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TPS65131-Q1

現行

具雙路、正和負輸出的車用分裂軌轉換器 (750mA typ)

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產品規格表

TPS65131-Q1

現行
產品規格表 立即訂購

產品詳細資料

Display type LCD bipolar IC integration LCD bias Vin (min) (V) 2.7 Vin (max) (V) 5.5 Applications 7 inches or less, 7 to 13 inches 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 Features Adjustable sequencing Topology Split-Rail Rating Automotive Operating temperature range (°C) -40 to 105
Display type LCD bipolar IC integration LCD bias Vin (min) (V) 2.7 Vin (max) (V) 5.5 Applications 7 inches or less, 7 to 13 inches 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 Features Adjustable sequencing Topology Split-Rail Rating Automotive Operating temperature range (°C) -40 to 105
VQFN (RGE) 24 16 mm² 4 x 4
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range
    • Electrical Characteristics Tested Over –40°C to 125°C Junction Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C4B
  • Dual Adjustable Output Voltages up to 15 V and down to –15 V
  • 2–A Typical Switch-Current Limit for Boost and Inverter Main Switches
  • High Conversion Efficiency
    • Up to 91% at Positive Output Rail
    • Up to 85% at Negative Output Rail
    • Power-Save Mode at Low Load
  • Independent Enable Inputs for Power-Up and Power-Down Sequencing
  • Control Output for External PFET to Support Complete Supply Disconnect When Shut Down
  • 2.7-V to 5.5-V Input-Voltage Range
  • Minimum 1.25-MHz Fixed-Frequency PWM Operation
  • Thermal Shutdown
  • Overvoltage Protection on Both Outputs
  • 0.2-µA Typical Shutdown Current
  • Small 4-mm × 4-mm QFN-24 Package (RGE)
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range
    • Electrical Characteristics Tested Over –40°C to 125°C Junction Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C4B
  • Dual Adjustable Output Voltages up to 15 V and down to –15 V
  • 2–A Typical Switch-Current Limit for Boost and Inverter Main Switches
  • High Conversion Efficiency
    • Up to 91% at Positive Output Rail
    • Up to 85% at Negative Output Rail
    • Power-Save Mode at Low Load
  • Independent Enable Inputs for Power-Up and Power-Down Sequencing
  • Control Output for External PFET to Support Complete Supply Disconnect When Shut Down
  • 2.7-V to 5.5-V Input-Voltage Range
  • Minimum 1.25-MHz Fixed-Frequency PWM Operation
  • Thermal Shutdown
  • Overvoltage Protection on Both Outputs
  • 0.2-µA Typical Shutdown Current
  • Small 4-mm × 4-mm QFN-24 Package (RGE)

The TPS65131-Q1 device 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 of typically 200 mA, 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, for example, 3.3-V and 5-V rails to power the TPS65131-Q1 device. The TPS65131-Q1 device comes in a QFN-24 package with thermal pad. Requiring few and small external components, the overall solution size can be small.

The converter operates with a fixed-frequency PWM control topology and, with power-save mode enabled, uses a pulse-skipping mode at light load currents. In operation, the typical overall device quiescent current is only 500 µA. In shutdown, the device draws typically 0.2 µA. Independent enable pins allow power-up and power-down sequencing for both outputs. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions.

The TPS65131-Q1 device is qualified for automotive applications, according to AEC-Q100 temperature grade 2. The electrical characteristics are tested over –40°C to 125°C device junction temperature. This, combined with lowest shutdown currents, small solution size, package with thermal pad, plus good efficiency and protection features, targets automotive and industrial applications.

The TPS65131-Q1 device 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 of typically 200 mA, 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, for example, 3.3-V and 5-V rails to power the TPS65131-Q1 device. The TPS65131-Q1 device comes in a QFN-24 package with thermal pad. Requiring few and small external components, the overall solution size can be small.

The converter operates with a fixed-frequency PWM control topology and, with power-save mode enabled, uses a pulse-skipping mode at light load currents. In operation, the typical overall device quiescent current is only 500 µA. In shutdown, the device draws typically 0.2 µA. Independent enable pins allow power-up and power-down sequencing for both outputs. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions.

The TPS65131-Q1 device is qualified for automotive applications, according to AEC-Q100 temperature grade 2. The electrical characteristics are tested over –40°C to 125°C device junction temperature. This, combined with lowest shutdown currents, small solution size, package with thermal pad, plus good efficiency and protection features, targets automotive and industrial applications.
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類型 標題 日期
* Data sheet TPS65131-Q1 Positive- and Negative-Output DC-DC Converter datasheet (Rev. E) PDF | HTML 2017年 2月 8日
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 2022年 10月 28日
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018年 9月 19日
White paper Powering automotive displays to create interactive driving experiences 2017年 12月 21日
Application note Basic calculation of an inverting buck-boost power stage (Rev. A) 2017年 8月 28日
Technical article Split-rail converters reduce BOM size and cost in new automotive displays PDF | HTML 2015年 7月 1日
EVM User's guide TPS65131EVM User's Guide (Rev. C) 2010年 11月 23日
Application note Minimizing Ringing at the Switch Node of a Boost Converter 2006年 9月 15日

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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
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參考設計

PMP9780 — 參考設計：使用 TPS65131-Q1 和電荷泵的雙極 TFT LCD 電源

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 (...)
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