恭喜您提交成功
提交失敗
UC2844D
Current Mode PWM Controller 200mA 500kHz 14-Pin SOIC Tube
UC2844D
Current Mode PWM Controller 200mA 500kHz 14-Pin SOIC Tube
-
製造商零件號 # : UC2844D
-
包裝/封裝: SOIC-14
-
製造商: Texas Instruments
-
產品分類 : Power Supply Controllers, Monitors
品質保證
品質保證
從我們的供應鍊網路採購的所有零件都經過嚴格的進貨檢驗流程。 這種細緻的檢查可確保客戶收到的零件是正品並符合要求的標準。 此外，我們還保存這些檢查的詳細記錄，以確保整個供應鏈的透明度和可追溯性。
認證
我們已成功獲得各項認證標準，並建立了自己的專業檢測實驗室。 這確保了我們向客戶提供的每件產品都符合最高的品質標準。 我們遵守嚴格的測試協議，以保持我們產品的一致性和準確性。 為了確保我們的產品是原裝正品，我們還與信譽良好的第三方檢測機構合作進行嚴格的品質測試。 我們對品質的承諾延伸到滿足行業、法律、監管和 ISO 9001:2015 的要求。
運輸與付款
運輸與付款
關於運送
我們通常會在幾個工作日內通過可靠的運輸公司（例如 FedEx、SF、UPS 或 DHL）運送訂單。 我們還支持其他運輸方式。 如果您想詢問具體的運輸細節或費用，請隨時與我們聯繫。
關於付款
我們接受多種支付方式，包括VISA、MasterCard、銀聯、西聯、PayPal等渠道。
如果您有特定的付款方式或想詢問費率和其他詳細信息，請隨時與我們聯繫。
電匯
Paypal
信用卡
西聯匯款
速匯金
服務與包裝
服務與包裝
About After Sales Service
All Parts Extended Quality Guarantee
自發貨之日起 90 天內發起申請。
與我們的工作人員確認退貨或換貨。
保持貨物收到時的原始狀態。
最後請注意，退貨或換貨的資格取決於對退貨商品實際狀況的評估。 在完成退貨或換貨流程之前，我們將評估收到的貨物。 如果您對退貨或換貨有任何疑問或需要進一步幫助，請隨時通過以下方式聯絡我們： [email protected]
關於包裝
在包裝方面，我們的產品均精心包裝在防靜電袋中，以提供ESD防靜電保護。 外包裝堅固耐用且閉合牢固。 我們支持各種包裝方法，例如捲帶式、切帶式、管式或託盤式。
例子
捲帶式
剪膠帶
管或託盤
UC2844D 數據表
價格 (USD)
| 數量 | 單價 | 總價 |
|---|---|---|
| 1 | $4.128 | $4.13 |
| 200 | $1.597 | $319.40 |
| 500 | $1.542 | $771.00 |
| 1000 | $1.514 | $1,514.00 |
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
The UC2844D is a cutting-edge current mode PWM controller specially designed for power supply and battery charger applications. With its high-performance features, including a programmable oscillator frequency range, it offers flexibility in designing various power supply topologies. The controller's high-current totem-pole output stage with peak current drive capability allows for direct power MOSFETs or IGBTs driving, making it ideal for medium to high power applications. Moreover, the UC2844D comes equipped with built-in over-voltage protection, under-voltage lockout, and current limiting functions to ensure system reliability and protection
主要特徵
- Synchronous rectifier driver circuits
- Soft-start and foldback current limiting
- Internally trimmed bandgap reference
- Programmable undervoltage lockout
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。
| Topology | Boost, Buck, Flyback, Forward | Control mode | Peak current mode |
| Duty cycle (max) (%) | 50 | Switching frequency (max) (kHz) | 500 |
| Features | Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology | UVLO thresholds on/off (V) | 16/10 |
| Operating temperature range (°C) | -40 to 85 | Rating | Catalog |
| Gate drive (typ) (A) | 1 | Vin (max) (V) | 28 |
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 UC2844D?
The UC2844D is a high-performance current-mode PWM controller designed by Texas Instruments. It is commonly used in power supply applications to regulate voltage and control the output current, making it suitable for various power management systems.
How Does UC2844D Work?
The UC2844D operates as a current-mode PWM controller, providing precise control over the power supply output. It compares a feedback signal with a reference voltage to adjust the duty cycle of the PWM signal, regulating the output voltage. The device features adjustable frequency and maximum duty cycle settings for flexibility in power supply designs.
How Many Pins does UC2844D have and What are the Functions of the Pinout Configuration?
The UC2844D is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:
- VCC: Supply voltage pin.
- CS: Current sense input.
- GND: Ground pin.
- RT/CT: Timing resistor/capacitor pin.
- COMP: Compensation pin for loop stability.
- SS/TR: Soft-start/tracking pin.
- OUT: PWM output pin.
- FB: Feedback pin for regulation.
What are the Pros and Cons of UC2844D?
Pros:
- Current-Mode Control: Provides inherent current limiting and ease of loop compensation.
- Adjustable Parameters: Offers flexibility in frequency and duty cycle control.
- Protection Features: Includes overcurrent protection and soft-start function for enhanced reliability.
- Efficient Power Management: Enables efficient power supply designs with high accuracy.
- Compact Package: The 8-pin SOIC package is compact and suitable for space-constrained applications.
Cons:
- External Components: May require external components for specific application requirements.
- Complexity: Requires understanding of power supply design principles for optimal performance.
Are There Any Equivalents/Alternatives to UC2844D for Recommendation?
- The UC3844 from Texas Instruments is a similar current-mode PWM controller with extended features.
- Alternatives to the UC2844D include the TL494 from Texas Instruments and the SG3524 from STMicroelectronics.
推薦零件
-
![UC3717AN]()
UC3717AN
$4.869 Half Bridge Gate Drive ICs ROHS for 4.75V~5.25V PDIP-16
製造商: Texas Instruments 包裝/箱: PDIP-16
5,452 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UC3525ADW]()
3,482 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UC3825DW]()
6,200 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UC2825DW]()
7,273 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UCC3895DW]()
Compact SOIC package makes it ideal for space-constrained applications such as LED drivers and DC/DC converters
製造商: Texas Instruments 包裝/箱: SOIC (DW)-20
6,130 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UC3706N]()
UC3706N
$6.089 Dual-channel gate driver integrated circuit in DIP16 package, capable of driving up to 1.5A current with voltage input range of 5 to 40VDC
製造商: Texas Instruments 包裝/箱: PDIP (N)-16
6,840 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UC3717AQ]()
Device used to control and drive stepper motors in various systems
製造商: Texas Instruments 包裝/箱: PLCC-20
5,435 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UCD9080]()
7,480 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UCC28C44]()
7,407 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UCC28C45DGKR]()
Current Mode PWM Controller 18V 200mA 1000kHz 8-Pin VSSOP T/R
製造商: Texas Instruments 包裝/箱: VSSOP-8
5,875 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UC28025DW]()
6,622 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UC2845AQD8R]()
8,784 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UCC27324DR]()
7,328 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UCC27211ADRMR]()
8-V under voltage lockout and negative voltage handling
製造商: Texas Instruments 包裝/箱: VSON-8
6,720 有存貨
貨物週期: 3~7 天
最小訂購量為 1
-
![UCC27712DR]()
6,668 有存貨
貨物週期: 3~7 天
最小訂購量為 1
