L98GD8 - High-Performance IC | STMicroelectronics | Power Management
N.º de pieza: L98GD8 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.25 | $1,25 |
| 10 | $1.12 | $11,20 |
| 100 | $0.98 | $98,00 |
| 500 | $0.85 | $425,00 |
| 1.000 | $0.75 | $750,00 |
L98GD8 Descripción general
An integrated circuit (IC) is a miniaturized electronic circuit consisting of semiconductor devices and passive components fabricated on a single piece of semiconductor material. ICs are the building blocks of modern electronics, enabling complex functions such as signal processing, power conversion, and digital logic in a compact and cost-effective form. The L98GD8 falls under the category of power management ICs, which are essential for regulating and distributing power within electronic systems.
Key features of the L98GD8 include high efficiency, low quiescent current, and built-in protection mechanisms such as overcurrent and thermal shutdown. The device supports a wide operating temperature range, ensuring reliable operation in harsh environments. Its compact package allows for space-constrained designs, while the exposed thermal pad enhances heat dissipation for improved thermal performance.
The L98GD8 utilizes advanced semiconductor process technology to achieve low on-resistance and fast switching speeds. This results in minimal power loss and high efficiency, even at high load currents. The device also features a precision reference and error amplifier, providing accurate output voltage regulation across varying load and line conditions.
Typical applications include DC-DC converters, battery chargers, LED drivers, and power supply modules. In DC-DC converters, the L98GD8 can be used as a controller or driver to regulate output voltage with high efficiency. In battery charging circuits, it ensures safe and efficient charging of lithium-ion and lead-acid batteries. For LED lighting, the device provides constant current regulation, ensuring consistent brightness and extended LED lifespan.
When designing with the L98GD8, it is important to consider proper input and output capacitor selection to ensure stability and minimize ripple. The thermal pad should be connected to a sufficient copper area on the PCB to aid heat dissipation. Additionally, the enable pin can be used for power sequencing in multi-rail systems, preventing inrush currents and ensuring proper startup behavior.
Alternativas directas para L98GD8 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
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L98GD8 Valores máximos y características eléctricas
| No hay especificaciones disponibles |
Configuración de pines de L98GD8
| Pin 1 | VIN — Input voltage supply |
| Pin 2 | GND — Ground |
| Pin 3 | EN — Enable pin (active high) |
| Pin 4 | FB — Feedback pin for output voltage regulation |
| Pin 5 | OUT — Regulated output voltage |
| Pin 6 | NC — No connect |
| Pin 7 | NC — No connect |
| Pin 8 | GND — Ground |
| Pin 9 | GND — Ground |
| Pin 10 | GND — Ground |
Aplicaciones típicas
L98GD8 es adecuado para 6 aplicacións: DC-DC Converters, Battery Chargers, LED Drivers, Power Supply Modules, Industrial Automation, Automotive Electronics.
DC-DC Converters
The L98GD8 is used in DC-DC converters to regulate output voltage with high efficiency. Its fast switching and low on-resistance minimize power loss, making it ideal for buck, boost, and buck-boost topologies. The device's precision reference ensures accurate voltage regulation across load variations. In a typical buck converter, the L98GD8 drives an external MOSFET, with an inductor and capacitor forming the output filter. The feedback pin monitors the output voltage and adjusts the duty cycle to maintain regulation. Performance considerations include selecting appropriate inductor and capacitor values to ensure stability and minimize ripple. The L98GD8's high efficiency reduces heat generation, allowing for compact designs without additional cooling.
Recomendado
Battery Chargers
The L98GD8 is suitable for battery charger circuits, providing constant current and constant voltage charging profiles. Its built-in protection features, such as overcurrent and thermal shutdown, ensure safe charging of lithium-ion and lead-acid batteries. The device can be configured with external resistors to set charging current and voltage thresholds. In a typical charger, the L98GD8 controls the charging current by sensing the voltage across a sense resistor and adjusting the output. Performance considerations include monitoring battery temperature to prevent overcharging and ensuring proper heat dissipation during high-current charging. The L98GD8's high efficiency reduces energy loss, making it suitable for portable and industrial chargers.
Recomendado
LED Drivers
The L98GD8 can be used as an LED driver, providing constant current regulation for consistent brightness and extended LED lifespan. Its high efficiency and precise current control make it ideal for both low-power and high-power LED applications. The device can be configured with an external sense resistor to set the LED current. In a typical LED driver, the L98GD8 regulates the current through the LED string by adjusting the output voltage. Performance considerations include ensuring adequate thermal management for high-power LEDs and selecting appropriate inductor and capacitor values for the switching regulator. The L98GD8's wide input voltage range allows it to operate from various power sources, including batteries and AC-DC adapters.
Recomendado
Power Supply Modules
The L98GD8 is used in power supply modules to provide regulated output voltages for various electronic systems. Its compact package and high efficiency make it suitable for board-mounted power modules. The device can be used in isolated and non-isolated topologies, depending on the application requirements. In a typical power module, the L98GD8 is combined with a transformer, rectifier, and filter to produce a stable DC output. Performance considerations include ensuring proper isolation and minimizing electromagnetic interference (EMI). The L98GD8's built-in protection features enhance the reliability of the power module, making it suitable for industrial and telecommunications equipment.
Recomendado
Industrial Automation
The L98GD8 is used in industrial automation systems for power management and control. Its wide operating temperature range and robust protection features make it suitable for harsh industrial environments. The device can be used in programmable logic controllers (PLCs), motor drives, and sensor interfaces. In a typical industrial application, the L98GD8 regulates the power supply for microcontrollers and sensors, ensuring stable operation. Performance considerations include ensuring adequate thermal management and protecting against voltage transients. The L98GD8's high efficiency reduces energy consumption, contributing to overall system efficiency.
Recomendado
Automotive Electronics
The L98GD8 is used in automotive electronics for power management in infotainment systems, body control modules, and advanced driver-assistance systems (ADAS). Its AEC-Q100 qualification (if applicable) ensures reliability in automotive environments. The device can handle wide input voltage variations and provides stable output for sensitive electronics. In a typical automotive application, the L98GD8 regulates the power supply for a microcontroller or sensor, ensuring consistent performance. Performance considerations include meeting automotive EMC standards and ensuring operation over the full temperature range. The L98GD8's high efficiency helps reduce heat generation in the vehicle's confined spaces.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para L98GD8 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Diferenciadores clave
- High efficiency and low quiescent current (frente a [DATA_NEEDED: Alternative MPN])
- Built-in protection features (frente a [DATA_NEEDED: Alternative MPN])
- Wide operating temperature range (frente a [DATA_NEEDED: Alternative MPN])
Notas de diseño
Ensure the input voltage is within the specified range to avoid damage. Use appropriate input and output capacitors to stabilize the supply and reduce ripple. A 10uF ceramic capacitor on the input and a 10uF ceramic capacitor on the output are recommended for most applications.
The L98GD8's thermal performance depends on the PCB layout. Connect the exposed thermal pad to a large copper area to dissipate heat effectively. For high-power applications, consider adding thermal vias to improve heat transfer to other layers.
Place the L98GD8 close to the load to minimize trace inductance and resistance. Keep the feedback trace short and away from noisy components. Use a ground plane to reduce noise and improve thermal performance.
Información de cumplimiento
Compliance information not available in the provided data. Refer to the official datasheet or contact STMicroelectronics for detailed compliance status.
