CS5211GDR14

Frequency - Switching:	150kHz ~ 750kHz
Base Part Number:	CS5211
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	--
Series:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 14 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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CS5211GDR14 Application Field and Working Principle

CS5211GDR14 is a high-performance DC/DC switching controller from Texas Instruments, specifically designed for applications requiring high power density and wide input-voltage range such as automotive energy efficiency, industrial automation and solar energy. This device offers superior features such as low quiescent current, fast-transient response, integrated fault protection and synchronous operation with integrated gate driver. This controller is designed for high-efficiency synchronous buck topologies with secondary-side synchronous rectification, making it optimal for DC/DC converters operating in a wide variety of voltage schemes.

Type of Product

The CS5211GDR14 is a high-performance DC/DC switching controller that is part of the Power Management IC (PMIC) voltage regulator family, and more particularly, part of the DC/DC switching controllers. It is well suited for a power supply needs the most demanding applications.

Applications

The CS5211GDR14 is ideal for a wide range of applications such as Automotive Electronics and Industrial Automation due to its wide input voltage range and high power density. This IC can efficiently convert an input voltage power source into an output voltage that is suitable for and supports the specific needs of these applications, such as:

• Automotive Safety Systems
• Alternative Energy Solutions
• Portable Electronics
• Industrial Automation Equipment

Features

The CS5211GDR14 features include:

• Integrated Fault Protection - Overvoltage, Undervoltage, Over current and Overtemperature
• Low Quiescent Current - Reduces system power consumption
• Integrated Gate Driver - Drives MOSFETs and rectifiers synchronously
• Fast Transient Response - Provides fast loop response and improved efficiency
• Wide Input Voltage Range - Extends system operations to 12V and 48V automotive systems

How It Works

The CS5211GDR14 works by converting an input voltage source into an output voltage that is suitable for the specific needs of a given application. This is done by routing the input voltage through an inductor that is connected to an output voltage through a controlled freewheeling diode. During the charging cycle, the inductor stores potential energy as current and during the discharging cycle, the inductor releases potential energy and the diode helps to discharge the stored energy in a controlled manner. The controller then monitors the input voltage, output voltage, the primary MOSFETs, and the output diode, and adjusts its control algorithm in order to maintain optimal and efficient operation. This controller also integrates an integrated gate driver to drive the MOSFET and rectifier switches synchronously.

Benefits

The CS5211GDR14 offers many benefits for a large variety of applications such as automotive and industrial automation. The fast transient response and wide input voltage range make it ideal for efficient energy conversion and continuous operation, even in harsh environmental conditions. Its integrated fault protection ensures that the device always performs to its optimal level, even in the presence of an overload or overvoltage conditions. Furthermore, the integrated gate driver improves overall efficiency and helps to reduce power consumption.

Conclusion

The CS5211GDR14 is a reliable and efficient high-speed DC/DC switching controller from Texas Instruments, specifically designed for automotive and industrial automation applications. It offers a wide input voltage range and fast-transient response, integrated fault protection, and an integrated gate driver, making it optimal for DC/DC converters operating in a wide variety of applications and voltage schemes. This device offers great performance, making it ideal for power supply needs the most demanding applications.

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