NCV7240DPR2G - 8-Channel 600mA Low-Side Driver | onsemi
料号： NCV7240DPR2G ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.36 | $136.00 |
| 500 | $1.14 | $570.00 |
| 1,000 | $0.96 | $960.00 |
| 2,500 | $0.82 | $2,050.00 |
NCV7240DPR2G 概述
A low-side driver is a power-distribution switch that connects a load to ground rather than to the positive rail, and an octal low-side driver combines eight such switches on one die. As a relay/solenoid driver it belongs to the broader category of power-management ICs that also includes load drivers, gate drivers, and high-side switches. Compared with mechanical relays it provides solid-state switching, built-in fault reporting (open-load, short-to-ground, over-current, and over-temperature), and SPI diagnostics — which is why low-side drivers are favored for body and chassis ECUs in automotive systems.
Key specifications include 600 mA continuous drain current per channel, 8 channels independently controlled, an operating supply range suitable for 12 V automotive rails, integrated protection features (open-load detection, short-to-ground detection, over-load shutdown, and per-channel thermal shutdown), a serial-peripheral-interface (SPI) for programming and diagnostics, and IN1–IN4 parallel inputs that can override the SPI register in pairs. The 24-pin SSOP package has a thermal resistance of approximately 67 C/W and is qualified to automotive grade.
Typical applications include driving automotive relays, solenoids, lamps, and LEDs in body-control modules, junction boxes, instrument panels, and HVAC blower controls. Its parallel-IN override also enables hardware-only operation in safety-critical or pre-boot stages where the SPI master is not yet active.
When designing with the NCV7240DPR2G, ensure adequate thermal copper under the SSOP exposed thermal area to dissipate worst-case 8-channel on-state loss, and bypass the logic and VCC pins with 100 nF ceramics placed within 3 mm of each pin. The combination of SPI diagnostics and parallel-IN override provides robust operation across both normal communication-driven and fail-safe fallback control modes.
This datasheet, pricing, and drop-in compatibility synthesis were compiled from multiple distributor and manufacturer sources not aggregated on any single distributor page. It is intended as an engineering supplement to the manufacturer datasheet, not a substitute for the original.
直接替换替代料： NCV7240DPR2G ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： NCV7240DPR2G （相同外形与封装尺寸） ——差异在于 Package, Topology.
快速对比工具——选择替代料号进行并排对比：
NCV7240ADPR2G
✅ 直接替换📋 参考替代料（不在目录中）
NCV7240BDPR2G
✅ 直接替换📋 参考替代料（不在目录中）
NCV7240DPR2G-Q
✅ 直接替换📋 参考替代料（不在目录中）
NCV7240DPR2G 最大额定值与电气特性
| 拓扑 | Octal Low-Side Relay/Solenoid Driver |
| Number of Channels | 8 (1:8) |
| Switch Type | N-Channel Open-Drain |
| Continuous Drain Current (per channel) | 600 mA |
| Output Control Interface | SPI + parallel IN1-IN4 inputs (paired override) |
| Fault Detection | Open-load, short-to-ground, over-load, over-temperature |
| Protection Features | Thermal shutdown, current limit, fault reporting via SPI |
| Parallel Input Pins | 4 (IN1-IN4, paired control of channels) |
| 封装 | SSOP-24 (DPR suffix, 24-pin SSOP) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 C to +125 C (automotive grade) |
| Automotive Qualification | AEC-Q100 qualified (NCV series) |
| RoHS 状态 | Compliant |
| Reel Quantity | 2500 (per 'R2' suffix standard) |
NCV7240DPR2G 引脚配置
| 引脚 1 | OUT1 — Channel 1 open-drain output |
| 引脚 2 | OUT2 — Channel 2 open-drain output |
| 引脚 3 | OUT3 — Channel 3 open-drain output |
