LTC1760
PRODUCTIONDual Smart Battery System Manager
- Part Models
- 4
- 1ku List Price
- Starting From $13.23
Overview
- SMBus Charger/Selector for Two Smart Batteries*
- Voltage and Current Accuracy within 0.2% of Value Reported by Battery
- Simplifies Construction of “Smart Battery System Manager”
- Includes All SMBus Charger V1.1 Safety Features
- Supports Autonomous Operation without a Host
- Allows Both Batteries to Discharge Simultaneously into Single Load with Low Loss (Ideal Diode)
- SMBus Switching for Dual Batteries with Alarm Monitoring for Charging Battery at All Times
- Pin Programmable Limits for Maximum Charge Current and Voltage Improve Safety
- Fast Autonomous Power Path™ Switching (<10µs)
- Low Loss Simultaneous Charging of Two Batteries
- >95% Efficient Synchronous Buck Charger
- AC Adapter Current Limiting* Maximizes Charge Rate
- SMBus Accelerator Improves SMBus Timing**
- Available in 48-Lead TSSOP Package
The LTC1760 Smart Battery System Manager is a highly-integrated SMBus Level 3 battery charger and selector intended for products using dual smart batteries. Three SMBus interfaces allow the LTC1760 to servo to the internal voltage and currents measured by the batteries while allowing an SMBus Host device to monitor either battery’s status. Charging accuracy is determined by the battery’s internal voltage and current measurements, typically better than ±0.2%.
A proprietary PowerPath architecture supports simultaneous charging or discharging of both batteries. Typical battery run times are extended by up to 10%, while charging times are reduced by up to 50%. The LTC1760 automatically switches between power sources in less than 10μs to prevent power interruption upon battery or wall adapter removal.
The LTC1760 implements all elements of a version 1.1 “Smart Battery System Manager” except for the generation of composite battery information. An internal multiplexer cleanly switches the SMBus Host to either of the two attached Smart Batteries without generating partial messages to batteries or SMBus Host. Thermistors on both batteries are automatically monitored for temperature and disconnection information (SafetySignal).
Applications
- Portable Computers and Instruments
- Standalone Dual Smart Battery Chargers
- Battery Backup Systems
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Design Note 1
Brochure 1
Device Drivers 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 |
|---|---|---|---|
| LTC1760CFW#PBF | 48-Lead TSSOP | ||
| LTC1760CFW#TRPBF | 48-Lead TSSOP | ||
| LTC1760IFW#PBF | 48-Lead TSSOP | ||
| LTC1760IFW#TRPBF | 48-Lead TSSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2019 - 19_0009 Assembly Site Transfer of Select 48L TSSOP Products from Amkor to ATEC Philippines |
||
| LTC1760CFW#PBF | PRODUCTION | |
| LTC1760CFW#TRPBF | PRODUCTION | |
| LTC1760IFW#PBF | PRODUCTION | |
| LTC1760IFW#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Charger ICs 1 | ||
| LTM8062 | RECOMMENDED FOR NEW DESIGNS | 32VIN, 2A μModule (Power Module) Power Tracking Battery Charger |
| Ideal Diodes and PowerPath Controllers 2 | ||
| LTC2954 | RECOMMENDED FOR NEW DESIGNS | Push Button On/Off Controller with µP Interrupt |
| LTC4359 | RECOMMENDED FOR NEW DESIGNS | Ideal Diode Controller with Reverse Input Protection |
| Level Translators & Buffers 1 | ||
| LTC4307 | PRODUCTION | Low Offset Hot Swappable 2-Wire Bus Buffer with Stuck Bus Recovery |
Evaluation Kits
LTC1760CFW Demo Board | Dual Li-Ion Smart Battery Charger, VIN = 12V to 20V, Charge Current = 4A Max.