L9965P-FN-TR - Single-Channel HV Pyro-Fuse Driver | STMicroelectronics
N.º de pieza: L9965P-FN-TR ✗ Fin de vida| Cant. | Precio unitario | Total |
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L9965P-FN-TR Descripción general
A pyro-fuse driver is a specialized battery-management IC that supplies controlled energy to a pyrotechnic actuator in a battery disconnect assembly. The L9965P belongs to the power-management hierarchy as a battery-management device and protects an automotive traction battery by commanding the physical interruption of the busbar. This mechanical energy path is distinct from an ordinary electronic MOSFET disconnect because the pyrotechnic mechanism provides a deliberate, high-current interruption function.
The manufacturer's datasheet identifies a dual-FET output stage consisting of high-side and low-side power MOSFETs. That arrangement supports the device's single-channel pyro-fuse-driver role. The L9965P-FN-TR designation also denotes the automotive single-channel family variant and its packaged orderable configuration, while the supplied distributor data identifies the physical package as 32-pin VFQFPN, 5x5 mm. Detailed electrical limits, timing, diagnostic thresholds, thermal data, and absolute maximum ratings must be taken from the official STMicroelectronics datasheet rather than inferred from distributor classifications.
Typical uses include high-voltage battery disconnects in electric and hybrid vehicles, crash-response systems, short-circuit isolation paths, and traction-battery safety architectures. In these systems, the IC is used as part of a larger pyrotechnic actuator circuit, and its control behavior is coordinated with vehicle diagnostics and crash-sensing logic. The battery disconnect must be evaluated as a safety-critical assembly, including the pyrofuse, wiring, connectors, current path, and vehicle shutdown strategy.
Designers should follow the manufacturer datasheet for external-component selection, timing, layout, decoupling, thermal management, and pin multiplexing. In particular, do not assume that a distributor category label fully defines the device's operating limits. This product page summarizes verified manufacturer and distributor information while marking unspecified parameters explicitly rather than guessing. It is intended to support engineering selection and sourcing, not to replace application-specific safety validation.
This page combines the official L9965P family description, distributor package information, application context, and design guidance that is usually distributed across separate search results. It is useful for engineers comparing a single-channel HV battery pyro-fuse driver, locating the manufacturer datasheet, and confirming the exact 32-pin package before beginning a hardware design.
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L9965P-FN
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L9965P-FN-TR Especificaciones
| Device Type | Automotive single-channel pyro-fuse driver |
| Product Function | High-voltage battery busbar disconnection |
| Channel Count | 1 channel |
| Output Stage | Dual-FET high-side and low-side powerMOS output stage |
| High-Side Output | High-side powerMOS |
| Low-Side Output | Low-side powerMOS |
| Encapsulado | 32-pin VFQFPN, 5x5 mm |
| Package Type | VFQFPN |
| Recuento de pines | 32 pins |
| Supplier Classification | Energy Storage Device PMIC |
| Manufacturer Description | Single channel pyro-switch driver for HV battery disconnect |
Guía de configuración de pines de L9965P-FN-TR vfqfpn
Configuración de pines para L9965P-FN-TR (encapsulado vfqfpn). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para L9965P-FN-TR.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
L9965P-FN-TR es adecuado para 6 aplicacións: High-Voltage Automotive Battery Disconnect, Electric Vehicle Crash Response, Short-Circuit Battery Isolation, Hybrid Vehicle Battery Protection, Energy Storage Device PMIC Subsystem, Industrial High-Voltage Energy Isolation.
High-Voltage Automotive Battery Disconnect
The L9965P-FN-TR fits a traction-battery safety architecture that must interrupt a high-voltage busbar after a crash or detected short circuit. Its single-channel pyro-fuse-driver function and dual high-side and low-side powerMOS output stage are intended to control the battery-break path rather than simply regulate a low-voltage rail. The verified data identifies the device as an automotive single-channel pyro-fuse driver, while the exact trigger timing and current ratings must be taken from the STMicroelectronics datasheet. Engineers should validate the complete actuator, current path, diagnostics, and vehicle shutdown sequence together.
Recomendado
Electric Vehicle Crash Response
The L9965P-FN-TR can serve as the controlled driver element in an electric-vehicle crash-response system. Its purpose is to command a pyrotechnic battery disconnect when the vehicle safety controller determines that rapid high-current isolation is required. The manufacturer's description specifically identifies car-crash battery interruption as the target use case. Because the supplied snippets do not state the exact diagnostic thresholds, trigger delay, or qualification grade, the complete crash logic and actuator load must be verified against the official datasheet.
