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LM5150-Q1 Datasheet(PDF) 1 Page - Texas Instruments |
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LM5150-Q1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 44 page VSUPPLY VLOAD CS LO VIN VOUT LM5150 AGND VCC COMP RT EN STATUS VSET SYNC Copyright © 2017, Texas Instruments Incorporated AVCC PGND Load Current (A) 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 70 75 80 85 90 95 100 D008 VSUPPLY=5.5V VSUPPLY=4.5V VSUPPLY=3.5V VSUPPLY=2.5V Product Folder Order Now Technical Documents Tools & Software Support & Community 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. LM5150-Q1 SNVSAP6 – SEPTEMBER 2017 LM5150-Q1 Wide VIN Automotive Low IQ Boost Controller 1 1 Features 1 • AEC-Q100 Qualified: – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range – Device HBM ESD Classification Level 2 – Device CDM ESD Classification Level C4B • Wide VIN Input Range From 1.5 V to 42 V When VOUT ≥ 5 V (65-V Absolute Maximum) • Low Shutdown Current (IQ ≤ 5 µA) • Low Standby Current (IQ ≤ 15 µA) • Four Programmable Output Voltage Options and Two Selectable Configurations – 6.8 V, 7.5 V, 8.5 V, or 10.5 V – Start-Stop or E-Call Configurations • Adjustable Switching Frequency From 220 kHz to 2.3 MHz • Automatic Wake-Up and Standby Mode Transition • Optional Clock Synchronization • Boost Status Indicator • 1.5-A Peak MOSFET Gate Driver • Adjustable Cycle-by-Cycle Current Limit • Thermal Shutdown • 16-Pin WQFN With Wettable Flanks • Create a Custom Design Using the LM5150-Q1 With the WEBENCH® Power Designer 2 Applications • Automotive Start-Stop System • Automotive Emergency Call System • Battery-Powered Boost Converters 3 Description The LM5150-Q1 device is a wide input range automatic boost controller. The device is suitable for use as a pre-boost converter which maintains the output voltage from a vehicle battery during automotive cranking or from a back-up battery during the loss of vehicle battery. The LM5150-Q1 switching frequency is programmed by a resistor from 220 kHz to 2.3 MHz. Fast switching ( ≥ 2.2-MHz) minimizes AM band interference and allows for a small solution size and fast transient response. The LM5150-Q1 operates in low IQ standby mode when the input or output voltage is above the preset standby thresholds and automatically wakes up when the output voltage drops below the preset wake-up threshold. The device transients in and out of the low IQ standby mode to extend battery life at light load. A single resistor programs the target output regulation voltage as well as the configuration. Additional features include low shutdown current, boost status indicator, adjustable cycle-by-cycle current limit, and thermal shutdown. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LM5150-Q1 WQFN (16) 4.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Circuit Efficiency (VLOAD= 6.8 V, FSW= 440 kHz) |
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