Dual buck converter and 5-V boost with diagnostic functions for industrial radar
Product details
Parameters
Package | Pins | Size
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)
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.
Technical documentation
| 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
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 TIDEP-01025 BOM.pdf (120KB) -
download TIDEP-01025 Assembly Drawing.pdf (754KB)
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
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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