UCC1803

現行

低功耗 BiCMOS 電流模式 PWM

立即訂購

產品規格表

document-pdfAcrobat UCC280x Low-Power BiCMOS Current-Mode PWM Controllers datasheet (Rev. H) (英文) PDF | HTML

UCC1803

現行

產品規格表

立即訂購

產品詳細資料

Rating

Military

Topology

Boost, Flyback, Forward

Control mode

Current

Features

Error amplifier, Fixed frequency, Leading edge blanking, Soft start

Operating temperature range (°C)

-55 to 125

Duty cycle (max) (%)

100

Rating

Military

Topology

Boost, Flyback, Forward

Control mode

Current

Features

Error amplifier, Fixed frequency, Leading edge blanking, Soft start

Operating temperature range (°C)

-55 to 125

Duty cycle (max) (%)

100

CDIP (JG)

8

64.032 mm² 9.6 x 6.67

100µA typical starting supply current
500µA typical operating supply current
Operation up to 1MHz
Internal soft start
Internal fault soft start
Internal leading-edge blanking of the current sense signal
1A totem-pole output
70ns typical response from current-sense to gate drive output
1.5% tolerance voltage reference
Same pinout as UC3842 and UC3842A

100µA typical starting supply current
500µA typical operating supply current
Operation up to 1MHz
Internal soft start
Internal fault soft start
Internal leading-edge blanking of the current sense signal
1A totem-pole output
70ns typical response from current-sense to gate drive output
1.5% tolerance voltage reference
Same pinout as UC3842 and UC3842A

The UCC280x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching mode power supplies with minimal parts count.

These devices have the same pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC280x family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery-operated systems, while the higher reference and higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies.

The UCC280x series is specified for operation from –40°C to 125°C.

The UCC280x family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching mode power supplies with minimal parts count.

These devices have the same pin configuration as the UCx84x family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC280x family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC2803 and UCC2805 fit best into battery-operated systems, while the higher reference and higher UVLO hysteresis of the UCC2802 and UCC2804 make these ideal choices for use in off-line power supplies.

The UCC280x series is specified for operation from –40°C to 125°C.

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