Overview
The MC7915CTG is a negative voltage regulator produced by onsemi, designed to provide a stable and reliable negative voltage output. This component is part of the MC7900 series, which offers a range of fixed output voltage options from -5.0 V to -24 V. The MC7915CTG specifically provides a fixed output voltage of -15 V, making it suitable for various applications requiring a stable negative voltage supply.
Key Specifications
| Characteristics | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = +25°C) | VO | -14.7 | -15 | -15.3 | Vdc |
| Line Regulation (TJ = +25°C, IO = 100 mA) | Regline | -17.5 | - | -20 | mV |
| Load Regulation (TJ = +25°C, 5.0 mA ≤ IO ≤ 1.5 A) | Regload | -68 | - | -25 | mV |
| Input Bias Current (TJ = +25°C) | IIB | -4.4 | - | -8.0 | mA |
| Dropout Voltage (IO = 1.0 A, TJ = +25°C) | VI-VO | -1.3 | - | - | Vdc |
| Ripple Rejection (IO = 20 mA, f = 120 Hz) | RR | -60 | - | - | dB |
| Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) | Vn | -90 | - | - | μV |
| Average Temperature Coefficient of Output Voltage | VO/°T | -1.0 | - | - | mV/°C |
Key Features
- Fixed Output Voltage: Provides a stable -15 V output voltage.
- Current Limiting: Includes current limiting to protect against overcurrent conditions.
- Thermal Shutdown: Features thermal shutdown to prevent overheating and ensure device reliability.
- Safe-Area Compensation: Incorporates safe-area compensation to maintain stability and performance.
- High Ripple Rejection: Offers high ripple rejection (60 dB at 120 Hz) for clean output voltage.
- Low Dropout Voltage: Has a low dropout voltage of 1.3 V, ensuring efficient operation.
Applications
- Power Supplies: Suitable for use in power supply circuits requiring a stable negative voltage output.
- Audio Equipment: Used in audio equipment to provide a clean and stable negative voltage supply.
- Industrial Control Systems: Employed in industrial control systems where reliable negative voltage regulation is necessary.
- Medical Devices: Can be used in medical devices that require precise and stable voltage regulation.
- Telecommunication Equipment: Used in telecommunication equipment to ensure stable operation.
Q & A
- What is the output voltage of the MC7915CTG?
The output voltage of the MC7915CTG is -15 V.
- What are the key features of the MC7915CTG?
The key features include fixed output voltage, current limiting, thermal shutdown, safe-area compensation, high ripple rejection, and low dropout voltage.
- What is the ripple rejection of the MC7915CTG?
The ripple rejection is 60 dB at 120 Hz.
- What is the dropout voltage of the MC7915CTG?
The dropout voltage is 1.3 V.
- What is the average temperature coefficient of the output voltage?
The average temperature coefficient of the output voltage is -1.0 mV/°C.
- What are some common applications of the MC7915CTG?
Common applications include power supplies, audio equipment, industrial control systems, medical devices, and telecommunication equipment.
- Does the MC7915CTG have thermal shutdown protection?
Yes, the MC7915CTG includes thermal shutdown protection to prevent overheating.
- What is the input bias current range of the MC7915CTG?
The input bias current range is from -4.4 mA to -8.0 mA.
- What is the load regulation of the MC7915CTG?
The load regulation is typically -68 mV for 5.0 mA ≤ IO ≤ 1.5 A.
- Is the MC7915CTG suitable for high-frequency applications?
The MC7915CTG has good ripple rejection and low output noise, making it suitable for applications requiring a clean and stable voltage supply, including high-frequency applications.