Recomendado
Short-Circuit Battery Isolation
The L9965P-FN-TR is suitable for a short-circuit isolation stage in a high-voltage energy-storage system where the battery busbar must be opened rapidly. Its dual-FET high-side and low-side output arrangement is the key verified architectural feature, allowing the device to interface with the battery-break actuator according to the manufacturer's design guidance. The IC does not eliminate the need to size the pyrofuse, conductors, connectors, and protection hardware for the actual fault current. Confirm electrical limits and timing directly from the manufacturer datasheet before release.
Recomendado
Hybrid Vehicle Battery Protection
In a hybrid-vehicle energy architecture, the L9965P-FN-TR can support a controlled battery-disconnect function when a high-voltage fault or crash event requires physical interruption of the busbar. Its single-channel format makes it appropriate for systems designed around one pyro-fuse actuator, while the 32-pin VFQFPN package supports compact high-density power-control hardware. The application still requires vehicle-level ISO 26262 or other applicable safety analysis; the supplied data confirms the automotive function but does not provide the required system-safety evidence.
Recomendado
Energy Storage Device PMIC Subsystem
Distributor data classifies the L9965P-FN-TR as an energy-storage-device PMIC, making it relevant to high-voltage battery systems requiring a dedicated pyro-fuse-driver stage. The part is not a general cell-monitor or charger IC; its verified role is to control a battery busbar-disconnection mechanism through a dual-FET output. When designing the subsystem, separate the low-energy control path from the high-current battery path and verify creepage, clearance, actuator current, and thermal performance using the official package and application information.
Recomendado
Industrial High-Voltage Energy Isolation
The same single-channel pyro-fuse-driver architecture can be evaluated for industrial high-voltage energy-storage equipment where a controlled mechanical disconnect is preferred for fault isolation. The verified manufacturer description is automotive-specific, so industrial use would require a separate qualification and safety assessment rather than assuming automotive suitability. The 32-pin VFQFPN package and dual-FET output stage define the mechanical and electrical starting point, but the actuator, wiring, environmental range, and regulatory requirements must be established independently.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para L9965P-FN-TR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | L9965P-FN |
|---|---|---|
| Device Type | Automotive single-channel pyro-fuse driver | Battery-management variant; detailed function requires datasheet verification |
| Package | 32-pin VFQFPN, 5x5 mm | 32-pin VFQFPN, 5x5 mm |
| Brand | STMicroelectronics | STMicroelectronics |
| Supplier Category | Energy Storage Device PMIC | Battery Management |
| Automotive Positioning | Automotive single-channel pyro-switch driver | STMicroelectronics battery-management variant; grade not specified in supplied data |
Diferenciadores clave
- Dedicated high-voltage battery-break function (frente a L9965P-FN)
- Dual-FET output architecture (frente a L9965P-FN)
- Automotive battery-disconnect positioning (frente a L9965P-FN)
Notas de diseño
Treat the L9965P-FN-TR output stage and the external pyrotechnic actuator as a high-energy load. Use the manufacturer's high-side and low-side powerMOS application guidance to determine how much current is switched, how the actuator is connected, and which protection or diagnostic elements are required. The verified snippets do not provide actuator current limits or recommended external component values, so do not infer them from the 32-pin package rating.
The device is supplied in a 32-pin 5x5 mm VFQFPN package with an exposed-pad description in the distributor data. Provide copper and via geometry according to the official package drawing and thermal model, and calculate worst-case dissipation from the actual supply, actuator current, and conduction path. Because no thermal resistance or operating-temperature data is present in the supplied snippets, those values require direct verification from the manufacturer datasheet.
Place the device, its decoupling components, and the control or actuator interface components according to the official application circuit. Keep high-current busbar paths physically separated from sensitive control and diagnostic traces, while maintaining the required creepage and clearance for the maximum working voltage. The verified data does not specify those dimensions, so use the manufacturer package and layout guidance rather than generic PCB rules.
Do not treat L9965P-FN-TR as a generic load switch or MOSFET. Its purpose is to control a pyro-fuse or pyrotechnic battery-disconnect mechanism, and the vehicle safety logic must coordinate fault detection, trigger authorization, actuator behavior, and post-event isolation. Verify the exact FN package, exposed-pad connection, pin functions, timing, and qualification documents before schematic release or PCB fabrication.
Información de cumplimiento
The supplied snippets identify the device as automotive hardware but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Verify current declarations with STMicroelectronics before making compliance claims.
