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TPS259461LRPWR Application Apple Macbook AIR/5.5V Electronic Fuse

The TPS25946xx 2.7V to 23V 5.5A electronic fuses are a highly integrated circuit protection and power management solution in a small package. These devices require few external components to provide multiple protection modes and are highly effective against overloads, short circuits, voltage surges and excessive inrush currents. With the integrated back-to-back FETs, the devices enable bi-directional current flow in the on state and can block current flow in both directions in the off state. This feature makes it ideal for use in USB OTG (On-The-Go) applications.

The output slew rate and inrush current can be adjusted using a single external capacitor. If the input exceeds the adjustable overvoltage threshold, the load is protected from input overvoltage conditions by cutting off the output. The device responds to output overloads by actively limiting the current. The output current limit threshold as well as the transient overcurrent extinction timer are user adjustable. The current limit control pin can also be used as an analog load current monitor.

The TPS25946xx is available in a 2mm x 2mm, 10-pin HotRod QFN package for improved thermal performance and reduced system footprint. The device has an operating junction temperature range of -40°C to +125°C.

Features

Wide operating input voltage range: 2.7V to 23V

Absolute maximum of 28V

Integrated back-to-back FET with low on-resistance (ROn = 28.3mΩ (typical))

Bidirectional current flow in on state

Reverse current blocking in the off state

Fast overvoltage protection

Adjustable overvoltage lockout (OVLO) with a response time of 1.2µs (typical)

Forward overcurrent protection with load current monitor output (ILM)

Active current limit response

Adjustable threshold (ILIM): 0.5A to 6A

Accuracy at ILIM>1A: ±10%

Adjustable transient extinction timer (ITMER) for up to 2 x ILIM peak currents

Output load current monitoring accuracy: ±6% (IOUT≥1A)

Fast trip response for OUT pin short circuit protection

Response time: 500ns (typical)

Adjustable (2 x ILIM) and fixed thresholds

Active high enable input with adjustable undervoltage lockout threshold (UVLO)

Adjustable output slew rate control (dVdt)

Over-temperature protection

Power good indication (PG) with adjustable threshold (PGTH)

UL 2367 certification (in progress)

IEC 62368 CB approval (in progress)

Small footprint: QFN 2mm x 2mm, 0.45mm pin spacing

Applications

USB On-The-Go (OTG)

Smartphones

Tablet PCs

Digital cameras

Point-of-Sale Terminals

Wireless chargers

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.