Dual buck converter and 5-V boost with diagnostic functions
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 Qualified for Automotive Applications:
- Device Temperature Grade 1: –40°C to +125°C, TA
- FMEDA and Functional Safety Manual available to support your ASIL compliant system designs
- 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 Boost Converter With Bypass-Mode Option:
- Maximum Output Current 600 mA
- 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 Supporting Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
- 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-Q1 helps meet the power management requirements of the latest platforms, particularly in automotive radar and camera and industrial radar applications. The device contains two step-down DC/DC converters, and a 5-V boost converter/bypass switch. 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. The LP87702-Q1 uses remote voltage sensing to compensate IR drop between the converter output and the point-of-load, thus improving the accuracy of the output voltage.
Programmable start-up and shutdown sequences synchronized to the enable signal are supported, including general purpose digital outputs. During start-up and voltage change, the device controls the output slew rate for minimum output voltage overshoot and inrush current. 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 can be found in the technical reference manual.
More information
Functional safety documents and other information are available. Request now
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | LP87702-Q1 Dual Buck Converter and 5-V Boost With Diagnostic Functions datasheet (Rev. B) | Aug. 15, 2019 |
Application note | The Benefits of FlexPower PMIC Devices (Rev. B) | Nov. 23, 2020 | |
Technical articles | Powering levels of autonomy: a quick guide to DC/DC solutions for SAE autonomy levels | Nov. 18, 2020 | |
User guide | Power Supply Design for xWR Radar Using LP87702K-Q1 | Jun. 22, 2020 | |
User guide | LP87702-Q1 Technical Reference Manual (Rev. D) | Apr. 09, 2020 | |
User guide | LP877020-Q1 Technical Reference Manual (Rev. A) | Apr. 09, 2020 | |
User guide | LP877020-Q1 Configuration Guide | Feb. 18, 2020 | |
Technical articles | How to meet European Commission ADAS requirements with TI DC/DC converters | May 08, 2019 | |
User guide | Automated Parking System Reference Design Using 77-GHz mmWave Sensor | Jan. 24, 2019 | |
More literature | Automotive mmWave sensors | Jul. 10, 2018 | |
User guide | LP8770Q1EVM Evaluation Module User Guide (Rev. A) | Jun. 13, 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The AWR1843 BoosterPack™ plug-in module is an easy-to-use 77GHz mmWave sensor evaluation board for the single-chip AWR1843 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
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
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
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
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
Description
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
Features
- Efficiency data based on available measurement data
- Automatic data plotting
- Export efficiency curves
Reference designs
Design files
-
download TIDA-01570 BOM.pdf (65KB) -
download TIDA-01570 Assembly Drawing.pdf (371KB) -
download TIDA-01570 PCB.pdf (3439KB) -
download TIDA-01570 CAD Files.zip (2218KB) -
download TIDA-01570 Gerber.zip (1368KB)
Design files
-
download TIDA-020004 BOM.pdf (37KB) -
download TIDA-020004 Assembly Drawing.pdf (365KB) -
download TIDA-020004 PCB.pdf (3586KB) -
download TIDA-020004 CAD Files.zip (3744KB) -
download TIDA-020004 Gerber.zip (1144KB)
Design files
-
download TIDEP-01021 BOM.pdf (67KB) -
download TIDEP-01021 Assembly Drawing.pdf (707KB) -
download TIDEP-01021 PCB.pdf (4190KB) -
download TIDEP-01021 CAD Files.zip (4124KB) -
download TIDEP-01021 Gerber.zip (4726KB)
Design files
-
download PMP22334 BOM.pdf (139KB) -
download PMP22334 Assembly Drawing.pdf (236KB) -
download PMP22334 PCB.pdf (208KB) -
download PMP22334 CAD Files.zip (329KB) -
download PMP22334 Gerber.zip (2553KB)
Design files
-
download TIDA-020011 BOM.pdf (58KB) -
download TIDA-020011 Assembly Drawing.pdf (253KB) -
download TIDA-020011 CAD Files.zip (1402KB) -
download TIDA-020011 Gerber (Rev. A).zip (1088KB) -
download TIDA-020011 PCB (Rev. A).pdf (2309KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RHB) | 32 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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