Overview
The NUD3124LT1G from Onsemi is a Relay Driver designed to robustly drive D.C. relay coils in various applications including automotive, industrial, and consumer electronics. This micro-integrated part provides a single component solution to switch inductive loads such as relays, solenoids, and small DC motors without the need for a free-wheeling diode. It accepts logic level inputs, allowing it to be driven by a wide range of devices including logic gates, inverters, and microcontrollers. The device is packaged in a SOT-23 case and is known for its efficiency and reliability in managing high-power loads.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-to-Source Voltage (VDSS) | 28 | V |
| Gate-to-Source Voltage (VGSS) | 12 | V |
| Drain Current (ID) | 150 | mA |
| Maximum Junction Temperature | 150 | °C |
| Storage Temperature Range | -65 to 150 | °C |
| Total Power Dissipation (PD) | 225 mW (SOT-23) | mW |
| On-state Resistance (RDS(ON)) | 0.8 Ω | Ω |
| Package Type | SOT-23 | |
| Pin Count | 3 | |
| Pins | Input (IN), Output (OUT), Ground (GND) |
Key Features
- Provides a robust interface between D.C. relay coils and sensitive logic circuits.
- Capable of driving relay coils rated up to 150 mA at 12 V.
- Replaces 3 or 4 discrete components for lower cost and increased efficiency.
- Internal Zener eliminates the need for a free-wheeling diode.
- Meets load dump and other automotive specifications.
- Simplifies circuit design and PCB layout.
- Low on-resistance features.
Applications
- Automotive: controlling high-current loads, driving high-power LEDs, and powering management circuits and lighting systems.
- Industrial: switching inductive loads such as relays, solenoids, and small DC motors.
- Consumer Electronics: driving high-power LEDs and controlling high-current loads.
- Communications & Networking, Automation & Process Control, Sensing & Instrumentation, Test & Measurement.
Q & A
- What is the primary function of the NUD3124LT1G? The NUD3124LT1G is designed to robustly drive D.C. relay coils in various applications.
- What types of loads can the NUD3124LT1G drive? It can drive relays, solenoids, and small DC motors.
- What is the maximum drain current of the NUD3124LT1G? The maximum drain current is 150 mA.
- What is the package type of the NUD3124LT1G? The package type is SOT-23.
- Does the NUD3124LT1G require a free-wheeling diode? No, it has an internal Zener that eliminates the need for a free-wheeling diode.
- What are the typical applications of the NUD3124LT1G? Automotive, industrial, and consumer electronics.
- What is the maximum junction temperature of the NUD3124LT1G? The maximum junction temperature is 150 °C.
- How many pins does the NUD3124LT1G have? It has 3 pins: Input (IN), Output (OUT), and Ground (GND).
- Is the NUD3124LT1G RoHS compliant? Yes, it is RoHS compliant.
- What is the on-state resistance of the NUD3124LT1G? The on-state resistance is 0.8 Ω.
