Datasheet

TPS65910 , TPS65910A , TPS65910A3 , TPS659101
TPS659102 , TPS659103 , TPS659104 , TPS659105
TPS659106, TPS659107, TPS659108, TPS659109
www.ti.com SWCS046U –MARCH 2010–REVISED JUNE 2014
6 Detailed Description
6.1 Power Reference
The bandgap voltage reference is filtered by using an external capacitor connected across the VREF
output and the analog ground REFGND (see Section 5.3, Recommended Operating Conditions). The
VREF voltage is distributed and buffered inside the device.
6.2 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 6-1 lists the power sources provided by the TPS65910 device.
Table 6-1. 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
6.3 Embedded Power Controller
The embedded power controller manages the state of the device and controls the power-up sequence.
6.3.1 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.
Copyright © 2010–2014, Texas Instruments Incorporated Detailed Description 45
Submit Documentation Feedback
Product Folder Links: TPS65910 TPS65910A TPS65910A3 TPS659101 TPS659102 TPS659103 TPS659104
TPS659105 TPS659106 TPS659107 TPS659108 TPS659109