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LT3748EMS#TRPBF
IC REG CTRLR FLYBACK 16MSOP
- Manufacturer
- Mfr. Part #LT3748EMS#TRPBF
- Package MSOP-16
- Datasheet LT3748EMS#TRPBF DataSheet
- In Stock3268
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Specifications
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive, Isolation Capable |
| Topology | Flyback |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 5V ~ 100V |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Enable, Soft Start |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-TFSOP (0.118, 3.00mm Width), 12 Leads |
Overview
Description
The LT3748 operates from a wide input voltage range of 5V to 100V, making it suitable for various applications. It uses a boundary mode switching technique to provide a high level of efficiency and maintain constant frequency operation. The device supports both isolated and non-isolated configurations, and its design helps to minimize the number of external components required, reducing overall system cost and complexity.
Key features include programmable switching frequency, internal soft-start, and programmable undervoltage lockout (UVLO). The LT3748 can deliver up to several watts of output power, depending on the design and specific requirements of the application. Its compact footprint and high level of integration make it an appealing choice for designers looking to develop efficient and cost-effective power supply solutions.
Features
1. Wide Input Voltage Range: It supports a 5V to 100V input voltage range, making it versatile for various applications.
2. Output Power Capability: Delivers up to 100W output power, suitable for high-power applications.
3. No Opto-Isolator Requirement: Utilizes boundary mode and a low-side switch, eliminating the need for an opto-isolator or third winding for regulation.
4. Integrated Power Switch: Comes with an integrated 100V, 5A power switch to simplify design and reduce component count.
5. Adjustable Switching Frequency: Offers a programmable switching frequency up to 1MHz, enabling optimization for efficiency or size.
6. Current-Mode Control: Ensures excellent line and load regulation.
7. Soft-Start and Programmable Undervoltage Lockout (UVLO): Features to prevent inrush current and allow for controlled startup.
8. Thermal Shutdown Protection: Includes thermal shutdown to protect the device from overheating.
9. Compact Package: Available in a thermally enhanced 16-lead MSOP package.
These features make the LT3748EMS#TRPBF ideal for isolated power supplies in industrial, automotive, and telecom applications.
Package
Pinout
Key functions of the LT3748 include:
1. Primary Side Regulation (PSR): It eliminates the need for an opto-isolator or third winding for output voltage regulation.
2. Wide Input Voltage Range: Supports input voltages from 5V to 100V.
3. High Efficiency: Optimized for efficient power conversion.
4. Current Mode Control: Provides good line and load regulation with fast transient response.
5. Programmable Switching Frequency: Adjustable frequency to optimize performance for various applications.
6. Soft Start and Frequency Foldback: These features help reduce inrush current and increase reliability.
7. Integrated Protection Features: Includes over-current, over-voltage, and thermal shutdown protection.
These features make the LT3748 suitable for a wide range of applications, including industrial, medical, and telecom power supplies.
Manufacturer
Application
Equivalent
1. Texas Instruments LM5180 - A high-voltage flyback/boost controller.
2. Maxim Integrated MAX17595 - An isolated flyback controller with integrated MOSFET.
3. ON Semiconductor NCP1568 - A PWM current-mode controller for isolated DC-DC converters.
4. STMicroelectronics VIPer35 - An offline high-voltage converter.
Ensure compatibility in terms of specifications and application requirements before substituting.
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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