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Product details

Parameters

Display type LCD Bipolar IC integration LCD Bias Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Source driver voltage (Min) (V) -15 Source driver voltage (Max) (V) 15 Level shifter/scan driver (ch) 0 V_POS (Min) (V) 3.2 V_POS (Max) (V) 15 V_NEG (Min) (V) -15 V_NEG (Max) (V) -2 Special function Adjustable Sequencing Topology Split-Rail Rating Catalog open-in-new Find other LCD & OLED display power & drivers

Package | Pins | Size

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Features

  • 2.7-V to 5.5-V Input Voltage Range
  • Dual Adjustable Output Voltages Up to 15 V and
    Down to –15 V
  • 800-mA Typical Switch Current Limit at Boost and
    Inverter Main Switches at TPS65130
  • 2-A Typical Switch Current Limit at Boost and
    Inverter Main Switches at TPS65131
  • Up to 89% Efficiency at Positive Output
    Voltage Rail
  • Up to 81% Efficiency at Negative Output
    Voltage Rail
  • Power-Save Mode for High Efficiency at Low Load
    Currents
  • Independent Enable Inputs for Power-Up and
    Power-Down Sequencing
  • Control Output for External PFET to Support
    Completely Disconnecting the Battery
  • Minimum 1.25-MHz Fixed Frequency PWM
    Operation
  • Thermal Shutdown
  • Overvoltage Protection on Both Outputs
  • 1-µA Shutdown Current
  • Small 4-mm × 4-mm VQFN-24 Package (RGE)
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Description

The TPS6513x is dual-output DC-DC converter generating a positive output voltage up to 15 V and a negative output voltage down to –15 V with output currents in a 200-mA range in typical applications, depending on input voltage to output voltage ratio. With a total efficiency up to 85%, the device is ideal for portable battery-powered equipment. The input voltage range of 2.7 V to 5.5 V allows the devices to be powered from batteries or from fixed 3.3-V or 5-V supplies. The TPS6513x comes in a small 4-mm × 4- mm VQFN-24 package. Together with a minimum switching frequency of 1.25 MHz, the device enables designing small power supply applications because it requires only a few small external components.

The converter operates with a fixed frequency PWM control topology and, if power-save mode is enabled, it uses a pulse-skipping mode at light-load currents. It operates with only 500-µA device quiescent current. Independent enable pins allow power-up and powerdown sequencing for both outputs. The device has an internal current limit overvoltage protection and a thermal shutdown for highest reliability under fault conditions.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 12
Type Title Date
* Datasheet TPS6513x Positive and Negative Output DC-DC Converter datasheet (Rev. D) Jan. 26, 2016
Technical articles Improving sensor DAQ performance using the PRU-ICSS for grid protection and control Oct. 09, 2018
Application notes Understanding Undervoltage Lockout in Power Devices (Rev. A) Sep. 19, 2018
Technical articles Interfacing multiple ADCs to a single processor for grid protection and control Sep. 13, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guides TPS65131EVM-839 User's Guide Dec. 22, 2017
Application notes Basic calculation of an inverting buck-boost power stage (Rev. A) Aug. 28, 2017
Technical articles Making music without touching an instrument Sep. 17, 2015
Application notes Basic Calculation of a Boost Converter's Power Stage (Rev. C) Jan. 08, 2014
Technical articles Everything is bigger in Texas Dec. 16, 2013
User guides TPS65131EVM User's Guide (Rev. C) Nov. 23, 2010
Application notes Minimizing Ringing at the Switch Node of a Boost Converter Sep. 15, 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
The TPS65131EVM-839 is an evaluation tool for the TPS65131 Positive and Negative Output DC-DC Converter for general-purpose split-rail supplies, industrial applications and LCD or OLED displays. The evaluation module can accept input voltages in range of 2.7 V to 5.5 V and delivers by default 8 V (...)
Features
  • 2.7 V to 5.5 V input voltage range
  • Dual adjustable output voltages
  • Independent enable inputs for power-up and power-down sequencing
  • Power-save mode for high efficiency at low load currents

Design tools & simulation

SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-010065 — This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom for (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC
TIDA-01576 — This reference design accurately measures 16-channel AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range. This range covers protection and measurement requirements (including sampling requirements as per IEC 61850-9-2), which simplifies system design and improves (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Accuracy Analog Front End Using 16-Bit SAR ADC with ±10V Measurement Range Reference Design
TIDA-00834 — The TIDA-00834 reference design accurately measures voltage and current inputs using simultaneously sampled, 16-bit, ±10 V, bipolar input SAR ADC critical to identify power systems malfunction and power quality related failures accurately and quickly. This results in reduced power systems (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications
TIDA-010008 — This reference design features multiple approaches for  protecting AC or DC analog input, DC analog output, AC or DC binary input, digital output with a high side or low side driver, LCD bias supply, USB interfaces (power and data) and onboard power supplies with 24, 12 or 5V input used in (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Flexible Interface (PRU-ICSS) Reference Design for Simultaneous, Coherent DAQ Using Multiple ADCs
TIDA-01555 — This reference design showcases an interface implementation for connecting multiple high voltage bipolar input, 8-channel, mux-input SAR ADCs (6) with the Sitara Arm processors for expanding the number of input channels using Programmable Real-time Unit (PRU-ICSS). ADCs are configured for (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Reference Design: Bipolar TFT LCD Supply Using TPS65131-Q1 and Charge Pumps
PMP9780 This reference design details a display power circuit which generates a bipolar voltage rail for source drivers and additional supplies for gate drivers. Charge pumps are used to generate the voltage supply for gate drivers, which makes this design easy to implement. By using only one dc-dc (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Voltage & Current (Power) Measurement AFE for mV Output Sensor Interface to SAR ADC Reference Design
TIDA-00493 The TIDA-00493 TI design is a fixed gain amplifier stage for measuring low amplitude voltage and current inputs accurately over a wide dynamic range using SAR ADC for power measurement applications. Low-amplitude AC voltage from voltage dividers, current transformers or split core current sensors (...)
document-generic Schematic document-generic User guide

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