Overview
The L7915ACV-DG is a three-terminal negative voltage regulator produced by STMicroelectronics. This component is part of the L79 series, which is designed to provide stable negative voltage outputs. The L7915ACV-DG is specifically configured to deliver a fixed output voltage of -15V. It is available in various packages, including TO-220, TO-220FP, and D²PAK, making it versatile for different application needs.
This regulator is suitable for a wide range of applications, particularly where local on-card regulation is required, and it can be used in split power supply configurations. The device features thermal overload protection, short-circuit protection, and output SOA (Safe Operating Area) protection, ensuring reliable operation under various conditions.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Output Voltage (VO) | -14.7 | -15 | -15.3 | V |
| Output Current (IO) | - | - | 1.5 A | A |
| Input Voltage (VI) | - | - | -35 V | V |
| Quiescent Current (Id) | - | 3 mA | - | mA |
| Dropout Voltage (Vd) | - | 1.1 V | - | V |
| Short Circuit Current (Isc) | - | 0.7 A | - | A |
| Operating Junction Temperature (TJ) | 0 °C | - | 125 °C | °C |
| Thermal Resistance Junction-Case (RthJC) | - | 3 °C/W (D²PAK) | - | °C/W |
| Thermal Resistance Junction-Ambient (RthJA) | - | 62.5 °C/W (D²PAK) | - | °C/W |
Key Features
- Fixed Output Voltage: The L7915ACV-DG provides a stable output voltage of -15V.
- High Output Current: Capable of delivering up to 1.5 A of output current.
- Thermal Overload Protection: Protects the device from overheating.
- Short-Circuit Protection: Prevents damage from short circuits.
- Output SOA Protection: Ensures safe operating area for the output.
- Low Dropout Voltage: Dropout voltage of 1.1 V at 1 A output current.
- Output Tolerance: 2% output voltage tolerance at 25 °C for the AC version.
Applications
- Local On-Card Regulation: Suitable for providing local regulation on PCBs, eliminating distribution problems associated with single-point regulation.
- Split Power Supplies: Ideal for use in split power supply configurations, offering the same voltage options as the L78 positive standard series.
- Industrial and Consumer Electronics: Used in various industrial and consumer electronic devices requiring stable negative voltage supplies.
- Automotive Systems: Can be used in automotive systems where reliable and stable voltage regulation is crucial.
Q & A
- What is the output voltage of the L7915ACV-DG?
The output voltage of the L7915ACV-DG is -15V.
- What is the maximum output current of the L7915ACV-DG?
The maximum output current is 1.5 A.
- What type of protection does the L7915ACV-DG have?
The device features thermal overload protection, short-circuit protection, and output SOA protection.
- What is the dropout voltage of the L7915ACV-DG?
The dropout voltage is 1.1 V at 1 A output current.
- What is the operating junction temperature range for the L7915ACV-DG?
The operating junction temperature range is 0 to 125 °C.
- What packages are available for the L7915ACV-DG?
The device is available in TO-220, TO-220FP, and D²PAK packages.
- What is the quiescent current of the L7915ACV-DG?
The quiescent current is typically 3 mA.
- Is the L7915ACV-DG suitable for split power supply configurations?
Yes, it is particularly suited for split power supply configurations.
- What is the thermal resistance junction-case for the D²PAK package?
The thermal resistance junction-case for the D²PAK package is 3 °C/W.
- What is the output voltage tolerance at 25 °C for the AC version?
The output voltage tolerance is 2% at 25 °C for the AC version.
