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.
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.