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TPS3106K33DBVR

Dual-channel voltage supervisor, 3.3V threshold, 1.2µA Iq, SOT-23-6

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Pieza del fabricante：

TPS3106K33DBVR

Paquete：

SOT-23-6 (2.9 x 1.6 mm)

Marca：
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Descripción

Productos

The TPS3106K33DBVR from Texas Instruments is a dual-channel ultra-low supply current voltage supervisor in a 6-pin SOT-23 package. It monitors two supply voltages with a fixed 3.3V threshold on VDD and a SENSE input comparing to 0.551V, providing separate open-drain reset outputs (RSTVDD and RSTSENSE). With only 1.2 µA typical supply current, 0.75% trip-point accuracy, and 130 ms power-on reset delay, it is designed for DSP and processor-based systems requiring precise voltage supervision.

Especificaciones

Number of Supplies Monitored 2
Threshold Voltage (VDD) 3.3V (2.941V trip point)
SENSE Threshold 0.551V
Reset Threshold Accuracy 0.75%
Supply Current (typ) 1.2 µA
Reset Timeout 130 ms
Output Type Active-low, Open-drain
Manual Reset Yes (MR pin)
Temporizador Watchdog No
Supply Voltage Range 0.9V to 3.6V
Temperatura de funcionamiento -40°C to +125°C
Paquete SOT-23-6 (2.9 x 1.6 mm)

Características

  • Dual-channel voltage monitoring with separate reset outputs
  • Ultra-low supply current: 1.2 µA typical
  • High trip-point accuracy: 0.75%
  • RESET valid with VDD as low as 0.4V
  • 130 ms power-on reset generator
  • Manual reset input (MR) pin
  • Open-drain output for wired-OR reset bus
  • Available in 6-pin SOT-23 package

Aplicaciones

  • DSP and microcontroller power supply supervision
  • Portable and battery-powered equipment
  • Intelligent instruments
  • Wireless communication systems
  • Industrial equipment

The TPS3106K33DBVR from Texas Instruments is an ultra-low supply current dual-channel voltage supervisor in a compact SOT-23-6 package. It provides precise monitoring of a 3.3V VDD rail and an auxiliary voltage through the SENSE input, with separate open-drain reset outputs for each channel. The device features 0.75% trip-point accuracy, 130 ms power-on reset delay, and manual reset capability. With a typical supply current of only 1.2 µA, it is ideal for battery-powered and low-power DSP/microcontroller systems.

The TPS3106K33DBVR operates as a dual-channel voltage monitor with two independent supervision paths. The VDD channel monitors the main supply voltage against a fixed 2.941V threshold (for the K33 variant). When VDD drops below this threshold, RSTVDD is asserted low. The SENSE channel compares an external voltage (divided down) against a 0.551V internal reference, asserting RSTSENSE when the sensed voltage falls below threshold. On power-up, RESET is asserted when VDD exceeds 0.4V and remains low until VDD surpasses the threshold and the 130 ms timeout expires. The MR (Manual Reset) pin can force both outputs low regardless of voltage conditions. The open-drain outputs require external pull-up resistors and allow wired-OR connection with other reset sources.

Pin Nombre Tipo Función
1 RSTVDD Salida Active-low reset output for VDD monitor (open-drain)
2 GND Potencia Suelo
3 MR Entrada Manual reset input, active low
4 SENTIDO Entrada Voltage sense input (compares to 0.551V)
5 RSTSENSE Salida Active-low reset output for SENSE monitor (open-drain)
6 VDD Potencia Supply voltage and VDD monitor input
  • DSP and microcontroller dual-voltage power supply supervision
  • Portable and battery-powered equipment requiring ultra-low Iq
  • Wireless communication systems with core and I/O rail monitoring
  • Industrial equipment with manual reset requirement
  • Notebook and desktop computers
Fabricante Número de pieza Paquete Notas
Texas Instruments TPS3103K33DBVR SOT-23-6 Single-channel with PFI/PFO instead of SENSE
Texas Instruments TPS3106K16DBVR SOT-23-6 1.6V VDD threshold variant
Texas Instruments TPS3110K33DBVR SOT-23-6 Push-pull output with watchdog timer
Maxim Integrated MAX809TR SOT-23-3 Single-channel 3.3V supervisor, simpler
Renesas ISL88001IEHNZ SOT-23-5 Adjustable threshold supervisor
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