Datasheet > UT01VS33L-XCC

UT01VS33L-XCC

更新时间： 2024-11-07 01:13:23

品牌	Logo	应用领域
艾法斯 - AEROFLEX		/
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描述
UT01VS33L Voltage Supervisor

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UT01VS33L-XCC 数据手册

Standard Products

UT01VS33L Voltage Supervisor

Data Sheet

July 28, 2014

www.aeroflex.com/voltsupv

FEATURES

INTRODUCTION

 3.15V to 3.6V Operating voltage range

The UT01VS33L’s function is to monitor vital supply and signal

voltages in microprocessor systems. It provides for safe reset

during power up, power down and brownout conditions by using

an internal precision voltage reference.

 Power supply (V ) monitor set by the internal voltage

reference at 3.08V

 Precision Input Voltage Monitor using an internal 0.6V

voltage reference

The UT01VS33L monitors activity at an independent watchdog

input by employing an internal timer and a watchdog output that

goes low if the input is not toggled within 1.6s. It provides for

precision voltage threshold detection on an independent voltage

input which could be used for battery or supply-low monitoring

 Watchdog Timer Circuit monitoring activity on WDI input

- Nominal timeout 1.6s

 RESET output responding to the V monitor and the

manual reset input MR

of a supply voltage other than V

- Nominal RESET pulse width 200ms

 RESET level valid for V >=1.2V

The UT01VS33L includes an activelow manual reset with a push-

pull output.

 Operating Temperature Range -55 C to +125 C

 Low Power, Typical 400uA

APPLICATIONS



Operational environment:

- Total dose: 300 krad(Si)

 Voltage Supervisor function for various systems including

microprocessors, microcontrollers, DSPs and FPGAs

 Critical battery and power supply monitoring

 Replacement of older discrete solutions to improve reliability,

accuracy and reduce complexity of the systems

- SEL Immune: <110 MeV-cm /mg @125 C

- SET Immune: <80 MeV-cm /mg



Packaging options:

- 8-lead dual-in-line flatpack

Standard Microelectronics Drawing 5962-11213

- QML Q and V

WDO

RESET &

DIGITAL CONTROL

RESET

‐

VDD

WDI TIMER

3.08 V

0.6 V

GND

PFI

VREF

WDI TRANSITION

DETECTOR

OSC

WDI

PFO

‐

Figure 1. UT01VS33L Functional Block Diagram

12 3 4 5 6 7...15

中文翻译

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