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Product details

Parameters

Regulated outputs (#) 3 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 3.5 Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 1 LDO 0 Iq (Typ) (mA) 27 Features Dynamic Voltage Scaling, Enable, Enable Pin, I2C Control, Over Current Protection, Power Good, Power Sequencing, Power Supply and System Monitoring, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Fixed Operating temperature range (C) -40 to 105 Rating Automotive Processor name IWRxxx Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 1 Configurability Factory programmable, Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other Multi-channel ICs (PMIC)

Features

  • FMEDA and Functional Safety Manual Available to Support System-Level Functional Safety Requirements up to SIL-2 (IEC 61508)
  • Two High-Efficiency Step-Down DC/DC converters:
    • Maximum Output Current 3.5 A
    • 2-MHz, 3-MHz, or 4-MHz Switching Frequency
    • Auto PWM/PFM and Forced-PWM Operations
    • Output Voltage = 0.7 V to 3.36 V
  • 5-V 600 mA Boost Converter
  • Two Inputs for External Voltage Monitoring
  • Two Programmable Power-Good Signals
  • Dedicated Reference Voltage for Diagnostics
  • Window Watchdog with Reset Output
  • External Clock Input to Synchronize Switching
  • Spread-Spectrum Modulation
  • Programmable Start-up and Shutdown Delays and Sequencing with Enable Signal
  • Configurable General Purpose Outputs (GPOs)
  • I2C-Compatible Interface
  • Interrupt Function with Programmable Masking
  • Output Short-Circuit and Overload Protection
  • Overtemperature Warning and Protection
  • Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
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Description

The LP87702 contains two step-down DC/DC converters, and a 5-V boost converter to support safety critical applications. The device integrates two voltage monitoring inputs for external power supplies and a window watchdog.

The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output current range for buck converters.

This device contains one-time-programmable (OTP) memory. Each orderable part number has specific OTP settings for a given application. Details of the default OTP configuration for each orderable part number is found in the technical reference manual.

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Technical documentation

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Type Title Date
* Data sheet LP87702 Dual Buck Converter and 5-V Boost With Diagnostic Functions datasheet Mar. 24, 2021
Technical article What’s not in the power MOSFET data sheet part 2: voltage-dependent leakage currents Jul. 23, 2021
Technical article Improving industrial radar RF performance with low-noise, thermal-optimized power solutions Apr. 21, 2021
User guide LP87702K Technical Reference Manual Jun. 05, 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
299
Description

The IWR1843 BoosterPack™ plug-in module is an easy-to-use 77GHz mmWave sensor evaluation board for the single-chip IWR1843 device, with direct connectivity to the TI MCU LaunchPad™ development-kit ecosystem.

The BoosterPack™ contains everything required to start developing software for on-chip (...)

Features
  • Onboard antenna enables field testing
  • XDS110-based JTAG with serial-port interface for flash programming
  • UART-to-USB interface for control, configuration, and data visualization
  • TI LaunchPad development-kit interface to seamlessly connect to TI MCUs
  • CAN connector enables direct interfact to car units
EVALUATION BOARD Download
document-generic User guide
125
Description

The IWR6843 antenna-on-package (AoP) evaluation module (EVM) is an easy-to-use 60-GHz mmWave sensor evaluation platform used to evaluate the IWR6843AOP product, which integrates a wide field-of-view (FoV) antenna. This EVM enables access to point-cloud data and power over a USB interface.

This kit is (...)

Features
  • 60-GHz to 64-GHz mmWave sensor
  • 4 receive (RX) 3 transmit (TX) antenna with 120° azimuth field of view (FoV) and 120° elevation FoV
  • Direct interface with MMWAVEICBOOST and DCA1000
  • Supports 60-pin high-speed interface for host-controlling interface
  • Onboard capability for power-consumption monitoring
EVALUATION BOARD Download
document-generic User guide
135
Description

IWR6843ISK is an easy-to-use 60 GHz mmWave sensor evaluation kit based on IWR6843 device with long-range antenna. The IWR6843ISK may be used to evaluate the IWR6843 and IWR6443 devices. This board enables access to point-cloud data and power over USB interface.

This kit is supported by mmWave tools (...)

Features
  • 60- to 64-GHz mmWave sensor
  • 4 receive (RX) 3 transmit (TX) antenna with 120° azimuth field of view (FoV) and 30° elevation FoV
  • Direct interface with MMWAVEICBOOST and DCA1000
  • Supports 60-pin high-speed interface for host-controlling interface
  • Onboard capability for power-consumption monitoring
EVALUATION BOARD Download
document-generic User guide
125
Description

IWR6843ISK-ODS is an easy-to-use 60 GHz mmWave sensor evaluation kit based on IWR6843 device with wide field-of-view antenna. The IWR6843ISK-ODS may be used to evaluate the IWR6843 and IWR6443 devices. This board enables access to point-cloud data and power over USB interface.

This kit is supported (...)

Features
  • 60- to 64-GHz mmWave sensor
  • 4 receive (RX) 3 transmit (TX) antenna with 120° azimuth field-of-view (FoV) and 120° elevation FoV
  • Direct interface with MMWAVEICBOOST and DCA1000
  • Supports 60-pin high-speed interface for host-controlling interface
  • Onboard capability for power-consumption monitoring
EVALUATION BOARD Download
document-generic User guide
199
Description
The LP8770Q1EVM is designed to meet the power management requirements of the latest processor and platform needs in automotive camera and radar applications. The device contains two step-down DC-DC converters and two linear regulators and general purpose digital output signal. The device is (...)
Features
  • Software Controller
  • USB-TO-I²C interface supports Standard (100kHz), Fast (400kHz), Fast+ (1MHz), and High-Speed (3.4 MHz) clock rate on the I²C bus
  • Versatile GUI: Output current measurement and status indicators
  • Console application allows running scripts.  Application can execute user specified scripts.
  • (...)

Design tools & simulation

CALCULATION TOOL Download
PMIC Efficiency Estimator Tool (PEET)
PEET-GUI — The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
Features
  • Efficiency data based on available measurement data
  • Automatic data plotting
  • Export efficiency curves

Reference designs

REFERENCE DESIGNS Download
mmWave diagnostic and monitoring reference design
TIDEP-01025 This reference design showcases the inbuilt autonomous monitoring functionality in mmWave radar sensors that enhances system efficiency by minimizing the processing load on the host. The design uses a safety diagnostic library (SDL) to run diagnostic tests on programmable digital cores, peripherals (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RHB) 32 View options

Ordering & quality

Information included:
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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

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