TPS40170
Controlador reductor PWM síncrono con entrada amplia de 4.5 V a 60 V
Se encuentra disponible una versión más nueva de este producto
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS40170
- New, similar products available:
- Wide input voltage range from 4.5 V to 60 V
- Reference voltage of 600 mV with 1% accuracy
- Programmable UVLO and hysteresis
- Voltage mode control with voltage feed forward
- Programmable frequency between 100 kHz and 600 kHz
- Bi-directional -frequency synchronization with primary and secondary option
- Low-side FET sensing overcurrent protection and high-side FET sensing short-circuit protection with integrated thermal compensation
- Programmable closed loop soft-start
- Supports pre-biased outputs
- Thermal shutdown at 165°C with hysteresis
- Voltage tracking
- Power good
- ENABLE with 1-µA low current shutdown
- LDO output of 8.0 V and 3.3 V
- Integrated Bootstrap Diode
- 20-Pin 3.5 mm × 4.5 mm VQFN (RGY) package
- Create a Custom Design with WEBENCH Tools
TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60 V and is optimized for high-power density, high-reliability DC-DC converter applications. The controller implements voltage-mode control with input voltage feed-forward compensation that enables instant response to input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz.
The TPS40170 has a complete set of system protection and monitoring features such as programmable undervoltage lockout (UVLO), programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1 µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output voltage tracking and adaptive dead-time control.
TPS40170 provides accurate output voltage regulation through 1% ensured accuracy. Additionally, the controller implements a novel scheme of bi-directional synchronization with one controller acting as the primary and other downstream controllers acting as secondaries synchronized to the primary in-phase or 180° out-of-phase. Secondary controllers can be synchronized to an external clock within ±30% of the free-running switching frequency.
New products (LM5145 and LM5146) offer reduced BOM cost, higher efficiency, and reduced design size among many other features.
Documentación técnica
Diseño y desarrollo
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Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
---|---|---|
VQFN (RGY) | 20 | 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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