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UA78HGASC
The UA78HGASC is a voltage regulator chip manufactured by Texas InstrumentsUA78HGASC
The UA78HGASC is a voltage regulator chip manufactured by Texas Instruments
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UA78HGASC DataSheet
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Details
UA78HGASC is a specific model of voltage regulator manufactured by Texas Instruments. This device is designed to provide a constant output voltage of 5 volts with a maximum output current of 500mA. It features a high efficiency and low dropout voltage, making it ideal for applications where a stable power supply is required.The UA78HGASC is housed in a TO-220 package, which allows for easy mounting on a PCB. It operates over a wide input voltage range of 7V to 18V, making it suitable for a variety of power supply designs. The device also includes built-in thermal shutdown and current limiting protection features to ensure safe operation under adverse conditions.
Key Features
- High voltage input range up to 40V
- Output voltage range from 1.25V to 37V
- High efficiency up to 85%
- Low dropout voltage
- Adjustable output voltage with external resistors
- Overcurrent and overtemperature protection
Application
- Power supplies
- Battery chargers
- Industrial control systems
- Instrumentation
- Automotive applications
- Telecommunication equipment
- Consumer electronics
- Medical devices
- Robotics
- Sensor interfaces
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Rohs Code | No | Part Life Cycle Code | Obsolete |
| Reach Compliance Code | ECCN Code | EAR99 | |
| HTS Code ! | 8542.39.00.01 | Adjustability | ADJUSTABLE |
| JESD-30 Code | O-MBCY-W4 | JESD-609 Code | e0 |
| Number of Outputs | 1 | Number of Terminals | 4 |
| Operating Temperature TJ-Max | 125 °C | Operating Temperature TJ-Min | |
| Output Voltage1-Max | 24 V | Output Voltage1-Min | 5 V |
| Package Body Material | METAL | Package Equivalence Code | CAN4/5,.45FL |
| Package Shape | ROUND | Package Style | CYLINDRICAL |
| Qualification Status ! | Not Qualified | Technology | BIPOLAR |
| Terminal Finish | Tin/Lead (Sn/Pb) | Terminal Form ! | WIRE |
| Terminal Position | BOTTOM |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is UA78HGASC?
The UA78HGASC is a fixed positive voltage regulator integrated circuit (IC) designed by Texas Instruments. It is part of the UA78H series of three-terminal regulators and is ideal for applications requiring a reliable, stable voltage supply, such as power supplies, industrial control systems, and automotive electronics.
How Does UA78HGASC Work?
The UA78HGASC works by regulating an input voltage to a specified output voltage level with low dropout voltage and excellent line and load regulation. It provides a fixed output of +5V, making it suitable for powering digital logic circuits, microcontrollers, and other electronic components.
How Many Pins does UA78HGASC have and What are the Functions of the Pinout Configuration?
The UA78HGASC is housed in a TO-220 package. The pinout configuration includes:
- Input (VIN): Input voltage pin.
- Common (COM): Common ground pin.
- Output (VOUT): Regulated output voltage pin.
What are the Pros and Cons of UA78HGASC?
Pros:
- Stability: Provides stable output voltage for consistent system operation.
- Reliability: Offers robust voltage regulation for long-term performance.
- Thermal Protection: Includes internal thermal shutdown and current limit protection.
- Simple Design: Requires minimal external components for operation.
- Wide Operating Temperature Range: Suitable for harsh environmental conditions.
Cons:
- Fixed Output Voltage: Limited to a specific output voltage level, not adjustable.
- Heat Dissipation: May require a heat sink for high power dissipation applications.
- Dropout Voltage: May not be suitable for applications requiring low dropout voltage.
Are There Any Equivalents/Alternatives to UA78HGASC for Recommendation?
- The LM7805 from Texas Instruments is a similar fixed voltage regulator with a +5V output.
- Alternatives to the UA78HGASC include the L78S05CV from STMicroelectronics and the KA7805 from Fairchild Semiconductor.
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