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TPS40140RHHR
+Lista de MateriaisIC REG CTRLR BUCK 36QFN
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FabricanteTexas Instruments
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Peça do Fabricante #TPS40140RHHR
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Pacote VQFN-36
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Em Estoque2077
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Not For New Designs |
| Output Type | Transistor Driver |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Number of Outputs | 2 |
| Output Phases | 2 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 15V |
| Frequency - Switching | 150kHz ~ 1MHz |
| Duty Cycle(Max) | 87.5% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Control Features | Current Limit, Frequency Control, Phase Control, Power Good, Tracking |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features of the TPS40140RHHR include high-speed gate drivers that optimize the performance of external MOSFETs, programmable voltage regulation with adjustable switching frequency, and comprehensive protection mechanisms like over-current, over-voltage, and thermal protection. The controller also supports phase shedding to improve efficiency at lower loads and can be configured for interleaved operation to reduce input and output ripple, enhancing overall system performance.
Its compact size and robust feature set make the TPS40140RHHR a versatile choice for engineers looking to implement efficient and reliable power conversion solutions in space-constrained environments.
Equivalent
1. LTC3829 from Analog Devices - a dual-output synchronous step-down controller.
2. ISL8117 from Renesas - a single-phase synchronous step-down PWM controller.
3. MAX15062 from Maxim Integrated - a high-voltage, synchronous buck converter.
4. LM5145 from Texas Instruments - a synchronous buck controller designed for high power density applications.
Ensure compatibility based on specific application requirements before substituting.
Features
1. Multi-Phase Capability: Supports up to two phases per controller for enhanced current capacity and heat distribution.
2. Input Voltage Range: Operates over a wide input voltage range, typically from 8 V to 40 V.
3. Output Voltage Selection: Allows for adjustable output voltage, providing flexibility in application design.
4. Programmable Switching Frequency: Offers a programmable frequency range from 250 kHz to 1 MHz, enabling optimization for efficiency or size.
5. Voltage and Current Monitoring: Includes built-in voltage and current monitoring features for enhanced system reliability.
6. Synchronous Rectification: Improves efficiency by using synchronous rectification.
7. Soft-Start and Sequencing: Features soft-start and power-up sequencing for controlled startup behavior.
8. Fault Protection: Includes protection mechanisms such as overcurrent, overvoltage, and thermal shutdown.
9. Synchronization: Capable of synchronizing with an external clock for interleaved operation in multiphase systems.
These features make the TPS40140RHHR suitable for high-current applications like servers, telecom equipment, and networking hardware.
Pinout
Key functions of the TPS40140RHHR include:
1. Dual Output Control: It can manage two independent synchronous buck converters, making it suitable for applications requiring multiple voltage rails.
2. Voltage Regulation: It provides precise voltage regulation, supporting output voltages as low as 0.7V.
3. Programmable Switching Frequency: The controller allows users to set the switching frequency up to 1 MHz for optimization of size and efficiency.
4. Synchronization: Capable of synchronization to an external clock for improved noise performance.
5. Fast Transient Response: Utilizes predictive gate drive™ technology for fast transient response.
6. Protection Features: Includes overcurrent protection, undervoltage lockout, and thermal shutdown to enhance system reliability.
7. Soft-start and Tracking: Features programmable soft-start and tracking for controlled startup and sequencing.
The TPS40140RHHR is ideal for use in applications such as telecommunications, networking, and distributed power systems, where space, efficiency, and reliability are crucial.