LTC4067
PRODUCTIONUSB Power Manager with OVP and Li-Ion/Polymer Charger
- Part Models
- 2
- 1ku List Price
- Starting From $2.63
Overview
- Programmable Input Current Limit:
- Single Resistor at CLPROG Pin to Set and Monitor Input Current
- Battery Charger/Ideal Diode/Controller:
- 13V Overvoltage Protection
- Full Featured Battery Charger with 4.2V Float
- Up to 1.25A Programmable Charge Current
- Thermal Regulation Maximizes Charge Current Without Risk of Overheating
- Internal 2 Hour Termination Timer from Onset of Voltage Mode Charging
- Automatic Load Switchover to Battery Power with Internal Ideal Diode and Drive Output for Optional External MOSFET
- NTC Thermistor Input
- Bad Battery Time-Out Detection
- 4mm × 3mm 12-Lead DFN Package
The LTC4067 is a USB power management and Li-Ion/ Polymer battery charger designed for portable battery powered applications. The part controls total current used by the USB peripheral for operation and battery charging. The total input current may be left unregulated, or it may be limited to 20% or 100% of the programmed value up to 1.5A (typically 500mA). Battery charge current is automatically reduced such that the sum of the load current and the charge current does not exceed the programmed input current.
With the addition of an external P-channel MOSFET the LTC4067 can withstand voltages up to 13V.
The LTC4067 includes a complete constant current/constant voltage linear charger for single cell Li-Ion batteries. The float voltage applied to the battery is held to a tight 0.4% tolerance, and charge current is programmed using an external resistor to ground. An end-of-charge status output, CHRG, indicates full charge. Also featured is an NTC thermistor input used to monitor battery temperature while charging.
The LTC4067 is available in a 12-lead low profile 4mm × 3mm DFN package.
Applications
- Automatic Battery Charging/Load Switchover
- Backup Battery Charger
- Uninterrupted Supplies
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Brochure 1
Product Selector Card 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 |
|---|---|---|---|
| LTC4067EDE#PBF | 12-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC4067EDE#TRPBF | 12-Lead DFN (4mm x 3mm 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 |
|---|---|---|
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2942 | Obsolete | Battery Gas Gauge with Temperature, Voltage Measurement |
| Hot Swap Controllers 1 | ||
|
LTC4361-1 LTC4361-2 |
Overvoltage/Overcurrent Protection Controller | |
| Interface Transceivers 1 | ||
| LTM2884 | PRODUCTION | Isolated USB Transceiver with Isolated Power |
Evaluation Kits
LTC4067EDE Demo Board | USB Power Manager with 13V OVP and 1.25A Li-Ion Charger
Resources
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