The TL1451A-EP incorporates on a single monolithic chip all the functions required in the construction of two pulse-width modulation (PWM) control circuits. Designed primarily for power-supply control, the TL1451A-EP contains an on-chip 2.5-V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry, and dual common-emitter output transistor circuits.

The uncommitted output transistors provide common-emitter output capability for each controller. The internal amplifiers exhibit a common-mode voltage range from 1.04 V to 1.45 V. The dead-time control (DTC) comparator has no offset unless externally altered and can provide 0% to 100% dead time. The on-chip oscillator can be operated by terminating RT and CT. During low V_CC conditions, the undervoltage lockout control circuit feature locks the outputs off until the internal circuitry is operational.

The TL1451A-EP is characterized for operation from -55°C to 125°C.

• Controlled Baseline
  • One Assembly/Test Site, One Fabrication Site
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree(1)
• Complete Pulse-Width Modulation (PWM) Power-Control Circuitry
• Completely Synchronized Operation
• Internal Undervoltage Lockout Protection
• Wide Supply-Voltage Range
• Internal Short-Circuit Protection
• Oscillator Frequency . . . 500 kHz Max
• Variable Dead Time Provides Control Over Total Range
• Internal Regulator Provides a Stable 2.5-V Reference Supply

(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

• Vin (Min) (V)
• 3.6
• Vin (Max) (V)
• 50
• Vout (Min) (V)
• 1
• Vout (Max) (V)
• 50
• Regulated outputs (#)
• 2
• Switching frequency (Min) (kHz)
• 50
• Switching frequency (Max) (kHz)
• 500
• Iq (Typ) (mA)
• 1.7
• Features
• Synchronous Rectification
• Duty cycle (Max) (%)
• 100
• Rating
• HiRel Enhanced Product

TL1451A-EP的完整型号有：TL1451AMDREP、V62/06611-01XE，以下是这些产品的关键参数及官网采购报价：

TL1451AMDREP，工作温度：-55 to 125，封装：SOIC (D)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TL1451AMDREP的批量USD价格：1.994（1000+）

V62/06611-01XE，工作温度：-55 to 125，封装：SOIC (D)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网V62/06611-01XE的批量USD价格：1.994（1000+）

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PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)

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