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LM51561 - Non-synchronous Boost/SEPIC/Flyback Controller

This page provides the datasheet information for the LM51561, a member of the LM5156 Non-synchronous Boost/SEPIC/Flyback Controller family.

Description

The LM5156x (LM5156 and LM51561) 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.

Features

  • Functional Safety-Capable.
  • Documentation available to aid functional safety system design.
  • Suited for wide input operating range battery.

📥 Download Datasheet

Datasheet preview – LM51561

Datasheet Details

Part number LM51561
Manufacturer Texas Instruments
File Size 2.15 MB
Description Non-synchronous Boost/SEPIC/Flyback Controller
Datasheet download datasheet LM51561 Datasheet
Additional preview pages of the LM51561 datasheet.

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Full PDF Text Transcription

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www.ti.com LM5156, LM51561 SNVLSMBI561–5J6A,NLUMAR5Y12506211 SNVSBI6 – JANUARY 2021 LM5156x 2.2-MHz Wide VIN 65-V Non-synchronous Boost/SEPIC/Flyback Controller with Dual Random Spread Spectrum 1 Features • 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.
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