LTC4412
Info : RECOMMENDED FOR NEW DESIGNS
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LTC4412

Low Loss PowerPath Controller in ThinSOT

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 12
1ku List Price Starting From $1.79
Features
  • Very Low Loss Replacement for Power Supply OR’ing Diodes
  • Minimal External Components
  • Automatic Switching Between DC Sources
  • Simplifies Load Sharing with Multiple Batteries
  • Low Quiescent Current: 11μA
  • 3V to 28V AC/DC Adapter Voltage Range
  • 2.5V to 28V Battery Voltage Range
  • Reverse Battery Protection
  • Drives Almost Any Size MOSFET for Wide Range of Current Requirements
  • MOSFET Gate Protection Clamp
  • Manual Control Input
  • Low Profile (1mm) ThinSOT Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC4412 controls an external P-channel MOSFET to create a near ideal diode function for power switchover or load sharing. This permits highly efficient OR’ing of multiple power sources for extended battery life and low self-heating. When conducting, the voltage drop across the MOSFET is typically 20mV. For applications with a wall adapter or other auxiliary power source, the load is automatically disconnected from the battery when the auxiliary source is connected. Two or more LTC4412s may be interconnected to allow load sharing between multiple batteries or charging of multiple batteries from a single charger.

The wide supply operating range supports operation from one to six Li-Ion cells in series. The low quiescent current (11μA typical) is independent of the load current. The gate driver includes an internal voltage clamp for MOSFET protection.

The STAT pin can be used to enable an auxiliary P-channel MOSFET power switch when an auxiliary supply is detected. This pin may also be used to indicate to a microcontroller that an auxiliary supply is connected. The control (CTL) input enables the user to force the primary MOSFET off and the STAT pin low.

The LTC4412 is available in a low profile (1mm) ThinSOT package.

  Supply Range
LTC4412 2.5V – 28V (36V max)
LTC4412HV 2.5V – 36V (40V max)

Applications

  • Cellular Phones
  • Notebook and Handheld Computers
  • Digital Cameras
  • USB-Powered Peripherals
  • Uninterruptible Power Supplies
  • Logic Controlled Power Switch
Part Models 12
1ku List Price Starting From $1.79

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC4412ES6#TRMPBF
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1635A

LTC4412/LTC4414 Demo Board | VIN1 = 2.5V to 36V/VIN2 = 5V to 36V , VOUT1 @ 2A/VOUT2 @ 8A

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DC1635A

LTC4412/LTC4414 Demo Board | VIN1 = 2.5V to 36V/VIN2 = 5V to 36V , VOUT1 @ 2A/VOUT2 @ 8A

LTC4412/LTC4414 Demo Board | VIN1 = 2.5V to 36V/VIN2 = 5V to 36V , VOUT1 @ 2A/VOUT2 @ 8A

Product Detail

DC1635A Demo Board for:

LTC4412HV 36V, Low Loss PowerPath Controller in ThinSOT

LTC4414 36V, Low Loss PowerPath Controller for Large PFETs

LTC4412 Low Loss PowerPath Controller in ThinSOT

Tools & Simulations

Tools & Simulations 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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Reference Designs

Reference Designs 1

DK-START-4CGX15N Starter Kit

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altera-cyclone-iv-gx-transceiver-starter-kit

altera-cyclone-iv-gx-transceiver-starter-kit

Circuits from the lab

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Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

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