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TL1453

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具有宽输入电压范围的 3.6V 至 40V 双通道控制器

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LM5155 正在供货 2.2MHz 宽输入电压、1.5A MOSFET 驱动器、非同步升压控制器 Lower quiescent current, wider voltage range

TL1453

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产品详情

Rating Catalog Topology Boost, Buck, Flyback, Forward, SEPIC Vin (max) (V) 40 Vin (min) (V) 3.6 Vout (max) (V) 50 Vout (min) (V) 2.5 Control mode Voltage mode Duty cycle (max) (%) 100 Iq (typ) (A) 0.0017 Operating temperature range (°C) to
Rating Catalog Topology Boost, Buck, Flyback, Forward, SEPIC Vin (max) (V) 40 Vin (min) (V) 3.6 Vout (max) (V) 50 Vout (min) (V) 2.5 Control mode Voltage mode Duty cycle (max) (%) 100 Iq (typ) (A) 0.0017 Operating temperature range (°C) to
SOIC (D) 16 59.4 mm² (9.9 mm × 6 mm) SOP (NS) 16 79.56 mm² (10.2 mm × 7.8 mm) TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm)
  • Complete PWM Power Control Circuitry
  • Completely Synchronized Operation
  • Internal Undervoltage Lockout Protection
  • Wide Supply Voltage Range
  • Oscillator Frequency...500 kHz Max
  • Variable Dead Time Provides Control
    Over Total Range
  • Internal Regulator Provides a Stable 2.5-V Reference Supply
  • Complete PWM Power Control Circuitry
  • Completely Synchronized Operation
  • Internal Undervoltage Lockout Protection
  • Wide Supply Voltage Range
  • Oscillator Frequency...500 kHz Max
  • Variable Dead Time Provides Control
    Over Total Range
  • Internal Regulator Provides a Stable 2.5-V Reference Supply

The TL1453C incorporates the functions required in the construction of two pulse-width-modulation control circuits on a single monolithic chip. Designed primarily for power supply control, the TL1453C 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 1.05 V to 1.45 V. The dead-time control comparator has no offset unless externally altered and may be used to provide 0% to 100% dead time. The on-chip oscillator may be operated by terminating RT (pin 2) and CT (pin 1). During low-VCC conditions, the undervoltage lockout control circuit feature inhibits the output until the internal circuitry is operational.

The TL1453C is characterized for operation from -20°C to 85°C.

The TL1453C incorporates the functions required in the construction of two pulse-width-modulation control circuits on a single monolithic chip. Designed primarily for power supply control, the TL1453C 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 1.05 V to 1.45 V. The dead-time control comparator has no offset unless externally altered and may be used to provide 0% to 100% dead time. The on-chip oscillator may be operated by terminating RT (pin 2) and CT (pin 1). During low-VCC conditions, the undervoltage lockout control circuit feature inhibits the output until the internal circuitry is operational.

The TL1453C is characterized for operation from -20°C to 85°C.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 Dual Pulse-Width-Modulation Control Circuit 数据表 (Rev. A) 1990-12-1

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