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| 型号： | TPS659102A1RSLR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48 |
| 封装： | 6 X 6 MM, 1 MM HEIGHT, 0.40 MM PITCH, GREEN, PLASTIC, VQFN-48 |
| 文件页数： | 40/93页 |
| 文件大小： | 1014K |
| 代理商： | TPS659102A1RSLR |
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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
SWCS046I
– MARCH 2010 – REVISED JULY 2011
(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 14. SmartReflex Operation Example
32-kHz RTC CLOCK
The TPS65910 device can provide a 32-kHz clock to the platform through the CLK32KOUT output, the source of
this 32-kHz clock can be:
32-kHz crystal connected from OSC32IN to OSC32KOUT pins
A square-wave 32-kHz clock signal applied to OSC32IN input (OSC32KOUT kept floating).
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 on the Boot mode or device version (EEPROM programming):
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, taking benefit of the shorter turn-on time of the
internal RC oscillator.
Switching from the 32-kHz crystal oscillator or external square-wave clock to the RC oscillator is not supported.
Copyright
2010–2011, Texas Instruments Incorporated
45
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