Overview
The LTC4060EDHC#PBF, produced by Analog Devices Inc., is a complete fast charging system designed for NiMH or NiCd batteries. This integrated circuit (IC) provides a standalone linear charging solution that requires only a few external components to operate. It is particularly useful for applications where simplicity and reliability in battery charging are crucial.
Key Specifications
| Parameter | Specification |
|---|---|
| Input Supply Range | 4.5V to 10V |
| Fast Charge Current Range | 0.4A to 2A (programmable beyond 2A with external sense resistor) |
| Charge Current Accuracy | ±5% at 2A |
| Termination Methods | –∆V, Maximum Voltage, Maximum Time |
| Package Types | 16-Lead DFN and TSSOP |
| Operating Ambient Temperature Range | –40°C to 85°C |
| Storage Temperature Range | –65°C to 150°C (TSSOP), –65°C to 125°C (DFN) |
| Automatic Sleep Mode Current | <1µA |
Key Features
- No firmware or microcontroller required.
- No sense resistor or blocking diode needed.
- Automatic recharge keeps batteries charged.
- Programmable fast charge current.
- Automatic detection of battery type.
- Precharge for heavily discharged batteries.
- Optional temperature qualified charging.
- Charge and AC present status outputs can drive LEDs.
- Manual shutdown capability.
- Negligible battery drain in sleep mode.
Applications
- Portable computers.
- Cellular phones and PDAs.
- Medical equipment.
- Charging docks and cradles.
- Portable consumer electronics.
Q & A
- What type of batteries does the LTC4060 support? The LTC4060 supports NiMH and NiCd batteries.
- What is the input supply range for the LTC4060? The input supply range is 4.5V to 10V.
- How is the fast charge current programmed? The fast charge current is programmed using an external resistor.
- What are the termination methods for charging? The termination methods include –∆V, Maximum Voltage, and Maximum Time.
- What are the available package types for the LTC4060? The LTC4060 is available in 16-Lead DFN and TSSOP packages.
- Does the LTC4060 require a microcontroller or firmware? No, the LTC4060 does not require a microcontroller or firmware.
- How does the LTC4060 handle heavily discharged batteries? The LTC4060 includes a precharge feature for heavily discharged batteries.
- Can the LTC4060 be used in high-temperature environments? Yes, the LTC4060 operates in an ambient temperature range of –40°C to 85°C.
- What is the current consumption in sleep mode? The current consumption in sleep mode is less than 1µA.
- Can the LTC4060 drive LEDs for status indicators? Yes, the charge and AC present status outputs can drive LEDs.
