Datasheet

TPS65950
SWCS032E–OCTOBER 2008–REVISED JANUARY 2011 www.ti.com
4.4 Power Consumption
Table 4-22 describes the power consumption, depending on the use cases.
NOTE
Typical power consumption is obtained in nominal operating conditions with the TPS65950 in
stand-alone mode.
Table 4-22. Power Consumption
Mode Description Typical Consumption
Only the RTC date is maintained with a couple of registers in the
Backup backup domain. No main source is connected. Consumption is on the VBAT not present 2.25 * 3.2 = 7.2 μW
backup battery.
The phone is apparently off for the user, a main battery is present and
well-charged. The RTC registers (registers in the backup domain) are
Wait-on VBAT = 3.8 V 64 * 3.8 = 243.2 μW
maintained. Wake-up capabilities (like the PWRON button) are
available.
The subsystem is powered by the main battery, all supplies are
Active No Load enabled with full current capability, internal reset is released, and the VBAT = 3.8 V 3291 * 3.8 = 12505 μW
associated processor is running.
The main battery powers the subsystem, selected supplies are
Sleep No Load enabled but in low-consumption mode, and the associated processor is VBAT = 3.8 V 496 * 3.8 = 1884.4 μW
in low-power mode.
Table 4-23 lists the regulator states for each mode.
Table 4-23. Regulator States Depending on Use Cases
Mode
Regulator
Backup Wait-On Sleep No Load Active No Load
VAUX1 OFF OFF OFF OFF
VAUX2 OFF OFF SLEEP ON
VAUX3 OFF OFF OFF OFF
VAUX4 OFF OFF SLEEP ON
VMMC1 OFF OFF OFF OFF
VMMC2 OFF OFF SLEEP ON
VPLL1 OFF OFF SLEEP ON
VPLL2 OFF OFF SLEEP ON
VSIM OFF OFF OFF OFF
VDAC OFF OFF OFF OFF
VINTANA1 OFF OFF SLEEP ON
VINTANA2 OFF OFF SLEEP ON
VINTDIG OFF OFF SLEEP ON
VIO OFF OFF SLEEP ON
VDD1 OFF OFF SLEEP ON
VDD2 OFF OFF SLEEP ON
VUSB_1V5 OFF OFF OFF OFF
VUSB_1V8 OFF OFF OFF OFF
VUSB_3V1 OFF OFF SLEEP SLEEP
58 Power Module Copyright © 2008–2011, Texas Instruments Incorporated
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