TPS65217 Datasheet, PDF (1/89 Pages) Texas Instruments – Single-Chip PMIC for Battery-Powered Systems

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TPS65217
SLVSB64G – NOVEMBER 2011 – REVISED JANUARY 2015
TPS65217x Single-Chip PMIC for Battery-Powered Systems
1 Features
•1 CHARGER/POWER PATH
– 2-A Output Current on Power Path
– Linear Charger; 700-mA Maximum Charge
Current
– 20-V Tolerant USB and AC Inputs
– Thermal Regulation, Safety Timers
– Temperature Sense Input
• STEP-DOWN CONVERTER (DCDC1, 2, 3)
– Three Step-Down Converter With Integrated
Switching FETs
– 2.25-MHz Fixed Frequency Operation
– Power Save Mode at Light Load Current
– Output Voltage Accuracy in PWM Mode ±2.0%
– 100% Duty Cycle for Lowest Dropout
– Typical 15-µA Quiescent per Converter
– Passive Discharge to Ground When Disabled
• LDOs (LDO1, 2)
– Two Adjustable LDOs
– LDO2 Can Be Configured to Track DCDC3
– Typical 15-µA Quiescent Current
• LOAD SWITCHES (LDO3, 4)
– Two Independent Load Switches That Can Be
Configured as LDOs
• WLED DRIVER
– Internally Generated PWM for Dimming
Control
– 38-V Open LED Protection
– Supports Two Strings of Up To 10 LEDs at
25 mA Each
– Internal Low-Side Current Sinks
• PROTECTION
– Undervoltage Lockout and Battery Fault
Comparator
– Always-On Push-Button Monitor
– Hardware Reset Pin
– Password Protected I²C^® Registers
• INTERFACE
– I²C Interface (Address 0x24)
– Password Protected I²C Registers
2 Applications
• AM335x ARM^® Cortex™-A8 Microprocessors
• Portable Navigation Systems
• Tablet Computing
• 5-V Industrial Equipment
3 Description
The TPS65217 is a single-chip power management
IC specifically designed to support applications in
portable and 5-V non-portable applications. It
provides a linear battery charger for single-cell Li-ion
and Li-Polymer batteries, dual-input power path, three
step-down converters, four LDOs, and a high-
efficiency boost converter to power two strings of up
to 10 LEDs each. The system can be supplied by any
combination of USB port, 5-V AC adaptor, or Li-Ion
battery. The device is characterized across a -40°C to
+105°C temperature range which makes it suitable
for industrial applications. Three high-efficiency 2.25-
MHz step-down converters can providing the core
voltage, memory, and I/O voltage for a system.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65217A
TPS65217B
TPS65217C
VQFN (48)
6.00 mm x 6.00 mm
TPS65217D
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
from USB connector
from USB connector
to system host / uC
from system
4.7m
AC
USB
4.7m
MUX_OUT
100n _{MUX_IN}
INT_LDO
100n
BYPASS
10m
MUX
BIAS
from system host / uC
PWR_EN
from system host / uC
Momentatary Push Button
PB_IN
nRESET
Always -on
supply
100k
Always -on
supply
100k
DIGITAL
from system host / uC
from system host / uC
SYS
Up to 2x 10 LEDs
VIO
SCL
VIO
SDA
L4
FB_WLED
4.7m
ISINK1
ISINK2
ISET1
ISET2
I2C
WLED
Driver
Q1
Q1
VBAT
VSYS
VICHARGE
Lin Charger &
Power Path
Q2
VTS
MGMT
TEMP SENSE
DCDC1
DCDC2
SYS
to system
to system
4.7m
VINDO
VLDO1
2.2m
VLDO2
2.2m
LDO1
LDO2
DCDC3
LOAD SW1/
LDO3
LOAD SW2 /
LDO4
SYS
22m
BAT
Single cell
Li+ Battery
BAT_SENSE
10m
TS
NTC
to system load
VIO
PGOOD
LDO_PGOOD
nWAKEUP
100k VIO (always on)
nINT
100k VIO (always on)
4.7m
VIN_DCDC1
I/O Voltage
to system host / uC
to system host / uC
to system host / uC
to system host / uC
SYS
L1
VDCDC1
4.7m
VIN_DCDC2
to system
10m
SYS
L2
VDCDC2
4.7m
VIN_DCDC3
to system
10m
SYS
L3
VDCDC3
to system
10m
LS1_IN
LS1_OUT
LS2_IN
LS2_OUT
from 1.8V-5.8V supply
to system load
10m
from 1.8V-5.8V supply
to system load
10m
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.