LM51561H

現行

具備展頻和 hiccup 的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器

產品詳細資料

Vin (min) (V) 1.5 Vin (max) (V) 60 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Boost, Flyback, SEPIC Rating Catalog Vout (min) (V) 1.5 Vout (max) (V) 300 Features Adjustable current limit, Enable, Frequency synchronization, Hiccup mode protection, Light Load Efficiency, Nonsynchronous rectification, Power good, UVLO adjustable Iq (typ) (µA) 490 Duty cycle (max) (%) 93 TI functional safety category Functional Safety-Capable
Vin (min) (V) 1.5 Vin (max) (V) 60 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Boost, Flyback, SEPIC Rating Catalog Vout (min) (V) 1.5 Vout (max) (V) 300 Features Adjustable current limit, Enable, Frequency synchronization, Hiccup mode protection, Light Load Efficiency, Nonsynchronous rectification, Power good, UVLO adjustable Iq (typ) (µA) 490 Duty cycle (max) (%) 93 TI functional safety category Functional Safety-Capable
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Suited for wide input operating range battery applications
    • 3.5-V to 60-V Operating range (65-V abs max)
    • 2.97-V to 16-V when BIAS = VCC
    • Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
    • Input transient protection up to 65 V
    • Minimized battery drain
      • Low shutdown current ( IQ ≤ 2.6 µA )
      • Low operating current ( IQ ≤ 490 µA )
  • Small solution size and low cost
    • Maximum switching frequency of 2.2 MHz
    • Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
  • EMI mitigation
    • Selectable dual random spread spectrum
  • Higher efficiency with low-power dissipation
    • 100-mV ±7% accurate current limit threshold
    • Strong 1.5-A peak standard MOSFET driver
    • Supports external VCC supply
  • Avoid AM band interference and crosstalk
    • Optional clock synchronization
    • Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
  • Integrated protection features
    • Constant peak current limiting over input voltage
    • Optional hiccup mode overload protection (see the Device Comparison Table)
    • Programmable line UVLO
    • OVP protection
    • Thermal shutdown
  • Accurate ±1% accuracy feedback reference
  • Programmable extra slope compensation
  • Adjustable soft start
  • PGOOD indicator
  • 14-Pin HTSSOP package (5.0 mm × 4.4 mm)
  • Create a custom design using the LM5156xH with the WEBENCH power designer
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Suited for wide input operating range battery applications
    • 3.5-V to 60-V Operating range (65-V abs max)
    • 2.97-V to 16-V when BIAS = VCC
    • Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
    • Input transient protection up to 65 V
    • Minimized battery drain
      • Low shutdown current ( IQ ≤ 2.6 µA )
      • Low operating current ( IQ ≤ 490 µA )
  • Small solution size and low cost
    • Maximum switching frequency of 2.2 MHz
    • Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
  • EMI mitigation
    • Selectable dual random spread spectrum
  • Higher efficiency with low-power dissipation
    • 100-mV ±7% accurate current limit threshold
    • Strong 1.5-A peak standard MOSFET driver
    • Supports external VCC supply
  • Avoid AM band interference and crosstalk
    • Optional clock synchronization
    • Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
  • Integrated protection features
    • Constant peak current limiting over input voltage
    • Optional hiccup mode overload protection (see the Device Comparison Table)
    • Programmable line UVLO
    • OVP protection
    • Thermal shutdown
  • Accurate ±1% accuracy feedback reference
  • Programmable extra slope compensation
  • Adjustable soft start
  • PGOOD indicator
  • 14-Pin HTSSOP package (5.0 mm × 4.4 mm)
  • Create a custom design using the LM5156xH with the WEBENCH power designer

The LM5156xH (LM5156H and LM51561H) device is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

The device can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.

The LM5156xH (LM5156H and LM51561H) device is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

The device can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.

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類型 標題 日期
* Data sheet LM5156xH 2.2-MHz Wide VIN 65-V Non-synchronous Boost/SEPIC/Flyback Controller with 150°C Maximum Junction Temperature datasheet PDF | HTML 2020年 9月 23日
Application note How to Design a Boost Converter Using the LM5156 (Rev. A) PDF | HTML 2022年 11月 14日
Application note EMI Reduction Technique, Dual Random Spread Spectrum (Rev. A) 2022年 10月 19日
Functional safety information LM34966-Q1, LM5156x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution (Rev. C) PDF | HTML 2021年 4月 28日
EVM User's guide LM5156HEVM-FLY Evaluation Module PDF | HTML 2020年 9月 15日

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開發板

LM5156HEVM-FLY — LM5156H 返馳式控制器評估模組

The LM5156HEVM-FLY evaluation module showcases the features and performance of the LM51561 (TSSOP package) as wide input non-synchronous flyback controller. The standard configuration is designed to provide a regulated output of 5V at 4A from an input of 18V to 36V, switching at 250 kHz. This (...)
使用指南: PDF | HTML
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模擬型號

Unencrypted LM5156-Q1 PSpice Transient Model Package (Rev. H)

SNVMBV9H.ZIP (205 KB) - PSpice Model
模擬型號

Unencrypted LM5156x-Q1 PSpice Average Model (Rev. A)

SNVMC69A.ZIP (43 KB) - PSpice Model
計算工具

SNVC240 LM5155/56 Flyback Controller Quick Start Calculator

LM5155/56 Flyback Controller Quick Start Calculator
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LM5155 2.2-MHz 大範圍 VIN、1.5-A MOSFET 驅動器、非同步升壓控制器 LM5155-Q1 2.2MHz 大範圍 VIN、1.5A MOSFET 驅動器、非同步升壓控制器、符合 AEC-Q100 認證 LM51551 具有 Hiccup 的 2.2MHz 寬 VIN 非同步升壓、返馳和 SEPIC 控制器 LM51551-Q1 2.2MHz 寬 VIN、1.5A MOSFET 驅動器、非同步升壓控制器、打嗝模式保護 LM5156 具備雙隨機展頻的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器 LM5156-Q1 具備雙隨機展頻的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器 LM51561 具備展頻的 2.2MHz 大範圍輸入非同步升壓、SEPIC、返馳控制器 LM51561-Q1 具備展頻和 hiccup 的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器 LM51561H 具備展頻和 hiccup 的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器 LM51561H-Q1 具備展頻和 hiccup 的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器 LM5156H 具備雙隨機展頻的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器 LM5156H-Q1 具備雙隨機展頻的 2.2-MHz 大範圍 VIN 非同步升壓、返馳和 SEPIC 控制器
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LM5155EVM-FLY LM5155 返馳式控制器評估模組 LM5156HEVM-FLY LM5156H 返馳式控制器評估模組
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 14 Ultra Librarian

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  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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