SPRABN2A March   2019  – December 2019 AM3352 , AM3354 , AM3356 , AM3357 , AM3358 , AM3358-EP , AM3359

 

  1.   AM335x Schematic Checklist
    1.     Trademarks
    2. 1 Introduction
    3. 2 Recommendations Specific to AM335x
      1. 2.1  Unused Signals
      2. 2.2  SYSBOOT Configuration and Required Termination
      3. 2.3  System Issues
        1. 2.3.1 Pinmux
        2. 2.3.2 Pullups
        3. 2.3.3 General Debug
        4. 2.3.4 Warm Reset
        5. 2.3.5 Peripheral Clocking
      4. 2.4  Low-Power Considerations
      5. 2.5  Clocking
      6. 2.6  General DDR Guidelines
        1. 2.6.1 DDR2
        2. 2.6.2 DDR3
      7. 2.7  MultiMedia Card/ (MMC)
      8. 2.8  Inter-Integrated Circuit (I2C)
      9. 2.9  LCD
      10. 2.10 Power
      11. 2.11 Touchscreen
        1. 2.11.1 If ADC/Touchscreen is not Used
      12. 2.12 USB
        1. 2.12.1 If USB0 or USB1 is not Used
      13. 2.13 External Interrupt (EXTINTn)
      14. 2.14 Ethernet
    4. 3 References
  2.   Revision History

2.10 Power

  • AM335x Power Solution

    • Table 1. AM335x Power Solutions

    TPS65217x TPS65218 TPS65910x TPS650250
    A B C D A A3
    Battery Charger Yes No No No
    Boost WLED Backlighting No 5 V Boost No
    AM335x OPP OPP40, OPP100 OPP50, OPP100, OPP120, Turbo, Nitro OPP50, OPP100, OPP120,
    Turbo, Nitro    		 OPP50, OPP100, OPP120,
    Turbo, Nitro    		 OPP50, OPP100
    Power 3 DCDC @ 1.2A
    4 LDO    		 3 DCDC@ 1.8 V
    1 DCDC @ 1.6A
    2 Low-q DCDC for RTC
    1 LDO and
    3 LSW    		 2 DCDC @ 1.5A
    1 DCDC @ 1A
    9 LDO    		 1 DCDC @ 1.6A
    2 DCDC @ 0.8A
    3 LDO
    Input Voltage Range 2.7 - 5.8 V 2.5 - 6.5 V 2.7 - 5.5 V 2.5 - 6.5 V
    DVFS/SmartReflex Yes Yes Yes No
    RTC-Only Mode Yes No Yes Yes No
    DDR DDR2, LPDDR1 DDR3 DDR3L DDR3, DDR3L DDR2, LPDDR1 DDR3 DDR2, LPDDR1, DDR3
    Package 48-pin QDN, 6 mm x 6 mm 32-pin QFN,
    5 mm x 5 mm    		 48-pin QFN, 6 mm x 6 mm 32-pin QFN,
    5 mm x 5 mm
    TA - 40°C to 105°C - 40°C to 85°C - 40°C to 85°C - 40°C to 85°C
  • Check the product pages on each device-specific application report when connecting the PMIC to AM335x. Also check the device-specific data sheet for specific part numbers to be used for the AM335x.
  • Ensure current capabilities of DCDC switchers and LDOs meet the maximum demand of all devices that are attached. You can find the maximum current draw of all AM335x I/O rails in the data sheet. If these rails from the PMIC also power other devices, the maximum current draw of these devices need to be taken into consideration as well.
  • Ensure I2C0 is used for communication to PMIC. All TI software distributions (Processor SDK, and so forth) assumes the use of this interface with the PMIC.