STPIC44L02PTR - 4-Channel Low-Side Pre-FET Driver | STMicroelectronics
N.º de pieza: STPIC44L02PTR ✓ ActivoSTPIC44L02PTR Descripción general
A pre-FET driver is a gate-driver interface that conditions logic commands before they reach an external power MOSFET. In the broader semiconductor hierarchy, this device is a gate driver, which is a specialized interface IC within the power-management and driver ecosystem. Its low-side architecture means the controlled MOSFETs are connected between a load and ground, making it useful where the driver must source current into MOSFET gate terminals rather than sink current from a high-side floating gate network.
The principal verified features are four independently addressed driver inputs, serial-in and parallel-in operation, cascading capability, independent shorted-load and short-to-battery protection functions, a 55 V internal inductive-load clamp, and VGS protection for external power FETs. The STPIC44L02PTR is identified as an automotive-temperature-grade component with a gull-wing SSOP package, making it suitable for demanding low-side switch-control systems where protected MOSFET gate drive is required.
The serial-in, parallel-out organization allows commands to be shifted into the device through a serial interface and then presented to the corresponding MOSFET gates in parallel. This arrangement can simplify control wiring in multi-channel systems and provides an efficient path for cascading devices when more than four channels are required. Parallel operation provides a direct route for independent channel control where the host controller can drive the input interface directly.
Typical uses include low-side MOSFET control in automotive body and comfort systems, relay and solenoid interfaces, inductive switching networks, industrial low-side switch stages, and protected external power-FET arrangements. The internal 55 V clamp is particularly relevant when an external MOSFET must tolerate an inductive event. Designers should still validate the complete power path, including load current, MOSFET avalanche capability, wiring inductance, and the exact protection behavior specified by the manufacturer.
Design decisions should begin with the external MOSFET because STPIC44L02PTR is a pre-FET driver rather than a power-stage device. Verify that the selected MOSFET gate charge, gate threshold, maximum VGS, and avalanche rating support the intended switching conditions. Place the driver and protected MOSFETs so switching-loop inductance is minimized, while preserving adequate trace area and thermal paths for the power stage.
This page consolidates the verified distributor and datasheet-search information for STPIC44L02PTR, identifies the confirmed protection features and package characteristics, and clearly separates documented data from parameters that still require confirmation from the complete manufacturer datasheet.
Alternativas directas para STPIC44L02PTR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
STPIC44L02
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STPIC44L02PTR Valores máximos y características eléctricas
| Product Type | Low-side pre-FET driver |
| Channel Count | 4 channels |
| Input Count | 4 inputs |
| Output Count | 0 outputs |
| Input Interface | Serial-in, parallel-out |
| Cascadable | Yes |
| Internal Inductive Load Clamp | 55 V |
| External FET Protection | VGS protection clamp |
| Shorted-Load Protection | Independent shorted-load protection |
| Short-to-Battery Protection | Independent short-to-battery protection |
| Encapsulado | 24-pin SSOP |
| Package Code | SSOP |
| Terminal Form | Gull wing |
| Temperature Grade | Automotive |
| Tipo de montaje | Surface mount |
Guía de configuración de pines de STPIC44L02PTR ssop
Configuración de pines para STPIC44L02PTR (encapsulado ssop). Este dispositivo de potencia presenta terminales de puerta, drenador y fuente. Para encapsulados no polarizados, consulte la hoja de datos del fabricante para conocer la orientación exacta del pin 1 y los detalles del footprint. Las aplicaciones habituales incluyen el diseño de fuentes de alimentación, el accionamiento de motores y la conmutación de cargas.
No hay datos detallados de patillaje disponibles para STPIC44L02PTR.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STPIC44L02PTR es adecuado para 6 aplicacións: Automotive Low-Side Switch Control, Solenoid and Relay Interface, Industrial Low-Side Power Stage, Cascaded Multi-Channel Control, Protected External Power-FET Interface, Battery-Powered Automotive Load Distribution.
Automotive Low-Side Switch Control
The STPIC44L02PTR fits low-side automotive switch stages because the verified device is a four-channel pre-FET driver with an internal 55 V inductive-load clamp and dedicated shorted-load and short-to-battery protection. It drives external power MOSFETs rather than supplying power itself, allowing the MOSFETs to be selected for the load current and switching loss. Its serial-in, parallel-out organization and cascading support can also simplify command distribution across multiple automotive channels. Production qualification still requires confirming the exact AEC-Q100 grade, temperature limits, propagation delays, and output-current ratings.
Recomendado
Solenoid and Relay Interface
STPIC44L02PTR is applicable to solenoid and relay interfaces where an external low-side power MOSFET must be driven reliably and protected from inductive voltage events. The documented internal 55 V inductive-load clamp helps limit the gate-side transient generated when current in an inductive load is interrupted, while VGS protection guards the external FET gate. The four-channel structure allows several independent loads to be commanded from one controller. Engineers must still check the MOSFET avalanche rating, load-current capability, driver current, and timing against the complete switching cycle.
