Overview
The L7815ABV is a three-terminal positive voltage regulator from STMicroelectronics, part of the L78 series. This device is designed to provide a fixed output voltage of 15V and is available in the TO-220 package. It is known for its high current capability, thermal overload protection, and short circuit protection, making it a reliable choice for various electronic applications. The L7815ABV is suitable for providing local on-card regulation, eliminating the issues associated with single point regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 15 | V |
| Output Configuration | Positive | |
| Number of Outputs | 1 | |
| Supply Voltage (VI) | 35 | V |
| Output Current (IO) | Up to 1.5 A | A |
| Package | TO-220 | |
| Thermal Resistance Junction-Case (RthJC) | 5 | °C/W |
| Thermal Resistance Junction-Ambient (RthJA) | 50 | °C/W |
| Operating Junction Temperature Range | -40 to 125 | °C |
| Output Voltage Tolerance | 2% (A version) | |
| Dropout Voltage (Vd) | 2 V | V |
| Short Circuit Current (Isc) | 0.2 A | A |
| Short Circuit Peak Current (Iscp) | 2.2 A | A |
Key Features
- High Current Capability: The L7815ABV can deliver up to 1.5 A of output current, making it suitable for a wide range of applications.
- Thermal Overload Protection: The device includes internal thermal shut-down to prevent overheating.
- Short Circuit Protection: It features short circuit current limiting and safe area protection, ensuring the device remains functional under adverse conditions.
- Output Transition SOA Protection: This protects the device from output voltage transitions that could cause damage.
- Low Dropout Voltage: The dropout voltage is 2 V, which is relatively low and efficient for many applications.
- High Ripple Rejection: The device offers high ripple rejection, ensuring a stable output voltage even with noisy input.
- Adjustable Voltage Capability: Although primarily designed as a fixed voltage regulator, it can be used with external components to obtain adjustable voltage and currents.
Applications
- Local On-Card Regulation: The L7815ABV is useful for providing local regulation on PCBs, eliminating distribution problems associated with single point regulation.
- Power Supplies: It is commonly used in power supply units where a stable and regulated output voltage is required.
- Industrial Control Systems: The device's robust protection features make it suitable for use in industrial control systems.
- Consumer Electronics: It can be used in various consumer electronic devices that require a stable and regulated voltage supply.
- Automotive Systems: The L7815ABV can be used in automotive systems where reliability and thermal stability are crucial.
Q & A
- What is the output voltage of the L7815ABV?
The output voltage of the L7815ABV is 15V.
- What is the maximum output current of the L7815ABV?
The maximum output current is up to 1.5 A.
- What type of package is the L7815ABV available in?
The L7815ABV is available in the TO-220 package.
- Does the L7815ABV have thermal overload protection?
Yes, it includes internal thermal shut-down to prevent overheating.
- What is the dropout voltage of the L7815ABV?
The dropout voltage is 2 V.
- Can the L7815ABV be used for adjustable voltage regulation?
Yes, although it is primarily a fixed voltage regulator, it can be used with external components to obtain adjustable voltage and currents.
- What is the operating junction temperature range of the L7815ABV?
The operating junction temperature range is -40 to 125°C.
- Does the L7815ABV have short circuit protection?
Yes, it features short circuit current limiting and safe area protection.
- What is the ripple rejection of the L7815ABV?
The device offers high ripple rejection, with a supply voltage rejection of up to 58 dB at 120 Hz.
- What are some common applications of the L7815ABV?
Common applications include local on-card regulation, power supplies, industrial control systems, consumer electronics, and automotive systems.
