DatasheetsPDF.com

LM5119Q

Part Number	LM5119Q
Manufacturer	Texas Instruments
Description	Wide Input Range Dual Synchronous Buck Controller
Published	May 13, 2020
Detailed Description	Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM5119Q SLUSD96...
Datasheet	LM5119Q PDF File

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM5119Q SLUSD96 – APRIL 2018 LM5119Q Wide Input Range Dual Synchronous Buck Controller 1 Features •1 Qualified for Automotive Applications • AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range – Device HBM ESD Classification Level 1C – Device CDM ESD Classification Level C4A • Emulated Peak Current Mode Control • Wide Operating Range (5.
5 V to 65 V) • Easily Configurable for Dual Outputs or Interleaved Single Output • Robust 3.
3-A Peak Gate Drive • Switching Frequency Programmable to 750 kHz • Optional Diode Emulation Mode • Programmable Output from 0.
8 V • Precision 1.
5% Voltage Reference • Programmable Current Limit • Hiccup Mode Overload Protection • Programmable Soft-Start • Programmable Line Undervoltage Lockout • Automatic Switch-Over to External Bias Supply • Channel2 Enable Logic Input • Thermal Shutdown • Leadless 32-Pin WQFN Package 2 Applications • Automotive Infotainment • Automotive USB Accessory Adapters 3 Description The LM5119Q device is a dual synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply.
The control method is based upon current mode control using an emulated current ramp.
Current mode control provides inherent line feedforward, cycle-by-cycle current limiting and easeof-loop compensation.
The use of an emulated control ramp reduces noise sensitivity of the pulsewidth modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications.
The switching frequency is programmable from 50 kHz to 750 kHz.
The LM5119Q device drives external high-side and lowside NMOS power switches with adaptive dead-time control.
A user-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions.
A high voltag...

Similar Datasheet

LM5110 Dual 5A Compound Gate Driver - National Semiconductor
LM5110 Dual 5-A Compound Gate Driver - Texas Instruments
LM5111 Dual 5A Compound Gate Driver - National Semiconductor
LM5111 Dual 5-A Compound Gate Driver - Texas Instruments
LM5112 Tiny 7A MOSFET Gate Driver - National Semiconductor
LM5112 Tiny 7-A MOSFET Gate Driver - Texas Instruments
LM5112-Q1 Tiny 7-A MOSFET Gate Driver - Texas Instruments
LM5113 100V Half-Bridge Gate Driver - Texas Instruments
LM5114 Low-Side Gate Driver - Texas Instruments
LM5115 Secondary Side Post Regulator / Synchronous Buck Controller - Texas Instruments

@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)