Design af USB batterilader
Texas Instruments lancerer ny 1.1-A single-celle Li-Ion batterilader med integreret 50-mA regulator (in english).
Texas Instruments (TI) has introduced the introduced today the industry’s smallest 1.1-A Li-Ion linear battery charger with integrated 50-mA low-dropout regulator to support mobile phones and other handheld electronics.
The new bq25040 comes in a small 2 mm x 3 mm package, and can regulate voltage within one-percent accuracy from a USB port or AC adapter. The device’s integrated LDO
allows a mobile application to power up instantly from an external power source, even with an empty or absent battery.
The bq25040 also saves manufacturing time and cost by eliminating the need for battery setup during production test phase. The charger’s single-input interface selects the appropriate charge current and places the device into production test mode.
