LMP8646
Limitador de corriente de alta velocidad y -2 V a 76 V con ganancia y ancho de banda configurables
LMP8646
- Provides Circuit Protection and Current Limiting
- Single Supply Operation
- –2-V to 76-V Common-Mode Voltage Range
- Variable Gain Set by External Resistor
- Adjustable Bandwidth Set by External Capacitor
- Buffered Output
- 3% Output Accuracy Achievable at VSENSE = 100 mV
- Key Specifications:
- Supply Voltage Range 2.7 V to 12 V
- Output Current (Source) 0 to 5 mA
- Gain Accuracy 2.0% (max)
- Transconductance 200 µA/V
- Offset ±1 mV (Maximum)
- Quiescent Current 380 µA
- Input Bias 12 µA (Typical)
- PSRR 85 dB
- CMRR 95 dB
- Temperature Range −40°C to 125°C
- 6-Pin SOT Package
The LMP8646 is a precision current limiter used to improve the current limit accuracy of any switching or linear regulator with an available feedback node.
The LMP8646 accepts input signals with a common-mode voltage ranging from –2 V to 76 V. It has a variable gain which is used to adjust the sense current. The gain is configured with a single external resistor, RG, providing a high level of flexibility and accuracy up to 2%. The adjustable bandwidth, which allows the device to be used with a variety of applications, is configurable with a single external capacitor in parallel with RG. In addition, the output is buffered in order to provide a low output impedance.
The LMP8646 is an ideal choice for industrial, automotive, telecommunications, and consumer applications where circuit protection and improved precision systems are required. The LMP8646 is available in a 6-pin SOT package and can operate at temperature range of −40°C to 125°C.
Documentación técnica
Tipo | Título | Fecha | ||
---|---|---|---|---|
* | Data sheet | LMP8646 Precision Current Limiter datasheet (Rev. B) | PDF | HTML | 08 dic 2014 |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 25 ene 2022 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 25 jun 2018 | ||
Application brief | Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers | 28 feb 2017 | ||
Application note | AN-2219 Precision Current Limiting with the LMP8646 and LP38501 (Rev. A) | 24 abr 2013 | ||
Application note | AN-2200 Precision Current Limiting with the LMP8646 and LMZ12003 (Rev. A) | 23 abr 2013 | ||
Application note | AN-2218 Precision Current Limiting with the LMP8646 and LM3102 (Rev. A) | 23 abr 2013 | ||
User guide | LMP8646EB User's Guide | 13 feb 2012 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
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LMP8646 TINA-TI Reference Design
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PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
TINA-TI — Programa de simulación analógica basado en SPICE
Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
SOT-23-THN (DDC) | 6 | Ultra Librarian |
Pedidos y calidad
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
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