KA3844B
PDIP8, 1A, Current-mode, Switching Controller, 500kHz Switching Freq-MaxKA3844B
PDIP8, 1A, Current-mode, Switching Controller, 500kHz Switching Freq-Max
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服務與包裝
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KA3844B 數據表
價格 (USD)
數量 | 單價 | 總價 |
---|---|---|
1 | $0.770 | $0.77 |
200 | $0.299 | $59.80 |
500 | $0.288 | $144.00 |
1000 | $0.283 | $283.00 |
這些價格會受到市場波動的影響,需要提交報價才能取得最新價格。
詳細說明
Relevant industries will benefit from the technical advantages offered by the KA3844B, such as its high level of output current, wide input voltage range, and protective features. Its compatibility with various applications, combined with its ease of integration, positions it as a valuable component for enhancing the functionality and efficiency of DC-DC converters and switching regulators. The KA3844B represents a reliable and versatile solution for achieving precise voltage and current control in electronic circuits
主要特徵
- High-Speed Operation up to 100kHz
- Safe Operating Area Diagram
- Regulated Voltage Output: 5V ±5%
- Soft-Start Function for In-Rush Current Limiting
- Over-Temperature Shut-Down with Hysteresis
- Precision Voltage Reference: 2.5V ±1%
應用
- Power Supplies
- Lighting Systems
- DC Converters
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Manufacturer | onsemi | Product Category ! | AC DC Converters, Offline Switchers |
Series | - | Packaging ! | Tube |
Unit-Weight | 8-DIP (0.300", 7.62mm) | Mounting-Style | 8-DIP |
Package-Case | - | Operating-Temperature | 1 Output |
Mounting-Type | - | Supplier-Device-Package | - |
Watt | 16V | Number-of-Outputs | Up to 500kHz |
Output-Isolation | - | Internal-Switch-s | Frequency Control |
Voltage-Breakdown | 17 mA | Topology | 35 ns |
Voltage-Start-Up | 45 ns |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is KA3844B?
The KA3844B is a pulse width modulation (PWM) control circuit designed for high-performance switching power supplies and other applications that require high frequency pulse width modulation.
How Does KA3844B Work?
The KA3844B operates by providing control for the turn-on and turn-off times of the power switch in a PWM circuit. It regulates the duty cycle of the output waveform, which is used to control the power delivered to the load. This allows for efficient power conversion and regulation.
How Many Pins does KA3844B have and What are the Functions of the Pinout Configuration?
The KA3844B is available in a 16-pin dual in-line package (DIP). The pinout configuration includes:
- VI: Voltage input pin.
- GND: Ground pin.
- COMP: Error amplifier output pin.
- Ramp: Ramp input pin for the on-time control.
- CT: Timing capacitor pin for frequency control.
- RT: Timing resistor pin for frequency control.
- OUT: Output pin.
- SD: Shutdown pin.
What are the Pros and Cons of KA3844B?
Pros:
- High-Performance: Suitable for high-frequency switching power supply applications.
- Efficient Power Conversion: Enables efficient regulation of power delivered to the load.
- Wide Voltage Range: Supports a wide input voltage range for versatility.
Cons:
- External Components: May require additional external components for certain applications.
- Complexity: Requires careful design considerations for noise, stability, and output regulation.
Are There Any Equivalents/Alternatives to KA3844B for Recommendation?
Equivalents to the KA3844B include the SG3524 from STMicroelectronics and the UC3844 from Texas Instruments. Alternatives with similar functions include the TL494 from Texas Instruments and the IRS2153D from Infineon Technologies.
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