LTC4228IGN-2

Product Overview

Category: Integrated Circuits (ICs)

Use: Power Management IC

Characteristics: - Dual Ideal Diode Controller and PowerPath Manager - Wide Operating Voltage Range: 2.9V to 18V - Low Quiescent Current: 50µA - Package Type: 16-Lead SSOP - Essence: Efficient power management and protection solution

Packaging/Quantity: Tube / 90 pieces per tube

Specifications

The LTC4228IGN-2 is a dual ideal diode controller and power path manager designed for power management applications. It operates over a wide voltage range of 2.9V to 18V, making it suitable for various electronic devices. The low quiescent current of 50µA ensures minimal power consumption.

Detailed Pin Configuration

The LTC4228IGN-2 package consists of 16 leads in a small outline package (SSOP). The pin configuration is as follows:

1. VCC1: Positive supply voltage for Channel 1
2. GND1: Ground for Channel 1
3. FLT1: Fault output for Channel 1
4. EN1: Enable input for Channel 1
5. ILIM1: Current limit setting for Channel 1
6. VCC2: Positive supply voltage for Channel 2
7. GND2: Ground for Channel 2
8. FLT2: Fault output for Channel 2
9. EN2: Enable input for Channel 2
10. ILIM2: Current limit setting for Channel 2
11. VIN: Input voltage
12. GATE1: Gate drive output for Channel 1
13. GATE2: Gate drive output for Channel 2
14. PGND: Power ground
15. VCC: Positive supply voltage
16. FLT: Fault output

Functional Features

The LTC4228IGN-2 offers the following functional features:

1. Dual Ideal Diode Controller: Enables power path selection between two input sources, providing seamless switchover and preventing reverse current flow.
2. PowerPath Manager: Efficiently manages power distribution and load sharing between multiple sources, ensuring uninterrupted power supply.
3. Fault Detection: Provides fault outputs (FLT1 and FLT2) to indicate overvoltage, undervoltage, or overcurrent conditions.
4. Enable Inputs: Allows control of each channel's operation independently.
5. Current Limit Setting: ILIM1 and ILIM2 pins enable setting the desired current limit for each channel.

Advantages and Disadvantages

Advantages: - Seamless power path selection and load sharing - Wide operating voltage range - Low quiescent current - Fault detection for enhanced protection - Independent control of each channel

Disadvantages: - Limited to 16-Lead SSOP package - May require additional external components for specific applications

Working Principles

The LTC4228IGN-2 operates by controlling the gate drive outputs (GATE1 and GATE2) to enable or disable the power paths between the input sources and the load. It utilizes ideal diode controllers to prevent reverse current flow and ensure efficient power transfer. The power path manager intelligently manages the power distribution based on the input source voltages and load requirements.

Detailed Application Field Plans

The LTC4228IGN-2 finds applications in various fields, including but not limited to: - Battery-powered devices - Portable electronics - Industrial equipment - Automotive systems - Telecom infrastructure

Detailed and Complete Alternative Models

1. LTC4412ES6-TRMPBF: Single ideal diode controller with power path selector
2. LTC4415EMSE#PBF: Dual ideal diode controller with power path selector
3. LTC4417EDD#PBF: Triple ideal diode controller with power path selector

These alternative models offer similar functionality and can be considered as alternatives to the LTC4228IGN-2 based on specific application requirements.

In conclusion, the LTC4228IGN-2 is a versatile power management IC that provides efficient power path selection and load sharing capabilities. Its wide operating voltage range, low quiescent current, and fault detection features make it suitable for various applications. The detailed pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models provide a comprehensive understanding of this product.