Overview
The L7815CD2T-TR is a three-terminal positive voltage regulator from STMicroelectronics, part of the L78 series. This regulator is designed to provide a fixed output voltage of 15V and is available in the D2PAK package. It is suitable for a wide range of applications due to its robust features and high reliability.
The L78 series regulators are known for their thermal overload protection, short circuit protection, and output transition SOA (Safe Operating Area) protection, making them essentially indestructible if adequate heat sinking is provided. These regulators can deliver over 1 A of output current and are ideal for local on-card regulation, eliminating the distribution problems associated with single point regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 14.7 - 15.3 | V |
| Output Current | Up to 1.5 A | A |
| Input Voltage Range | 17.9 to 30 V | V |
| Dropout Voltage | 2 V | V |
| Thermal Resistance Junction-Case | 3 °C/W | °C/W |
| Thermal Resistance Junction-Ambient | 62.5 °C/W | °C/W |
| Operating Junction Temperature Range | 0 to 125 °C | °C |
| Storage Temperature Range | -65 to 150 °C | °C |
| Output Voltage Tolerance | 2% (A version) | % |
| Minimum Load Current for Regulation | 5 mA | mA |
Key Features
- Fixed output voltage of 15V with a tolerance of 2% (A version)
- Output current up to 1.5 A
- Thermal overload protection and short circuit protection
- Output transition SOA (Safe Operating Area) protection
- Internal current limiting and safe area protection
- Available in D2PAK package
- Guaranteed in extended temperature range (A version)
- Low dropout voltage of 2 V
- Low output noise voltage
Applications
The L7815CD2T-TR is versatile and can be used in a variety of applications, including:
- Local on-card regulation to eliminate distribution problems associated with single point regulation
- Power supplies for electronic devices requiring a stable 15V output
- Industrial control systems and automation
- Consumer electronics and appliances
- Aerospace and defense systems where reliability is critical
Q & A
- What is the output voltage of the L7815CD2T-TR?
The output voltage of the L7815CD2T-TR is 15V with a tolerance of 2% (A version).
- What is the maximum output current of the L7815CD2T-TR?
The maximum output current is up to 1.5 A.
- What type of protection does the L7815CD2T-TR have?
The L7815CD2T-TR has thermal overload protection, short circuit protection, and output transition SOA protection.
- In what package is the L7815CD2T-TR available?
The L7815CD2T-TR is available in the D2PAK package.
- What is the dropout voltage of the L7815CD2T-TR?
The dropout voltage is 2 V.
- What is the minimum load current required for regulation?
The minimum load current for regulation is 5 mA.
- What is the operating junction temperature range of the L7815CD2T-TR?
The operating junction temperature range is 0 to 125 °C.
- What is the storage temperature range of the L7815CD2T-TR?
The storage temperature range is -65 to 150 °C.
- Can the L7815CD2T-TR be used in adjustable voltage applications?
Yes, the L7815CD2T-TR can be used with external components to obtain adjustable voltage and currents.
- What are some common applications of the L7815CD2T-TR?
Common applications include local on-card regulation, power supplies, industrial control systems, consumer electronics, and aerospace and defense systems.
