UCC3807-1

Name: UCC3807-1
Brand: TI
SKU: UCC3807-1
Price: 1.734 USD

現行

具有 7.2V/6.9V UVLO、可編程工作週期 0C 至 70C 的經濟型低功耗 BICMOS 1MHz 電流模式 PWM

立即訂購

產品規格表

document-pdfAcrobat Programmable Maximum Duty Cycle PWM Controller datasheet (Rev. B) (英文)

UCC3807-1

現行

產品規格表

立即訂購

產品詳細資料

Vin (max) (V)

13.5

Operating temperature range (°C)

0 to 70

Control mode

Current

Topology

Boost, Flyback

Rating

Catalog

Features

Error amplifier, Leading edge blanking, Multi-topology, Soft start

Duty cycle (max) (%)

78

Vin (max) (V)

13.5

Operating temperature range (°C)

0 to 70

Control mode

Current

Topology

Boost, Flyback

Rating

Catalog

Features

Error amplifier, Leading edge blanking, Multi-topology, Soft start

Duty cycle (max) (%)

78

SOIC (D)

8

29.4 mm² 4.9 x 6

User Programmable Maximum PWM Duty Cycle
100-A Startup Current
Operation to 1 MHz
Internal Full Cycle Soft Start
Internal Leading Edge Blanking of Current Sense Signal
1-A Totem Pole Output

User Programmable Maximum PWM Duty Cycle
100-A Startup Current
Operation to 1 MHz
Internal Full Cycle Soft Start
Internal Leading Edge Blanking of Current Sense Signal
1-A Totem Pole Output

The UCC3807 family of high speed, low power integrated circuits contains all of the control and drive circuitry required for off-line and dc-to-dc fixed frequency current mode switching power supplies with minimal external parts count.

These devices are similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3807 family also features internal full cycle soft start and internal leading edge blanking of the current sense input.

The UCC3807 family offers a variety of package options, temperature range options, and choice of critical voltage levels. The family has UVLO thresholds and hysteresis levels for off-line and battery powered systems. Thresholds are shown in the table below.

The UCC3807 family of high speed, low power integrated circuits contains all of the control and drive circuitry required for off-line and dc-to-dc fixed frequency current mode switching power supplies with minimal external parts count.

These devices are similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3807 family also features internal full cycle soft start and internal leading edge blanking of the current sense input.

The UCC3807 family offers a variety of package options, temperature range options, and choice of critical voltage levels. The family has UVLO thresholds and hysteresis levels for off-line and battery powered systems. Thresholds are shown in the table below.

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