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TPS386000RGPR

Quad voltage supervisor, 4 monitored rails, ±0.5% accuracy, watchdog, VQFN-16

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Pieza del fabricante：

TPS386000RGPR

Paquete：

VQFN-16 (4.0 × 4.0 × 0.8 mm)

Marca：
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Compromiso de calidad
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Descripción

Productos

The TPS386000RGPR is a quad voltage supervisor/monitor from Texas Instruments, packaged in a 16-pin VQFN (RGP) package. It provides independent monitoring of up to four voltage rails with factory-programmable threshold voltages. The device features manual reset, adjustable reset timeout, and watchdog timer functionality, making it ideal for multi-rail systems requiring precise supply monitoring.

Especificaciones

Función Quad Voltage Supervisor
Number of Supervised Rails 4
Tensión de alimentación 1.7V to 6.5V
Threshold Accuracy ±0.5% (typical)
Reset Timeout Adjustable (1.25ms to 10s)
Temporizador Watchdog Programmable
Manual Reset Yes
Paquete 16-pin VQFN (4.0 × 4.0 mm)
Temperatura de funcionamiento -40°C to +125°C

Características

  • Monitors up to four independent voltage rails simultaneously
  • Factory-programmable threshold voltages for precision monitoring
  • ±0.5% threshold accuracy over temperature
  • Programmable watchdog timer with window option
  • Adjustable reset timeout with external capacitor
  • Manual reset input with active-low MR pin

Aplicaciones

  • FPGA and CPLD power supply monitoring
  • Multi-rail DSP and processor systems
  • Control industrial y automatización
  • Telecommunications equipment
  • Medical electronics

The TPS386000 is a precision quad voltage supervisor designed for monitoring multiple voltage rails in complex systems. It provides independent monitoring of up to four supply voltages with factory-programmable thresholds, each with ±0.5% accuracy over temperature. The device integrates a programmable watchdog timer, manual reset input, and adjustable reset timeout period. Its compact VQFN package and flexible configuration make it an ideal choice for FPGA, processor, and multi-rail systems that require reliable power-on reset and undervoltage detection.

The TPS386000 continuously monitors up to four voltage rails through dedicated sense inputs. Each sense input is compared against a factory-set threshold voltage by a precision comparator. When any monitored rail drops below its threshold, the corresponding reset output asserts low. An internal voltage reference ensures ±0.5% threshold accuracy. The reset timeout period is set by an external capacitor on the CT pin, controlling the minimum duration the reset remains asserted after all rails return above threshold. The watchdog timer monitors a periodic strobe signal from the host processor; if the strobe is not received within the programmed window, the watchdog output asserts to reset the processor. The manual reset (MR) pin allows an external signal to trigger a reset independently of voltage conditions.

Pin Nombre Tipo Función
1 SENSE1 Entrada Voltage sense input for Rail 1
2 SENSE2 Entrada Voltage sense input for Rail 2
3 SENSE3 Entrada Voltage sense input for Rail 3
4 SENSE4 Entrada Voltage sense input for Rail 4
5 MR Entrada Manual reset — active low
6 GND Potencia Suelo
7 WDI Entrada Watchdog timer input
8 CT Salida Reset timeout capacitor connection
9 RESET Salida Active-low reset output
10 WDO Salida Watchdog output — active low
11 VDD Potencia Supply voltage
12-16 NC/EP — No connect / Exposed pad
  • Multi-rail FPGA power supply monitoring and sequencing
  • Processor supervisor with watchdog in industrial controllers
  • Telecom line card power monitoring
  • Medical equipment power-on reset generation
  • Automotive ECU multi-rail supervision
Fabricante Número de pieza Paquete Notas
TI TPS3828 SOT-23-6 Single rail supervisor with watchdog
ADI ADM1185 QSOP-16 Quad voltage monitor
Maxim MAX16008 TQFN-16 Quad supervisor, similar features
Renesas ISL88001 TDFN-10 Dual/triple supervisor
Microchip MCP131T SOT-23-5 Single voltage supervisor
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