offers max. 2.5A charger current with adjustable cell voltage and safety timer, it also integrated both input current limit and input voltage regulation to manage max input power without DC source crash. A boost converter support 5V/2A output and designed to allow true output disconnect, the automatic load-in enable and load remove disable provide convenience of use.FEATURES
(Charger)● Integrated power MOSFETs
● 20V input rating (surge protection)
● Real ONE chip solution, no MCU required
● Programmable up to 2.5A charge current(set by ext. RISET resistor)
● Up to 94% efficiency
● Programmable output voltage (4.20V to 4.4V) with ±1% accuracy
● Automatically reduce charge current when supplied by poor power source (VIN-DPM)
● Does not required reverse blocking diode or MOS
● No sense resistor required
● Integrated fuel gauge and capacity indicator
● Fault indicator
● ±10% charge current accuracy
● 1.5MHz operating frequency to minimize e...