This cheap and easy to build NiCd/NiMH Battery Charger circuit is suitable for automatically charging a wide range of batteries for many applications. This 'intelligent' charger was designed for high current and rapid charge applications such as cordless power tools and model racing cars. These battery packs are expensive and sometimes difficult to purchase. This charger uses the cell manufacturer's recommended charge method, to safely and quickly charge batteries.
Skema Rangkaian NiMH/NiCd Battery ChargerLinear 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. 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.
The LTC4060 - NiMH/NiCd Battery Charger circuit 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: <>
- Manual Shutdown
- Input Supply Range: 4.5V to 10V
- Available in 16-Lead DFN and TSSOP Packages
