TIDEP0024 Reference Design

Texas Instruments

AM437x Low Power Suspend Mode with LPDDR2

Description

This low power mode implementation realizes processor power consumption less than 0.1 mW while keeping LPDDR2 memory in self refresh consuming ~ 1.6 mW. The system solution is comprised of AM437x Sitara processor: LPDDR2 memory and TPS65218 power management IC and optimized for new low power mode along with support for legacy low power modes. The processor power is minimized by turning off all the processor power supplies except RTC power supply. System power state transitions including power supply control can be performed by single interface signal (PMIC_PWR_EN signal) with PMIC register programming.

Features
  • Suspend to RAM with the lowest system power modeAM437x in RTC-only modeTPS65218 in suspend stateLPDDR2 in self refreshSystem can resume back to the state it was before suspendingRTC-only suspend power consumptionAM43x + TPS65218: Typical 2Gb LPDDR2: 1.6 mWSuspend Events by:By programming RTC registersBy setting up the RTC alarmResume Events:RTC alarm goes offPMIC push button or AC power detectionResume TimeThis design is tested and includes schematics: BOM: and design guide.
Applications
  • Video recorder
  • HVAC gateway
  • Thermostat
  • HVAC controller
  • Fire alarm control panel (FACP)
  • Railway information
  • Occupancy detection (people tracking
  • people counting)
  • Elevator main control panel
  • Building security gateway
  • Eye
  • ear
  • nose & throat exam
  • Drone payload control
  • Analog security camera
  • IP network camera
  • Wireless security camera
Product Categories

Parts

Part Number Name Companion Part
SN74LVC1G07 SN74LVC1G07 Buy Datasheet
TPD1E10B06 TPD1E10B06 Buy Datasheet
TPS63010 TPS63010 Buy Datasheet

Bill Of Materials

Download the bill of materials for TIDEP0024 Download

Schematic

Quickly understand overall system functionality.

Download the schematic for TIDEP0024

Design File

Download ready-to-use system files to speed your design process. Get Viewer.

Download the design file for TIDEP0024

Test Data

Get results faster with test and simulation data that's been verified.

Download the test file for TIDEP0024