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LT3496IFE
Product Overview
Category
The LT3496IFE belongs to the category of integrated circuits (ICs) and is specifically designed as a step-up DC/DC converter.
Use
It is commonly used for driving LED strings in backlighting applications for LCD displays, as well as in automotive, industrial, and general lighting applications.
Characteristics
- High efficiency
- Wide input voltage range
- Adjustable frequency
- Integrated soft-start
- Open LED protection
- Short-circuit protection
Package
The LT3496IFE is available in a 16-lead plastic TSSOP package.
Essence
The essence of LT3496IFE lies in its ability to efficiently drive LED strings with precision and reliability.
Packaging/Quantity
The LT3496IFE is typically packaged in reels containing 2500 units.
Specifications
- Input Voltage Range: 2.5V to 30V
- Output Voltage Range: Up to 44V
- Switching Frequency: 200kHz to 2MHz
- Operating Temperature Range: -40°C to 125°C
- Maximum Duty Cycle: 88%
Detailed Pin Configuration
- VIN: Input voltage
- SW: Switch node connection
- GND: Ground
- FB: Feedback pin
- RT: Timing resistor
- CT: Timing capacitor
- VCC: Internal bias supply
- SS: Soft-start capacitor
- EN/UVLO: Enable/undervoltage lockout
- PG: Power good flag
- ISET: LED current set
- IADJ: LED current adjust
- ADJ: LED current adjust
- LX: Inductor connection
- VOUT: Output voltage
- VLED: LED cathode connection
Functional Features
- Precision LED Current Regulation
- Wide Input and Output Voltage Ranges
- Programmable Switching Frequency
- Integrated Soft-Start
- Open LED Protection
- Short-Circuit Protection
Advantages and Disadvantages
Advantages
- High efficiency
- Wide input voltage range
- Comprehensive protection features
- Compact package size
Disadvantages
- Limited maximum duty cycle
- Requires external components for operation
Working Principles
The LT3496IFE operates by converting a lower input voltage to a higher output voltage required for driving LED strings. It achieves this through a step-up switching regulator topology, providing precise current regulation for the connected LEDs.
Detailed Application Field Plans
The LT3496IFE finds extensive application in various fields including: - LCD backlighting - Automotive lighting systems - Industrial lighting solutions - General illumination
Detailed and Complete Alternative Models
Some alternative models to LT3496IFE include: - LT3494 - LT3495 - LT3497 - LT3498
In conclusion, the LT3496IFE is a versatile and efficient step-up DC/DC converter designed for driving LED strings in a wide range of applications, offering high performance and reliability.
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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng LT3496IFE trong giải pháp kỹ thuật
What is the input voltage range of LT3496IFE?
- The input voltage range of LT3496IFE is 2.5V to 30V.
What is the maximum output current of LT3496IFE?
- The maximum output current of LT3496IFE is 1.3A.
Can LT3496IFE be used for LED driver applications?
- Yes, LT3496IFE is commonly used as an LED driver due to its high efficiency and dimming capabilities.
What is the typical switching frequency of LT3496IFE?
- The typical switching frequency of LT3496IFE is 1MHz.
Does LT3496IFE have built-in protection features?
- Yes, LT3496IFE includes overvoltage protection, overcurrent protection, and thermal shutdown features.
Is LT3496IFE suitable for automotive applications?
- Yes, LT3496IFE is designed to operate in automotive environments and can be used in automotive lighting and other systems.
What type of control interface does LT3496IFE support?
- LT3496IFE supports both analog and PWM dimming control interfaces.
Can LT3496IFE be used in boost or buck-boost configurations?
- Yes, LT3496IFE can be configured for both boost and buck-boost topologies.
What is the operating temperature range of LT3496IFE?
- The operating temperature range of LT3496IFE is -40°C to 125°C.
Does LT3496IFE require external compensation components?
- No, LT3496IFE has internal compensation, reducing the need for external components.