LTC4075HVX - LTC4075HVX是High Voltage Dual Input

LTC4075HVX是LINEAR凌力尔特公司的一款线性充电器产品，LTC4075HVX是LTC4075HVX是High Voltage Dual Input，本站介绍了LTC4075HVX的封装应用图解、特点和优点、功能等，并给出了与LTC4075HVX相关的LINEAR元器件型号供参考。

LTC4075HVX - LTC4075HVX是High Voltage Dual Input - 线性充电器 - 电源管理 - 凌力尔特

LTC4075HVX - High Voltage Dual Input

LTC4075HVX - High Voltage Dual Input - Linear Technology（凌力尔特）

功能描述

The LTC4075HVX is a standalone linear charger that is capable of charging a single-cell Li-Ion/Polymer 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. The LTC4075HVX features a maximum 22V rating for both wall adapter and USB inputs although charging stops if the selected power source exceeds the overvoltage limit. Internal thermal feedback regulates the battery charge current to maintain a constant die temperature during high power operation or high ambient temperature conditions. The float voltage is fixed at 4.2V and the charge current is programmed with an external resistor. The LTC4075HVX terminates the charge cycle when the charge current drops below the programmed termination threshold after the final float voltage is reached.

Other features include automatic recharge, undervoltage lockout, charge status outputs, and “power present” status outputs to indicate the presence of wall adapter or USB power. No trickle charge allows full current from the charger when a load is connected directly to the battery.

Trickle ChargeVin Abs MaxLTC4075Yes10VLTC4075XNo10VLTC4075HVXNo22V

特点

22V Maximum Voltage for Wall Adapter andUSB Inputs

Charge 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

Overvoltage Lockout for Wall Adapter andUSB Inputs

No External MOSFET, Sense Resistor or Blocking Diode Needed

Thermal Regulation Maximizes Charge Rate Without Risk of Overheating*

Preset Charge Voltage with ±0.35% Accuracy

Programmable Charge Current Termination

40µA USB Suspend Current in Shutdown