LTC4155
RECOMMENDED FOR NEW DESIGNSDual Input Power Manager/ 3.5A Li-Ion Battery Charger with I2C Control and USB OTG
- Part Models
- 4
- 1ku List Price
- Starting From $4.48
Overview
- High Efficiency Charger Capable of 3.5A Charge Current
- Monolithic Switching Regulator Makes Optimal Use of Limited Power and Thermal Budget
- Dual Input Overvoltage Protection Controller
- Priority Multiplexing for Multiple Inputs
- I2C/SMBus Control and Status Feedback
- NTC Thermistor ADC for Temperature Dependent Charge Algorithms (JEITA)
- Instant-On Operation with Low Battery
- Battery Ideal Diode Controller for Power Management
- USB On-The-Go Power Delivery to the USB Port
- Full Featured Li-Ion/Polymer Battery Charger with Four Float Voltage Settings
- 28-Lead 4mm × 5mm QFN Package
The LTC4155 is a 15 watt I2C controlled power manager with PowerPath™ instant-on operation, high efficiency switching battery charging and USB compatibility. The LTC4155 seamlessly manages power distribution from two 5V sources, such as a USB port and a wall adapter, to a single-cell rechargeable Lithium-Ion/Polymer battery and a system load.
The LTC4155’s switching battery charger automatically limits its input current for USB compatibility, or may draw up to 3A from a high power wall adapter. The high efficiency step-down switching charger is designed to provide maximum power to the application and reduced heat in high power density applications.
I2C adjustability of input current, charge current, battery float voltage, charge termination, and many other parameters allows maximum flexibility. I2C status reporting of key system and charge parameters facilitates intelligent control decisions. USB On-The-Go support provides 5V power back to the USB port without any additional components. A dual-input, priority multiplexing, overvoltage protection circuit guards the LTC4155 from high voltage damage on the VBUS pin.
The LTC4155 is available in the low profile 28-lead 4mm × 5mm × 0.75mm QFN surface mount package.
Applications
- Tablet PCs
- Ultra Mobile PCs
- Video Media Players
- Digital Cameras, GPS, PDAs
- Smart Phones
- Portable Medical Devices
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Design Note 1
Technical Articles 1
Product Selector Card 1
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 |
|---|---|---|---|
| LTC4155EUFD#PBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LTC4155EUFD#TRPBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LTC4155IUFD#PBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) | ||
| LTC4155IUFD#TRPBF | 28-Lead QFN (4mm x 5mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LTC4155EUFD#PBF | PRODUCTION | |
| LTC4155EUFD#TRPBF | PRODUCTION | |
| LTC4155IUFD#PBF | PRODUCTION | |
| LTC4155IUFD#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Charger ICs 1 | ||
| LTC4099 | PRODUCTION | I2C Controlled USB Power Manager/ Charger with Overvoltage Protection |
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2942-1 | Obsolete | 1A Battery Gas Gauge with Internal Sense Resistor and Temperature/Voltage Measurement |
| Hot Swap Controllers 1 | ||
|
LTC4362-1 LTC4362-2 |
1.2A Overvoltage/Overcurrent Protector | |
| Ideal Diodes and PowerPath Controllers 2 | ||
| LTC2955 | RECOMMENDED FOR NEW DESIGNS | Pushbutton On/Off Controller with Automatic Turn-On |
| LTC4417 | RECOMMENDED FOR NEW DESIGNS | Prioritized PowerPath™ Controller |
| Interface Transceivers 1 | ||
| LTM2884 | PRODUCTION | Isolated USB Transceiver with Isolated Power |
| Temperature Sensors 1 | ||
| LTC2991 | RECOMMENDED FOR NEW DESIGNS | Octal I2C Voltage, Current, and Temperature Monitor |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC4156 | RECOMMENDED FOR NEW DESIGNS | Dual-Input Power Manager/3.5A LiFePO4 Battery Charger with I2C Control and USB OTG |
Tools & Simulations
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC4155EUFD Demo Board I VIN = 4.35V to 5.5V, Dual Input Li-Ion Charger with USB OTG, VOUT = 4.5V, VBATT = 4.05V to 4.2V @ 3.5A; DC590B Demo Board required
Resources
Software
LTC4155EUFD Demo Board I VIN = 4.35V to 5.5V, Dual Input Li-Ion Charger with USB OTG, VOUT = 4.5V, VBATT = 4.05V to 4.2V @ 3.5A; DC590B Demo Board required