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UCC3804DTR
+БОМUCC3804 LOW-POWER BICMOS CURRENT
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ПроизводительUnitrode
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Мфр. Часть #UCC3804DTR
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Лист данных UCC3804DTR DataSheet
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В наличии4013
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
Спецификации
| Атрибут | Ценность |
| Part Status | Active |
| Internal Switch(s) | No |
| Topology | Boost, Buck, Flyback, Forward |
| Voltage - Start Up | 12.5 V |
| Voltage - Supply (Vcc/Vdd) | 8.3V ~ 12V |
| Duty Cycle | 49% |
| Frequency - Switching | Up to 1MHz |
| Fault Protection | Current Limiting |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Mounting Type | Surface Mount |
| Base Product Number | UCC3804 |
Обзор
Description
Key features include programmable switching frequency, soft-start capability, and an integrated error amplifier for voltage regulation. The UCC3804DTR supports both voltage and current feedback, making it suitable for various applications, including point-of-load converters, battery chargers, and power supplies for processors.
Its robust design allows for seamless integration in compact layouts, and it operates efficiently across a broad range of load conditions. The device is available in a compact package, facilitating space-constrained designs. Overall, the UCC3804DTR is ideal for engineers seeking to optimize power efficiency and control in their electronic designs.
Equivalent
Features
1. Voltage Regulation: It provides precise output voltage control, maintaining stability under varying load conditions.
2. High-Speed Operation: Capable of operating at frequencies up to 1 MHz, facilitating compact designs.
3. Built-in Soft Start: Reduces inrush current during startup, enhancing system reliability.
4. Error Amplifier: Features a high-gain differential amplifier for accurate feedback control.
5. Pulse Width Modulation (PWM): Employs a current-mode PWM control scheme for optimal efficiency.
6. Current Limit: Integrated current sensing helps protect against overload conditions.
7. Thermal Shutdown: Provides protection against overheating.
8. Wide Input Voltage Range: Suitable for a variety of applications with input voltages from 4.5V to 40V.
9. Low Standby Power: Designed for energy efficiency, reducing power consumption in idle states.
These features make the UCC3804DTR ideal for applications in DC-DC converters, power supplies, and battery chargers.
Pinout
1. VDD (Pins 1, 15): Supply voltage.
2. GND (Pins 2, 14): Ground connection.
3. COMP (Pin 3): Compensation network connection for stability.
4. CSN (Pin 4): Current sense negative input.
5. CSP (Pin 5): Current sense positive input.
6. RAMP (Pin 6): Ramp voltage input for PWM control.
7. RT (Pin 7): Timing resistor for frequency setting.
8. SS (Pin 8): Soft-start pin to control start-up behavior.
9. PWM (Pin 9): PWM output signal to control the switching device.
10. SYNC (Pin 10): Synchronization input/output.
The remaining pins are used for additional feedback, protection, and control functionalities. The UCC3804DTR is suitable for applications requiring high efficiency and precise regulation in power conversion systems.
Manufacturer
Application
1. DC-DC Converters: Used for step-down (buck) and step-up (boost) converters.
2. Power Management Systems: Ideal for efficient energy conversion in battery-operated devices.
3. Telecommunications: Supports power supplies in telecom equipment.
4. Industrial Equipment: Employed in automation and control systems.
5. Consumer Electronics: Used in products like TVs and computers for efficient power regulation.
Overall, it is designed to enhance efficiency, reduce power loss, and improve thermal performance in power supply designs.