恭喜您提交成功
提交失敗
UC3842P
The PDIP8 plastic package contains a 1A switching controller with a maximum switching frequency of 500kHz
UC3842P
The PDIP8 plastic package contains a 1A switching controller with a maximum switching frequency of 500kHz
-
製造商零件號 # : UC3842P
-
包裝/封裝: DIP8
-
製造商: Texas Instruments
-
產品分類 : DC DC Switching Controllers
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
UC3842P 數據表
目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!
詳細說明
The UC3842P is a fixed frequency current mode PWM controller designed to operate at a switching frequency of 40 kHz. It is commonly used in offline and DC-to-DC converter applications to regulate the output voltage. This IC offers a variety of protection features such as overcurrent protection, overvoltage protection, and undervoltage lockout. The UC3842P integrates the functions of a pulse width modulator, error amplifier, voltage reference, and a high-current output driver into a single chip. It features an operating voltage range of 7V to 35V and can drive power MOSFETs or bipolar transistors. The output stage is capable of delivering up to 1A of peak current.The internal oscillator of the UC3842P can be programmed by an external resistor and capacitor to set the switching frequency. The error amplifier compares a voltage feedback signal with a reference voltage to regulate the duty cycle of the PWM signal and maintain the desired output voltage.
主要特徵
- Current Mode PWM Controller
- Operating Voltage Range of 8V to 36V
- Adjustable Frequency from 50kHz to 1MHz
- Low Start-up Current
- Output Voltage Trim Capability
- Short Circuit Protection
- Internal Soft Start
- Temperature Compensated Precision Reference
應用
- Switch mode power supplies
- Battery chargers
- LED drivers
- DC-DC converters
- Solar inverters
- Motor control systems
- Voltage regulators
- Electronic ballasts
- Audio amplifiers
- Industrial control systems
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。
| Rohs Code | No | Part Life Cycle Code | Obsolete |
| Part Package Code | DIP | Pin Count ! | 8 |
| Reach Compliance Code | not_compliant | ECCN Code | EAR99 |
| HTS Code ! | 8542.39.00.01 | Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE | Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25 V | Input Voltage-Min | 11.5 V |
| Input Voltage-Nom | 15 V | JESD-30 Code | R-PDIP-T8 |
| Length | 9.81 mm | Number of Functions | 1 |
| Number of Terminals | 8 | Operating Temperature-Max | 70 °C |
| Operating Temperature-Min | Output Current-Max | 1 A | |
| Output Voltage-Nom | 2.5 V | Package Body Material | PLASTIC/EPOXY |
| Package Code | DIP | Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR | Package Style | IN-LINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | Qualification Status ! | Not Qualified |
| Seated Height-Max | 5.08 mm | Supply Current-Max (Isup) | 25 mA |
| Surface Mount ! | NO | Switcher Configuration | SINGLE |
| Switching Frequency-Max | 500 kHz | Technology | BIPOLAR |
| Temperature Grade ! | COMMERCIAL | Terminal Form ! | THROUGH-HOLE |
| Terminal Pitch ! | 2.54 mm | Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | Width | 7.62 mm |
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 UC3842P?
The UC3842P is a fixed frequency current-mode PWM controller designed by Texas Instruments. It is used in power supply and power management applications such as offline and isolated DC-DC converters, LED drivers, and battery chargers.
How Does UC3842P Work?
The UC3842P operates by regulating the output voltage and current of a power supply through its pulse-width modulation (PWM) control. It uses a current-mode control scheme to provide stability and accurate regulation of power converters. The controller features a configurable oscillator and error amplifier for precise control of the power supply output.
How Many Pins does UC3842P have and What are the Functions of the Pinout Configuration?
The UC3842P is housed in an 8-pin DIP (Dual Inline Package) or SOIC package. The pinout configuration includes:
- VCC: Power supply pin.
- CS: Current sense input pin.
- RT/CT: Oscillator timing components pin.
- VC: Voltage control input pin.
- OUT: Output pin.
- GND: Ground pin.
What are the Pros and Cons of UC3842P?
Pros:
- Efficient Power Regulation: Provides efficient power control for various types of power supplies.
- Flexible Configuration: Offers flexibility in oscillator frequency and voltage feedback for tailored power supply designs.
- Current-Mode Control: Provides natural pulse-by-pulse current limiting and adjustable response to line and load transients.
- Overvoltage Protection: Includes features for overvoltage protection and under-voltage lockout.
- Cost-Effective: Offers cost-effective power supply solutions for a wide range of applications.
Cons:
- External Components: May require external components for specific power supply designs and additional features.
- Complexity: Requires careful consideration of feedback loop stability and parameter selection for optimal performance.
Are There Any Equivalents/Alternatives to UC3842P for Recommendation?
- The UC3843P is a similar PWM controller with enhanced features such as under-voltage lockout and a totem pole output stage.
- Alternatives to the UC3842P include the SG3524 from STMicroelectronics and the TL494 from Texas Instruments.
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
