LTC4155
Info : RECOMMENDED FOR NEW DESIGNS
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LTC4155

Dual Input Power Manager/ 3.5A Li-Ion Battery Charger with I2C Control and USB OTG

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $3.54
Features
  • 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
Additional Details
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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
Part Models 4
1ku List Price Starting From $3.54

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC4155EUFD#PBF
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LTC4155EUFD#TRPBF
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LTC4155IUFD#PBF
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LTC4155IUFD#TRPBF
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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

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 20, 2022

- 21_0269

arrow down

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC4155EUFD#PBF

PRODUCTION

LTC4155EUFD#TRPBF

PRODUCTION

LTC4155IUFD#PBF

PRODUCTION

LTC4155IUFD#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1674A-A

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

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DC1674A-A

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

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

Product Detail

Demonstration Circuit 1674A-A is dual input power manager/3.5A Li-Ion battery charger with I2C control and USB On-The-Go (OTG). The dual input multiplexer, overvoltage protection (OVP) and reverse voltage protection (RVP) is implemented with external N-channel MOSFETs. An onboard buck regulator generates the VOUT voltage from the active input voltage. This voltage is regulated to minimize the dissipation in the battery charger. The minimum voltage of the VOUT regulator is 3.5V to provide an instant-on function when the battery is fully discharged. Most functions on the LTC4155EUFD are controlled via the I2C serial interface. The LTC4155EUFD also provides extensive status information via the I2C serial interface.

Tools & Simulations

Tools & Simulations 1

Linduino

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.

Purchase Linduino

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