SLVAF41A March   2021  – November 2021 TPS61094

 

  1.   Trademarks
  2. 1Introduction of the Smart Meter
  3. 2The Traditional Power Solution of the Smart Meter
    1. 2.1 Connecting the Battery Directly
    2. 2.2 The Pure Boost TPS61094 or TPS610995 Solution
  4. 3The TPS61094 with Supercap Solution
    1. 3.1 TPS61094 Description
    2. 3.2 System Operation Description
  5. 4Solution Comparison
  6. 5Supercap Behavior and Design
    1. 5.1 Supercap Life Time
    2. 5.2 Supercap Leakage Currrent
    3. 5.3 Supercap Parameter Design in TPS61094 Solution
  7. 6Test Report Based on TPS61094 Solution
    1. 6.1 Test Waveform
      1. 6.1.1 NB-IoT Data Transmission
      2. 6.1.2 Supercap Charging
    2. 6.2 Efficiency
  8. 7References
  9. 8Revision History

6.1.1 NB-IoT Data Transmission

The NB-IoT data transmission (phase 1) zoom in waveform is as shown in the Figure 6-2 and Figure 6-3. It can be seen that during high pulse current load emulating NB-IoT module, the output voltage of TPS61094 is regulated at 3.3 V to maintain normal work of system. At the same time, the output current of LiSOCl2 battery is about 5 mA or 6 mA both at -25 degC and 25 degC, so that the LiSOCl2 battery lifetime can be maximized referring Figure 1-2.

GUID-20210207-CA0I-BBK0-SDNF-KV8KN20NSJSD-low.gif Figure 6-2 The Performance of TPS61094 with Supercap Solution at -25degC
GUID-20210207-CA0I-HZCW-WHTT-QMSS89VVCP06-low.gif Figure 6-3 The Performance of TPS61094 with Supercap Solution at 25degC