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NCP1337DR2G
+NomenclatureIC OFFLINE SWITCH FLYBACK 7SOIC
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FabricantSemi - conducteurs
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Pièce fabricant #NCP1337DR2G
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Package SOIC-8
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En stock7018
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Spécifications
| Attribut | Valeur |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Last Time Buy |
| Output Isolation | Isolated |
| Internal Switch(s) | No |
| Topology | Flyback |
| Voltage - Start Up | 12 V |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 20V |
| Frequency - Switching | 130kHz |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, Short Circuit |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Supplier Device Package | 7-SOIC |
Présentation
Description
Key features of the NCP1337DR2G include its ability to operate in quasi-resonant mode, which enhances efficiency by reducing switching losses. It also has built-in protection mechanisms like overvoltage, overcurrent, and thermal shutdown, ensuring the safety and reliability of the power supply. Additionally, the controller supports adjustable over-power protection and features a high-voltage start-up circuit, which minimizes standby power consumption.
The device is housed in a compact SOIC-7 package, making it suitable for space-constrained designs. Its design is targeted at improving the power factor and reducing electromagnetic interference in line-operated power supplies. These characteristics make the NCP1337DR2G an ideal choice for applications like adapters, chargers, and other small power electronic devices.
Equivalent
1. UCC2800 series by Texas Instruments
2. UC3842 series by ON Semiconductor
3. VIPer22A by STMicroelectronics
4. ICE3BR1065J by Infineon Technologies
For exact replacements, check the electrical specifications and pin configurations to ensure compatibility.
Features
1. Quasi-Resonant Operation: It enhances efficiency by minimizing switching losses.
2. Frequency Foldback: Reduces the switching frequency under light load conditions, improving efficiency.
3. Integrated High-Voltage Startup Circuit: Facilitates a quick and efficient startup process.
4. Adjustable Overpower Protection: Protects the circuit from overload by adjusting the power threshold.
5. Brown-Out Detection: Ensures the power supply operates correctly by detecting input voltage drops.
6. Soft-Start Function: Gradually increases the power output during startup, reducing stress on components.
7. Low Standby Power Consumption: Designed for low energy usage during standby mode.
8. Wide Operating Range: Suitable for various applications with different input voltages.
9. Protection Features: Includes overvoltage, undervoltage, overcurrent, and thermal shutdown protections for enhanced safety and reliability.
These features make the NCP1337DR2G suitable for use in adapters, offline battery chargers, and consumer electronics where efficient power management is crucial.
Pinout
1. Pin 1 (FB - Feedback): This pin is used to receive the feedback signal from the output, which helps in regulating the output voltage.
2. Pin 2 (CS - Current Sense): It monitors the current through the power switch and is used for over-current protection.
3. Pin 3 (GND - Ground): This is the ground reference for the IC.
4. Pin 4 (DRV - Drive): It outputs the drive signal to the gate of the power MOSFET.
5. Pin 5 (VCC - Supply Voltage): This pin supplies power to the IC and is connected to the supply voltage.
6. Pin 6 (NC - No Connection): This pin is not internally connected and can be used for other purposes like routing.
7. Pin 7 (HV - High Voltage): This pin can be connected to a high voltage line for startup purposes.
8. Pin 8 (OVP - Over Voltage Protection): It is used for protecting the circuit against over-voltage conditions.
This configuration allows the NCP1337DR2G to efficiently manage power supply regulation and protection.
Manufacturer
Application
1. AC-DC Power Supplies: Utilized in designing efficient power supplies for various electronic devices.
2. Adapters and Chargers: Ideal for applications requiring compact and efficient power conversion, such as phone or laptop chargers.
3. Consumer Electronics: Used in TVs, set-top boxes, and audio equipment for power management.
4. LED Drivers: Employed in LED lighting solutions to regulate power efficiently.
5. Industrial Power Systems: Suitable for use in industrial equipment requiring stable power supply management.
The NCP1337DR2G is valued for its capability to enhance energy efficiency and reduce standby power consumption in these applications.