LM3526M-H

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IC PWR SWITCH P-CHAN 1:2 8SOIC

  • FabricanteTexas Instruments

  • Peça do Fabricante #LM3526M-H

  • Pacote SOIC-8

  • Em Estoque2047

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Especificações

Atributo Valor
Package / Case Tube
Part Status Active
Switch Type USB Switch
Number of Outputs 2
Ratio - Input: Output 1:2
Output Configuration High Side
Output Type P-Channel
Interface On/Off
Voltage - Load 2.7V ~ 5.5V
Voltage - Supply (Vcc/Vdd) Not Required
Current - Output (Max) 500mA
Rds On (Typ) 100mOhm
Input Type Non-Inverting
Features Status Flag
Fault Protection Current Limiting (Fixed), Over Temperature, UVLO
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Supplier Device Package 8-SOIC

Visão Geral

Description

The LM3526M-H is an integrated power switch designed for USB applications. It is manufactured by Texas Instruments and specifically caters to power distribution and protection needs in USB ports. The "M-H" denotes its package and temperature range specifications. The device features two independent power switches with current limiting and over-temperature protection, ensuring safety and reliability in operation.
Key features of the LM3526M-H include:
1. Current Limiting: This protects connected devices from excessive current draw.
2. Thermal Shutdown: Prevents damage to the switch in case of overheating.
3. Short-Circuit Protection: Automatically cuts off power in case of a short circuit.
4. Enable and Fault Indicators: These functions provide control and status feedback, allowing for easy monitoring and management.
5. Under-Voltage Lockout: Ensures that the device operates within safe voltage levels.
The LM3526M-H is commonly used in laptops, desktops, and other consumer electronic devices where USB power management is a priority. Its robust protection features make it an ideal choice for safeguarding USB circuitry.

Equivalent

The LM3526M-H chip is a dual port USB power switch from Texas Instruments. Equivalent products might include similar USB power switch ICs from other manufacturers, such as:
1. TPS2042B from Texas Instruments
2. AP2141 from Diodes Incorporated
3. MIC2026 from Microchip Technology
4. MAX14521A from Maxim Integrated
Make sure to compare the specific features, voltage, current ratings, and package types to ensure compatibility with your design needs.

Features

The LM3526M-H is a USB power switch and over-current protection device. Key features include:
1. Power Distribution Switch: Designed for self-powered and bus-powered USB applications.

2. Over-Current Protection: Automatically limits the output current to a safe level to prevent damage to downstream devices.
3. Thermal Shutdown: Protects the device by disabling the output during over-temperature conditions.
4. Short-Circuit Protection: Responds quickly to prevent damage when a short circuit is detected.
5. Controlled Turn-On: Soft-start feature to control inrush current and prevent voltage drop on input power sources.
6. Fault Reporting: An open-drain fault flag provides an alert for over-current or over-temperature events.
7. Low On-Resistance: Ensures efficient operation with minimal power loss.
8. Reverse Current Blocking: Prevents current from flowing back into the power source.
9. Compact Package Options: Available in space-saving surface-mount packages suitable for design-constrained applications.
Overall, the LM3526M-H offers robust protection and efficient power management for USB devices, enhancing reliability and reducing the risk of damage from electrical faults.

Pinout

The LM3526M-H is a dual-port USB power switch and over-current protection device. It typically comes in a 14-pin SOIC (Small Outline Integrated Circuit) package. Its primary function is to manage power distribution and provide over-current protection for USB ports. The device is designed to provide the necessary power to the USB ports while safeguarding against over-current conditions that could potentially damage connected devices or the system itself.
Key features of the LM3526M-H include current limiting, thermal shutdown, and under-voltage lockout to ensure reliable operation. It also offers controlled rise and fall times to reduce inrush current during device connection and disconnection, enhancing the safety and stability of the USB power system.
In essence, the LM3526M-H is crucial for systems that require reliable and safe power management for USB ports, particularly in applications where multiple USB devices are connected and powered simultaneously.

Manufacturer

The LM3526M-H is manufactured by Texas Instruments. Texas Instruments is a global technology company known for designing and manufacturing semiconductors and various integrated circuits. It serves a wide range of industries, including automotive, industrial, personal electronics, and communications equipment. The company is renowned for its analog chips and embedded processors, which are essential components in electronic devices.

Application

The LM3526M-H is a dual port USB power switch and over-current protection IC, primarily used in USB applications. Its key application areas include:
1. USB Hubs: Providing power control and over-current protection for USB ports.
2. PC Motherboards: Managing USB port power and protection.
3. Peripheral Devices: Ensuring safe power delivery for devices like printers and external storage.
4. Consumer Electronics: Facilitating reliable power management in gadgets with USB connectivity.
5. Mobile Device Chargers: Offering efficient power distribution and protection.
6. Networking Equipment: Managing power for USB ports in routers and switches.
The device is ideal for applications requiring robust power management and protection in USB-powered systems.

Package

The LM3526M-H is a power switch IC typically available in a surface-mount package type, specifically a SOIC (Small Outline Integrated Circuit) package. This packaging is designed for mounting on a printed circuit board (PCB) and is commonly used for its compactness and ease of use in electronic applications.

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