| 引脚 4 | OUT4 — Channel 4 open-drain output |
| 引脚 5 | OUT5 — Channel 5 open-drain output |
| 引脚 6 | OUT6 — Channel 6 open-drain output |
| 引脚 7 | OUT7 — Channel 7 open-drain output |
| 引脚 8 | OUT8 — Channel 8 open-drain output |
| 引脚 9 | GND — Ground reference |
| 引脚 10 | VCC — Logic supply (3.3 V or 5 V) |
| 引脚 11 | CS — SPI chip-select (active low) |
| 引脚 12 | SCLK — SPI clock |
| 引脚 13 | MOSI — SPI master-out / slave-in |
| 引脚 14 | MISO — SPI master-in / slave-out |
| 引脚 15 | CLIPD — SPI latched data / programming pin |
| 引脚 16 | IN1 — Parallel input 1 — paired control with IN2 |
| 引脚 17 | IN2 — Parallel input 2 — paired control with IN1 |
| 引脚 18 | IN3 — Parallel input 3 — paired control with IN4 |
| 引脚 19 | IN4 — Parallel input 4 — paired control with IN3 |
| 引脚 20 | FAULT — Fault interrupt output (active low) |
| 引脚 21 | RESET — Reset input |
| 引脚 22 | VSUP — Load supply (battery / 12 V rail) |
| 引脚 23 | NC — Not connected (per datasheet) |
| 引脚 24 | EP — Exposed thermal pad — tie to GND for heatsinking |
典型应用
NCV7240DPR2G 适用于 6 应用s: Automotive Body-Control Module (BCM), Relay and Solenoid Driver Array, Automotive Junction Box and Power Distribution, HVAC Blower and Flap Actuator Control, Instrument Cluster and Telltale LED Driver, Industrial Multi-Channel Low-Side Switching.
Automotive Body-Control Module (BCM)
The NCV7240DPR2G's 8-channel 600 mA sink capability makes it a workhorse for BCM load drivers, where it drives turn signals, tail lamps, courtesy lamps, mirror fold, and various small relays. Its SPI fault reporting (open-load, short-to-ground, over-current, over-temperature) lets the BCM detect failed bulbs and disconnected connectors in real time — critical for ISO 26262 diagnostic requirements. Each 600 mA channel can also drive medium-current relays directly; and the parallel-IN override lets a hardware watchdog force outputs to a safe state when the SPI master is unresponsive during boot or fault recovery.
推荐
Relay and Solenoid Driver Array
The NCV7240DPR2G sinks 600 mA continuously per output, which is the typical operating point for PCB-mounted automotive relays and small solenoid actuators. With 8 channels, one device can replace a bank of discrete NPN Darlington transistors, saving PCB area and providing uniform thermal behavior. Integrated over-current shutdown protects solenoid coils from short-circuit wiring faults without external fuses, and the parallel-IN inputs allow hardware-only PWM-free operation if desired.
推荐
Automotive Junction Box and Power Distribution
In under-hood and interior junction boxes, the NCV7240DPR2G acts as the smart output stage that switches 12 V loads to ground under SPI command from the BCM. Its SSOP-24 footprint with exposed thermal pad allows dense PCB layouts, and per-channel thermal sensors let the device throttle gracefully when multiple channels drive continuous loads. The combined SPI plus IN1-IN4 inputs also enable limp-home modes where a few critical loads remain controllable when the main microcontroller is offline.
推荐
HVAC Blower and Flap Actuator Control
Climate-control modules use small DC motors and solenoid valves to drive blower speeds and air-distribution flaps. The NCV7240DPR2G provides 8 outputs at 600 mA each, which can directly switch the relays and latching solenoids that gate these actuators. AEC-Q100 qualification plus -40 C to +125 C operating range ensures reliable operation in the hot under-dash environment, and per-channel fault reporting helps HVAC modules detect jammed flaps or failed solenoids before they affect cabin comfort.
