Overview
The LTC4412ES6#WTRMPBF, produced by Analog Devices Inc., is a highly efficient power management IC designed to control an external P-channel MOSFET. This device creates a near-ideal diode function, which is ideal for power switchover or load sharing applications. It operates within a wide temperature range and is available in various packages, including the 6-pin TSOT-23 package. The LTC4412 is particularly useful in systems that require automatic switching between different power sources, such as batteries and wall adapters, or in dual battery load sharing configurations.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| VIN, VSENSE Operating Supply Range | For Proper Operation | 2.5 | 28 | V | |
| IQFL Quiescent Supply Current at Low Supply | VIN = 3.6V, VSENSE = 3.5V to 3.6V | 11 | 19 | µA | |
| IG(SNK) Dynamic Pull-Down Current | 50 | µA | |||
| VG(ON) Gate Clamp Voltage | 7V below the higher of VIN or VSENSE | V | |||
| Operating Temperature Range | -40°C | 150°C | °C |
Key Features
- Creates a near-ideal diode function using an external P-channel MOSFET, ensuring high efficiency in power switchover and load sharing applications.
- Automatic power source selection between primary and auxiliary supplies.
- Low quiescent current, reducing power consumption in standby modes.
- Wide operating supply range from 2.5V to 28V.
- Dynamic pull-down current of 50µA to quickly turn on the MOSFET.
- Gate clamp voltage ensures the MOSFET operates within safe limits.
- Available in 6-pin TSOT-23 package, suitable for compact designs.
Applications
- Automatic power switching between a battery and a wall adapter.
- Dual battery load sharing with automatic switchover of power from batteries to wall adapter.
- Low loss PowerPath controller in thin SOT packages.
- Power management in portable electronics, such as laptops and handheld devices.
- Automotive systems requiring reliable and efficient power management.
Q & A
- What is the primary function of the LTC4412ES6#WTRMPBF?
The primary function is to control an external P-channel MOSFET to create a near-ideal diode for power switchover or load sharing.
- What is the operating supply range of the LTC4412ES6#WTRMPBF?
The operating supply range is from 2.5V to 28V.
- What is the quiescent supply current at low supply voltage?
The quiescent supply current at low supply voltage is between 11µA and 19µA.
- How does the LTC4412ES6#WTRMPBF handle power source selection?
The device automatically selects between primary and auxiliary power sources based on the voltage levels.
- What is the dynamic pull-down current of the LTC4412ES6#WTRMPBF?
The dynamic pull-down current is 50µA.
- What is the gate clamp voltage of the LTC4412ES6#WTRMPBF?
The gate clamp voltage is 7V below the higher of VIN or VSENSE.
- What are the typical applications of the LTC4412ES6#WTRMPBF?
Typical applications include automatic power switching between battery and wall adapter, dual battery load sharing, and low loss PowerPath control.
- What package type is the LTC4412ES6#WTRMPBF available in?
The device is available in a 6-pin TSOT-23 package.
- What is the operating temperature range of the LTC4412ES6#WTRMPBF?
The operating temperature range is from -40°C to 150°C.
- Is the LTC4412ES6#WTRMPBF compliant with automotive standards?
No, the LTC4412ES6#WTRMPBF is not specifically designed for automotive applications, but there are automotive-grade versions available with the #W suffix.
