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The LTC3225EDDB-1 is a programmable supercapacitor charger specifically designed to charge two series-connected supercapacitors to a fixed output voltage (4V / 4.5V) with an input power supply as low as 2.8V to 5.5V. Automatic unit balance processing can prevent any supercapacitor from being damaged by overvoltage. No balancing resistor is required.

The low input noise, low quiescent current and low number of external components (one bridge capacitor, one bypass capacitor placed on the VIN and one programmed resistor) make the LTC3225EDDB-1 an ideal choice for small battery-powered applications.

The LTC3225EDDB-1 mainly has the following functions:

Low-noise constant-frequency charging of two series supercapacitors

Automatic unit balance processing can prevent capacitor overvoltage from occurring during the charging process

Programmable charging current (up to 150mA)

Each unit is equipped with an optional 2.4V or 2.65V regulated voltage (LTC3225)

Each unit is equipped with an optional 2V or 2.25V regulated voltage (LTC3225-1)

Automatic recharging

In standby mode, IVIN = 20μA

ICOUT < 1μA (when the input power supply is removed)

No inductor

Compact application circuit (3mm x 2mm DFN package, the height of these components is all less than 1mm)

Target application

Current-constrained applications with peak power loads (LED flashlights, PCMCIA pulse transmission, HDD pulses, GPRS/GSM transmitters)

Backup power supply

• 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.