描述：TPS92511DDAR
TPS92511DDAR是一款易于使用的 65V 恒流降壓轉換器，用于驅動單個 LED 串，電流高達 0.5A，效率高達 95%。由于集成了 N-MOSFET、沒有外部電流檢測電阻、沒有外部補償和正確的端子分配，因此基本操作只需要 5 個外部組件，單層 PCB 布局是可行的。一個高值外部電阻器對 LED 電流進行編程，從而可以實現對 LED 電流的微調。另一個高值外部電阻器可設置 50kHz 至 500kHz 的恒定開關頻率。由于恒定的開關頻率，EMI 設計變得更加容易。 TPS92511 提供 4.5V 至 65V 的寬輸入電壓范圍。通過添加簡單的外部電路，該器件可以處理具有更高輸入電壓的應用。TPS92511DDAR采用專有控制方案來調節 LED 電流，無需直接檢測 LED 電流。它采用帶有低側 N 溝道功率 MOSFET 的浮動降壓拓撲，無需自舉電容器。對于多通道系統，浮動降壓拓撲連同專有控制方案允許 LED 串的共陽極連接，而無需外部電流感應網絡。這顯著減少了布線數量以及總體制造成本。
TPS92511DDAR具有非常快的 PWM 調光響應時間。例如，如果開關頻率為 500 kHz，最小 DIM 脈沖寬度為 6μs，調光頻率為 150Hz，則可以實現超過 1000:1 的對比度。
TPS92511DDAR采用功率增強型 SOIC-8 裸露散熱焊盤封裝。
特征：TPS92511DDAR
寬輸入電壓范圍：4.5V 至 65V
不需要外部電流檢測電阻器
無需外部環路補償
易于使用，至少需要 5 個組件
1000:1 對比度可行
單層 PCB 可行
可用作高壓降壓穩壓器
可用作線性分流穩壓器
集成低側 N 溝道 MOSFET
LED 電流可編程高達 0.5 A
通常為 ±3.6% LED 電流精度
開關頻率可編程，范圍為 50 kHz 至 500 kHz
限流保護
VCC 欠壓鎖定
熱關斷保護
支持模擬調光和熱折返
功率增強型 SOIC-8 外露散熱焊盤封裝 (HSOP-8)
大功率 LED 驅動器
建筑照明
辦公室藏品
汽車照明
MR-16 LED 燈
制造商: Texas Instruments
產品種類: LED照明驅動器
RoHS: 詳細信息
最小工作溫度: - 40 C
最大工作溫度: + 125 C
安裝風格: SMD/SMT
封裝 / 箱體: SO-PowerPad-8
系列:TPS92511DDAR
封裝: Reel
封裝: Cut Tape
封裝: MouseReel
特點: Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal Shutdown
商標: Texas Instruments
調光: Analog, PWM
濕度敏感性: Yes
工作溫度范圍: - 40 C to + 125 C
產品類型: LED Lighting Drivers
工廠包裝數量: 2500
子類別: Driver ICs
單位重量: 80 mg
以下物料均有現貨庫存：TPS92511DDAR
STM32F101RBT6
STM32F103CBT6
STM32F103C8T6
STM32F103R8T6
STM32F103VBT6
STM32F103RBT6
STM32F103VCT6
STM32F103ZET6
STM32F103VET6
STM32F103RET6
STM32F103RCT6
STM32F103RGT6
STM32F103RCY6TR
STM32F103T8U6
STM32F103VGT6
STM32F103ZGT6
STM32F105RBT6
STM32F105RCT6
STM32F105R8T6
STM32F105VCT6
STM32F107VCT6
STM32F107RCT6
STM32F100R8T6B
STM32F100C6T6B
STM32F100VCT6B
STM32F100RBT6B
STM32F100C8T6B
STM32F100C4T6B
STM32F215RGT6
STM32F205RGT6
TPS92511DDAR
STM32F205RET6
STM32F205RCT6
STM32F205VGT6
STM32F205VET6
STM32F205VCT6
STM32F205ZET6
STM32F205ZGT6
STM32F207VCT6
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STM32F207ZGT6
STM32F373CCT6
STM32F301K8T6
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STM32F302CBT6
STM32F302RCT6
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STM32F302K8U6
STM32F302VET6
STM32F302VDT6
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STM32F303CBT6
STM32F303CCT6
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STM32F303RET6
STM32F303VCT6
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STM32F303ZET6
STM32F411CEU6
STM32F411CCU6TR
STM32F411RCT6
STM32F411RET6
STM32F411VET6
STM32F412RET6
STM32F413VGT6
STM32F415RGT6
STM32F415VGT6
STM32F410CBU6
STM32F410RBT6
STM32F427IGT6
STM32F427VIT6
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STM32F427ZGT6
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STM32F429BIT6
STM32F429IIT6
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STM32F429VGT6
