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TPS92690

現行

適用可調光 LED 驅動器且具低側電流感測的 N 通道控制器

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TPS92692 現行 具有展頻頻率調變和內部 PWM 產生器的高準確度 LED 控制器 Includes spread spectrum frequency modulation for improved EMI performance.

TPS92690

現行
產品規格表 立即訂購

產品詳細資料

Input voltage type DC/DC Topology Boost, Boost Controller, Cuk, Flyback, SEPIC Vin (min) (V) 4.5 Vin (max) (V) 75 Vout (max) (V) 72 Vout (min) (V) 3 Iout (max) (A) 5 Iq (typ) (mA) 2 Features Adjustable Switch Frequency, Enable/Shutdown, Soft Start, Synchronization Pin, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Boost, Boost Controller, Cuk, Flyback, SEPIC Vin (min) (V) 4.5 Vin (max) (V) 75 Vout (max) (V) 72 Vout (min) (V) 3 Iout (max) (A) 5 Iq (typ) (mA) 2 Features Adjustable Switch Frequency, Enable/Shutdown, Soft Start, Synchronization Pin, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Input Voltage Range from 4.5 to 75 V
  • Adjustable Current Sense (50 to 500 mV)
  • Low-Side Current Sensing
  • 2-Ω MOSFET Gate Driver
  • Input Undervoltage Protection
  • Output Overvoltage Protection
  • Cycle-by-Cycle Current Limit
  • PWM Dimming Input
  • Programmable Oscillator Frequency
  • External Synchronization Capability
  • Slope Compensation
  • Programmable Soft-Start Function
  • HTSSOP (PWP), 16-Pin, Exposed Pad Package
  • Input Voltage Range from 4.5 to 75 V
  • Adjustable Current Sense (50 to 500 mV)
  • Low-Side Current Sensing
  • 2-Ω MOSFET Gate Driver
  • Input Undervoltage Protection
  • Output Overvoltage Protection
  • Cycle-by-Cycle Current Limit
  • PWM Dimming Input
  • Programmable Oscillator Frequency
  • External Synchronization Capability
  • Slope Compensation
  • Programmable Soft-Start Function
  • HTSSOP (PWP), 16-Pin, Exposed Pad Package

The TPS92690 device is a high-voltage, low-side NFET controller with an adjustable output current sense resistor voltage. Ideal for LED drivers, it contains all of the features needed to implement current regulators based on boost, SEPIC, flyback, and Cuk topologies.

Output current regulation is based on peak current-mode control supervised by a control loop. This methodology eases the design of loop compensation while providing inherent input voltage feed-forward compensation. The TPS92690 device includes a high-voltage start-up regulator that operates over a wide input range between 4.5 and 75 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2 MHz. The TPS92690 device includes an error amplifier, precision reference, cycle-by-cycle current limit, and thermal shutdown.

The TPS92690 device is a high-voltage, low-side NFET controller with an adjustable output current sense resistor voltage. Ideal for LED drivers, it contains all of the features needed to implement current regulators based on boost, SEPIC, flyback, and Cuk topologies.

Output current regulation is based on peak current-mode control supervised by a control loop. This methodology eases the design of loop compensation while providing inherent input voltage feed-forward compensation. The TPS92690 device includes a high-voltage start-up regulator that operates over a wide input range between 4.5 and 75 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2 MHz. The TPS92690 device includes an error amplifier, precision reference, cycle-by-cycle current limit, and thermal shutdown.
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類型 標題 日期
* Data sheet TPS92690 N-Channel Controller for Dimmable LED Drives With Low-Side Current Sense datasheet (Rev. A) PDF | HTML 2014年 11月 12日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
EVM User's guide TPS92690EVM-506 Boost Evaluation Module 2012年 10月 16日

設計與開發

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開發板

TPS92690EVM — 具有低壓側電流感測且適用於可調光 LED 驅動器的 N 通道控制器評估模組基板

The TPS92690EVM evaluation module is a constant current LED driver that can support applications up to 35W (35V at 1A). The LED current is pre-set at 500mA and the output voltage range is 20V to 35V. The input voltage range for this design is 8V to 19V which is typical for automotive applications (...)
使用指南: PDF
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模擬型號

TPS92690 PSpice Transient Model

SLVM814.ZIP (45 KB) - PSpice Model
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模擬型號

TPS92690 TINA-TI Transient Reference Design

SLVMAP7.TSC (132 KB) - TINA-TI Reference Design
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模擬型號

TPS92690 TINA-TI Transient Spice Model

SLVMAP8.ZIP (32 KB) - TINA-TI Spice Model
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計算工具

SLVC467 — TPS92690 Boost Converter Matchad Calculation Tool

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照明 LED 驅動器
TPS92690 — 適用可調光 LED 驅動器且具低側電流感測的 N 通道控制器
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