LTC4076 - LTC4076是Dual Input Standalone Battery Charger
LTC4076是Linear公司的一款线性充电器产品，LTC4076是Dual Input Standalone Battery Charger，本站介绍了LTC4076的封装应用图解、特点和优点、功能等，并给出了与LTC4076相关的凌力尔特元器件型号供参考。
LTC4076 - Dual Input Standalone Battery Charger
LTC4076 - Dual Input Standalone Battery Charger - Linear Technology（凌力尔特）
功能描述
The LTC4076 is a standalone linear charger that is capable of charging a single-cell Li-Ion battery from both wall adapter and USB inputs. The charger can detect power at the inputs and automatically select the appropriate power source for charging.
No external sense resistor or blocking diode is required for charging due to the internal MOSFET architecture. Internal thermal feedback regulates the battery charge current to maintain a constant die temperature during high power operation or high ambient temperature conditions. The ?oat voltage is ?xed at 4.2V and the charge current is programmed with an external resistor. The LTC4076 terminates the charge cycle when the charge current drops below the user programmed termination threshold after the ?nal ?oat voltage is reached. The LTC4076 can be put into shutdown mode reducing the DCIN supply current to 20μA, the USBIN supply current to 10μA, and the battery drain current to less than 2μA even with power applied to both inputs.
Other features include automatic recharge, undervoltage lockout, charge status output, power present status output to indicate the presence of wall adapter or USB power and high power/low power mode (C/5) for USB compatible applications.
特点
Charges Single-Cell Li-Ion Batteries from Wall Adapter and USB Inputs Automatic Input Power Detection and Selection Charge Current Programmable up to 950mA from Wall Adapter Input C/X Charge Current Termination Thermal Regulation Maximizes Charge Rate Without Risk of Overheating* Preset Charge Voltage with ±0.6% Accuracy 18μA USB Suspend Current in Shutdown Power Present Status Output Charge Status Output Automatic Recharge Available in a Thermally Enhanced, Low Pro? le (0.75mm) 10-Lead (3mm × 3mm) DFN Package应用
Cellular Telephones Handheld Computers Portable MP3 Players Digital Cameras以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
| LTC4076EDD | 3x3 DFN-10 | E | $2.67 | $1.88 |
| LTC4076EDD#PBF | 3x3 DFN-10 | E | $2.67 | $1.88 |
| LTC4076EDD#TR | 3x3 DFN-10 | E | | $1.98 |
| LTC4076EDD#TRPBF | 3x3 DFN-10 | E | | $1.98 |
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