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TL1451

正在供貨

雙脈寬調(diào)制控制電路

可提供此產(chǎn)品的更新版本

功能與比較器件相同，但引腳排列有所不同
LM5156 正在供貨 采用雙隨機(jī)展頻技術(shù)的 2.2MHz 寬輸入電壓非同步升壓、反激式和 SEPIC 控制器 Lower quiescent current, wider voltage range

產(chǎn)品詳情

Rating Catalog Topology Boost, Buck, Flyback, Forward, SEPIC Vin (max) (V) 50 Vin (min) (V) 3.6 Vout (min) (V) 1 Control mode Voltage mode Features Nonsynchronous rectification Operating temperature range (°C) -20 to 85
Rating Catalog Topology Boost, Buck, Flyback, Forward, SEPIC Vin (max) (V) 50 Vin (min) (V) 3.6 Vout (min) (V) 1 Control mode Voltage mode Features Nonsynchronous rectification Operating temperature range (°C) -20 to 85
PDIP (N) 16 181.42 mm2 19.3 x 9.4 SOP (NS) 16 79.56 mm2 10.2 x 7.8
  • Complete PWM Power Control Circuitry
  • Completely Synchronized Operation
  • Internal Undervoltage Lockout Protection
  • Wide Supply Voltage Range
  • Internal Short-Circuit Protection
  • Oscillator Frequency...500 kHz Max
  • Variable Dead Time Provides Control Over Total Range
  • Internal Regulator Provides a Stable 2.5-V Reference Supply
  • Available in Q-Temp Automotive
    HighRel Automotive Applications
    Configuration Control / Print Support
    Qualification to Automotive Standards
  • Complete PWM Power Control Circuitry
  • Completely Synchronized Operation
  • Internal Undervoltage Lockout Protection
  • Wide Supply Voltage Range
  • Internal Short-Circuit Protection
  • Oscillator Frequency...500 kHz Max
  • Variable Dead Time Provides Control Over Total Range
  • Internal Regulator Provides a Stable 2.5-V Reference Supply
  • Available in Q-Temp Automotive
    HighRel Automotive Applications
    Configuration Control / Print Support
    Qualification to Automotive Standards

The TL1451A incorporates on a single monolithic chip all the functions required in the construction of two pulse-width-modulation (PWM) control circuits. Designed primarily for power-supply control, the TL1451A contains an on-chip 2.5-V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry, and dual common-emitter output transistor circuits.

The uncommitted output transistors provide common-emitter output capability for each controller. The internal amplifiers exhibit a common-mode voltage range from 1.04 V to 1.45 V. The dead-time control (DTC) comparator has no offset unless externally altered and can provide 0% to 100% dead time. The on-chip oscillator can be operated by terminating RT and CT. During low VCC conditions, the undervoltage lockout control circuit feature locks the outputs off until the internal circuitry is operational.

The TL1451AC is characterized for operation from -20°C to 85°C. The TL1451AQ is characterized for operation from -40°C to 125°C. The TL1451AM is characterized for operation from -55°C to 125°C.

The TL1451A incorporates on a single monolithic chip all the functions required in the construction of two pulse-width-modulation (PWM) control circuits. Designed primarily for power-supply control, the TL1451A contains an on-chip 2.5-V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry, and dual common-emitter output transistor circuits.

The uncommitted output transistors provide common-emitter output capability for each controller. The internal amplifiers exhibit a common-mode voltage range from 1.04 V to 1.45 V. The dead-time control (DTC) comparator has no offset unless externally altered and can provide 0% to 100% dead time. The on-chip oscillator can be operated by terminating RT and CT. During low VCC conditions, the undervoltage lockout control circuit feature locks the outputs off until the internal circuitry is operational.

The TL1451AC is characterized for operation from -20°C to 85°C. The TL1451AQ is characterized for operation from -40°C to 125°C. The TL1451AM is characterized for operation from -55°C to 125°C.
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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 Dual Pulse-Width-Modulation Control Circuits 數(shù)據(jù)表 (Rev. E) 2002年 3月 13日

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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