HomedatasheetX40021SZIA

X40021SZIA Datasheet

Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch
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Description

DESCRIPTION
The X40020 combines power-on reset control, watch dog timer, supply voltage supervision, and secondary supervision, and manual reset, in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

FEATURES
• Dual voltage detection and reset assertion
   —Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V)
   —VTRIP2 programmable down to 0.9V
   —Adjust low voltage reset threshold voltages using special programming sequence
   —Reset signal valid to VCC = 1V
   —Monitor two voltages or detect power fail
• Battery switch backup
• VOUT: 5mA to 50mA from VCC; 250µA from VBATT
• Fault detection register
• Selectable power-on reset timeout (0.05s, 0.2s, 0.4s, 0.8s)
• Selectable watchdog timer interval(25ms, 200ms, 1.4s, off)
• Debounced manual reset input
• Low power CMOS
   —25µA typical standby current, watchdog on
   —6µA typical standby current, watchdog off
   —1µA battery current in backup mode
• 400kHz 2-wire interface
• 2.7V to 5.5V power supply operation
• Available packages
   —14-lead SOIC, TSSOP
• Monitor voltages: 5V to 1.6V
• Memory security
• Pb-free plus anneal available (RoHS compliant)

APPLICATIONS
• Communications equipment
   —Routers, hubs, switches
   —Disk arrays
• Industrial systems
   —Process control
   —Intelligent instrumentation
• Computer systems
   —Desktop computers
   —Network servers

 

Features

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Manufacturer information

INTERSIL

Intersil Corporation is a market leader in power management and precision analog technology for many of the most rigorous applications in the computing, consumer, and industrial markets. The company supplies a full range of power IC solutions including battery management, computing power, display power, regulators and controllers, and power modules; as well as precision analog components such as amplifiers and buffers, proximity and light sensors, data converters, timing products, optoelectronics and interface products. As a major supplier to the military and aerospace industries, Intersil’s product development methodologies reflect experience designing products to meet the highest standards for reliability and performance in challenging environments.


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