LTC4064
PRODUCTIONMonolithic Linear Charger for Back-Up Li-Ion Batteries
- Part Models
- 2
- 1ku List Price
- Starting From $3.14
Overview
- Preset 4V Charge Voltage with 1% Accuracy Prolongs 4.2V Li-Ion Battery Lifetime
- Automatic Recharge
- Thermal Regulation Maximizes Charging Rate without Risk of Overheating*
- No MOSFET, Sense Resistor or Blocking Diode Required
- Programmable Charge Termination Timer
- Thermistor Input for Temperature Qualified Charging
- Programmable Charge Current with 7% Accuracy
- C/10 Charge Current Detection Output
- 25µA Supply Current in Shutdown Mode
- Charge Current Monitor Useful for Gas Gauging*
- Charges Directly from USB Port
- Tiny Thermally Enhanced 10-pin MSOP Package
The LTC4064 is a standalone linear charger optimized for prolonging the life of 1-cell Li-ion batteries in battery backup applications. By charging to a float voltage of 4V instead of 4.2V or 4.1V, the LTC4064 decelerates the aging process and capacity degradation when the battery is unused for long periods of time but must be in a ready state.
An external capacitor programs a safety timer to terminate the charge cycle while the charge current is set externally with a single resistor. When the input supply is removed, the LTC4064 automatically enters a low current sleep mode, dropping the battery drain current to less than 3µA.
Additional safety features designed to maximize battery lifetime and reliability include NTC temperature sensing and low battery charge conditioning (trickle charging).
The IC contains an on-chip power MOSFET and eliminates the need for an external sense resistor and blocking diode. The LTC4064 also includes C/10 detection circuitry, AC present logic, and fault detection circuitry.
Applications
- File Servers, RAID Systems
- Storage Products
- Li-Ion Battery Back-Up
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 |
|---|---|---|---|
| LTC4064EMSE#PBF | 10-Lead MSOP w/ EP | ||
| LTC4064EMSE#TRPBF | 10-Lead MSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LTC4064EMSE#PBF | PRODUCTION | |
| LTC4064EMSE#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC4064EMSE#PBF | PRODUCTION | |
| LTC4064EMSE#TRPBF | PRODUCTION | |
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 |
|---|---|---|
| Overvoltage & Overcurrent Protectors 1 | ||
|
LTC4360-1 LTC4360-2 |
Overvoltage Protection Controller | |
Evaluation Kits
LTC4064EMSE | 4.0V Li-Ion Battery Charger, VIN = 4.25V to 6.3V, Bat = 4.0V @ 0.5A/1A
Resources
Latest Discussions
No discussions on LTC4064 yet. Have something to say?
Start a Discussion on EngineerZone®