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AC/DC 和 DC/DC 控制器 (外部 FET)

UCC2813-3-Q1

現行

具有 4.1V/3.6V UVLO 100% 工作週期的車用經濟型單端 1MHz 電流模式 PWM 控制器

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產品規格表

UCC2813-3-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology Boost, Flyback, Forward Vin (max) (V) 11 Control mode Current Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start Operating temperature range (°C) -40 to 125 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Boost, Flyback, Forward Vin (max) (V) 11 Control mode Current Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start 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 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temp. grade 1: –40°C to 125°C TA
    • Device HBM classification level 2: ±2kV
    • Device CDM classification level C5: >1000V
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 100µA typical starting supply current
  • 500µA typical operating supply current
  • Operation 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 the UCC3802 device, UC3842 device, and UC3842A device families
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temp. grade 1: –40°C to 125°C TA
    • Device HBM classification level 2: ±2kV
    • Device CDM classification level C5: >1000V
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 100µA typical starting supply current
  • 500µA typical operating supply current
  • Operation 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 the UCC3802 device, UC3842 device, and UC3842A device families

The UCC2813-x-Q1 device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC284x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC2813-x-Q1 device family offers a variety of package options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC2813-3-Q1 and UCC2813-5-Q1 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC2813-2-Q1 device and UCC2813-4-Q1 device make these ideal choices for use in off-line power supplies.

The UCC2813-x-Q1 device series is specified for operation from –40°C to 125°C.

The UCC2813-x-Q1 device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC284x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC2813-x-Q1 device family offers a variety of package options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC2813-3-Q1 and UCC2813-5-Q1 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC2813-2-Q1 device and UCC2813-4-Q1 device make these ideal choices for use in off-line power supplies.

The UCC2813-x-Q1 device series is specified for operation from –40°C to 125°C.
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* Data sheet UCC2813-x-Q1 Automotive Low-Power Economy BiCMOS Current-Mode PWM datasheet (Rev. F) PDF | HTML 2025年 4月 25日

設計與開發

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參考設計

TIDM-AUTO-DC-LED-LIGHTING — 適用於汽車頭燈應用的多通道高密度 LED 控制

This design, featuring the TMS320F2803x Piccolo microcontroller, implements a high efficiency multi-channel DC-DC LED control system for typically automotive lighting systems. The design support up to 6 channels of LED controls each with maximum of 1.2A current driving capabilities. With a  (...)
Design guide: PDF
電路圖: PDF
參考設計

PMP2187 — 適用於醫療組的返馳、線性穩壓器 (10mA 下為 5.75V) 參考設計

此設計提供隔離式 5V (x2)、3.3V、2.5V 和 -5V 輸出。所有輸出皆使用低壓降 (LDO) 線性穩壓器進行雜訊濾波，適用於對雜訊敏感的應用，如醫學影像及資料擷取。
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (D) 8 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian
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