LTC4412HV
RECOMMENDED FOR NEW DESIGNS36V, Low Loss PowerPath™ Controller in ThinSOT
- Part Models
- 4
- 1ku List Price
- Starting From $2.93
Overview
- Very Low Loss Replacement for Power Supply OR’ing Diodes
- 3V to 36V AC/DC Adapter Voltage Range
- –40°C to 125°C Operating Temperature Range
- Minimal External Components
- Automatic Switching Between DC Sources
- Simplifies Load Sharing with Multiple Batteries
- Low Quiescent Current: 11µA
- 2.5V to 36V 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) SOT-23 (ThinSOT™) Package
- AEC-Q100 Qualified for Automotive Applications
The LTC4412HV 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 selfheating. 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 LTC4412HVs may be interconnected to allow load sharing between multiple batteries or charging of multiple batteries from a single charger. The LTC4412HV is an extended supply and temperature range version of the LTC4412.
The wide supply operating range supports operation from one to eight 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 LTC4412HV is available in a low profile (1mm) SOT-23 package.
| Supply Range | |
| LTC4412 | 2.5V - 28V (36V max) |
| LTC4412HV | 2.5V - 36V (40V max) |
Applications
- Industrial and Automotive Applications
- Notebook and Handheld Computers
- USB-Powered Peripherals
- Uninterruptible Power Supplies
- Logic Controlled Power Switch
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Design Note 1
Technical Articles 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 |
|---|---|---|---|
| LTC4412HVIS6#TRMPBF | 6-Lead TSOT-23 | ||
| LTC4412HVIS6#TRPBF | 6-Lead TSOT-23 | ||
| LTC4412HVIS6#WTRMPBF | 6-Lead TSOT-23 | ||
| LTC4412HVIS6#WTRPBF | 16(12)-Lead MSOP w/ EP |
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 |
|---|---|---|
| Ideal Diodes and PowerPath Controllers 1 | ||
| LTC4417 | RECOMMENDED FOR NEW DESIGNS | Prioritized PowerPath™ Controller |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC4412
- LTC4412HV
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.
Evaluation Kits
LTC4412/LTC4414 Demo Board | VIN1 = 2.5V to 36V/VIN2 = 5V to 36V , VOUT1 @ 2A/VOUT2 @ 8A