Texas Instruments | AM335x PMIC Selection (Rev. A) | Application notes | Texas Instruments AM335x PMIC Selection (Rev. A) Application notes

Texas Instruments AM335x PMIC Selection (Rev. A) Application notes
AM335x PMIC Selection Guide
FEATURE
REGULATORS
SPEED GRADE
SUPPORTED (MHz)
OTHER FEATURES
TPS65216
TPS650250
TPS65910
TPS65217
TPS65218D0
4 DC/DCs, 1 LDO
3 DC/DCs, 2 LDOs
3 DC/DCs, 9 LDOs
3 DC/DCs, 4 LDOs
6 DC/DCs, 1 LDOs
300, 600, 720, 800, 1000
300, 600
● 1 load switch
● Power-Fail comparator
● Supports warm-reset
● Power-fail comparator
● 1 RTC LDO
300, 600, 720, 800, 1000 300, 600, 720, 800, 1000 300, 600, 720, 800, 1000
● 5 V boost (100 mA)
● 1 RTC LDO
● 2 LDOs configurable
as load switches
● WLED backlight driver
● 3 load switches
● 1 buck-boost
● Power-Fail comparator
● Supports warm-reset
● 2 RTC DC/DCs
✕
CHARGER
✕
✕
✕
✓
RTC
✕
✕
✓
✕
✕
3.6–5.5 V
2.5–6.0 V
2.7–5.5 V
3.3–5.5 V (1)
2.7–5.5 V
✓
✕
✓
✓
✓
✕
✕
✕
VOLTAGE RANGE
DYNAMIC VOLTAGE
SETTING
✓
SUPERVISOR
(2)
✓
(2)
POWER
SEQUENCING
✓
✕
✓
✓
✓
I2C INTERFACE
✓
✕
✓
✓
✓
TEMPERATURE
RANGE
-40–105°C
-40–85°C,
-40–125°C (Q1)
-40–85°C
-40–105°C
-40–105°C
DDR2, DDR3, DDR3L,
DDR4
DDR2, DDR3
DDR2, DDR3
DDR2, DDR3, DDR3L
DDR2, DDR3, DDR3L,
DDR4
MEMORY SUPPORT
48-pin QFN
PACKAGE
48-pin QFN
32-pin QFN
2
6x6-mm , 0.4-mm pitch
2
5x5-mm , 0.5-mm pitch
48-pin QFN
2
6x6-mm , 0.4-mm pitch
48-pin QFN
2
6x6-mm , 0.4-mm pitch
6x6-mm2, 0.4-mm pitch;
48-pin HTQFP
9x9-mm2, 0.5-mm pitch
USER'S GUIDE
HARDWARE
DESIGN
(1)
(2)
SPRUIP2
SLVU731
SWCU093
SLVU551
SLVUAA9
—
TIDA-00299
TIDEP0003
BeagleBone
TIDEP0024
20-V tolerant for line power on AC pin
Configurable +/-4% or +/-5% tolerance
TPS65216 – Cost Optimized PMIC
The TPS65216 device is a single-chip PMIC designed
to power the AMIC110 and AMIC120 families of
processors in lined-powered (5 V) applications. The
TPS65216 device can also power the AM335x family
of processors in always-on applications. The
TPS65216 device provides four DC/DC converters,
one LDO, and integrated power sequencing. By
integrating the power sequencing, users can save cost
from discrete external sequencing components
necessary for the AMIC1x and AM335x family of
processors. The TPS65216 device has a streamlined
feature set, making it perfect for systems that only
require a simple power configuration. This PMIC, when
used in conjunction with the AMIC110 processor, are
ideal for EtherCAT® (Ethernet for Control Automation
Technology) applications. When used with the AM335x
processor, the TPS65216 is suitable for grid
infrastructure applications such as smart meters and
data concentrators. The TPS65216 device integrates
only the minimum required feature set, making it a
cost-optimized, fully-integrated solution.
TPS650250 – Wide Temperature Range PMIC
The TPS650250 device is a single-chip PMIC
designed to power the AM335x family of processors in
lined-powered (5 V) applications. The TPS650250
device can power the AM335x family of processors
supporting 300- and 600-MHz frequencies. The
TPS650250 device can also power the AMIC110
processor. The TPS650250 device features three
DC/DC converters, two LDOs, and has a maximum
temperature range up to 125°C. The TPS650250
device has external enable pins for sequencing.
