LTC4000
RECOMMENDED FOR NEW DESIGNSHigh Voltage High Current Controller for Battery Charging and Power Management
- Part Models
- 8
- 1ku List Price
- Starting From $5.43
Overview
- Complete High Performance Battery Charger When Paired with a DC/DC Converter
- Wide Input and Output Voltage Range: 3V to 60V
- Input Ideal Diode for Low Loss Reverse Blocking and Load Sharing
- Output Ideal Diode for Low Loss PowerPath™ and Load Sharing with the Battery
- Instant-On Operation with Heavily Discharged Battery
- Programmable Input and Charge Current: ±1% Accuracy
- ±0.25% Accurate Programmable Float Voltage
- Programmable C/X or Timer Based Charge Termination
- NTC Input for Temperature Qualified Charging
- 28-Lead 4mm × 5mm QFN or SSOP Packages
The LTC4000 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers.
Features of the LTC4000’s battery charger include: accurate (±0.25%) programmable float voltage, selectable timer or current termination, temperature qualified charging using an NTC thermistor, automatic recharge, C/10 trickle charge for deeply discharged cells, bad battery detection and status indicator outputs. The battery charger also includes precision current sensing that allows lower sense voltages for high current applications.
The LTC4000 supports intelligent PowerPath control. An external PFET provides low loss reverse current protection. Another external PFET provides low loss charging or discharging of the battery. This second PFET also facilitates an instant-on feature that provides immediate downstream system power even when connected to a heavily discharged or short faulted battery.
The LTC4000 is available in a low profile 28-lead 4mm × 5mm QFN and SSOP packages.
| LTC4000 | LTC4000-1 | |
| Input Voltage Regulation MPPC | No | Yes |
| Input Current Monitoring | Yes | Yes |
| Input Current Regulation | Yes | No |
Applications
- High Power Battery Charger Systems
- High Performance Portable Instruments
- Industrial Battery Equipped Devices
- Notebook/Subnotebook Computers
Documentation
Data Sheet 1
User Guide 3
Technical Articles 3
Video 1
Brochure 2
Book & eBook 1
Product Selector Card 3
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 |
|---|---|---|---|
| LTC4000EGN#PBF | 28-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4000EGN#TRPBF | 28-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4000EUFD#PBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LTC4000EUFD#TRPBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LTC4000IGN#PBF | 28-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4000IGN#TRPBF | 28-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4000IUFD#PBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LTC4000IUFD#TRPBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking |
||
| LTC4000EGN#PBF | PRODUCTION | |
| LTC4000EGN#TRPBF | PRODUCTION | |
| LTC4000IGN#PBF | PRODUCTION | |
| LTC4000IGN#TRPBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0177 Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL |
||
| LTC4000EGN#PBF | PRODUCTION | |
| LTC4000EGN#TRPBF | PRODUCTION | |
| LTC4000IGN#PBF | PRODUCTION | |
| LTC4000IGN#TRPBF | PRODUCTION | |
|
Jan 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LTC4000EUFD#PBF | PRODUCTION | |
| LTC4000EUFD#TRPBF | PRODUCTION | |
| LTC4000IUFD#PBF | PRODUCTION | |
| LTC4000IUFD#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 |
|---|---|---|
| Battery Charger ICs 2 | ||
| LTC4020 | RECOMMENDED FOR NEW DESIGNS | 55V Buck-Boost Multi-Chemistry Battery Charger |
| LTM8061 | RECOMMENDED FOR NEW DESIGNS | 32V, 2A μModule (Power Module) Li-Ion/Polymer Battery Charger |
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2943 | NOT RECOMMENDED FOR NEW DESIGNS | Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement |
| Interface Transceivers 1 | ||
| LTM2884 | PRODUCTION | Isolated USB Transceiver with Isolated Power |
Tools & Simulations
LTspice 4
- LT3845A - Step-Down (Buck) Regulators, LTC4000 - Battery Management
- LTC3890-3/LTC4000 Demo Circuit - 60V Input DC/DC Power Supply with Battery Backup (18-60V to 3.3V @ 2A)
- LTC4000/LTC3891 Demo Circuit - High Voltage High Current Step-Down Converter, Power Path Controller & Li-Ion Battery Charger (24-60V to 16.8V @ 6.0A)
- LTC4000/LT3845A Demo Circuit - High Voltage, High Current Buck Converter and 3-Series LiFePO4 Battery Charger (15-60V to 12V @ 15A)
Models for the following parts are available in LTspice:
- LTC4000
- LTC4000-1
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.
