IC manufacturers Texas Instruments

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Texas Instruments LP87745 | Demoboard TIDA-010281

mmWave radar sensing reference design for safer robot perception

Overview

TopologyBuck Converter
Input voltage3-4 V
Output 11.8 V / 3 A
IC revisionDecember 2025

Description

This reference design features a safety millimeter- wave (mmWave) radar sensor (IWR6843AOP) and safety power management integrated circuit (PMIC) (LP87745) to enable safe perception in robotics and industrial automation applications. The design supports Q&A watchdog communication, level or PWM error signal monitoring (ESM), safety diagnostics, and radar reset functions for autonomous mobile robots (AMRs), automated guided vehicles (AGVs), humanoids, industrial robots, and collaborative robots.

Features

Functional safety compliant radar with hardware integrity level up to SIL-2 and systematic capability of SIL-3Functional safety compliant PMIC with hardware integrity level up to SIL-2 and systematic capability of SIL-3Software support for watchdog communication between PMIC and radarProvides test results for:Radar performance with the safety PMICQ&A watchdog functionality from the PMICLevel or PWM error signal monitoring (ESM)Safety diagnostics and radar reset

Typical applications

  • Occupancy detection (people tracking, people counting)
  • Mobile robot radar
  • Battery powered motion detector
  • Humanoid robot sensor module
  • Industrial robot radar

Parts approved by Texas Instruments

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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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SPECWE-MAPI SMT Power Inductor, 4.7 µH, 5.1 A
Simu­lation
Availability
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Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Inductance4.7 µH
Performance Rated Current5.1 A
Saturation Current @ 30%8.2 A
DC Resistance39.9 mΩ
Self Resonant Frequency24 MHz
Operating Voltage80 V
MountSMT 
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