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LM51551-Q1

Texas Instruments
Part Number LM51551-Q1
Manufacturer Texas Instruments
Description 2.2-MHz Wide Input Nonsynchronous Boost Flyback Controller
Published Apr 12, 2020
Detailed Description LM5155-Q1, LM51551-Q1 SNVSAY4F – AUGUST 2018 – REVISED AUGUST 2023 LM5155x-Q1 2.2-MHz Wide Input Nonsynchronous Boost, S...
Datasheet PDF File LM51551-Q1 PDF File

LM51551-Q1
LM51551-Q1

Overview
LM5155-Q1, LM51551-Q1 SNVSAY4F – AUGUST 2018 – REVISED AUGUST 2023 LM5155x-Q1 2.
2-MHz Wide Input Nonsynchronous Boost, SEPIC, Flyback Controller 1 Features • AEC-Q100 qualified for automotive applications – Temperature grade 1: –40°C to +125°C TA • Functional Safety-Capable – Documentation available to aid functional safety system design • Wide input operating range for car and portable battery applications – 3.
5-V to 45-V Operating range – 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 50 V • Minimized battery drain – Low shutdown current (IQ ≤ 2.
6 µA) – Low operating current (IQ ≤ 480 µA) • Small solution size and low cost – Maximum switching frequency of 2.
2 MHz – 12-Pin WSON package (3 mm × 2 mm) with wettable flanks and non-wettable flank option – Integrated error amplifier allows primary-side regulation without optocoupler (flyback) – Minimized undershoot during cranking (start- stop application) • Higher ...


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