參數(shù)資料
型號： TPS65910RSLT
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PQCC48
封裝： 6 X 6 MM, 0.40 MM PITCH, GREEN, PLASTIC, VQFN-48
文件頁數(shù)： 36/86頁
文件大小： 534K
代理商： TPS65910RSLT
PRODUCTPREVIEW
OPP1
OPP2
OPP3
OPP4
OPP5
OPP Change start
OPP Change end
Coarse steps (DVFS)
Fine steps (AVS)
SWCS046-012
TSR TI2C
TSMPS
TSR TI2C
TSMPS
TSR TI2C
TSMPS
TSR TI2C
TSMPS
www.ti.com
SWCS046A – MARCH 2010 – REVISED MAY 2010
(1)
TSR: Time used by the SmartReflex controller
(2)
TI2C: Time used for data transfer through the I
2C interface
(3)
TSMPS: Time required by the SMPS to converge to new voltage value
Figure 12. SmartReflex Operation Example
32-kHz RTC CLOCK
The TPS65910 device can provide a 32-kHz clock to the platform through the CLK32KOUT output, when crystal
is connected.
Alternatively, the device can accept a square-wave 32-kHz clock signal applied to OSC32IN input (OSC32KOUT
kept floating) and gate the clock to CLK32OUT. This clock must be present for any state of the EPC except the
NO SUPPLY state. TPS65910 also has an internal 32-kHz RC oscillator, to reduce the BOM, if an accurate clock
is not needed by the system.
Default selection of a 32-kHz RC oscillator versus 32-kHz crystal oscillator or external square-wave 32-kHz clock
depends of the Boot mode:
BOOT1 = 0, BOOT0 = 1: quartz oscillator or external square wave 32-kHz clock default
BOOT1 = 0, BOOT0 = 0: 32-kHz RC oscillator default
Switching from the 32-kHz RC oscillator to the 32-kHz crystal oscillator or external square-wave 32-kHz clock
can also be programmed though DEVCTRL_REG register.
Copyright 2010, Texas Instruments Incorporated
41
Product Folder Link(s): TPS65910
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