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UC2842L

現行

具有 16V 和 10V UVLO 100% 占空比的 36V、1A、500KHz 電流模式 PWM 控制器

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UC2842L

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Boost, Buck, Buck boost, Flyback, Forward Vin (max) (V) 36 Control mode Peak current mode Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology Operating temperature range (°C) -40 to 125 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
Rating Catalog Topology Boost, Buck, Buck boost, Flyback, Forward Vin (max) (V) 36 Control mode Peak current mode Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology Operating temperature range (°C) -40 to 125 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
SOIC (D) 8 29.4 mm² 4.9 x 6

  • Improved output driver and lower operating/startup current from UCx84x/UCx84xA/UCx84xAQ/TLx84x/TLx84xB families

  • Optimized for off-line and DC-DC converters
  • Low start-up current (< 0.5mA)
  • Trimmed oscillator discharge current
  • Automatic feedforward 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
  • Up to 500kHz operation

  • Improved output driver and lower operating/startup current from UCx84x/UCx84xA/UCx84xAQ/TLx84x/TLx84xB families

  • Optimized for off-line and DC-DC converters
  • Low start-up current (< 0.5mA)
  • Trimmed oscillator discharge current
  • Automatic feedforward 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
  • Up to 500kHz operation

The UC284xL control device is a pin-for-pin compatible improved version of the UC284x family. Providing the necessary features to control current-mode or switched-mode power supplies, this device provides improved features: higher VCC range at 36V, lower start-up current at 0.25mA, tighter operating current tolerance at 15mA max, and faster response on cycle-by-cycle current protection at 100ns. Output driver of UC284xL is improved with shorter rise and fall time at 75ns max to reduce switching loss, and stronger driver capabilities with lower output low level farther from the FETs threshold voltage.

The UC284xL control device is a pin-for-pin compatible improved version of the UC284x family. Providing the necessary features to control current-mode or switched-mode power supplies, this device provides improved features: higher VCC range at 36V, lower start-up current at 0.25mA, tighter operating current tolerance at 15mA max, and faster response on cycle-by-cycle current protection at 100ns. Output driver of UC284xL is improved with shorter rise and fall time at 75ns max to reduce switching loss, and stronger driver capabilities with lower output low level farther from the FETs threshold voltage.
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* Data sheet UC284xL High-Performance Economy Current-Mode PWM Controller datasheet PDF | HTML 2025年 3月 21日

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