TPS65014_15 Datasheet, PDF (1/69 Pages) Texas Instruments – Power- and Battery-Management IC

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TPS65014
SLVS551A – DECEMBER 2004 – REVISED SEPTEMBER 2015
TPS65014 Power- and Battery-Management IC for Li-Ion Powered Systems
1 Features
•1 Linear Charger Management for Single Li-Ion or
Li-Polymer Cells
• Dual Input Ports for Charging From USB or From
Wall Plug, Handles 100-mA and 500-mA USB
Requirements
• Charge Current Programmable Through External
Resistor
• 1-A, 95% Efficient Step-Down Converter for I/O
and Peripheral Components (VMAIN)
• 400-mA, 90% Efficient Step-Down Converter for
Processor Core (VCORE)
• 2× 200-mA LDOs for I/O and Peripheral
Components, LDO Enable Through Bus
• Serial Interface Compatible With I²C, Supports
100-kHz, 400-kHz Operation
• LOW_PWR Pin to Lower or Disable Processor
Core Supply Voltage in Deep-Sleep Mode
• 70-µA Quiescent Current
• 1% Reference Voltage
• Thermal-Shutdown Protection
2 Applications
• All Single Li-Ion Cell-Operated Products Requiring
Multiple Supplies Including:
– PDAs
– Cellular and Smart Phones
– Internet Audio Players
– Digital Still Cameras
• Digital Radio Players
• Split-Supply DSP and µP Solutions
3 Description
The TPS65014 device is an integrated power- and
battery-management IC for applications powered by
one Li-ion or Li-polymer cell and which require
multiple power rails. The TPS65014 provides two
highly efficient, step-down converters targeted at
providing the core voltage and peripheral I/O rails in a
processor-based system. Both step-down converters
enter a low-power mode at light load for maximum
efficiency across the widest possible range of load
currents. The LOW_PWR pin allows the core
converter to lower its output voltage when the
application processor goes into deep sleep. The
TPS65014 also integrates two 200-mA LDO voltage
regulators, which are enabled through the serial
interface. Each LDO operates with an input voltage
range of 1.8 V to 6.5 V, thus allowing them to be
supplied from one of the step-down converters or
directly from the battery.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65014
VQFN (48)
7.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Block Diagram
AC
USB
ISET
TS
MAX(AC,USB,VBAT)
Linear Charge Controller
VBAT
PG
AGND2
SCLK
SDAT
IFLSB
PS_SEQ
LOW_PWR
PB_ONOFF
BATT_COVER
HOT_RESET
TPOR
RESPWRON
MPU_RESET
INT
PWRFAIL
GPIO1
GPIO2
GPIO3
GPIO4
VIB
LED2
Serial
Interface
Control
UVLO
VREF
OSC
GPIOs
Thermal
Shutdown
VMAIN
Step-Down
Converter
VCORE
Step-Down
Converter
VLDO1
200-mA LDO
VLDO2
200-mA LDO
VINMAIN
L1
VMAIN
DEFMAIN
PGND1
VCC
AGND3
VINCORE
L2
VCORE
DEFCORE
PGND2
VINLDO1
VLDO1
VFB_LDO1
AGND1
VINLDO2
VLDO2
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.