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TPS65090ARVNR Datasheet(PDF) 2 Page - Texas Instruments

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Part # TPS65090ARVNR
Description  Frontend PMU With Switchmode Charger for 2-3 Cells In
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65090ARVNR Datasheet(HTML) 2 Page - Texas Instruments

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TPS65090A
www.ti.com
SLVSBO6A – JANUARY 2013 – REVISED JULY 2013
Frontend PMU With Switchmode Charger for 2-3 Cells In Series
1
INTRODUCTION
1.1
FEATURES
1
• Wide Input Voltage Charger/Power Path
• 7 Current Limited Load Switches:
Management:
– One System Voltage Switch with 1 A Current
– VIN Range From 6 V to 17 V
Limit
– Up to 4 A Output Current on the Power Path
– One 5 V Switch with 200 mA Current Limit,
reverse voltage protected
– Switchmode Charger; up to 4 A Maximum
Charge Current
– One 3.3 V Switch with 3 A Current Limit
– JEITA Compliant Charging Control
– Four 3.3 V Switches with 1 A Current Limit
– Thermal Regulation, Safety Timers
– All Switches Controlled by I2C Interface
– 2 Temperature Sense Inputs
• I2C Interface
• 3 Step-Down Converters:
– Standard-mode (100 kHz) supported
– High Efficiency over a wide Output Current
– Fast-mode (400 kHz) supported
Range
– Fast-mode Plus (1000 kHz) supported
– VIN Range From 6 V to 17 V
– High speed (3.4 MHz) supported
– 2 Fixed Output Voltages ( 5 V and 3.3 V)
• 16 Channel 10 Bit A/D Converter
Up to 5 A of Continuous Output Current
• Available in a 9 x 9-mm, VQFN-100 Package
– 1 Adjustable Output Voltage (between 1.0V
and 5.0V)
1.2
APPLICATIONS
Up to 4 A of Continuous Output Current
Battery Powered Products using 2 to 3 Li-Cells
– Output Voltage Accuracy ±1%
in Series
– Typical 30
μA Quiescent Current per
Notebook Computer
Converter
Mobile PC's and Mobile Internet Devices
• 2 Always On LDO's:
Industrial Metering Equipment
– 2 Fixed Output Voltages ( 5 V and 3.3 V)
– Output Voltage Accuracy ±1%
Personal Medical Products
– Typical 10
μA Quiescent Current per LDO
1.3
DESCRIPTION
The TPS65090A is a single chip Power Management ICs for portable applications consisting of a battery
charger with power path management for a dual or triple Li-Ion or Li-Polymer cell battery pack. The
charger can be directly connected to an external wall adapter. Three highly efficient step-down converters
are targeted for providing a fixed 5 V system voltage, a fixed 3.3 V system voltage and an adjustable
voltage rail. The step-down converters enter a low power mode at light load for maximum efficiency across
the widest possible range of load currents. The step-down converters allow the use of small inductors and
capacitors to achieve a small solution size. The TPS65090A also integrates two general purpose always
on LDOs for powering circuit blocks which control the system while shut down. Each LDO operates with
an input voltage range between 6 V and 17 V allowing them to be supplied from the wall adapter or
directly from the main battery pack.
The device also has 7 load switches built-in. They can be used to control the power supply individually for
certain circuit blocks in the application circuit. The current flowing through the load switches, as well as the
output current of the step-down converters, the input current from the AC adaptor and the charge current
is monitored and can be read out using the digital interface.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to
Copyright © 2013, Texas Instruments Incorporated
specifications per the terms of the Texas Instruments standard warranty. Production
processing does not necessarily include testing of all parameters.


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