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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

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產品規格表

TPS92692

現行
產品規格表 立即訂購

產品詳細資料

Input voltage type DC/DC Topology Boost, Buck, Buck-Boost, Cuk, Flyback, SEPIC Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 65 Vout (min) (V) 3 Iout (max) (A) 5 Iq (typ) (mA) 1.8 Features Adjustable Switch Frequency, High Output Accuracy, Precision Dimming Control, 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, Buck, Buck-Boost, Cuk, Flyback, SEPIC Vin (min) (V) 4.5 Vin (max) (V) 65 Vout (max) (V) 65 Vout (min) (V) 3 Iout (max) (A) 5 Iq (typ) (mA) 1.8 Features Adjustable Switch Frequency, High Output Accuracy, Precision Dimming Control, 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) 20 41.6 mm² 6.5 x 6.4
  • Wide Input Voltage: 4.5 V to 65 V
  • Better than ± 4% LED Current Accuracy over –40°C to 150°C Junction Temperature Range
  • Spread Spectrum Frequency Modulation for Improved EMI
  • Comprehensive Fault Protection Circuitry with Current Monitor output and Open Drain Fault Flag Indicator
  • Internal Analog Voltage to PWM Duty Cycle Generator for stand-alone Dimming Operation
  • Compatible with Direct PWM Input with over 1000:1 Dimming Range
  • Analog LED Current Adjust Input (IADJ) with over 15:1 Contrast Ratio
  • Integrated P-Channel Driver to enable Series FET Dimming and LED Protection
  • TPS92692-Q1: Automotive Q100 Grade 1 Qualified
  • Wide Input Voltage: 4.5 V to 65 V
  • Better than ± 4% LED Current Accuracy over –40°C to 150°C Junction Temperature Range
  • Spread Spectrum Frequency Modulation for Improved EMI
  • Comprehensive Fault Protection Circuitry with Current Monitor output and Open Drain Fault Flag Indicator
  • Internal Analog Voltage to PWM Duty Cycle Generator for stand-alone Dimming Operation
  • Compatible with Direct PWM Input with over 1000:1 Dimming Range
  • Analog LED Current Adjust Input (IADJ) with over 15:1 Contrast Ratio
  • Integrated P-Channel Driver to enable Series FET Dimming and LED Protection
  • TPS92692-Q1: Automotive Q100 Grade 1 Qualified

The TPS92692 and TPS92692-Q1 are high accuracy peak current mode based controllers designed to support step-up/down LED driver topologies. The device incorporates a rail-to-rail current amplifier to measure LED current and spread spectrum frequency modulation technique for improved EMI performance.

This high performance LED controller can independently modulate LED current using either analog or PWM dimming techniques. Linear analog dimming response with over 15:1 range is obtained by varying the voltage across the high impedance analog adjust (IADJ) input. PWM dimming of LED current is achieved by directly modulating the DIM/PWM input pin with the desired duty cycle or by enabling the internal PWM generator circuit. The PWM generator translates the DC voltage at DIM/PWM pin to corresponding duty cycle by comparing it to the internal triangle wave generator. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.

The TPS92692 and TPS92692-Q1 devices support continuous LED status check through the current monitor (IMON) output. The devices also include an open drain fault indicator output to indicate LED overcurrent, output overvoltage and output undervoltage conditions.

The TPS92692 and TPS92692-Q1 are high accuracy peak current mode based controllers designed to support step-up/down LED driver topologies. The device incorporates a rail-to-rail current amplifier to measure LED current and spread spectrum frequency modulation technique for improved EMI performance.

This high performance LED controller can independently modulate LED current using either analog or PWM dimming techniques. Linear analog dimming response with over 15:1 range is obtained by varying the voltage across the high impedance analog adjust (IADJ) input. PWM dimming of LED current is achieved by directly modulating the DIM/PWM input pin with the desired duty cycle or by enabling the internal PWM generator circuit. The PWM generator translates the DC voltage at DIM/PWM pin to corresponding duty cycle by comparing it to the internal triangle wave generator. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.

The TPS92692 and TPS92692-Q1 devices support continuous LED status check through the current monitor (IMON) output. The devices also include an open drain fault indicator output to indicate LED overcurrent, output overvoltage and output undervoltage conditions.
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* Data sheet TPS92692, TPS92692-Q1 High Accuracy LED Controller With Spread Spectrum Frequency Modulation datasheet PDF | HTML 2017年 3月 8日

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開發板

TPS92692EVM-880 — TPS92692-Q1 升壓和升壓至電池 LED 驅動器評估模組

TPS92692EVM-880 是完全組裝且經過測試的 LED 驅動器，可配置為升壓或升壓至電池拓撲，為單串列串聯 LED 供電。使用低偏移軌對軌電流感測放大器和高壓側電流感測實作，即可實現精確的閉合迴路 LED 電流穩壓。  DC LED 電流設定點可利用高阻抗類比調整 (IADJ) 輸入在 15:1 比率上改變。透過以所需工作週期直接調變 PWM/DIM 輸入接腳，或啟用內部 PWM 產生器電路，即可實現 LED 電流的 PWM 調光。可選的 PDRV 閘極驅動器輸出可用於驅動外部 P 通道系列 MOSFET。

TPS92692 Q1 支援透過電流監視器 (IMON) 輸出進行連續 LED (...)

使用指南: PDF
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模擬型號

TPS92692-Q1 Boost and Buck Boost PSpice Transient Model (Rev. A)

SLVMC05A.ZIP (121 KB) - PSpice Model
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模擬型號

Thermal Foldback TINA-TI Spice Reference Design

SLOM480.ZIP (38 KB) - TINA-TI Reference Design
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計算工具

SLVC686 — TPS92692-Q1 Buck-Boost Design Calculator

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產品
照明 LED 驅動器
  • TPS92692 — 具有展頻頻率調變和內部 PWM 產生器的高準確度 LED 控制器
汽車 LED 驅動器
  • TPS92692-Q1 — 具有展頻頻率調變和內部 PWM 產生器的高準確度 LED 控制器
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SLVC687 — TPS92692-Q1 Boost Design Calculator

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產品
照明 LED 驅動器
  • TPS92692 — 具有展頻頻率調變和內部 PWM 產生器的高準確度 LED 控制器
汽車 LED 驅動器
  • TPS92692-Q1 — 具有展頻頻率調變和內部 PWM 產生器的高準確度 LED 控制器
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