Overview
The MC7905CD2TG is a fixed output negative linear voltage regulator from onsemi, designed as a complement to the popular MC7800 series devices. This regulator is available in a range of fixed output voltage options, including -5.0 V, which is the specific output voltage for the MC7905 series. It is robust and reliable, featuring internal thermal overload protection, short circuit current limiting, and output transistor safe-area compensation. The MC7905CD2TG can deliver output currents up to 1.0 A with adequate heatsinking, making it suitable for various industrial applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = +25°C) | VO | -4.9 | -5.0 | -5.1 | Vdc |
| Line Regulation (TJ = +25°C, IO = 1.0 A) | Regline | -7.0 | - | -8.0 | mV |
| Load Regulation (TJ = +25°C, 5.0 mA ≤ IO ≤ 1.5 A) | Regload | - | - | 12 | mV |
| Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) | Vn | -40 | - | - | µV |
| Ripple Rejection (IO = 20 mA, f = 120 Hz) | RR | -70 | - | - | dB |
| Dropout Voltage (IO = 1.0 A, TJ = +25°C) | VI−VO | -1.3 | - | - | Vdc |
| Average Temperature Coefficient of Output Voltage | ΔVO/ΔT | -1.0 | - | - | mV/°C |
| Input Bias Current (TJ = +25°C) | IIB | -4.4 | - | 8.0 | mA |
| Temperature Range | - | 0°C | - | 125°C | - |
| Package | - | D2PAK, TO-220 | - | - | - |
Key Features
- No external components required for operation.
- Internal thermal overload protection to prevent overheating.
- Internal short circuit current limiting to protect against overcurrent conditions.
- Output transistor safe-area compensation for enhanced reliability.
- Available in 2% voltage tolerance (see ordering information).
- Pb-free package options available (denoted by the G-suffix).
Applications
The MC7905CD2TG is suitable for a variety of industrial and electronic applications where a stable negative voltage supply is required. These include:
- Power supplies for industrial equipment.
- Electronic test and measurement instruments.
- Telecommunication systems.
- Automotive electronics.
- MECL (Emitter-Coupled Logic) systems.
Q & A
- What is the output voltage of the MC7905CD2TG?
The output voltage of the MC7905CD2TG is -5.0 V.
- What is the maximum output current of the MC7905CD2TG?
The maximum output current is 1.0 A.
- What are the key protection features of the MC7905CD2TG?
The key protection features include internal thermal overload protection and internal short circuit current limiting.
- What is the temperature range for the MC7905CD2TG?
The temperature range is from 0°C to 125°C.
- What packages are available for the MC7905CD2TG?
The MC7905CD2TG is available in D2PAK and TO-220 packages.
- Does the MC7905CD2TG require external components for operation?
No, the MC7905CD2TG does not require external components for operation.
- What is the ripple rejection of the MC7905CD2TG?
The ripple rejection is -70 dB at 120 Hz.
- What is the dropout voltage of the MC7905CD2TG?
The dropout voltage is -1.3 Vdc at IO = 1.0 A and TJ = +25°C.
- What is the average temperature coefficient of output voltage for the MC7905CD2TG?
The average temperature coefficient of output voltage is -1.0 mV/°C.
- Is the MC7905CD2TG available in Pb-free packages?
