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TPS40200DR
+Lista de MateriaisIC REG CTRLR BUCK 8SOIC
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FabricanteTexas Instruments
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Peça do Fabricante #TPS40200DR
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Pacote SOIC-8
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| NumberofOutputs | 1 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 4.5V ~ 52V |
| Frequency-Switching | 35kHz ~ 500kHz |
| DutyCycle(Max) | 95% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Frequency Control, Soft Start |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Visão Geral
Description
Key features include programmable operating frequency, soft-start capability, overcurrent protection, and thermal shutdown. The controller supports a wide range of output voltages, which can be adjusted via external resistors, making it adaptable to various power supply designs. The TPS40200DR operates in a voltage-mode control scheme, ensuring stability and precise output regulation.
Common applications include industrial and automotive power systems, communications equipment, and consumer electronics. Its small footprint and efficient performance make it a popular choice for engineers designing compact and reliable power solutions.
Equivalent
1. LM3478 from Texas Instruments
2. MAX1771 from Maxim Integrated (now part of Analog Devices)
3. LT3757 from Analog Devices
4. NCP1250 from ON Semiconductor
These alternatives provide similar functionalities for non-synchronous boost or SEPIC converter applications. It's essential to verify exact specifications and application requirements before selecting a replacement.
Features
Key features include programmable operating frequency, which can be set between 35kHz and 500kHz, allowing optimization for efficiency or component size. It also offers a programmable soft-start function to control inrush current during startup, and a built-in short-circuit protection mechanism to prevent damage due to overcurrent conditions. The TPS40200DR includes a shutdown pin to reduce current consumption during idle periods and ensures thermal performance with its thermal shutdown feature. This controller is typically used in industrial, automotive, and consumer electronics applications, offering flexibility and reliability in power management solutions.
Pinout
1. Pin 1 (BOOT): Bootstrap pin for the high-side driver.
2. Pin 2 (VDD): Input supply voltage for the internal circuitry.
3. Pin 3 (RT): Timing resistor pin to set the switching frequency.
4. Pin 4 (FB): Feedback pin for output voltage regulation.
5. Pin 5 (COMP): Compensation pin for the error amplifier.
6. Pin 6 (GND): Ground reference.
7. Pin 7 (DRV): Drive output for the external MOSFET gate.
8. Pin 8 (SS/SD): Soft-start and shutdown control pin.
The TPS40200DR is a versatile controller used primarily in non-synchronous boost converter applications, providing flexibility in designing power supply solutions.