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TL3844的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:交流/直流和隔离式直流/直流开关稳压器 - PWM 控制器
  • 功能描述:具有 16V/10V UVLO 和 50% 占空比、温度范围为 0°C 至 70°C 的经济型单端 500KHz 电流模式 PWM 控制器
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TL3844的产品详情:

The TL284x and TL384x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.

TL3844的优势和特性:
  • Optimized for Off-Line and DC-to-DC Converters
  • Low Start-Up Current (< 1 mA)
  • Automatic Feed-forward compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load-Response Characteristics
  • Undervoltage Lockout With Hysteresis
  • Double-Pulse Suppression
  • High-Current Totem-Pole Output
  • Internally Trimmed Bandgap Reference
  • 500-kHz Operation
  • Error Amplifier With Low Output Resistance
  • Designed to be Interchangeable with UC2842 and UC3842 Series
TL3844的参数(英文):
  • Topology
  • Flyback, Boost,
  • Duty cycle (Max) (%)
  • 50
  • Supply voltage (Max) (V)
  • 30
  • UVLO thresholds on/off (V)
  • 16/10
  • Features
  • Adjustable Switching Frequency, Current Limiting, Error Amplifier, Multi-topology
  • Operating temperature range (C)
  • 0 to 70
  • Rating
  • Catalog
  • Frequency (Max) (kHz)
  • 500
  • Gate drive (Typ) (A)
  • 1
TL3844具体的完整产品型号参数及价格(美元):

TL3844的完整型号有:TL3844D、TL3844D-8、TL3844DR、TL3844DR-8、TL3844P,以下是这些产品的关键参数及官网采购报价:

TL3844D,工作温度:0 to 70,封装:SOIC (D)-14,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844D的批量USD价格:0.336(1000+)

TL3844D-8,工作温度:0 to 70,封装:SOIC (D)-8,包装数量MPQ:75个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844D-8的批量USD价格:0.336(1000+)

TL3844DR,工作温度:0 to 70,封装:SOIC (D)-14,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844DR的批量USD价格:0.246(1000+)

TL3844DR-8,工作温度:0 to 70,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844DR-8的批量USD价格:0.189(1000+)

TL3844P,工作温度:0 to 70,封装:PDIP (P)-8,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:NIPDAU,TI官网TL3844P的批量USD价格:0.336(1000+)

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TL3844的评估套件:

TL3844D,工作温度:0 to 70,封装:SOIC (D)-14,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844D的批量USD价格:0.336(1000+)

TL3844D-8,工作温度:0 to 70,封装:SOIC (D)-8,包装数量MPQ:75个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844D-8的批量USD价格:0.336(1000+)

TL3844DR,工作温度:0 to 70,封装:SOIC (D)-14,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844DR的批量USD价格:0.246(1000+)

TL3844DR-8,工作温度:0 to 70,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网TL3844DR-8的批量USD价格:0.189(1000+)

TL3844P,工作温度:0 to 70,封装:PDIP (P)-8,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:NIPDAU,TI官网TL3844P的批量USD价格:0.336(1000+)

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