Imagens apenas para referência
TL2844BDR-8
+Lista de MateriaisIC REG CTRLR BST FLYBK PWM 8SOIC
-
FabricanteTexas Instruments
-
Peça do Fabricante #TL2844BDR-8
-
Ficha Técnica TL2844BDR-8 DataSheet
-
Em Estoque3396
365 Garantia de Qualidade em 1 dia
7*24 Garantia de serviço em 24 horas
90-Garantia de pós-venda em 1 dia
Garantia de Produto Genuíno
Especificações
| Atributo | Valor |
| Part Status | Active |
| Base Product Number | TL2844 |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, Forward |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 30V |
| Frequency - Switching | Up to 500kHz |
| Duty Cycle (Max) | 48% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Visão Geral
Description
Key features of the TL2844BDR-8 include an adjustable oscillator frequency, which provides flexibility in design, an under-voltage lockout (UVLO) feature for improved reliability, and short-circuit protection to prevent damage under fault conditions. The controller also includes a precision reference voltage, which ensures accurate output regulation.
The device is commonly used in applications such as power adapters, battery chargers, and other power supply systems that require efficient energy conversion. Its small package and robust design make it ideal for compact and high-performance applications. The TL2844BDR-8 is particularly valued for its balance of performance, reliability, and cost-effectiveness in power management circuits.
Equivalent
Features
1. Low Dropout Voltage: This regulator provides efficient performance with minimal voltage drop across the device, maximizing power efficiency.
2. Fixed Voltage Output: The device delivers a consistent and stable output voltage, suitable for sensitive electronics.
3. Thermal Protection: It includes built-in thermal shutdown features to prevent overheating, enhancing device reliability.
4. Short-Circuit Protection: The regulator is equipped with short-circuit protection to prevent damage in case of output overload.
5. High PSRR: The device offers a high Power Supply Rejection Ratio, reducing the impact of supply noise on the output voltage.
6. Compact Package: The TL2844BDR-8 is available in a small surface-mount package, making it ideal for space-constrained applications.
7. Low Quiescent Current: It features low quiescent current operation, making it suitable for battery-powered applications.
These features make the TL2844BDR-8 ideal for use in various electronic devices where efficient and reliable voltage regulation is crucial.
Pinout
The function of each pin is generally as follows:
1. Compensation (COMP): Connects to the output of the error amplifier for loop compensation.
2. Voltage Feedback (VFB): Receives a feedback voltage for output regulation.
3. Current Sense (ISENSE): Monitors the switch current and helps in current limiting.
4. RT/CT: Sets the oscillator frequency with an external resistor and capacitor.
5. Ground (GND): Common ground reference for the IC.
6. Output (OUT): Drives the gate of the power MOSFET or transistor.
7. VCC: Supply voltage input for the IC.
8. VREF: Provides a stable reference voltage output.
These pins enable the TL2844BDR-8 to effectively manage PWM control, providing efficient power regulation and management for devices like power adapters and other power supply systems.
Manufacturer
Application
1. DC-DC Converters: Used in step-down (buck) or step-up (boost) converter circuits for power regulation.
2. Switching Power Supplies: Ideal for use in efficient switch-mode power supply designs.
3. Battery Chargers: Facilitates efficient charging with controlled voltage and current.
4. LED Drivers: Supports constant current supply for LED applications.
5. Consumer Electronics: Powers and regulates components in devices like televisions and personal computers.
6. Industrial Control Systems: Used in motor drives and control units for maintaining power efficiency.
Its versatility in providing precise power control makes it suitable for a wide range of applications requiring efficient energy management.