NUD3124DMT1G - 28V 150mA Automotive Inductive Load Driver | onsemi
N.º da peça: NUD3124DMT1G ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0.42 | $0,42 |
| 10 | $0.36 | $3,60 |
| 100 | $0.28 | $28,00 |
| 500 | $0.22 | $110,00 |
| 1.000 | $0.18 | $180,00 |
| 3.000 | $0.15 | $450,00 |
NUD3124DMT1G Visão geral
An inductive load driver is a type of low-side power switch IC that combines a power MOSFET with built-in flyback protection, allowing compact, single-component control of relays, solenoids, valves, and small DC motors without the need for an external free-wheeling diode. The NUD3124 belongs to the broader power management IC category and is one of the smallest single-channel low-side switch solutions available in an SC-74 outline.
Key features include 28V maximum load supply, 150 mA continuous drain current, integrated N-channel MOSFET plus integrated clamp diode, logic-level input threshold, and automotive-grade qualification (AEC-Q100) for harsh-environment applications. The internal flyback clamp eliminates the need for an external diode, simplifying PCB layout and reducing BOM count when compared with discrete MOSFET-plus-diode solutions.
The NUD3124 uses an N-channel MOSFET output stage with on-resistance suitable for sub-200 mA loads. The internal Zener/clamp network absorbs the inductive kick when the load is de-energized, protecting both the driver IC and the surrounding circuitry. The device is qualified to automotive reliability standards, making it well suited for body electronics, climate control modules, and powertrain peripherals.
Typical applications include driving relays and solenoids in automotive body modules, small DC motors in HVAC actuators, lamps and LED indicators, and any low-side inductive switching where a compact, integrated solution is preferred. It is commonly used in BCM (body control modules), HVAC door-lock actuators, and windshield wiper control.
When designing with this part, ensure the load supply does not exceed 28V and that the load current remains below 150 mA continuous. The integrated diode handles inductive flyback; an external TVS or free-wheeling diode is generally not required, simplifying the BOM.
This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes that complement the onsemi NUD3124 datasheet.
Alternativas drop-in para NUD3124DMT1G — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
SZNUD3124DMT1G
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
NUD3124DMT1G-Q
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
NUD3124LT1G
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
NUD3124DMT1G Classificações máximas e características elétricas
| Função | Inductive Load Driver / Relay / Solenoid Driver |
| Configuração de saída | Low Side, N-Channel |
| Load Supply Voltage (Max) | 28 V |
| Continuous Load Current | 150 mA |
| Input Logic Level | Logic-level (1.8V / 3.3V / 5V compatible) |
| Integrated Free-Wheeling Diode | Yes (internal clamp) |
| Encapsulamento | SC-74 (SOT-457), 6-pin |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 C to +125 C (automotive) |
| Automotive Qualification | AEC-Q100 qualified |
| Status RoHS | Compliant |
| Nível MSL | 1 |
| Number of Channels | 1 |
| Input Type | Logic-level, non-inverting |
| Tipo de saída | Open-drain N-channel MOSFET |
Configuração de pinos do NUD3124DMT1G
| Pino 1 | IN — Logic-level input |
| Pino 2 | GND — Ground |
| Pino 3 | GND — Ground |
| Pino 4 | OUT — Open-drain output to load |
| Pino 5 | VCC — Load supply (up to 28V) |
| Pino 6 | NC — Not connected (per datasheet) |
Aplicações típicas
NUD3124DMT1G é adequado para 6 aplicaçãos: Automotive Relay Driver, Solenoid and Valve Driver, Small DC Motor Driver, Lamp and LED Indicator Driver, Industrial Process Control Outputs, Body Control Module (BCM) Output.
Automotive Relay Driver
The NUD3124DMT1G is well suited for automotive relay driving thanks to its 28V load supply rating and 150 mA continuous drain current which directly covers the coil current of standard automotive PCB relays. The integrated free-wheeling diode clamp absorbs the inductive kickback when the relay coil is de-energized, removing the need for an external diode and shrinking PCB area in body control modules. With AEC-Q100 qualification, the part survives under-hood and cabin temperature swings from -40C to +125C, making it a robust choice for door-lock, horn, and lighting relays where long-term reliability and compact BOM are mandatory.
Recomendado
Solenoid and Valve Driver
The NUD3124DMT1G drives small DC solenoids and pneumatic/hydraulic valves with currents up to 150 mA. Its low-side open-drain topology is the standard configuration for solenoid switching in industrial and automotive systems, and the internal clamp protects against the high-voltage flyback pulse that occurs when the solenoid coil collapses. Compared with a discrete MOSFET plus diode solution, the NUD3124DMT1G simplifies the BOM and saves PCB space while still meeting automotive environmental requirements, which is valuable in HVAC and emissions-control subsystems.
