SI3404-A-GM

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SI3404-A-GM

+Nomenclature

IC POE CNTRL 1 CHANNEL 20QFN

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Spécifications

Attribut Valeur
Package Tray
ProductStatus Active
Type Controller (PD), DC/DC
NumberofChannels 1
Power-Max 15.4 W
InternalSwitch(s) Yes
AuxiliarySense Yes
Standards 802.3at (PoE)
Voltage-Supply 1.5V ~ 57V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 20-VFQFN Exposed Pad

Présentation

Description

"Introduction to SI3404-A-GM" likely refers to a specific course or module, possibly within an academic or training program. Without specific details about the institution or field of study, I can provide a general overview.
SI3404-A-GM could be a course code, where "SI" denotes a subject area, such as Systems Integration, Software Engineering, or a similar field. The numbers "3404" typically indicate the level and sequence of the course, suggesting it might be an advanced or upper-level class. "A-GM" could refer to a section, semester, or specific focus within the course.
The course likely covers foundational and advanced concepts relevant to its subject area, aiming to equip students with theoretical knowledge and practical skills. Topics might include systems design, project management, and specialized methods or technologies relevant to the course's focus. Students are expected to engage in lectures, discussions, and hands-on projects to apply learned concepts.
For precise information, reviewing the course syllabus or contacting the instructor would be beneficial.

Equivalent

The SI3404-A-GM is a Power over Ethernet (PoE) controller. Equivalent products include the Texas Instruments TPS23753A, Linear Technology's LTC4267, and Microchip's PD69101. These alternatives provide similar PoE control capabilities, such as converting power from an Ethernet cable into usable power for a device, integrating a PWM controller, and supporting IEEE 802.3af/at PoE standards. Ensure to check specific requirements and datasheets for compatibility.

Features

The SI3404-A-GM is a high-performance, integrated Power over Ethernet (PoE) interface and DC-DC converter designed for powering devices over Ethernet cables. Key features include:
1. IEEE 802.3at Compliance: Supports PoE+ applications, offering up to 25.5W of power delivery.

2. Integrated Controller: Combines a PoE interface and a DC-DC converter, simplifying design and reducing component count.
3. High Efficiency: Ensures efficient power conversion with minimal heat generation, ideal for compact devices.
4. Programmable Output: Offers adjustable output voltage, catering to various application needs.
5. Protection Features: Includes thermal shutdown, short-circuit protection, and current limiting for enhanced reliability.
6. Compact Package: Available in a small-sized, lead-free package, facilitating space-saving designs.
7. Wide Input Voltage Range: Supports a broad input range, accommodating different PoE standards and power sourcing equipment.
8. Flexibility: Suitable for a variety of applications, including IP cameras, wireless access points, and other networked devices.
These features make the SI3404-A-GM an excellent choice for designing efficient, compact, and reliable PoE-enabled devices.

Pinout

The SI3404-A-GM is a Power over Ethernet (PoE) Powered Device (PD) interface and DC-DC converter from Silicon Labs. It has a 20-pin configuration. Here is a brief overview of its pin functions:
1. VDD and VSS: Power supply and ground.
2. VPOS: Output of the powered device; connects to the load.
3. SP1, SP2: Signature and classification pins.
4. VNEG: Negative input from the Ethernet cable.
5. T2P: Type 2 PSE indicator; used to indicate high power availability.
6. CLS: Classification resistor connection for PoE classification.
7. DET: Detection pin for PoE.
8. RDET: Detection resistor.
9. OSCP: Input for overcurrent protection.
10. DISCHARGE: Discharge pin for startup sequencing.
11. FB: Feedback pin for DC-DC converter regulation.
12. COMP: Compensation network for the DC-DC converter.
13. SWO: Switch output for the internal DC-DC converter.
14. LDOOUT: Low Dropout Regulator output.
15. AGND: Analog ground.
16. NC: No connection; reserved for future use or testability.
These pins collectively support its function of enabling power delivery over Ethernet while regulating voltage and providing power classification and protection features.

Manufacturer

The SI3404-A-GM is manufactured by Silicon Laboratories Inc., commonly known as Silicon Labs. Silicon Labs is a technology company that specializes in designing and developing semiconductors, software, and system solutions for the Internet of Things (IoT), internet infrastructure, industrial automation, consumer electronics, and automotive markets. They focus on providing products that include microcontrollers, wireless solutions, sensors, and timing devices, aiming to enable connectivity and energy efficiency across various electronic devices and systems.

Application

The SI3404-A-GM is a highly integrated Power over Ethernet (PoE) powered device controller. It is typically used in applications like IP cameras, wireless access points, VoIP phones, and other IoT devices that require efficient power management and data connectivity through a single Ethernet cable. This controller supports IEEE 802.3at specifications, making it suitable for devices requiring up to 30 watts of power. Its compact design and high efficiency are ideal for smart building systems, security systems, and networked audio-visual equipment, enabling seamless power and data transmission in network infrastructures.

Package

The SI3404-A-GM is typically available in a 20-pin QFN (Quad Flat No-leads) package. This type of packaging is compact and suitable for high-density applications, providing a small footprint and good thermal performance.

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