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AC/DC & DC/DC controllers (external FET)

UC1825B-SP

現行

抗輻射 QMLV、30V、2A 雙端 1MHz PWM 控制器

立即訂購
產品規格表

UC1825B-SP

現行
產品規格表 立即訂購

產品詳細資料

Vin (max) (V) 30 Operating temperature range (°C) -55 to 125 Control mode Peak current mode, Voltage Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Space Duty cycle (max) (%) 80
Vin (max) (V) 30 Operating temperature range (°C) -55 to 125 Control mode Peak current mode, Voltage Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Space Duty cycle (max) (%) 80
CFP (HKT) 16 72.136 mm² 10.16 x 7.1 DIESALE (KGD) — See data sheet
  • QML-V qualified, SMD 5962-8768106
  • 5962R8768106VYC:
    • Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID) (1)
  • Compatible with voltage- or current-mode topologies
  • Practical operation switching frequencies to 1 MHz
  • 50-ns propagation delay-to-output
  • High-current dual totem pole outputs (2-A peak)
  • Wide bandwidth error amplifier
  • Fully latched logic with double-pulse suppression
  • Pulse-by-pulse current limiting
  • Soft start/maximum duty-cycle control
  • Undervoltage lockout with hysteresis
  • Low start-up current (1.1 mA)

(1)Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad(Si)/s. Radiation Lot Acceptance Testing is available - contact factory for details.
  • QML-V qualified, SMD 5962-8768106
  • 5962R8768106VYC:
    • Radiation hardness assurance (RHA) up to 100-krad(Si) total ionizing dose (TID) (1)
  • Compatible with voltage- or current-mode topologies
  • Practical operation switching frequencies to 1 MHz
  • 50-ns propagation delay-to-output
  • High-current dual totem pole outputs (2-A peak)
  • Wide bandwidth error amplifier
  • Fully latched logic with double-pulse suppression
  • Pulse-by-pulse current limiting
  • Soft start/maximum duty-cycle control
  • Undervoltage lockout with hysteresis
  • Low start-up current (1.1 mA)

(1)Radiation tolerance is a typical value based upon initial device qualification with dose rate = 10 mrad(Si)/s. Radiation Lot Acceptance Testing is available - contact factory for details.

The UC1825B-SP PWM control device is optimized for high-frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier. This controller is designed for use in either current-mode or voltage mode systems with the capability for input voltage feed-forward.

Protection circuitry includes a current limit comparator with a 1-V threshold, a TTL compatible shutdown port, and a soft start pin which will double as a maximum duty-cycle clamp. The logic is fully latched to provide jitter-free operation and prohibit multiple pulses at an output. An undervoltage lockout section with 800 mV of hysteresis assures low start up current. During undervoltage lockout, the outputs are high impedance.

This device features totem pole outputs designed to source and sink high peak currents from capacitive loads, such as the gate of a power MOSFET. The on-state is designed as a high level.

The UC1825B-SP PWM control device is optimized for high-frequency switched mode power supply applications. Particular care was given to minimizing propagation delays through the comparators and logic circuitry while maximizing bandwidth and slew rate of the error amplifier. This controller is designed for use in either current-mode or voltage mode systems with the capability for input voltage feed-forward.

Protection circuitry includes a current limit comparator with a 1-V threshold, a TTL compatible shutdown port, and a soft start pin which will double as a maximum duty-cycle clamp. The logic is fully latched to provide jitter-free operation and prohibit multiple pulses at an output. An undervoltage lockout section with 800 mV of hysteresis assures low start up current. During undervoltage lockout, the outputs are high impedance.

This device features totem pole outputs designed to source and sink high peak currents from capacitive loads, such as the gate of a power MOSFET. The on-state is designed as a high level.
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類型 標題 日期
* Data sheet UC1825B-SP Class-V, Radiation Hardened High-Speed PWM Controller datasheet (Rev. A) PDF | HTML 2020年 12月 16日
* Radiation & reliability report SEE Test Report of the UC1825B-SP High Speed PWM Controller 2020年 6月 1日
* SMD UC1825B-SP SMD 5962-87681 2020年 5月 19日
* Radiation & reliability report UC1825B-SP Neutron Displacement Damage Characterization 2019年 3月 1日
* Radiation & reliability report UC1825B-SP total ionizing dose (TID) radiation report 2019年 3月 1日
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) 2023年 8月 31日
Application note QML flow, its importance, and obtaining lot information (Rev. C) 2023年 8月 30日
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. A) PDF | HTML 2022年 11月 17日
Application note Single-Event Effects Confidence Interval Calculations (Rev. A) PDF | HTML 2022年 10月 19日
Selection guide TI Space Products (Rev. I) 2022年 3月 3日
Application brief Controlling Input Power for Present and Next-Generation Power Controllers PDF | HTML 2020年 12月 14日
Application note DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 2020年 8月 21日
Application note Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 2020年 5月 18日
E-book Radiation Handbook for Electronics (Rev. A) 2019年 5月 21日
User guide UC1825B-SP evaluation module (EVM) user's guide 2019年 3月 29日

設計與開發

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開發板

UC1825BEVM-CVAL — 5V/50 W 推挽評估模組

The UC1825B-SP EVM shows off the capabilites of the SP process using a push-pull topology. In combination with the UC1901-SP the controller is able to allow for both isolated and non-isolated regulation requirements. The design is able to use an ouput choke to allow for very low ripple for high (...)
使用指南: PDF
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模擬型號

UC1825 TINA-TI Transient Reference Design

SLUM653.TSC (5219 KB) - TINA-TI Reference Design
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模擬型號

UC1825 Unencrypted TINA-TI Transient Spice Model

SLUM673.ZIP (6 KB) - TINA-TI Spice Model
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參考設計

PMP22680 — 具有磁回饋的 40-W、±15-V 返馳參考設計

此參考設計從 70-V 至 120-V DC 輸入電壓產生 40 W 的隔離 ±15 V。此設計使用磁回饋電路來取代光耦合器的功能。
Test report: PDF
參考設計

PMP23033 — 具磁回饋的 40-W 5-V 單開關順向轉換器參考設計

本參考設計可產生從 60-V 至 120-V DC 輸入電壓的 40-W 的隔離 5-V 電壓。此設計使用磁回饋電路來取代光耦合器的功能。
Test report: PDF
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CFP (HKT) 16 檢視選項
DIESALE (KGD) —
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