L9698-TR - Automotive Ignition IGBT Driver | STMicroelectronics
MPN： L9698-TR ✓ 啟用中L9698-TR 概覽
An ignition IGBT driver is a specialized power management IC that controls the current through an ignition coil to generate the high-voltage spark required for combustion in gasoline engines. It sits between the engine control unit (ECU) and the ignition coil, converting low-power logic signals into high-current pulses. In the system hierarchy, it belongs to the category of power management ICs, specifically within automotive power drivers and ignition control modules.
Key features of the L9698-TR include a collector-emitter voltage rating of 400V, a collector current capability of 10A, and a low saturation voltage of 1.5V at 5A, ensuring efficient power transfer. The device integrates a Darlington configuration with a built-in collector-emitter clamp diode, protecting against inductive load transients. It also features an internal current sense output for diagnostic purposes, enabling real-time monitoring of ignition coil current.
The L9698-TR utilizes a bipolar Darlington architecture, which provides high current gain and simplifies the drive circuitry. The integrated clamp diode absorbs the energy stored in the ignition coil during the off-state, preventing voltage spikes that could damage the driver. The device operates over a junction temperature range of -40°C to +150°C, making it suitable for harsh automotive environments. Its PowerSO-10 package with exposed pad ensures efficient heat dissipation, critical for high-current operation.
Typical applications include direct ignition systems, distributorless ignition systems (DIS), and coil-on-plug (COP) configurations. The L9698-TR is also used in motorcycle and small engine ignition systems, as well as industrial ignition for gas turbines. Its high-voltage capability and robust protection make it ideal for demanding ignition applications.
When designing with the L9698-TR, ensure adequate PCB copper area for thermal management, as the device can dissipate significant power during ignition pulses. The input control signal should be properly conditioned to avoid false triggering, and the current sense output should be filtered to prevent noise interference. Proper layout of the high-current path is essential to minimize parasitic inductance.
直接替換替代品，適用於 L9698-TR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： L9698-TR （相同外形與佔位） — 差異在於 Package.
L9698
✅ 直接替換聯絡詢價
查看資料表 →MC33385
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
BIP373
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
L9698-TR 最大額定值與電氣特性
| Collector-Emitter Voltage (VCE) | 400 V |
| 集極電流 (Ic) | 10 A |
| Saturation Voltage (VCEsat) | 1.5 V at 5 A |
| 輸入電壓範圍 | 4.5 V to 5.5 V |
| Input Current | 1 mA |
| Current Sense Ratio | 1:1000 |
| Clamp Diode Voltage | 400 V |
| Power Dissipation | 2.5 W |
| 工作接面溫度 | -40°C to +150°C |
| Storage Temperature | -55°C to +150°C |
| 封裝 | PowerSO-10 |
| 安裝類型 | Surface Mount |
| MSL 等級 | 3 (168 hours) |
| RoHS 狀態 | Compliant |
| AEC-Q100 | Qualified |
L9698-TR 腳位配置
| 腳位 1 | IN — Input control signal from ECU |
| 腳位 2 | GND — Ground |
| 腳位 3 | SENSE — Current sense output |
| 腳位 4 | NC — No connection |
| 腳位 5 | NC — No connection |
| 腳位 6 | COLLECTOR — Collector of power stage |
| 腳位 7 | COLLECTOR — Collector of power stage |
| 腳位 8 | COLLECTOR — Collector of power stage |
| 腳位 9 | EMITTER — Emitter of power stage |
| 腳位 10 | EMITTER — Emitter of power stage |
典型應用
L9698-TR 適用於 6 應用s: Automotive Direct Ignition System, Distributorless Ignition System (DIS), Coil-on-Plug (COP) Ignition, Motorcycle Ignition System, Small Engine Ignition, Industrial Gas Turbine Ignition.
Automotive Direct Ignition System
The L9698-TR is used in direct ignition systems where each cylinder has its own ignition coil. Its 400V rating and 10A current capability ensure reliable spark generation. The integrated clamp diode protects against inductive voltage spikes, and the current sense output allows the ECU to monitor coil current for precise ignition timing. The device's AEC-Q100 qualification ensures reliability in harsh automotive environments.
推薦
Distributorless Ignition System (DIS)
In DIS, the L9698-TR drives ignition coils without a mechanical distributor. The device's high current capability and low saturation voltage minimize power loss, while the current sense output enables closed-loop control of spark energy. The PowerSO-10 package with exposed pad ensures efficient heat dissipation, critical for continuous operation in multi-coil systems.
推薦
Coil-on-Plug (COP) Ignition
The L9698-TR is ideal for COP systems where the ignition coil is mounted directly on the spark plug. Its compact PowerSO-10 package fits the limited space, and the integrated clamp diode protects against high-voltage transients. The device's wide operating temperature range (-40°C to +150°C) ensures reliable performance in engine compartments.
推薦
Motorcycle Ignition System
The L9698-TR is used in motorcycle ignition systems, providing reliable spark generation for small engines. Its 400V rating and 10A current capability are sufficient for motorcycle ignition coils, and the current sense output allows for diagnostic monitoring. The device's robust design ensures long-term reliability in two-wheeler applications.
推薦
Small Engine Ignition
The L9698-TR is suitable for small engine ignition systems, such as those in lawn mowers, generators, and pumps. Its high-voltage capability and low saturation voltage ensure efficient operation, while the integrated protection features enhance reliability. The device's compact package allows for easy integration into space-constrained designs.
推薦
Industrial Gas Turbine Ignition
The L9698-TR can be used in industrial gas turbine ignition systems, where high-voltage sparks are required to ignite fuel. Its 400V rating and 10A current capability make it suitable for driving large ignition coils. The device's wide operating temperature range and robust construction ensure reliable operation in industrial environments.
推薦
推薦產品摘要
工程參考資料，適用於 L9698-TR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | L9698 | MC33385 | BIP373 |
|---|---|---|---|---|
| Package | PowerSO-10 | PowerSO-10 | PowerSO-10 | PowerSO-10 |
| Brand | STMicroelectronics | STMicroelectronics | onsemi | Infineon |
| Collector-Emitter Voltage | 400 V | 400 V | 400 V | 400 V |
| Collector Current | 10 A | 10 A | 10 A | 10 A |
| Operating Temperature | -40°C to +150°C | -40°C to +150°C | -40°C to +150°C | -40°C to +150°C |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified |
主要差異化特點
- Integrated clamp diode (對比MC33385)
- Current sense output (對比BIP373)
- AEC-Q100 qualification (對比MC33385)
設計說明
The L9698-TR can dissipate up to 2.5W during ignition pulses. Ensure adequate PCB copper area and thermal vias to the exposed pad to keep the junction temperature within limits. A minimum of 1 square inch of copper is recommended for continuous operation at high duty cycles.
Place the input capacitor (0.1uF) close to the IN pin and the current sense resistor close to the SENSE pin to minimize noise. The high-current collector and emitter traces should be short and wide to reduce parasitic inductance and resistance.
Do not exceed the maximum collector-emitter voltage of 400V. Ensure the input signal is clean and free of glitches to prevent false triggering. The current sense output should be filtered with a small capacitor to avoid noise interference.
合規資訊
RoHS compliant and AEC-Q100 qualified per STMicroelectronics datasheet. Halogen-free status not specified in available data.
