TPS3103E12 - 超低电源电流/电源电压监控电路

TPS3103E12是TI德州仪器公司的一款无产品，TPS3103E12是超低电源电流/电源电压监控电路，本站介绍了TPS3103E12的封装应用图解、特点和优点、功能等，并给出了与TPS3103E12相关的TI元器件型号供参考。

TPS3103E12 - 超低电源电流/电源电压监控电路 - 无 - 监控器和复位IC - 德州仪器

产品特性

Precision Supply Voltage Supervision Range: 0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V
High Trip-Point Accuracy: 0.75%
Supply Current of 1.2 μA (Typical)
RESET Defined With Input Voltages as Low as 0.4 V
Power-On Reset Generator With a Delay Time of 130 ms
Push/Pull or Open-Drain RESET Outputs
Package Temperature Range: –40°C to 85°C

产品应用

Applications Using Low-Power DSPs, Microcontrollers, or Microprocessors
Portable and Battery-Powered Equipment
Intelligent Instruments
Wireless Communication Systems
Industrial Equipment
Notebook and Desktop Computers

Typical Application Schematic

产品说明

The TPS310x and TPS311x families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.

During power-on, RESET is asserted low when the supply voltage (VDD) becomes higher than 0.4 V. Thereafter, the supervisory circuit monitors VDD and keeps the RESET output low as long as VDD remains below the threshold voltage (VIT–). To ensure proper system reset, after VDD surpasses the threshold voltage, an internal timer delays the transition of the RESET signal from low to high for the specified time. When VDD drops below VIT–, the output transitions low again.

All the devices of this family have a fixed-sense threshold voltage (VIT–) set by an internal voltage divider.

The TPS3103 and TPS3106 devices have an active-low, open-drain RESET output and either an integrated power-fail input (PFI) or SENSE input with corresponding outputs for monitoring other voltages. The TPS3110 has an active-low push/pull RESET and a watchdog timer to monitor the operation of microprocessors. All three devices have a manual reset pin that can be used to force the outputs low regardless of the sensed voltages.

The product spectrum is designed for supply voltages of 0.9 V up to 3.3 V. The circuits are available in 6-pin SOT-23 packages. The TPS31xx family is characterized for operation over a temperature range of –40°C to 85°C.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS3103xxx	SOT-23 (6)	2.90 mm × 1.60 mm
TPS3106xxx
TPS3110xxx

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