Allicdata Part #: | L9954XP-ND |
Manufacturer Part#: |
L9954XP |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | STMicroelectronics |
Short Description: | IC DVR DOOR ACTUATOR POWERSSO-36 |
More Detail: | Automotive PMIC PowerSSO-36 |
DataSheet: | L9954XP Datasheet/PDF |
Quantity: | 1000 |
Specifications
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Applications: | Automotive |
Current - Supply: | 7mA |
Voltage - Supply: | 7 V ~ 28 V |
Operating Temperature: | -40°C ~ 150°C |
Mounting Type: | Surface Mount |
Package / Case: | PowerSSO-36 Exposed Bottom Pad |
Supplier Device Package: | PowerSSO-36 |
Base Part Number: | L9954 |
Description
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L9954XP Application Field and Working Principle
The L9954XP is a switched Mode Power Supply (SMPS) driver specifically designed to work with a variety of high-power external power ICs used in low to medium power applications. It provides up to 20kV AC protection, full galvanic isolation and a wide input range from 12V to 120V. It can also be used in applications such as mobile phone chargers and other DC-DC and LED drivers.The L9954XP has several features which makes it very suitable for a range of applications where high efficiency and wide input range is needed. These include an extremely high switching frequency (up to 500kHz), an adjustable switching frequency, a low output voltage ripple and a very low output overvoltage protection. Additionally, the device features a wide operational temperature range from -40 to 85°C which enables it to operate reliably in a wide range of environmental conditions.The L9954XP drivers the external power ICs very efficiently due to its high-frequency switching. It utilizes a peak current-mode technique which allows it to operate over a wide input range and still maintain constant switching frequency and low output voltage ripple. It also features wide hysteretic PFC control in order to optimize the current transfer ratio between the input and output of the power ICs.In order to protect the load, the L9954XP includes integrated over voltage and over current protections, as well as an adjustable under voltage lockout protection. Additionally, it also has an adjustable soft start time and a programmable input capacitor reset time to ensure that the load is not over stressed due to sudden large inrush currents.The L9954XP is optimized to meet the highest standards of international safety regulations, including UL, EN, IEC and CSA. In order to ensure proper operation, it has built-in open loop, short-circuit and overload protection. Furthermore, the device also has a power-good signal which indicates when the output voltage is within a specified operating range.In conclusion, the L9954XP is a highly versatile, energy efficient and reliable switched Mode Power Supply driver that is suitable for use in a variety of low to medium power applications. Its high-frequency, high efficiency operation and wide input range make it particularly useful for mobile phone chargers and other DC-DC and LED drivers. Additionally, its integrated protections and guidelines for international safety regulations ensure that the load is protected from any undue stress and that its operation is highly reliable and efficient.The specific data is subject to PDF, and the above content is for reference
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