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DescriptionThe LM5150QRUMTQ1 device is a wide input range automatic boost controller. The device issuitable for use as a pre-boost converter which maintains the output voltage from a vehicle batteryduring automotive cranking or from a back-up battery during the loss of vehicle battery.
The LM5150QRUMTQ1 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 andfast transient response.
The LM5150QRUMTQ1 operates in low IQ standby mode when the input oroutput voltage is above the preset standby thresholds and automatically wakes up when the outputvoltage drops below the preset wake-up threshold.
The device transients in and out of the low IQ standby mode toextend battery life at light load. A single resistor programs the target output regulation voltageas well as the configuration. Additional features include low shutdown current, boost statusindicator, adjustable cycle-by-cycle current limit, and thermal shutdown.
Feature
- AEC-Q100 Qualified:
- Device Temperature Grade 1: –40°C to +125°C AmbientOperating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESDClassification Level C4B
- Wide VIN Input Range From1.5 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 Optionsand Two Selectable Configurations
- 6.8 V, 7.5 V, 8.5 V, or 10.5 V
- Start-Stop or E-CallConfigurations
- Adjustable Switching Frequency From 220 kHz to 2.3MHz
- Automatic Wake-Up and Standby Mode Transition
- Optional Clock Synchronization
- Boost Status Indicator
- 1.5-A Peak MOSFET Gate Driver
- Adjustable Cycle-by-Cycle CurrentLimit
- Thermal Shutdown
- 16-Pin WQFN With Wettable Flanks
- Create a Custom Design Using the LM5150-Q1 With theWEBENCH? Power Designer
All trademarks are the property of their respective owners.
DescriptionThe LM5150-Q1 device is a wide input range automatic boost controller. The device issuitable for use as a pre-boost converter which maintains the output voltage from a vehicle batteryduring 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 andfast transient response.
The LM5150-Q1 operates in low IQ standby mode when the input oroutput voltage is above the preset standby thresholds and automatically wakes up when the outputvoltage drops below the preset wake-up threshold.
The device transients in and out of the low IQ standby mode toextend battery life at light load. A single resistor programs the target output regulation voltageas well as the configuration. Additional features include low shutdown current, boost statusindicator, adjustable cycle-by-cycle current limit, and thermal shutdown.
