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UC1825-SP

正在供貨

耐輻射 QMLV、30V 輸入、1.5A 雙路輸出 1MHz PWM 控制器

可提供此產(chǎn)品的更新版本

功能與比較器件相同，且具有相同引腳
UC1825B-SP 正在供貨 耐輻射 QMLV、30V 輸入、2A 雙輸出 1MHz PWM 控制器 Improved TID performance (100 krad) with increased max frequency (1 MHz) and dual outputs for half/full-bridge, or push-pull topologies.

產(chǎn)品詳情

Rating Space Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Vin (max) (V) 30 Vin (min) (V) 10 Control mode Current Features Error amplifier, Multi-topology, Soft start, Synchronization pin Operating temperature range (°C) -55 to 125 Duty cycle (max) (%) 80
Rating Space Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Vin (max) (V) 30 Vin (min) (V) 10 Control mode Current Features Error amplifier, Multi-topology, Soft start, Synchronization pin Operating temperature range (°C) -55 to 125 Duty cycle (max) (%) 80
CDIP (J) 16 135.3552 mm2 19.56 x 6.92 LCCC (FK) 20 79.0321 mm2 8.89 x 8.89
  • QML-V Qualified, SMD 5962-87681
  • Rad-Tolerant: 30 kRad (Si) 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 (1.5 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/sec. Radiation Lot Acceptance Testing is available - contact factory for details.
  • QML-V Qualified, SMD 5962-87681
  • Rad-Tolerant: 30 kRad (Si) 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 (1.5 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/sec. Radiation Lot Acceptance Testing is available - contact factory for details.

The UC1825 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 UC1825 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(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 High-Speed PWM Controller. 數(shù)據(jù)表 (Rev. A) 2012年 3月 22日
* SMD UC1825-SP SMD 5962-87681 2016年 7月 8日
* 輻射與可靠性報告 UC1825-SP Radiation Test Report (5962-8768104VEA) 2015年 5月 8日
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設(shè)計和開發(fā)

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仿真模型

UC1825 TINA-TI Transient Reference Design

SLUM653.TSC (5219 KB) - TINA-TI Reference Design
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仿真模型

UC1825 Unencrypted TINA-TI Transient Spice Model

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

PMP22680 — 帶磁反饋的 40W、±15V 反激式參考設(shè)計

此參考設(shè)計在 40W 下可從 70V 至 120V 直流輸入電壓生成隔離式 ±15V 輸出。該設(shè)計使用磁反饋電路來替代光耦合器的功能。
測試報告: PDF
參考設(shè)計

PMP23033 — 具有磁反饋的 40W 5V 單開關(guān)正向轉(zhuǎn)換器參考設(shè)計

此參考設(shè)計在 40W 下從 60V 至 120V 直流輸入電壓生成隔離式 5V 電壓。該設(shè)計使用磁反饋電路來替代光耦合器的功能。
測試報告: PDF
封裝 引腳 CAD 符號、封裝和 3D 模型
CDIP (J) 16 Ultra Librarian
LCCC (FK) 20 Ultra Librarian

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

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