LTC4095
PRODUCTIONStandalone USB Li-Ion/Polymer Battery Charger in 2mm x 2mm DFN
- Part Models
- 2
- 1ku List Price
- Starting From $1.79
Overview
- Full-Featured Standalone USB Li-Ion/Polymer Battery Charger
- 100mA to 950mA Programmable Charge Current
- C/10 Charge Current Detection Output
- Internal Safety Timer Termination
- NTC Thermistor Input for Temperature Qualified Charging
- Preset 4.2V Float Voltage with 0.5% Accuracy
- Constant-Current/Constant-Voltage Operation with Thermal Feedback
- Charge Current Monitor Output for Gas Gauging
- Automatic Recharge
- Bad-Battery Detection
- 8.5µA Input Supply Current in Suspend Mode
- Tiny 8-Lead (2mm × 2mm) DFN Package
The LTC4095 is a complete constant-current/constant-voltage linear charger for single-cell lithium-ion/polymer batteries. Its small 2mm × 2mm DFN package and low external component count make the LTC4095 especially well-suited for portable USB power applications.
Up to 950mA of charge current may be programmed via a single resistor from the PROG pin to ground. The HPWR pin allows the charge current to be set at 20% or 100% of its full-scale programmed value. An internal safety timer terminates charge current. The final float voltage is preset to 4.2V and held to a tight 0.5% tolerance. Also featured is an NTC thermistor input to monitor battery temperature while charging, a C/10 current detection output, automatic recharge, bad-battery detection and low-battery trickle charge. A thermal feedback loop regulates the charge current to limit the die temperature during high power operation or high ambient thermal conditions.
The LTC4095 is available in a tiny, low profile (0.75mm) 8-lead 2mm × 2mm DFN package.
Applications
- PDAs
- Media Players
- Cellular Phones
- Other Portable Electronics
Documentation
Data Sheet 1
User Guide 1
Application Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC4095EDC#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC4095EDC#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Hot Swap Controllers 1 | ||
|
LTC4361-1 LTC4361-2 |
Overvoltage/Overcurrent Protection Controller | |
Evaluation Kits
LTC4095EDC Demo Board