Datasheet

AM3517, AM3505
SPRS550E –OCTOBER 2009–REVISED MARCH 2013 www.ti.com
3.5.2 Power-down Sequence
The AM3517/05 device proceeds with the power-down sequence shown below.
The following steps give an example of the power-down sequence supported by the AM3517/05
device.
1. Reset AM3517/05 device.
2. Stop all signals driven to AM3517/05.
3. Option 1: Power down all domains simutaneously.
4. Option 2: If all domains cannot be powered down simultaneously, follow the below sequence:
(a) Power off all complex I/O domains
(b) Power off core domain (VDD_CORE)
(c) Power off all PLL domains (VDDS_DPLL_MPU_USBHOST and VDDS_DPLL_PER_CORE)
(d) Power off all SRAM LDOs
(e) Power off all standard I/O domains (VDDS and VDDSHV)
90 Electrical Characteristics Copyright © 2009–2013, Texas Instruments Incorporated
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Product Folder Links: AM3517 AM3505