SLVAFC9 August   2022 TPS61094

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction of Solar Cell and MPPT
    1. 1.1 Traditional MPPT Solution
  4. 2Typical System with Solar cell
    1. 2.1 General Introduction
    2. 2.2 Specific End Equipment
      1. 2.2.1 System Requirements
  5. 3TPS61094 Solution
    1. 3.1 Supercap and Battery Design
    2. 3.2 Solar Panel Design
    3. 3.3 TPS61094 Description and Operation
    4. 3.4 System Solution
  6. 4Test Report Based on TPS61094 Solution
    1. 4.1 Test Waveform
  7. 5References

3.3 TPS61094 Description and Operation

The TPS61094 is a synchronous bi-directional buck/boost converter with a bypass switch between input and output. When the TPS61094 works in buck mode to charge the supercap, the charging current and the charging termination voltage are programmable with two external resistors (R3 and R2). When the TPS61094 works in boost or supplement mode, it can boost the supercap and regulate output voltage to the programmed voltage, set by R1. Figure 3-2 shows the typical application of TPS61094.

Figure 3-2 Typical Application of TPS61094

The TPS61094 has four operation modes: the auto buck or boost mode; the force buck mode; the force bypass mode and the true shutdown mode, set by the EN and MODE pins. Customers can choose the suitable mode based on their applications (TPS61094 60-nA Quiescent Current Bi-directional Buck/Boost Converter with bypass Mode).