Recomendado
Small DC Motor Driver
Small brushless or brushed DC motors under 150 mA can be driven directly by the NUD3124DMT1G. The device's logic-level input lets a microcontroller or PLC GPIO pin control the motor enable line without additional driver circuitry, and the integrated clamp absorbs the motor's back-EMF when power is removed. This is ideal for low-power HVAC damper actuators, mirror adjusters, and small fan motors where cost and PCB area dominate the design constraint. For PWM speed control, the input can be driven at modest duty cycles within the thermal envelope.
Recomendado
Lamp and LED Indicator Driver
Automotive interior lamps, indicator LEDs, and small incandescent bulbs up to 150 mA can be switched by the NUD3124DMT1G. The 28V load supply handles 12V and 24V battery transients comfortably, and the integrated clamp protects the part from the inductive spike of any nearby wiring. Using the NUD3124 instead of a discrete FET reduces component count on the BCM and improves diagnostic capability when paired with a sense resistor or current monitor. The SC-74 footprint is well suited for high-density BCM layouts.
Recomendado
Industrial Process Control Outputs
In industrial PLCs and process controllers, the NUD3124DMT1G serves as a low-side output driver for 24V control signals, small solenoid valves, and indicator lamps. Its logic-level input is compatible with 3.3V or 5V PLC logic, and the integrated free-wheeling diode handles the inductive kickback from field-side wiring. Although the 150 mA rating is below some heavier industrial loads, it is ideal for signal-level outputs and pilot-relay driving where a small, reliable, integrated solution is preferred.
Recomendado
Body Control Module (BCM) Output
The NUD3124DMT1G is a strong fit for body control module outputs that drive multiple low-power inductive loads such as door-lock actuators, window lift relays, and mirror-adjust motors. Its small SC-74 footprint allows many channels to be placed densely, and the AEC-Q100 qualification simplifies the automotive PPAP and reliability review. The internal clamp eliminates the BOM of an external diode per channel, which adds up to significant cost and area savings on a BCM with 10+ outputs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para NUD3124DMT1G — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | SZNUD3124DMT1G | NUD3124DMT1G-Q | NUD3124LT1G | NUD3160LT1G | NCV8402ST1G | VNN3NV04PTR-E |
|---|---|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi |
| Package | SC-74 (SOT-457) | SC-74 (SOT-457) - same | SC-74 (SOT-457) - same | SC-74 (SOT-457) - same | SOT-23-3 - different | SOT-223 - different | SOT-223 - different |
| Load Supply Voltage (Max) | 28 V | 28 V | 28 V | 28 V | 60 V | 40 V | 40 V |
| Continuous Drain Current | 150 mA | 150 mA | 150 mA | 150 mA | 200 mA | 2 A | 3.5 A |
| Integrated Free-Wheeling Diode | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 (explicit -Q suffix) | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Logic-Level Input | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Pin-to-Pin Compatible | Reference | Yes - drop-in | Yes - drop-in | Yes - drop-in | No - different pinout | No - different pinout | No - different pinout |
Principais diferenciais
- Integrated free-wheeling diode in SC-74 (vs Discrete N-channel MOSFET + external diode)
- Compact 6-pin SC-74 single-channel driver (vs Multi-channel drivers like NCV8402ST1G)
- AEC-Q100 automotive qualification (vs Industrial-grade low-side switches)
Notas de projeto
The SC-74 package has limited thermal dissipation; sustained currents near 150 mA at high ambient temperature will push the junction temperature toward the 150 C limit. Estimated: with theta_JA around 200 C/W for the SC-74 on a standard 1 oz copper 2-layer board, a continuous 150 mA load at 24V dissipating about 3.6W causes a junction rise over ambient of roughly 720 C - well beyond safe limits. Therefore keep continuous loads to under 100 mA in practice, or use a thermally enhanced board layout with copper pours.
Place the load-side ground return (pin 2/3) close to the system ground to minimize parasitic inductance in the flyback path. The integrated clamp diode absorbs inductive energy, but a long ground trace will create ringing during turn-off. Use wide copper pours on GND and OUT, and place any nearby MCU at least a few millimeters away to avoid coupling the flyback transient into sensitive analog traces.
Do not exceed 28V on the load supply pin - the internal clamp is rated for inductive transients only, not DC overvoltage. Do not parallel multiple NUD3124 outputs to drive a single load without accounting for share imbalance; the parts are not designed for parallel operation. Always verify that the load current stays within the SOA at the maximum ambient temperature of your enclosure, and de-rate by at least 25% for reliable automotive operation.
Informações de conformidade
RoHS compliant and lead-free per onsemi NUD3124 datasheet. AEC-Q100 qualified for automotive applications. The SZ-prefix variant (SZNUD3124DMT1G) shares the same compliance profile.
