SMB358数据手册Qualcomm中文资料规格书

描述 Description

The SMB348 and SMB358 devices are programmable single-cell lithium-ion/lithium-polymer battery chargers designed for a variety of portable applications. The device provides a simple and efficient way to charge high-capacity Li-ion batteries and power the system via a USB or AC adapter input.

Unlike conventional charging devices, the SMB348’s and SMB358’s high-efficiency switch-mode operation eliminates the low charge current and thermal problems of conventional linear solutions. In addition, the switching architecture in conjunction w....

特性 Features

• Maximum charge current
• SMB348: up to 1.5 A
• SMB358: up to 2 A

• Automatic input current limit (AICL) for universal USB/AC/DC adapter compatibility (patent granted)
• Optional automatic power source detection (APSD) per the latest USB Battery Charging Specification revision 1.2
• USB or AC input with programmable input current limiting (USB 2.0/3.0 compliant)
• Up to 700 mA charging output from 500 mA USB port or 2000 mA from AC adapter using the TurboCharge mode (patent granted)
• Input/output CurrentPath control allows system operation with deeply discharged/missing battery – no startup delay
• USB-OTG and HDMI/MHL power support (up to 900 mA at +5.0 V)
• Float voltage and charge current compensation for JEITA and JISC 8714 support
• 1.5 MHz or 3 MHz (not supported for OTG power operation) switching allows tiny external components