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LTC4071

Part Number LTC4071
Manufacturer Linear
Title Li-Ion/Polymer Shunt Battery Charger
Description The LTC®4071 allows simple charging of Li-Ion/Polymer batteries from very low current, intermittent or continuous charging sources. A near-zero cu...
Features n Charger Plus Pack Protection in One IC n Low Operating Current (550nA) n Near Zero Current (0.1nA) Low Battery Disconnect Function to Protect Batteries from Over-Discharge n Pin Selectable Low Battery Disconnect Level: 2.7V or 3.2V n 1% Float Voltage Accuracy Over Temperature n 50mA Maximum Inter...

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LTC4070 : The LTC®4070 allows simple charging of Li-Ion/Polymer batteries from very low current, intermittent or continuous charging sources. The 450nA to 50mA operating current makes charging possible from previously unusable sources. With the addition of an external pass device, shunt current may be boosted to 500mA. Stacked cell high voltage battery packs are inherently balanced with shunt charging. With its low operating current, the LTC4070 is well suited to charge thin film batteries in energy harvesting applications where charging sources may be intermittent or very low power. The unique architecture of the LTC4070 allows for an extremely simple battery charger solution; requiring just one exte.

LTC4075 : U U FEATURES ■ 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 ■ No External MOSFET, Sense Resistor or Blocking Diode Needed ■ Thermal Regulation Maximizes Charging Rate Without Risk of Overheating* ■ Preset Charge Voltage with ±0.6% Accuracy ■ Programmable Charge Current Termination ■ 18µA USB Suspend Current in Shutdown ■ Independent “Power Present” Status Outputs ■ Charge Status Output ■ Automatic Recharge ■ Available Without Trickle Charge (LTC4075X) ■ Available in a Thermally Enhanced, Low Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package U APPLICATIO S .

LTC4075HVX : The LTC®4075HVX 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 con.

LTC4075X : U U FEATURES ■ 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 ■ No External MOSFET, Sense Resistor or Blocking Diode Needed ■ Thermal Regulation Maximizes Charging Rate Without Risk of Overheating* ■ Preset Charge Voltage with ±0.6% Accuracy ■ Programmable Charge Current Termination ■ 18µA USB Suspend Current in Shutdown ■ Independent “Power Present” Status Outputs ■ Charge Status Output ■ Automatic Recharge ■ Available Without Trickle Charge (LTC4075X) ■ Available in a Thermally Enhanced, Low Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package U APPLICATIO S .

LTC4076 : LTC4076 Dual Input Standalone Li-Ion Battery Charger www.DataSheet4U.com ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ U APPLICATIO S ■ ■ ■ ■ 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 Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package The LTC®4076 is a standalone linear charger that is capable .

LTC4077 : U U FEATURES ■ 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/10 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 Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package U APPLICATIO S ■ Cellular Telephones ■ Handheld Computers ■ Portable MP3 Players ■ Digital Cameras LTC4077 Dual Input Standalone Li-Ion Battery Cha.

LTC4078 : The LTC®4078/LTC4078X are standalone linear chargers that are capable of charging a single-cell Li-Ion/Polymer battery from both wall adapter and USB inputs. The chargers 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 LTC4078/LTC4078X feature 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 t.

LTC4078X : The LTC®4078/LTC4078X are standalone linear chargers that are capable of charging a single-cell Li-Ion/Polymer battery from both wall adapter and USB inputs. The chargers 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 LTC4078/LTC4078X feature 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 t.

LTC4079 : The LTC®4079 is a low quiescent current, high voltage linear charger for most battery chemistry types including Li-Ion/Polymer, Lead-Acid or NiMH battery stacks up to 60V. The maximum charge current is adjustable from 10mA to 250mA with an external resistor. The battery charge voltage is set using an external resistor divider. With an integrated power device, current sensing and reverse current protection, a complete charging solution using the LTC4079 requires very few external components. Thermal regulation ensures maximum charge current up to the specified limit without the risk of overheating. Charging can be terminated by either C/10 or adjustable timer. Input voltage regulation reduces.




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