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STM32F429ZGT6
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STM32F446RET6
STM32F446RCT6
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STM32F446ZET6
STM32F446ZEJ6
STM32F469NIH6
STM32F401CEU6
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STM32F401RET6
STM32F405RGT6
STM32F405VGT6
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STM32F407IGT6
STM32F407IGH6
STM32F407IET6
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STM32F407VET6
STM32F407ZET6
STM32F407ZGT6
STM32F407ZGT7
STM32F400CBT6
STM32F722RET6
STM32F730R8T6
STM32F730V8T6
STM32F746VGT6
STM32F756VGT6
STM32F765VIT6
STM32F767ZGT6
STM32F767IGT6
STM32F767NIH6
STM32F767BIT6
STM32F767VIT6
STM32F031K6U6
STM32F031F6P6
STM32F031C6T6TR
STM32F030K6T6
STM32F030F4P6
STM32F030C8T6
STM32F030CCT6
STM32F030C6T6
STM32F030RCT6
STM32F030R8T6
STM32F042K6T6
STM32F042F6P6
STM32F042C6T6
STM32F051K8U6
STM32F051K6U6
STM32F051C8T6
STM32F051C8T7TR
STM32F051R8T6
STM32F051R8T7
STM32F071VBT6
STM32F071CBT6
STM32F071CBU6
STM32F071RBT6
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STM32F072CBU6TR
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STM32G474VET6
STM32G431CBT6
STM32G071CBT6
STM32G071GBU6
STM32G071RBT6
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STM32G070CBT6
STM32G070RBT6
STM32G031F8P6
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STM32G030K6T6
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STM32G030F6P6TR
STM32H743BIT6
STM32H743IIT6
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STM32H743XIH6
STM32H750IBK6
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STM32H750XBH6
STM32L151C8T6A
STM32L151CBT6A
STM32L151CBU6
STM32L151CCU6
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STM32L151RET6
STM32L151RDT6
STM32L151VDT6
STM32L431CCT6
STM32L431CBT6
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STM32L431RCT6
STM32L431VCT6
STM32L433VCT6
STM32L433RCT3
STM32L433RCT6
STM32L452REY6TR
STM32L471RGT6
STM32L471RET6
STM32L475VET6
STM32L476RGT6
STM32L476VET6
STM32L476RCT6
STM32L476VGT6
STM32L496RGT6
STM32L011D4P6
STM32L010C6T6
STM32L011F4U6TR
STM32L011G4U6
STM32L031F6P6
STM32L031K6T6
STM32L031G6U6
STM32L051K8U6
STM32L051C8T6
STM32L051R8T6
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STM32L071RBT6
STM32L071CBT6
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STM32L073RZT6
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STM8L151C6T6
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STM8L151G6U6
STM8L151G4U6
STM8L152C6T6
STM8L152R8T6
STM8L152M8T6
STM8L101F3P6TR
STM8L101K3T6
STM8L101F3U6TR
STM8L001J3M3TR
STM8L051F3P6
STM8L052C6T6
STM8L052R8T6
STM8L050J3M3TR
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