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UC2842AD8TR
+BOMIC PWM BOOST FLYBACK CM 8SOIC
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #UC2842AD8TR
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Bảng dữ liệu UC2842AD8TR DataSheet
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Series | UCx84xA |
| Part Status | Active |
| Applications | PWM Controller |
| Voltage - Input | -0.3V ~ 6.3V |
| Voltage - Supply | 10V ~ 30V |
| Supply Current | 11 mA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | UC2842 |
Tổng quan
Description
This device integrates several protection features, such as over-current protection, under-voltage lockout, and thermal shutdown, ensuring safe operation. The UC2842AD8TR also provides a simple control loop compensation, allowing designers to create stable power supplies easily.
With a high-speed response and low-power consumption, it is widely used in applications like adapters, battery chargers, and industrial power supplies. Its compact 8-pin package enhances design flexibility and space efficiency in PCB layouts. Overall, the UC2842AD8TR is well-suited for designers seeking robust and efficient solutions in power management.
Equivalent
Features
1. Wide Input Voltage Range: Operates from 10V to 30V, making it suitable for various power supply designs.
2. High Switching Frequency: Supports frequencies up to 500 kHz, allowing for smaller inductors and capacitors, thus optimizing size and efficiency.
3. Current Mode Control: Provides superior line and load regulation, enhancing system stability and response to load changes.
4. Built-in Voltage Reference: Features a precise 5V reference for improved accuracy in feedback control.
5. Soft Start Function: Reduces inrush current and overshoot during startup, protecting the circuit components.
6. Integrated Protection Features: Includes overcurrent protection and thermal shutdown to enhance reliability.
7. DIP-8 Package: Compact form factor for easy integration into PCB designs.
These features make the UC2842AD8TR ideal for designing efficient power supplies, including switch-mode power supplies (SMPS) and converters.
Pinout
Pin Count: 8 pins
Pin Functions:
1. Pin 1 (COMP): Compensation node for error amplifier.
2. Pin 2 (VFB): Inverting input for the error amplifier. Used for voltage feedback.
3. Pin 3 (IAMP): Current sense input, used for current limiting.
4. Pin 4 (RAMP): Ramp input for pulse-width modulation (PWM) control.
5. Pin 5 (VREF): Reference voltage output (typically 5V).
6. Pin 6 (GND): Ground reference.
7. Pin 7 (OUT): Output driver for controlling the power switch.
8. Pin 8 (VCC): Supply voltage input for the IC.
The UC2842AD8TR operates in continuous conduction mode, providing features like current limiting, voltage regulation, and soft start for efficient power supply management.
Manufacturer
Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in semiconductor technology and has a strong portfolio of products that enable efficient energy management and signal processing. The UC2842 is a part of TI's family of integrated circuits designed for power supply control, specifically in applications like switch-mode power supplies (SMPS).
TI is recognized for its commitment to advancing technology and providing robust support for engineers and developers through design tools, technical resources, and a collaborative community. The company's extensive product offering and engineering expertise make it a key player in the electronics industry.