LT1513
PRODUCTIONSEPIC Constant- or Programmable-Current/Constant-Voltage Battery Charger
- Part Models
- 10
- 1ku List Price
- Starting From $6.55
Overview
- Charger Input Voltage May Be Higher, Equal to or Lower Than Battery Voltage
- Charges Any Number of Cells Up to 20V
- 1% Voltage Accuracy for Rechargeable Lithium Batteries
- 100mV Current Sense Voltage for High Efficiency (LT1513)
- 0mV Current Sense Voltage for Easy Current Programming (LT1513-2)
- Battery Can Be Directly Grounded
- 500kHz Switching Frequency Minimizes Inductor Size
- Charging Current Easily Programmable or Shut Down
The LT1513 is a 500kHz current mode switching regulator specially configured to create a constant- or programmable-current/constant-voltage battery charger. In addition to the usual voltage feedback node, it has a current sense feedback circuit for accurately controlling output current of a flyback or SEPIC (Single-Ended Primary Inductance Converter) topology charger. These topologies allow the current sense circuit to be ground referred and completely separated from the battery itself, simplifying battery switching and system grounding problems. In addition, these topologies allow charging even when the input voltage is lower than the battery voltage. The LT1513 can also drive a CCFL Royer converter with high efficiency in floating or grounded mode.
Maximum switch current on the LT1513 is 3A. This allows battery charging currents up to 2A for a single lithium-ion cell. Accuracy of 1% in constant-voltage mode is perfect for lithium battery applications. Charging current can be easily programmed for all battery types.
Applications
- Charging of NiCd, NiMH, Lead-Acid or Lithium Rechargeable Cells
- Precision Current Limited Power Supply
- Constant-Voltage/Constant-Current Supply
- Transducer Excitation
- Universal Input CCFL Driver
Documentation
Data Sheet 1
Application Note 3
Design Note 2
Brochure 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 |
|---|---|---|---|
| LT1513-2CR#PBF | 7-Lead DD Pak | ||
| LT1513-2CR#TRPBF | 7-Lead DD Pak | ||
| LT1513-2CT7#PBF | 7-Lead TO-220 | ||
| LT1513-2IR#PBF | 7-Lead DD Pak | ||
| LT1513-2IR#TRPBF | 7-Lead DD Pak | ||
| LT1513-2IT7#PBF | 7-Lead TO-220 | ||
| LT1513CR#PBF | 7-Lead DD Pak | ||
| LT1513CR#TRPBF | 7-Lead DD Pak | ||
| LT1513IR#PBF | 7-Lead DD Pak | ||
| LT1513IR#TRPBF | 7-Lead DD Pak |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 10, 2022 - 22_0175 Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark |
||
| LT1513-2CR#PBF | PRODUCTION | |
| LT1513-2CR#TRPBF | PRODUCTION | |
| LT1513-2CT7#PBF | PRODUCTION | |
| LT1513-2IR#PBF | PRODUCTION | |
| LT1513-2IR#TRPBF | PRODUCTION | |
| LT1513-2IT7#PBF | PRODUCTION | |
| LT1513CR#PBF | PRODUCTION | |
| LT1513CR#TRPBF | PRODUCTION | |
| LT1513IR#PBF | PRODUCTION | |
| LT1513IR#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 1 | ||
| LTC4020 | RECOMMENDED FOR NEW DESIGNS | 55V Buck-Boost Multi-Chemistry Battery Charger |
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2942-1 | Obsolete | 1A Battery Gas Gauge with Internal Sense Resistor and Temperature/Voltage Measurement |
| Circuit Monitors 1 | ||
| LTC2960 | RECOMMENDED FOR NEW DESIGNS | 36V Nano-Current Two-Input Voltage Monitor |
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| Overvoltage & Overcurrent Protectors 1 | ||
| LTC4365 | RECOMMENDED FOR NEW DESIGNS | Overvoltage, Undervoltage and Reverse Supply Protection Controller |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC4020 | RECOMMENDED FOR NEW DESIGNS | 55V Buck-Boost Multi-Chemistry Battery Charger |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT1513
- LT1513-2
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.