NCP1251ASN65T1G

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NCP1251ASN65T1G

IC OFFLINE SWITCH FLYBACK 6TSOP

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Spezifikationen

Part Status Obsolete
Base Product Number NCP1251
Output Isolation Isolated
Internal Switch(s) No
Topology Flyback
Voltage - Start Up 18 V
Voltage - Supply (Vcc/Vdd) 8.8V ~ 28V
Duty Cycle 80%
Frequency - Switching 65kHz
Fault Protection Over Power, Over Voltage, Short Circuit
Operating Temperature -40°C ~ 125°C (TJ)
Package SOT-23-6 Thin, TSOT-23-6
Supplier Device Package 6-TSOP
Mounting Type Surface Mount
Packaging Cut Tape (CT), Tape & Reel (TR)

Übersicht

Description

The NCP1251ASN65T1G is a high-performance, off-line, and isolated power supply controller designed for various applications, including adapters, chargers, and LED drivers. Manufactured by ON Semiconductor, it features a primary-side regulation scheme that simplifies design and minimizes component count.
Key features include a wide input voltage range, low startup current, and built-in over-voltage, over-current, and thermal protection, ensuring reliability and safety in operation. The controller utilizes a quasi-resonant switch mode to improve efficiency, particularly at low loads, making it suitable for energy-efficient designs.
The NCP1251ASN65T1G also supports various topologies, including flyback, and is optimized for use in low to medium power applications, typically up to 65 watts. Its compact size and robust performance make it a popular choice for engineers looking to design efficient power supplies with reduced footprint and cost.

Features

The NCP1251ASN65T1G is a power switch designed for high-efficiency, low-power applications such as power supplies and adapters. Key features include:
1. Integrated PWM Controller: Provides constant voltage and constant current regulation, enhancing efficiency.
2. High Voltage Capability: Operates with input voltages up to 65V, making it suitable for a wide range of applications.
3. Low Standby Power: Designed to minimize power consumption during idle states, contributing to energy efficiency.
4. Built-in Soft Start: Reduces inrush current and improves system stability during startup.
5. Overcurrent Protection: Features a current limit function to protect against overload conditions.
6. Thermal Shutdown: Automatically disables the device if it overheats, ensuring safe operation.
7. Compact Size: Offered in an SO-8 package, allowing for space-constrained designs.
These features make the NCP1251ASN65T1G suitable for applications in consumer electronics, industrial power supplies, and other efficient power management systems.

Package

The NCP1251ASN65T1G is housed in a SOIC-8 (Small Outline Integrated Circuit) package type. This package typically features an 8-pin configuration and is designed for surface mounting applications.

Pinout

The NCP1251ASN65T1G is a monolithic power supply controller designed for use in off-line and DC-DC converter applications. It features a total of 8 pins.
The pin functions are as follows:
1. VDD: Supply voltage input.
2. GND: Ground reference.
3. VCC: Voltage regulator output.
4. CSN: Current sense input.
5. RAMP: Voltage ramp input for controlling switch turn-off.
6. COMP: Compensation network connection for feedback control.
7. SW: Switch node for connecting to the transformer or inductor.
8. FB: Feedback input for voltage regulation.
This device incorporates features for improved efficiency and performance in power supply applications.

Manufacturer

The NCP1251ASN65T1G is manufactured by ON Semiconductor. ON Semiconductor is a global semiconductor company that designs and manufactures a wide range of semiconductor solutions. Their products are used in various applications, including automotive, industrial, consumer electronics, and communications. The company specializes in power management, analog, and mixed-signal devices, and is known for its focus on energy efficiency and sustainability in its product offerings. ON Semiconductor is headquartered in Phoenix, Arizona, and serves a broad customer base across different industries worldwide.

Application

The NCP1251ASN65T1G is a highly integrated power supply controller primarily used in offline flyback converters. Its application areas include AC-DC power adapters, LED drivers, battery chargers, and appliances requiring efficient, isolated power conversion. It is suitable for low to medium power applications, providing features like low standby power consumption and high efficiency, making it ideal for consumer electronics and industrial power supplies.

Equivalent

The NCP1251ASN65T1G is a primary-side control switch-mode power supply regulator. Equivalent products include:
1. LM2596 - A step-down voltage regulator.
2. TL494 - PWM control IC for switching power supplies.
3. UC3842 - Current mode PWM controller.
4. SG6843 - Flyback converter controller.
Always verify specifications and applications for compatibility.

Versand

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Versandgebührenreferenz (DHL/FedEx):

DHL: Versandkosten reichen von $25-$45 (0.5kg), mit einer geschätzten Lieferzeit von 2-5 Werktagen.

von FedEx: Versandkosten reichen von $25-$40 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.

UPS: Versandkosten reichen von $25-$45 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.

TNT: Versandkosten reichen von $25-$65 (0.5kg), mit einer geschätzten Lieferzeit von 3-7 Werktagen.

EMS: Versandkosten reichen von $30-$50 (0.5kg), mit einer geschätzten Lieferzeit von 7-15 Werktagen.

Registrierte Luftpost: Versandkosten sind $ 2- $ 4 (0,1 kg), mit einer geschätzten Lieferzeit von 5-20 Werktagen.

Zahlungen

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