SCEA113 October   2021 TPS650861 , TPS650864

 

  1.   Trademarks
  2. 1Introduction
  3. 2TPS65086x Overview
  4. 3TPS65086x Variants
  5. 4TPS65086x Selection Guide
  6. 5TPS650861 Programming Information
  7. 6Example Power Maps
    1. 6.1 Always On: Power and Efficiency Optimized (-1L and -2L devices)
    2. 6.2 Always On: Cost Optimized (-1 and -2 devices)
    3. 6.3 Always On: PL Performance Optimized (-3 Devices)
    4. 6.4 Full Power Domain (All speed grades)
  8. 7Conclusion

6.1 Always On: Power and Efficiency Optimized (-1L and -2L devices)

Figure 6-1 shows an example power map for the Power and Efficiency Optimized configuration. The rails shown follow the settings of the pre-programmed TPS6508641; however, as discussed in Section 5, the TPS650861 can also be used in this configuration.

Figure 6-1 Always On, Power and Efficiency Optimized Power Map Using the TPS6508641 or TPS650861
  1. See Table 6-1 for discrete buck selection guide.
  2. For EV devices: if using the TPS650861, set either Buck 4 or 5 to 0.9 V. If using the TPS6508641, add the TPS543620 discrete buck to power the VCCINT_VCU rail
Table 6-1 Discrete Buck Selection Guide
Current Range Discrete Buck Vin
3 - 6 A TPS5436201 4 - 18 V
6 - 8 A TPS5438201 4 - 18 V
8 - 15 A TPS542A52 4 - 18 V
15 - 25 A TPS543B202 4 - 19 V
25 - 40 A TPS543C20A2 4 - 16 V
  1. TPS543620 and TPS543820 are pin to pin compatible
  2. TPS543B20 and TPS543C20A are pin to pin compatible