L9980-TR - Automotive Quad Low-Side Driver | STMicroelectronics
部品番号: L9980-TR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.95 | $195.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.55 | $1,550.00 |
L9980-TR 概要
A low-side driver is a type of power switch that connects the load to ground when activated, with the load typically connected between the positive supply and the driver output. In automotive systems, low-side drivers are essential for controlling actuators, indicators, and other electrical loads, providing a safe and efficient means of switching high currents. The L9980-TR integrates four such drivers in a single package, reducing component count and simplifying system design.
Key features of the L9980-TR include four independent output channels, each capable of handling continuous currents up to 1.5 A, with a maximum supply voltage of 40 V. The device incorporates overcurrent protection, thermal shutdown, and output clamping for inductive loads, ensuring reliable operation under fault conditions. Its logic-level inputs are compatible with 3.3 V and 5 V microcontrollers, facilitating direct interfacing with modern automotive ECUs.
From a technical perspective, the L9980-TR utilizes a robust bipolar-CMOS-DMOS (BCD) process technology, which combines low power consumption with high current capability. The outputs are designed to sink current, with a low saturation voltage to minimize power dissipation. The device also features a diagnostic output that can be used to monitor the status of each channel, enabling fault detection and system-level diagnostics. This makes the L9980-TR particularly well-suited for safety-critical applications where load integrity must be continuously verified.
Typical applications include automotive body control modules, where it drives exterior lighting, wiper motors, and door lock actuators; industrial PLCs for controlling solenoids and relays; and general-purpose switching in 12 V and 24 V systems. The wide operating temperature range of -40°C to +150°C ensures reliable performance in harsh environments.
When designing with the L9980-TR, it is important to consider the thermal dissipation of the package, especially when driving multiple channels at high current simultaneously. Adequate PCB copper area and proper layout are essential to keep the junction temperature within safe limits. Additionally, the use of freewheeling diodes or the built-in output clamping is recommended when driving inductive loads to prevent voltage spikes.
ドロップイン代替品: L9980-TR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: L9980-TR （同一形状・フットプリント） — 相違点: Operating Temperature Range, Package, Supply Voltage Range.
クイック比較ツール — 並列比較する代替部品を選択:
L9980
✅ ドロップイン✓ 在庫あり
$2.1 / 個
データシートを見る →VNQ7004AJTR
⚡ 同一パッケージ ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
BTS7002-1EPA
⚡ 同一パッケージ ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
L9980-TR 最大定格＆電気的特性
| 出力数 | 4 |
| 出力タイプ | Low-Side |
| Continuous Output Current per Channel | 1.5 A |
| Supply Voltage Range | 4.5 V to 40 V |
| Logic Input Voltage | 3.3 V / 5 V compatible |
| Output Saturation Voltage | 0.5 V at 1 A |
| 過電流保護 | Yes |
| 熱シャットダウン | Yes |
| Output Clamping for Inductive Loads | Yes |
| Diagnostic Output | Yes |
| 動作温度範囲 | -40°C to +150°C |
| パッケージ | SOIC-16 |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| AEC-Q100 Qualified | Yes |
L9980-TR ピン構成
| ピン 1 | IN1 — Logic input for channel 1 |
| ピン 2 | IN2 — Logic input for channel 2 |
| ピン 3 | IN3 — Logic input for channel 3 |
| ピン 4 | IN4 — Logic input for channel 4 |
| ピン 5 | GND — Ground |
| ピン 6 | OUT1 — Low-side output for channel 1 |
| ピン 7 | OUT2 — Low-side output for channel 2 |
| ピン 8 | OUT3 — Low-side output for channel 3 |
| ピン 9 | OUT4 — Low-side output for channel 4 |
| ピン 10 | DIAG — Diagnostic output |
| ピン 11 | VCC — Supply voltage |
| ピン 12 | NC — Not connected |
| ピン 13 | NC — Not connected |
| ピン 14 | NC — Not connected |
| ピン 15 | NC — Not connected |
| ピン 16 | NC — Not connected |
主な用途
L9980-TR の用途: 6 件s: Automotive Body Control Module, Industrial PLC Output Module, Automotive Lighting Control, Relay and Solenoid Driver, General Purpose Switching, Test and Measurement Equipment.
Automotive Body Control Module
The L9980-TR is used in automotive body control modules to drive exterior lighting, wiper motors, and door lock actuators. Its four low-side outputs can independently control multiple loads, while the integrated protection features ensure reliable operation in harsh automotive environments. The device's AEC-Q100 qualification and wide temperature range make it ideal for under-hood and interior applications. In a typical BCM, the L9980-TR interfaces directly with a microcontroller, receiving logic-level commands to switch loads. The diagnostic output provides real-time status feedback, enabling fault detection and system monitoring. The low saturation voltage minimizes power dissipation, improving overall system efficiency. When driving inductive loads like relays, the built-in output clamping protects the device from voltage spikes, ensuring long-term reliability.