Because the TPS650250 device has a maximum
temperature range up to 125°C, the PMIC is suitable
for automotive applications such telematics, cluster, or
industrial applications which commonly require 105°C
components.
SLVAEE2A – July 2019 – Revised September 2019
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Copyright © 2019, Texas Instruments Incorporated
AM335x PMIC Selection Guide
1
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TPS65910 – Most Integrated PMIC
The TPS65910x device is an integrated PMIC
designed for applications powered by one Li-ion
battery cell or a 5-V input adapter and can supply
multiple power rails. The TPS65910x device is the
most integrated PMIC for the Sitara™ AM335x
processor family. The TPS65910 device can power the
AM335x family of processors supporting 300-, 600-,
720-, 800-, and 1000-MHz frequencies. Of the
AM335x solutions, the TPS65910 has the largest
amount of rails, making it a full-system PMIC.
Specifically, the TPS65910x device provides three
DC/DC converters and nine LDOs. This gives the
TPS65910x device the ability to power an entire
system, including the processor and system
peripherals. An example application where a fullsystem PMIC might be needed is in video surveillance
systems. Video surveillance systems require power
hungry processors as well as many peripherals such
as microphones, speakers, LCDs, and wired or
wireless connectivity. The biggest benefit of the
TPS65910 device is that it can integrate a full system
into a single package to reduce the number of
components and overall solution size.
TPS65217 – Included Linear Charger PMIC
The TPS65217x device is a single-chip PMIC
designed to power the AM335x in portable and linedpowered (5 V) applications. The TPS65217x device
can power the AM335x family of processors
supporting 300-, 600-, 720-, 800-, and 1000-MHz
frequencies. The PMIC features three DC/DC
converters and four LDOs, and a linear charger. Of the
AM335x solutions, the TPS65217 device is the only
solution with a linear charger, making it perfect for
portable battery-operated systems. Discrete battery
charger circuits can consume valuable board realestate. When combining discrete power regulators,
power-up and power-down sequencing, and a discrete
linear charger circuit, in addition to accounting for
space between discrete components, fitting a discrete
power solution in a small area can be challenging.
Portable battery-operated systems like blood glucose
2
AM335x PMIC Selection Guide
meters, which might have limited board space, can
benefit from the TPS65217 device because the
devices integrates all the necessary DC/DC
converters, LDOs, sequencing, and the charging circuit
to provide an overall smaller power solution.
TPS65218D0 – Lowest Power Consumption PMIC
The TPS65218D0 device is a single-chip user
programmable PMIC that powers the Sitara AM335x
processor family for portable (Li-Ion battery) and linedpowered (5 V) applications. The TPS65218D0 device
can power the AM335x family of processors
supporting 300-, 600-, 720-, 800-, and 1000-MHz
frequencies. Of the AM335x PMIC options, the
TPS65218D0 device supports the lowest power
consumption mode for the AM335x (Real-time clock
[RTC]) compared to the available options, making it
the most power efficient. The TPS65218D0 device
provides five buck converters, one LDO, three load
switches, and a buck-boost converter. The
TPS65218D0 buck-boost converter is useful for 1-cell
battery systems because of its ability to boost voltage
or buck voltage. 1-cell batteries have an output of
approximately 2.7 V to 3.5 V. Because one of the most
common power rails is 3.3 V, the buck-boost converter
can increase or decrease the 1-cell battery voltage to
achieve a regulated 3.3-V power rail in portable
applications. Another feature of the TPS65218D0
device is that it can also be powered by a back-up
battery. In low-battery scenarios where data can
potentially be lost, a back-up battery ensures that
important data is saved and maintained. An example
where a back-up battery support is desired is
Electronic Point of Sale (EPoS) systems. EPoS
systems record what sales are made, and can take
data, process, and store the information for business
transactions. If a scenario occurs where the system is
disconnected from a power adapter or from a Li-ion
battery supply, the TPS65218D0 device can switch
between power supplies, ensuring power is maintained
so that important business data can be saved.
SLVAEE2A – July 2019 – Revised September 2019
Submit Documentation Feedback
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