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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP87702 датащи(PDF) 1 Page - Texas Instruments |
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LP87702 датащи(HTML) 1 Page - Texas Instruments |
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1 / 99 page  LP87702-Q1 Dual Buck Converter and 5-V Boost With Diagnostic Functions 1 Features • AEC-Q100 Qualified for Automotive Applications: – Device Temperature Grade 1: –40°C to +125°C, TA • Functional Safety Quality-Managed – Documentation Available to Aid Functional Safety System Design – Two Inputs for External Voltage Monitoring – Two Programmable Power-Good Signals – Dedicated Reference Voltage for Diagnostics – Window Watchdog with Reset Output – Output Short-Circuit and Overload Protection – Overtemperature Warning and Protection – Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO) • 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 – Maximum Output Current 600 mA • 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 2 Applications • Automotive Radar • Automotive Camera • Automotive Sensor Fusion • Industrial Radar • Building Automation 3 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 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. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LP87702-Q1 VQFN (32) 5.00 mm × 5.00 mm (1) See the orderable addendum at the end of the data sheet for all available packages. Copyright © 2017, Texas Instruments Incorporated SW_B0 VIN_B0 VIN_B1 VANA VIN FB_B0 VOUT0 LOAD SDA (EN3) SCL (EN2) nINT CLKIN (GPO2/WD_DIS) GNDs EN1 SW_B1 FB_B1 VOUT1 PG0 VMON1 VMON2 PG1 (GPO1) WDI WD_RESET SW_BST VOUT_BST VOUT2 LOAD LOAD GPO0 NRST Simplified Schematic Output Current (mA) 1 10 100 1000 5000 50 60 70 80 90 100 Exce VIN=3.3V, VOUT=1.2V VIN=3.3V, VOUT=1.8V VIN=3.3V, VOUT=2.3V Buck Efficiency vs Output Current LP87702-Q1 SNVSAL1C – DECEMBER 2017 – REVISED JUNE 2021 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Аналогичный номер детали - LP87702 |
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Аналогичное описание - LP87702 |
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