參數(shù)資料
型號： PTPS659109A1RSL
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, 1 MM HEIGHT, GREEN, PLASTIC,VQFN-48
文件頁數(shù)： 33/89頁
文件大?。?/td> 941K
代理商： PTPS659109A1RSL
PRODUCTPREVIEW
www.ti.com
SWCS046C – MARCH 2010 – REVISED JUNE 2010
DETAILED DESCRIPTION
POWER REFERENCE
The bandgap voltage reference is filtered by using an external capacitor connected across the VREF output and
the analog ground REFGND (see RECOMMENDED OPERATING CONDITIONS, Recommended Operating
Conditions). The VREF voltage is distributed and buffered inside the device.
POWER SOURCES
The power resources provided by the TPS65910 device include inductor-based switched mode power supplies
(SMPS) and linear low drop-out voltage regulators (LDOs). These supply resources provide the required power
to the external processor cores and external components, and to modules embedded in the TPS65910 device.
Two of these SMPS have DVS capability SmartReflex Class 3 compatible. These SMPS provide independent
core voltage domains to the host processor. The remaining SMPS provides supply voltage for the host processor
I/Os.
Table 11 lists the power sources provided by the TPS65910 device.
Table 11. Power Sources
RESOURCE
TYPE
VOLTAGES
POWER
VIO
SMPS
1.5 V / 1.8 V / 2.5 V / 3.3 V
1000 mA
VDD1
SMPS
0.6 ... 1.5 in 12.5-mV steps
1500 mA
Programmable multiplication factor: x2, x3
VDD2
SMPS
0.6 ... 1.5 in 12.5-mV steps
1500 mA
Programmable multiplication factor: x2, x3
VDD3
SMPS
5 V
100 mA
VDIG1
LDO
1.2 V, 1.5 V, 1.8 V, 2.7 V
300 mA
VDIG2
LDO
1 V, 1.1 V, 1.2 V, 1.8 V
300 mA
VPLL
LDO
1.0 V, 1.1 V, 1.8 V, 2.5 V
50 mA
VDAC
LDO
1.8 V, 2.6 V, 2.8 V, 2.85 V
150 mA
VAUX1
LDO
1.8 V, 2.5 V, 2.8 V, 2.85 V
300 mA
VAUX2
LDO
1.8 V, 2.8 V, 2.9 V, 3.3 V
150 mA
VAUX33
LDO
1.8 V, 2.0 V, 2.8 V, 3.3 V
150 mA
VMMC
LDO
1.8 V, 2.8 V, 3.0 V, 3.3 V
300 mA
EMBEDED POWER CONTROLLER
The embedded power controller manages the state of the device and controls the power-up sequence.
STATE-MACHINE
The EPC supports the following states:
No supply: The main battery supply voltage is not high enough to power the VRTC regulator. A global reset is
asserted in this case. Everything on the device is off.
Backup: The main battery supply voltage is high enough to enable the VRTC domain but not enough to switch
on all the resources. In this state, the VRTC regulator is in backup mode and only the 32-K oscillator and RTC
module are operating (if enabled). All other resources are off or under reset.
Off: The main battery supply voltage is high enough to start the power-up sequence but device power on is not
enabled. All power supplies are in OFF state except VRTC.
Active: Device power-on enable conditions are met and regulated power supplies are on or can be enabled with
full current capability.
Sleep: Device SLEEP enable conditions are met and some selected regulated power supplies are in low-power
mode.
Copyright 2010, Texas Instruments Incorporated
39
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