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reference designLP8774x-Q1 | Demoboard LP877451Q1EVM

Texas Instruments LP8774x-Q1 | Demoboard LP877451Q1EVM

LP877451Q1EVM Evaluation Module

Overview

TopologyBuck-Boost Converter
Input voltage3.1-3.5 V
Output 15 V / 3 A

Description

The LP8774x-Q1 device is designed to meet the power management requirements of the AWR and IWR MMICs in various automotive and industrial radar applications. The device has three step-down DC/DC converters, a 5 V boost converter and a 1.8 V/3.3 V LDO. The LDO is powered from the boost and intended for xWR and peripheral devices IO supply. The device is controlled by an SPI serial interface and by enable signal.The step-down DC/DC converters support programmable switching frequency of 17.6 MHz, 8.8 MHz or 4.4 MHz and have low noise across wide frequency range which enables LDO-free power solution with minimal or no additional passive filtering. LP8774x-Q1 device offers flexible external component selection to optimize the solution in terms of performance or cost. The features of the device target safety-relevant applications with system-safety requirements up to ASIL-C level.

Features

  • Evaluation of LP877451A1RXVRQ1 device features and performance
  • Onboard wide VIN preregulator to generate 3.3-V input to the PMIC from 12-V battery supply
  • Onboard USB2ANY MCU to communicate with the Device GUI and evaluate device safety features like Q&A watchdog

Typical applications

  • Short range and medium range radar, Ultra-short range radar, Long range radar

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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74438356015
SPECWE-MAPI SMT Power Inductor, 1.5 µH, 8.6 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current8.6 A
Saturation Current @ 30%10.2 A
DC Resistance16 mΩ
Self Resonant Frequency48 MHz
Operating Voltage80 V
MountSMT 
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