Overview
The MC78M15CDTG is a 500 mA positive voltage regulator from onsemi, part of the MC78M00/MC78M00A and NCV78M00 series. These regulators are designed for local, on-card voltage regulation and are similar to the MC7800 series but with half the output current. They are known for their ruggedness and reliability under various operating conditions, featuring internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor.
Key Specifications
| Characteristics | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 14.4 | 14.7 | 15.6 | Vdc |
| Output Voltage Variation (17.5 Vdc ≤ VI ≤ 30 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | VO | 14.25 | - | 15.75 | Vdc |
| Line Regulation (TJ = 25°C, 17.5 Vdc ≤ VI ≤ 30 Vdc, IO = 200 mA) | Regline | - | 6.0 | 50 | mV |
| Load Regulation (TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA) | Regload | - | - | 25 | mV |
| Dropout Voltage (TJ = 25°C) | VI−VO | - | 2.0 | - | Vdc |
| Short Circuit Current Limit (TJ = 25°C, VI = 35 V) | IOS | - | 350 | - | mA |
| Average Temperature Coefficient of Output Voltage (IO = 5.0 mA) | ΔVO/ΔT | - | ±0.3 | - | mV/°C |
| Peak Output Current (TJ = 25°C) | IO | - | 700 | - | mA |
| Operating Junction Temperature Range | TJ | - | - | +150 | °C |
| Storage Temperature Range | Tstg | -65 | - | +150 | °C |
Key Features
- No external components required for operation.
- Internal thermal overload protection.
- Internal short circuit current limiting.
- Output transistor safe-area compensation.
- High accuracy (±2%) available in the MC78M00A series.
- Available in various output voltages: 5.0 V, 8.0 V, 12 V, and 15 V.
- NCV prefix for automotive and other applications requiring enhanced reliability.
Applications
- Local, on-card voltage regulation in various electronic devices.
- Automotive systems requiring high reliability and robustness.
- Industrial control systems and equipment.
- Consumer electronics needing stable voltage regulation.
- Medical devices and equipment requiring precise voltage control.
Q & A
- What is the maximum output current of the MC78M15CDTG?
The maximum output current is 500 mA with adequate heatsinking.
- What are the key protection features of the MC78M15CDTG?
The device features internal thermal overload protection, internal short circuit current limiting, and output transistor safe-area compensation.
- What is the dropout voltage of the MC78M15CDTG?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- What is the operating junction temperature range of the MC78M15CDTG?
The operating junction temperature range is from 0°C to +150°C.
- What is the storage temperature range for the MC78M15CDTG?
The storage temperature range is from -65°C to +150°C.
- Does the MC78M15CDTG require external components for operation?
No, the MC78M15CDTG does not require external components for operation.
- What are the available output voltages for the MC78M00 series?
The available output voltages are 5.0 V, 8.0 V, 12 V, and 15 V.
- What is the average temperature coefficient of output voltage for the MC78M15CDTG?
The average temperature coefficient of output voltage is ±0.3 mV/°C at IO = 5.0 mA.
- What is the peak output current of the MC78M15CDTG?
The peak output current is 700 mA at TJ = 25°C.
- What are some common applications of the MC78M15CDTG?
Common applications include local, on-card voltage regulation in various electronic devices, automotive systems, industrial control systems, consumer electronics, and medical devices.
