LTC4412ES6#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - Ideal diode controller - Low voltage drop - Reverse input protection - Overvoltage protection - Undervoltage lockout - Fault flag output - Small package size

Package: SOT-23-6

Essence: The LTC4412ES6#TRPBF is an integrated circuit that functions as an ideal diode controller. It provides low voltage drop and protects against reverse input, overvoltage, and undervoltage conditions. The device also features a fault flag output for easy monitoring.

Packaging/Quantity: The LTC4412ES6#TRPBF is available in a SOT-23-6 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 20µA
• Maximum Continuous Current: 1A
• Reverse Leakage Current: 10µA
• Fault Flag Output Voltage: 0.4V
• Package Dimensions: 2.9mm x 1.6mm x 1.1mm

Pin Configuration

The LTC4412ES6#TRPBF has the following pin configuration:

```

---

| | --| IN OUT |-- Pin 1: Input Voltage (IN) --| GND FLT |-- Pin 2: Ground (GND) --| EN FLT |-- Pin 3: Enable (EN) --| FLT FLT |-- Pin 4: Fault Flag Output (FLT) --| GND OUT |-- Pin 5: Ground (GND) --| IN OUT |-- Pin 6: Output Voltage (OUT) |___________| ```

Functional Features

• Ideal diode controller: The LTC4412ES6#TRPBF acts as an ideal diode, allowing current flow in one direction while blocking it in the reverse direction.
• Low voltage drop: The device has a low voltage drop, minimizing power losses.
• Reverse input protection: It protects against reverse polarity connection, preventing damage to the circuit.
• Overvoltage protection: The LTC4412ES6#TRPBF safeguards the load from excessive input voltage.
• Undervoltage lockout: It ensures that the output is disabled when the input voltage falls below a certain threshold.
• Fault flag output: The fault flag pin provides a signal indicating any fault condition.
• Small package size: The SOT-23-6 package offers compactness and ease of integration.

Advantages

• Efficient power management with low voltage drop
• Protection against reverse polarity and overvoltage conditions
• Fault flag output for easy monitoring
• Compact package size allows for space-saving designs

Disadvantages

• Limited maximum continuous current of 1A
• Quiescent current of 20µA may be relatively high for some low-power applications

Working Principles

The LTC4412ES6#TRPBF operates by controlling the gate voltage of an external N-channel MOSFET. When the input voltage is higher than the output voltage, the MOSFET is turned on, allowing current flow. In this state, the LTC4412ES6#TRPBF acts as an ideal diode with a low voltage drop. If the input voltage drops below the output voltage or becomes reverse-polarized, the MOSFET is turned off, blocking current flow and protecting the load.

Application Field Plans

The LTC4412ES6#TRPBF is commonly used in various applications, including:

1. Battery-powered devices: It ensures efficient power transfer and protects against reverse battery connection.
2. Power supply switching: The device enables seamless switching between multiple power sources, preventing voltage spikes during transitions.
3. Automotive electronics: It provides reverse polarity protection and overvoltage protection for automotive circuits.
4. Portable electronics: The LTC4412ES6#TRPBF helps optimize power management in portable devices, extending battery life.

Alternative Models

• LTC4412ES6#PBF
• LTC4412ES6#TRMPBF
• LTC4412ES6#TRPBFD

These alternative models offer similar functionality and characteristics to the LTC4412ES6#TRPBF and can be considered as replacements depending on specific requirements.

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