LTC4000-1 Series

High Voltage High Current Controller for Battery Charging with Maximum Power Point Control

Catalog

High Voltage High Current Controller for Battery Charging with Maximum Power Point Control

Part	Battery Chemistry	Current - Charging	Programmable Features	Supplier Device Package	Fault Protection	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case
Analog Devices LTC4000IGN-1#TRPBF	Lithium Iron Phosphate	Constant - Programmable	Timer	28-SSOP	Reverse Current	Surface Mount	-40 °C	125 ¯C	28-SSOP
Analog Devices LTC4000EGN-1#PBF	Lithium Iron Phosphate	Constant - Programmable	Timer	28-SSOP	Reverse Current	Surface Mount	-40 °C	125 ¯C	28-SSOP
Analog Devices LTC4000IGN#PBF	Lithium Iron Phosphate	Constant - Programmable	Timer	28-SSOP	Reverse Current	Surface Mount	-40 °C	125 ¯C	28-SSOP
Analog Devices LTC4000EUFD#PBF	Lithium Iron Phosphate	Constant - Programmable	Timer	28-QFN (4x5)	Reverse Current	Surface Mount	-40 °C	125 ¯C	28-WFQFN Exposed Pad
Analog Devices LTC4000EUFD#TRPBF	Lithium Iron Phosphate	Constant - Programmable	Timer	28-QFN (4x5)	Reverse Current	Surface Mount	-40 °C	125 ¯C	28-WFQFN Exposed Pad

Catalog

High Voltage High Current Controller for Battery Charging with Maximum Power Point Control

Key Features

• Complete High Performance Battery Charger When Paired with a DC/DC Converter

• Wide Input and Output Voltage Range: 3V to 60V

• Input Ideal Diode for Low Loss Reverse Blocking and Load Sharing

• Output Ideal Diode for Low Loss PowerPath™and Load Sharing with the Battery

• Instant-On Operation with Heavily Discharged Battery

• Programmable Input and Charge Current: ±1% Accuracy

• ±0.25% Accurate Programmable Float Voltage

• Programmable C/X or Timer Based Charge Termination

• NTC Input for Temperature Qualified Charging

• 28-Lead 4mm × 5mm QFN or SSOP Packages

Description

The LTC4000-1 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers with maximum power point control. In contrast to the LTC4000, the LTC4000-1 has an input voltage regulation loop instead of the input current regulation loop.Features of the LTC4000-1’s battery charger include: accurate (±0.25%) programmable float voltage, selectable timer or current termination, temperature qualified charging using an NTC thermistor, automatic recharge, C/10 trickle charge for deeply discharged cells, bad battery detection and status indicator outputs. The battery charger also includes precision current sensing that allows lower sense voltages for high current applications.The LTC4000-1 supports intelligent PowerPath control. An external PFET provides low loss reverse current protection. Another external PFET provides low loss charging or discharging of the battery. This second PFET also facilitates an instant-on feature that provides immediate downstream system power even when connected to a heavily discharged or shorted battery.The LTC4000-1 is available in a low profile 28-lead 4mm × 5mm QFN and SSOP packages.LTC4000LTC4000-1Input Voltage Regulation MPPCNoYesInput Current MonitoringYesYesInput Current RegulationYesNoApplicationsSolar Powered Battery Charger SystemsBattery Charger with High Impedance Input Source, e.g., Fuel Cell or Wind TurbineBattery Equipped Industrial or Portable Military Equipments