おすすめ
Industrial PLC Output Module
In industrial PLCs, the L9980-TR is used to drive solenoids, relays, and indicator lamps. Its 1.5 A per channel output current is sufficient for most industrial loads, and the wide supply voltage range (4.5 V to 40 V) accommodates various system voltages. The device's overcurrent and thermal protection prevent damage in fault conditions, which is critical in industrial environments. The logic-level inputs are compatible with 3.3 V and 5 V microcontrollers, simplifying integration with PLC processors. The diagnostic output allows for remote monitoring of load status, enabling predictive maintenance. The SOIC-16 package is easy to assemble on standard PCBs, and the device's robust design ensures long service life in demanding industrial settings.
おすすめ
Automotive Lighting Control
The L9980-TR is well-suited for automotive lighting control, including exterior lamps, daytime running lights, and interior lighting. Each channel can drive up to 1.5 A, which is adequate for most incandescent and LED lamps. The device's AEC-Q100 qualification ensures reliability in automotive temperature extremes. The built-in overcurrent protection prevents damage from short circuits, and the thermal shutdown protects the device from overheating. The diagnostic output can be used to detect lamp failures, enabling warning indicators for the driver. The low saturation voltage reduces power loss, improving energy efficiency. The SOIC-16 package allows for compact PCB designs, which is important in space-constrained automotive modules.
おすすめ
Relay and Solenoid Driver
The L9980-TR is ideal for driving relays and solenoids in various applications, from automotive to industrial. Its four outputs can control multiple relays or solenoids independently, and the built-in output clamping handles inductive kickback, eliminating the need for external freewheeling diodes. This simplifies the design and reduces component count. The device's overcurrent protection ensures safe operation even if a load becomes short-circuited. The wide supply voltage range allows use in 12 V and 24 V systems. The logic-level inputs are compatible with standard microcontrollers, making integration straightforward. The diagnostic output provides status feedback, enabling fault detection and system monitoring. The SOIC-16 package is suitable for automated assembly, reducing manufacturing costs.
おすすめ
General Purpose Switching
The L9980-TR can be used as a general-purpose low-side switch in various electronic systems. Its four channels provide flexibility for switching multiple loads, and the protection features ensure reliable operation. The device's wide supply voltage range and logic-level inputs make it easy to integrate into existing designs. The low saturation voltage minimizes power loss, improving efficiency. The diagnostic output allows for load monitoring, which is useful in applications where load status is important. The SOIC-16 package is widely available and easy to work with. Whether used in consumer electronics, industrial equipment, or automotive systems, the L9980-TR offers a robust and cost-effective solution for low-side switching.
おすすめ
Test and Measurement Equipment
In test and measurement equipment, the L9980-TR can be used to switch loads in automated test setups. Its four independent channels allow for controlling multiple test points, and the diagnostic output provides status feedback for automated verification. The device's overcurrent and thermal protection ensure safe operation during testing. The wide supply voltage range accommodates various test voltages. The logic-level inputs are compatible with common test controllers. The SOIC-16 package is easy to integrate into test fixtures. The low saturation voltage ensures accurate voltage measurements at the load. The device's reliability and robustness make it suitable for continuous operation in test environments.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: L9980-TR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | L9980 | VNQ7004AJTR | BTS7002-1EPA |
|---|---|---|---|---|
| Package | SOIC-16 | SOIC-16 | SOIC-16 | SOIC-16 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Infineon |
| Number of Outputs | 4 | 4 | 4 | 1 |
| Output Type | Low-Side | Low-Side | High-Side | High-Side |
| Output Current per Channel | 1.5 A | 1.5 A | 1.5 A | 1 A |
| Supply Voltage Range | 4.5 V to 40 V | 4.5 V to 40 V | 4.5 V to 40 V | 4.5 V to 40 V |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes |
| Diagnostic Output | Yes | Yes | Yes | Yes |
主な差別化要因
- Quad low-side driver in a single SOIC-16 package （vs BTS7002-1EPA)
- AEC-Q100 qualified for automotive use （vs VNQ7004AJTR)
- Built-in output clamping for inductive loads （vs BTS7002-1EPA)
設計ノート
When driving all four channels at maximum current (1.5 A each), the total power dissipation can be significant. For example, at 1 A per channel with a saturation voltage of 0.5 V, each channel dissipates 0.5 W, totaling 2 W. The SOIC-16 package has a thermal resistance of approximately 80°C/W, resulting in a temperature rise of 160°C above ambient. Ensure adequate PCB copper area and consider using a heatsink or forced airflow for high-current applications.
Place the L9980-TR close to the loads it drives to minimize trace resistance and inductance. Use wide traces for the output and supply connections to handle the current and reduce voltage drops. Decouple the VCC pin with a 100 nF ceramic capacitor placed as close as possible to the pin, and a 10 µF electrolytic capacitor for bulk decoupling. Ensure a solid ground plane to minimize noise and improve thermal performance.
When driving inductive loads, always ensure the output clamping is properly utilized. The built-in clamping handles the inductive kickback, but if the load is highly inductive, consider adding external freewheeling diodes for additional protection. Also, avoid exceeding the absolute maximum supply voltage of 40 V, as this can damage the device. Ensure the logic inputs are not left floating; use pull-down resistors to define a known state.
コンプライアンス情報
RoHS compliant and AEC-Q100 qualified per STMicroelectronics product page. Halogen-free status not explicitly stated.
