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AC/DC 和 DC/DC 控制器 (外部 FET)

UC3526A

現行

0C 至 70C 的 35V、雙路 0.2A 600KHz PWM 控制器

立即訂購
產品規格表

UC3526A

現行
產品規格表 立即訂購

產品詳細資料

Vin (max) (V) 35 Operating temperature range (°C) 0 to 70 Control mode Voltage Topology Boost, Buck, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Catalog Features Adjustable switching frequency, Dead time control, Error amplifier, Multi-topology, Soft start, Synchronization pin Duty cycle (max) (%) 50
Vin (max) (V) 35 Operating temperature range (°C) 0 to 70 Control mode Voltage Topology Boost, Buck, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Catalog Features Adjustable switching frequency, Dead time control, Error amplifier, Multi-topology, Soft start, Synchronization pin Duty cycle (max) (%) 50
PDIP (N) 18 211.312 mm² 22.48 x 9.4 SOIC (DW) 18 118.965 mm² 11.55 x 10.3
  • Reduced Supply Current
  • Oscillator Frequency to 600kHz
  • Precision Band-Gap Reference
  • 7 to 35V Operation
  • Dual 200mA Source/Sink Outputs
  • Minimum Output Cross-Conduction
  • Double-Pulse Suppression Logic
  • Under-Voltage Lockout
  • Programmable Soft-Start
  • Thermal Shutdown
  • TTL/CMOS Compatible Logic Ports
  • 5 Volt Operation (VIN = VC = VREF = 5.0V)
  • Reduced Supply Current
  • Oscillator Frequency to 600kHz
  • Precision Band-Gap Reference
  • 7 to 35V Operation
  • Dual 200mA Source/Sink Outputs
  • Minimum Output Cross-Conduction
  • Double-Pulse Suppression Logic
  • Under-Voltage Lockout
  • Programmable Soft-Start
  • Thermal Shutdown
  • TTL/CMOS Compatible Logic Ports
  • 5 Volt Operation (VIN = VC = VREF = 5.0V)

The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- \x93A\x94 versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection.

Along with these improvements, the UC1526A Series retains the protective features of under-voltage lockout, soft-start, digital current limiting, double pulse suppression logic, and adjustable deadtime. For ease of interfacing, all digital control ports are TTL compatible with active low logic.

Five volt (5V) operation is possible for \x93logic level\x94 applications by connecting VIN, VC and VREF to a precision 5V input supply. Consult factory for additional information.

The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- \x93A\x94 versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection.

Along with these improvements, the UC1526A Series retains the protective features of under-voltage lockout, soft-start, digital current limiting, double pulse suppression logic, and adjustable deadtime. For ease of interfacing, all digital control ports are TTL compatible with active low logic.

Five volt (5V) operation is possible for \x93logic level\x94 applications by connecting VIN, VC and VREF to a precision 5V input supply. Consult factory for additional information.
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類型 標題 日期
* Data sheet Regulating Pulse Width Modulator datasheet 1999年 9月 5日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode 1999年 9月 5日
Application note Understanding Boost Power Stages In Switchmode Power Supplies 1999年 3月 4日

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PDIP (N) 18 Ultra Librarian
SOIC (DW) 18 Ultra Librarian
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  • 認證摘要
  • 進行中持續性的可靠性監測
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