LTC1733
PRODUCTIONMonolithic Linear Lithium-Ion Battery Charger with Thermal Regulation
- Part Models
- 2
- 1ku List Price
- Starting From $3.14
Overview
- Complete Linear Charger for 1-Cell Lithium-Ion Batteries
- Thermal Regulation Maximizes Charging Rate without Risk of Overheating*
- No External MOSFET, Sense Resistor or Blocking Diode Required
- Up to 1.5A Charging Current
- Preset Charge Voltage with 1% Accuracy
- Programmable Charge Current with 7% Accuracy
- Programmable Charge Termination Timer
- Tiny Thermally Enhanced 10-Pin MSOP Package
- Charge Current Monitor Useful for Gas Gauging*
- C/10 Charge Current Detection Output
- Automatic Recharge
- Thermistor Input for Temperature Qualified Charging
- AC Present Logic Output
- 4.1V/4.2V Pin Selectable Output Voltage
The LTC1733 is a standalone constant-current/constant-voltage linear charger for lithium-ion batteries with an on-chip power MOSFET. Internal thermal feedback regulates the charge current to limit die temperature during high power operation or high ambient temperature conditions. This feature allows the user to program a high charge current without risk of damaging the LTC1733 or the handheld product.
No external current sense resistor is needed and no blocking diode is required due to the internal MOSFET architecture. The charge current and charge time can be set externally with a single resistor and capacitor, respectively. When the input supply (wall adapter) is removed, the LTC1733 automatically enters a low current sleep mode, dropping the battery drain current to less than 5µA.
The LTC1733 also includes NTC temperature sensing, C/10 detection circuitry, AC present logic, 4.1V/4.2V pin selectability and low battery charge conditioning (trickle charging).
The LTC1733 is available in a 10-pin thermally enhanced MSOP package.
Applications
- Cellular Telephones
- Handheld Computers
- Digital Still Cameras
- Charging Docks and Cradles
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Design Note 1
Technical Articles 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 |
|---|---|---|---|
| LTC1733EMSE#PBF | 10-Lead MSOP w/ EP | ||
| LTC1733EMSE#TRPBF | 10-Lead MSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 12, 2022 - 22_0157 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM] |
||
| LTC1733EMSE#PBF | PRODUCTION | |
| LTC1733EMSE#TRPBF | PRODUCTION | |
|
Jun 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices |
||
| LTC1733EMSE#PBF | PRODUCTION | |
| LTC1733EMSE#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC1733EMSE#PBF | PRODUCTION | |
| LTC1733EMSE#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/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC1733
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC1733EMSE | Linear Battery Charger For One Li-Ion Cell, 1.25A Charge Current, VIN = 5V