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LM5140QRWGRQ1
+Lista de MateriaisDUAL SYNCHRONOUS BUCK CONTROLLER
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FabricanteTexas Instruments
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Peça do Fabricante #LM5140QRWGRQ1
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Ficha Técnica LM5140QRWGRQ1 DataSheet
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Especificações
| Atributo | Valor |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 2 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 3.8V ~ 65V |
| Frequency - Switching | 440kHz, 2.2MHz |
| Synchronous Rectifier | Yes |
| Clock Sync | Yes |
| Control Features | Current Limit, Enable, Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount, Wettable Flank |
| Package / Case | 40-VFQFN Exposed Pad |
| Supplier Device Package | 40-VQFNP (6x6) |
| Base Product Number | LM5140 |
| Grade | Automotive |
| Qualification | AEC-Q100 |
Visão Geral
Description
Key features include a flexible output voltage range, low quiescent current, and advanced protection mechanisms such as overcurrent protection, thermal shutdown, and under-voltage lockout. The LM5140QRWGRQ1 supports multiple operating modes, including pulse-width modulation (PWM) and pulse-frequency modulation (PFM), allowing for optimized efficiency across different load conditions.
Designed for high reliability, it is qualified for automotive applications (AEC-Q100) and is ideal for powering microcontrollers, sensors, and other automotive systems. Its integration of features and robustness makes it a suitable choice for modern automotive power management solutions.
Equivalent
Features
1. Input Voltage Range: Supports input voltages from 4.5V to 60V, making it suitable for various automotive applications.
2. Output Current: Capable of driving high output currents, ideal for demanding load requirements.
3. Integrated Gate Drivers: Features high-efficiency gate drivers for N-channel MOSFETs, enhancing performance and reducing component count.
4. Adaptive Phase Control: Optimizes efficiency and transient response by adjusting the number of active phases based on load conditions.
5. Programmable Switching Frequency: Allows for frequency settings up to 1 MHz, facilitating design flexibility.
6. Enhanced Protection Features: Includes over-voltage, under-voltage, and over-temperature protection mechanisms for robust operation.
7. Low Quiescent Current: Ensures energy efficiency, particularly beneficial in low-power states.
This device is ideal for applications such as battery management systems, power supplies, and automotive infotainment systems.
Pinout
Key functions include:
- PWM Control: It utilizes peak current mode control for regulating output voltage.
- Power Good Indicator: Monitors output voltage and signals if it is within the specified range.
- Enable Function: Allows for external control of the power supply operation.
- Compensation Network: Built-in compensation for stability across various applications.
- Fault Protection Features: Includes under-voltage, over-voltage, and over-current protection.
The device supports a wide input voltage range, making it suitable for various automotive and industrial applications. It provides flexibility in design while ensuring robust performance and reliability.