LM51551QDSSRQ1 WSON-12 control chip strong shipment
explain
LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is an asynchronous boost controller with a wide input range using peak current mode control. The device can be used in boost, SEPIC and flyback topologies. If the BIAS pin is connected to the VCC pin, the M5155x-Q1 can be powered by a single battery (minimum voltage is 2.97V). If the BIAS pin voltage is higher than 3.5V, the device can use input power voltage as low as 1.5V.
characteristic
• Meets AEC-Q100 standards for automotive applications
– Temperature class 1: – 40 ° C to+125 ° C TA
• Provide functional safety
– Documents that can help with the design of functional security systems
• Wide input operating range for automotive and portable battery applications
– 3.5V to 45V operating range
– 2.97V to 16V when BIAS=VCC
– When BIAS voltage is greater than or equal to 3.5V, the minimum boost power voltage is 1.5V
– Input transient protection up to 50V
• Minimum battery consumption
– Low turn off current (IQ ≤ 2.6 µ A)
– Low working current (IQ ≤ 480 µ A)
• Small size and low cost of solution
– The maximum switching frequency is 2.2MHz
– 12 pin WSON package with wettable side (3mm × 2mm)
– Integrated error amplifier supports without optical coupler
Perform primary side voltage stabilization (flyback)
– Minimize kick down during start-up (start stop application)
• Low power consumption and high efficiency
– 100mV ± 7% low current limiting threshold
– Powerful 1.5A peak standard MOSFET driver
– Support external VCC power supply
• Avoid AM band interference and crosstalk
– Optional clock synchronization
– Dynamic programmable switching frequency from 100kHz to 2.2MHz
• Integrated protection features
– Constant peak current limitation over the input voltage range
– Optional intermittent mode short circuit protection (refer to component comparison table)
– Programmable Line UVLO
– OVP protection
– Thermal shutdown protection
• Accurate ± 1% accuracy feedback reference
• Programmable additional slope compensation
• Adjustable soft start
• PGOOD indicator
• Use LM5155x with WEBENCH ® Power
Designer Create Custom Design Scheme
application
• Vehicle start stop application
• High voltage lidar power supply
• Multi output flyback application without optical coupler
• LED bias power supply of automobile tail lamp
• Wide input boost, SEPIC and flyback power modules
• Portable speaker applications
LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is an asynchronous boost controller with a wide input range using peak current mode control. The device can be used in boost, SEPIC and flyback topologies. If the BIAS pin is connected to the VCC pin, the M5155x-Q1 can be powered by a single battery (minimum voltage is 2.97V). If the BIAS pin voltage is higher than 3.5V, the device can use input power voltage as low as 1.5V.
characteristic
• Meets AEC-Q100 standards for automotive applications
– Temperature class 1: – 40 ° C to+125 ° C TA
• Provide functional safety
– Documents that can help with the design of functional security systems
• Wide input operating range for automotive and portable battery applications
– 3.5V to 45V operating range
– 2.97V to 16V when BIAS=VCC
– When BIAS voltage is greater than or equal to 3.5V, the minimum boost power voltage is 1.5V
– Input transient protection up to 50V
• Minimum battery consumption
– Low turn off current (IQ ≤ 2.6 µ A)
– Low working current (IQ ≤ 480 µ A)
• Small size and low cost of solution
– The maximum switching frequency is 2.2MHz
– 12 pin WSON package with wettable side (3mm × 2mm)
– Integrated error amplifier supports without optical coupler
Perform primary side voltage stabilization (flyback)
– Minimize kick down during start-up (start stop application)
• Low power consumption and high efficiency
– 100mV ± 7% low current limiting threshold
– Powerful 1.5A peak standard MOSFET driver
– Support external VCC power supply
• Avoid AM band interference and crosstalk
– Optional clock synchronization
– Dynamic programmable switching frequency from 100kHz to 2.2MHz
• Integrated protection features
– Constant peak current limitation over the input voltage range
– Optional intermittent mode short circuit protection (refer to component comparison table)
– Programmable Line UVLO
– OVP protection
– Thermal shutdown protection
• Accurate ± 1% accuracy feedback reference
• Programmable additional slope compensation
• Adjustable soft start
• PGOOD indicator
• Use LM5155x with WEBENCH ® Power
Designer Create Custom Design Scheme
application
• Vehicle start stop application
• High voltage lidar power supply
• Multi output flyback application without optical coupler
• LED bias power supply of automobile tail lamp
• Wide input boost, SEPIC and flyback power modules
• Portable speaker applications
• Battery powered boost, SEPIC and flyback applications
