Advanced Linear NiMH NiCd Fast Battery Charger

This is a simple Batteries charger for NiMH/NiCd.It Requires No Microcontroller or any Firmware.Linear Technology Corporation introduces the LTC4060, an autonomous 1- to 4-cell, 0.4A to 2A linear NiMH and NiCd battery charger. The LTC4060 includes all the functions required for a battery charger circuit, operating without the aid of a microcontroller or firmware. The design is simple and needs only three passive components. The LTC4060 also eliminates the need for a sense resistor and blocking diode, which increases efficiency and lowers the solution cost. This IC is targeted at applications including portable medical equipment, automotive diagnostic systems and industrial/telecom test devices.

Features

Complete Fast Charger Controller for Single, 2-, 3- or 4-Series Cell NiMH/NiCd Batteries
No Firmware or Microcontroller Required
Termination by –?V, Maximum Voltage or Maximum Time
No Sense Resistor or Blocking Diode Required
Automatic Recharge Keeps Batteries Charged
Programmable Fast Charge Current: 0.4A to 2A
Accurate Charge Current: ?5% at 2A
Fast Charge Current Programmable Beyond 2A with External Sense Resistor
Automatic Detection of Battery
Precharge for Heavily Discharged Batteries
Optional Temperature Qualified Charging
Charge and AC Present Status Outputs Can Drive LED
Automatic Sleep Mode with Input Supply Removal
Negligible Battery Drain in Sleep Mode: <1?A
Manual Shutdown
Input Supply Range: 4.5V to 10V

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