Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

With advanced speaker boost and protection algorithms, the TF9891 supports the miniaturisation of portable electronic devices and audio components to maximise the effect of small speakers. It can deliver 7.2W peak output power to 8 ohm speakers from a 3.6V supply voltage. Its internal boost converter can increase the supply voltage to 9.5V, providing plenty of headroom for further improvements in sound quality.

Specifications

Type Class D  

Output type 1-channel (mono)  

Maximum output power at different loads x number of channels 3.6W x 1 @ 8 ohms  

Voltage - supply 2.7V ~ 5.5V  

Features Depop, short circuit and thermal protection  

Mounting type Surface mount type  

Operating Temperature -40°C ~ 85°C (TA)  

Supplier Device Package 49-WLCSP (3.43x2.98)  

Package / Case 49-UFBGA, WLCSP 

Applications

- Smartphones

- Tablet PCs

- Portable gaming devices

- Portable audio players

• 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.