Description
www.ti.com Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support Check for Samples: bq24153, bq24156, bq2.
The bq24153/6/8 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batte.
Features
* 1
* 2 Charge Faster than Linear Chargers
* High-Accuracy Voltage and Current Regulation
* Input Current Regulation Accuracy: ±5% (100 mA and 500 mA)
* Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C)
* Charge Current Regulation Accuracy: ±5%
Applications
* Mobile and Smart Phones
* MP3 Players
* Handheld Devices
Typical Application Circuit
VBUS CIN 1 µF
VBUS
SW
U1
bq24153/8
VAUX 10 kΩ 10 kΩ
CIN
PMID
4.7
µF
BOOT PGND
CSIN
LO 1 µH
CBOOT 10 nF
VSNS
CSIN 0.1 µF
SCL
10 kΩ
SCL
CSOUT
SDA STAT OTG
10 kΩ
HOST
CD 10