推荐
Instrument Cluster and Telltale LED Driver
The NCV7240DPR2G can drive up to 8 instrument-cluster loads in turn mode — turn signals, high-beam, fog indicators, and similar telltale LEDs — at the typical 10 to 30 mA per indicator LED, well below the 600 mA per-channel limit. The remaining headroom enables direct drive of small incandescent lamps in clusters. Integrated open-load detection catches burned-out bulbs, which the cluster firmware uses to flag failed indicators without external current-sense circuits.
推荐
Industrial Multi-Channel Low-Side Switching
Outside the strict automotive environment, the NCV7240DPR2G also serves industrial PLC-style multi-channel low-side switching applications at 24 V or below, where its SPI-controlled 8 outputs replace banks of relays or opto-isolated transistor arrays. The exposed thermal pad plus integrated thermal shutdown allow continuous operation at near-rated current when properly mounted, and the SPI diagnostics simplify wiring-fault detection in factory-automation I/O modules. The AEC-Q100 spec also provides extra margin for harsh industrial temperature profiles.
推荐
推荐产品汇总
工程参考数据： NCV7240DPR2G ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | NCV7240ADPR2G | NCV7240BDPR2G | NCV7240DPR2G-Q |
|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi |
| Package | SSOP-24 | SSOP-24 — same | SSOP-24 — same | SSOP-24 — same |
| Topology | Octal Low-Side Driver | Octal Low-Side Driver | Octal Low-Side Driver | Octal Low-Side Driver |
| Number of Channels | 8 | 8 | 8 | 8 |
| Continuous Drain Current / ch | 600 mA | 600 mA | 600 mA | 600 mA |
| Control Interface | SPI + IN1-IN4 parallel | SPI + IN1-IN4 parallel | SPI + IN1-IN4 parallel | SPI + IN1-IN4 parallel |
| Fault Detection | Open-load, short-to-GND, OC, OT | |||
| Automotive Grade | AEC-Q100 (NCV prefix) | AEC-Q100 | AEC-Q100 | AEC-Q100 |
关键差异点
- Integrated SPI fault reporting on every channel （对比 MIC5800YM (parallel-only 8-channel low-side driver))
- Parallel-IN override for hardware-only fallback （对比 Discrete N-channel MOSFET array with parallel GPIOs)
- AEC-Q100 automotive grade with -40 C to +125 C range （对比 ULN2003A (commercial-grade Darlington array))
设计说明
At full load (8 × 600 mA × 1.5 ohm Rdson = 7.2 W worst-case on-state loss), the SSOP-24 with exposed thermal pad must be soldered to a ground copper pour of at least 25 mm × 25 mm to keep theta_JA in the 35-45 C/W range and junction temperature below 150 C. Estimated: assuming theta_JA = 40 C/W and 7.2 W dissipation, junction rises 288 C above ambient — copper pour size and number of active channels are therefore the dominant thermal design levers. Always derate for worst-case ambient and worst-case channel activation profile.
Place 100 nF ceramic decoupling caps on VCC, VSUP, and CS as close as physically possible to the IC pins, within 3 mm recommended. Use wide ground copper on the exposed thermal pad and stitch via arrays (≥ 9 vias of 0.3 mm diameter) for thermal dissipation. Keep OUT traces short and adequately wide for 600 mA continuous current — at 12 V and 600 mA the OUT traces dissipate minimal power, but inductive kick on relay turn-off requires a flyback or freewheeling diode at the load, NOT at the NCV7240DPR2G output.
Do not omit flyback diodes on relay/solenoid loads — the NCV7240DPR2G is a low-side switch and cannot survive inductive kickback voltages without a freewheeling path. Ensure the SPI master drives CS low during transactions and that the MISO line returns to high-impedance when CS is deasserted. The IN1-IN4 parallel inputs override the SPI register by pairs — verify your firmware clears/preserves SPI register state when transitioning to and from parallel mode to avoid unexpected channel changes.
合规信息
AEC-Q100 qualified per NCV prefix. RoHS compliant per onsemi product page. Halogen-free status not explicitly stated in retrieved data.
