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AC/DC 和 DC/DC 控制器 (外部 FET)

UCC28C44-Q1

現行

車用 20V、低功耗電流模式 PWM 控制器、14.5V/9V UVLO、50% 工作週期

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UCC28C54-Q1 現行 車用 30-V、低功耗電流模式 PWM 控制器、14.5-V/9-V UVLO、50% 工作週期 Higher supply voltage, lower start-up and operating current, and better efficiency.

UCC28C44-Q1

現行
產品規格表 立即訂購

產品詳細資料

Vin (max) (V) 18 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Automotive Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 50 TI functional safety category Functional Safety-Capable
Vin (max) (V) 18 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Automotive Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 50 TI functional safety category Functional Safety-Capable
SOIC (D) 8 29.4 mm² 4.9 x 6
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: -40⁰C to 125⁰C
    • Device HBM classification level 2: ±2 kV
    • Device CDM classification level C4B: 750 V
  • Functional Safety-Capable
  • Operating frequency: 1 MHz Maximum
  • 50-µA standby current, 100-µA maximum
  • Low operating current of 2.3 mA at 52 kHz
  • Fast 35-ns cycle-by-cycle over-current limiting
  • ±1-A peak output current
  • Rail-to-rail output swings with 25-ns rise and 20-ns fall times
  • ±1% initial trimmed 2.5-V error amplifier reference
  • Trimmed oscillator discharge current
  • New undervoltage lockout versions
  • Create a custom design using the UCC28C4x-Q1 with the WEBENCH Power Designer
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: -40⁰C to 125⁰C
    • Device HBM classification level 2: ±2 kV
    • Device CDM classification level C4B: 750 V
  • Functional Safety-Capable
  • Operating frequency: 1 MHz Maximum
  • 50-µA standby current, 100-µA maximum
  • Low operating current of 2.3 mA at 52 kHz
  • Fast 35-ns cycle-by-cycle over-current limiting
  • ±1-A peak output current
  • Rail-to-rail output swings with 25-ns rise and 20-ns fall times
  • ±1% initial trimmed 2.5-V error amplifier reference
  • Trimmed oscillator discharge current
  • New undervoltage lockout versions
  • Create a custom design using the UCC28C4x-Q1 with the WEBENCH Power Designer

The UCC28C4x-Q1 family devices are high performance current-mode PWM controllers.

The UCC28C4x-Q1 family supports a fixed-frequency, peak current-mode flyback implementation with UVLO and maximum duty-cycle limit options. UCC28C4X-Q1 can be configured with either primary-side regulation using an auxiliary winding or secondary-side regulation with the use of an opto-coupler. This family of devices features high frequency operation up to 1 MHz with low start up and operating currents, thus minimizing start up loss and operating power consumption for improved efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1-A peak output current capability for driving large external MOSFETs directly.

The UCC28C4x-Q1 family is offered in the 8-pin SOIC (D) package.

The UCC28C4x-Q1 family devices are high performance current-mode PWM controllers.

The UCC28C4x-Q1 family supports a fixed-frequency, peak current-mode flyback implementation with UVLO and maximum duty-cycle limit options. UCC28C4X-Q1 can be configured with either primary-side regulation using an auxiliary winding or secondary-side regulation with the use of an opto-coupler. This family of devices features high frequency operation up to 1 MHz with low start up and operating currents, thus minimizing start up loss and operating power consumption for improved efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1-A peak output current capability for driving large external MOSFETs directly.

The UCC28C4x-Q1 family is offered in the 8-pin SOIC (D) package.
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UCC28C45-Q1 現行 車用 20-V、低功耗電流模式 PWM 控制器、8.4-V/7.6-V UVLO、50% 工作週期 This product has lower UVLO

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* Data sheet UCC28C4x-Q1 Automotive BiCMOS Low-Power Current-Mode PWM Controllers datasheet (Rev. G) PDF | HTML 2022年 9月 12日
Application brief Designing a Robust Traction Inverter Redundant Power Supply From 800 V Battery (Rev. C) PDF | HTML 2023年 2月 16日
Functional safety information UCC28C4x-Q1 Functional Safety FIT rate, FMD, Pin FMA (Rev. A) PDF | HTML 2022年 9月 14日
Selection guide UCC28C4X-Q1 selection guide for automotive isolated DC/DC aux power applications 2019年 6月 7日

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開發板

UCC28C56EVM-066 — 適用於一次側控制 (使用 AUX 線圈) 返馳穩壓器的 UCC28C56H-Q1 評估模組

UCC28C56EVM-066 是高效率的一次側控制 (使用 AUX 線圈) 返馳輔助電源供應，適用於 EV 和 HEV 汽車動力傳動系統。該設計爲 800-V 電池系統提供 15.2-VTYP、40-W 輸出。在 125 V 到 1000 V 的輸入電壓範圍內可提供 40 W。確切的輸出電壓視負載而定。從 40-V 至 125-V 輸入，該設計將提供 20 W。EVM 採用 1700-V 碳化矽 (SiC) MOSFET，是 800-V 電池系統的理想選擇。

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