LTC1759是Smart Battery Charger - LINEAR(凌力尔特)

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LTC1759 - LTC1759是Smart Battery Charger

LTC1759是Linear公司的一款开关充电器产品，LTC1759是Smart Battery Charger，本站介绍了LTC1759的封装应用图解、特点和优点、功能等，并给出了与LTC1759相关的凌力尔特元器件型号供参考。

LTC1759 - Smart Battery Charger

LTC1759 - Smart Battery Charger - Linear Technology（凌力尔特）

功能描述

The LTC1759 Smart Battery Charger is a single chip charging solution that dramatically simplifies construction of an SBS compliant system. The LTC1759 implements a Level 2 charger function whereby the charger can be programmed by the battery or by the host. A thermistor on the battery being charged is monitored for temperature, connectivity and battery type information. The SMBus interface remains alive when the AC power adapter is removed and responds to all SMBus activity directed to it, including thermistor status (via the ChargerStatus command). The charger also provides an interrupt to the host whenever a status change is detected (e.g., battery removal, AC adapter connection). Charging current and voltage are restricted to chemistry specific limits for improved system safety and reliability. Limits are programmable by two external resistors. Additionally, the maximum average current from the AC adapter is programmable to avoid overloading the adapter when simultaneously supplying load current and charging current. When supplying system load current, charging current is automatically reduced to prevent adapter overload.

特点

Single Chip Smart Battery Charger Controller

100% Compliant (Rev 1.0) SMBus SupportAllows for Operation with or without Host

SMBus Accelerator Improves SMBus Timing

Hardware Interrupt and SMBAlert ResponseEliminate Interrupt Polling

High Efficiency Synchronous Buck Charger

0.5V Dropout Voltage; Maximum Duty Cycle > 99.5%

AC Adapter Current Limit Maximizes Charge Rate*

1% Voltage Accuracy; 5% Current Accuracy

Up to 8A Charging Current Capability

Dual 10-Bit DACs for Charger Voltage and CurrentProgramming

User-Selectable Overvoltage and Overcurrent Limits