Recomendado
Industrial Low-Side Power Stage
The STPIC44L02PTR can serve as the interface between industrial control logic and a bank of external low-side power MOSFETs. Four driver inputs reduce the number of direct gate connections required from a controller, while serial-in and parallel-in support permits different command architectures. Shorted-load and short-to-battery protection features add value in factory equipment where wiring faults and supply transients are possible. For a robust industrial implementation, verify the ambient-temperature range, isolation requirements, MOSFET selection logic, and behavior under sustained overload before releasing the design.
Recomendado
Cascaded Multi-Channel Control
STPIC44L02PTR is suitable for cascaded control because the verified datasheet description explicitly identifies the devices as cascadeable. A controller can serialize commands across multiple four-channel drivers and have the output commands presented in parallel to the corresponding external MOSFET gates. This architecture can reduce wiring complexity in systems with more than four low-side switches. Layout and timing remain critical: each cascaded stage must receive valid serialized data, and the propagation-delay, clock, and fault-response characteristics must be verified from the complete manufacturer datasheet before using long cascade chains.
Recomendado
Protected External Power-FET Interface
The STPIC44L02PTR is designed for applications that require a dedicated interface to external power MOSFETs rather than a monolithic power solution. Its VGS protection clamp provides a defined gate-side protection mechanism, and the 55 V internal inductive-load clamp supports controlled transient handling in switched inductive paths. The 24-pin SSOP package can fit compact control boards while the external FETs provide the required current capacity. This division of responsibilities also allows the driver and power stage to be optimized independently, subject to the MOSFET's VGS, charge, and avalanche constraints.
Recomendado
Battery-Powered Automotive Load Distribution
The STPIC44L02PTR is relevant to battery-powered vehicle systems where multiple ground-referenced loads are switched through external MOSFETs. Independent short-to-battery protection is a specifically verified feature and is important when wiring errors can expose a controlled channel to an unintended battery potential. Four channels and cascading provide a practical way to scale the number of controlled loads without requiring a separate driver package for every output. Validation should include the vehicle's transient environment, logic thresholds, quiescent behavior during sleep, and the operating-temperature grade documented for the exact ordering code.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STPIC44L02PTR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | STPIC44L02 |
|---|---|---|
| Package | 24-pin SSOP | 24-pin SSOP |
| Brand | STMicroelectronics | STMicroelectronics |
| Product Type | Low-side pre-FET driver | Low-side pre-FET driver |
| Channel Count | 4 channels | 4 channels |
| Input Count | 4 inputs | 4 inputs |
| Output Count | 0 outputs | 0 outputs |
| Input Interface | Serial-in, parallel-out | Serial-in, parallel-out |
| Inductive Load Clamp | 55 V internal clamp | 55 V internal clamp |
| External FET Protection | VGS protection clamp | VGS protection clamp |
| Fault Protection | Independent shorted-load and short-to-battery protection | Independent shorted-load and short-to-battery protection |
| Cascadable | Yes | Yes |
| Temperature Grade | Automotive | Automotive |
Diferenciadores clave
- Integrated protection for external low-side MOSFETs (frente a STPIC44L02)
- Flexible command distribution (frente a STPIC44L02)
- Dedicated external power-stage architecture (frente a STPIC44L02)
Notas de diseño
Treat STPIC44L02PTR as a gate-interface IC rather than a power-output stage. Select the external MOSFET using the load current, switching loss, gate charge, threshold voltage, maximum VGS, and avalanche requirements. The verified 55 V internal clamp is a protection feature for the external FET gate path, not permission to apply 55 V to the driver's supply. Confirm the exact clamp current, turn-off behavior, and supply limits from the manufacturer datasheet before finalizing the power network.
Place STPIC44L02PTR close to the gates of the power MOSFETs and minimize the total gate-loop area. Keep the high-current load path and drain switching node physically separate from the driver input and return paths. Use a short, low-impedance ground reference for every driven channel, and place any required input or bypass components directly at their associated pins. Because the supplied data does not include the complete pin table, do not assign PCB pads until it has been cross-checked against the manufacturer drawing.
Do not interpret cascading or serial control as a substitute for correct fault handling. Verify the serialized command protocol, clock timing, propagation delay, and behavior of unused channels for the complete cascade. Also do not assume the clamp alone guarantees MOSFET survival: check external FET avalanche energy, load inductance, clamp pulse duration, and wiring inductance. A production design should also define a safe state for every power stage when the serial link is interrupted or corrupted.
Información de cumplimiento
The verified distributor records identify an automotive temperature grade but do not explicitly state RoHS, REACH, AEC-Q100 qualification grade, lead-free status, halogen-free status, or conflict-minerals compliance. These fields remain unknown rather than being inferred from the manufacturer or package.
