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ASM811

Features: • New 4.0V threshold option• 9A supply current• Monitor 5V, 3.3V and 3V supplies• Manual reset input• 140ms min. reset pulse width• Guaranteed over temperature• Active-low reset valid with 1.1V supply (ASM811)• Small 4-pin SOT-143 package&#...

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SeekIC No. : 004289104 Detail

ASM811: Features: • New 4.0V threshold option• 9A supply current• Monitor 5V, 3.3V and 3V supplies• Manual reset input• 140ms min. reset pulse width• Guaranteed over temp...

ASM811 Data Sheet

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Part Number:
ASM811
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description



Features:

• New 4.0V threshold option
• 9A supply current
• Monitor 5V, 3.3V and 3V supplies
• Manual reset input
• 140ms min. reset pulse width
• Guaranteed over temperature
• Active-low reset valid with 1.1V supply (ASM811)
• Small 4-pin SOT-143 package
• No external components
• Power-supply transient-immune design


Application

• Computers and Controllers
• Embedded controllers
• Portable/Battery operated systems
• Intelligent instruments
• Wireless communication systems
• PDAs and handheld equipment
• Automotive systems
• Safety Systems


Pinout

Connection Diagram


Specifications

Parameter Min Max Units
Pin Terminal Voltage With Respect To Ground
VCC -0.3 6.0 V
RESET, RESET and MR -0.3 VCC + 0.3 V
Input current at VCC and MR   20 mA
Output current: RESET, RESET   20 mA
Rate of Rise at VCC   100 V/s
Power Dissipation (TA = 70)
Derate SOT-143 4mW/ above 70		   320 uW
Operating temperature range -40 105
Storage temperature range -65 160
Lead temperature (Soldering, 10 sec)   300



Description

The ASM811/ASM812 are cost effective low power supervisors designed to monitor voltage levels of 3.0V, 3.3V and 5.0V power supplies in low-power microprocessor (P), microcontroller (C) and digital systems. They provide excellent reliability by eliminating external components and adjustments.

A reset signal of ASM811 is issued if the power supply voltage drops below a preset reset threshold and is asserted for at least 140ms after the supply has risen above the reset threshold. The ASM811 has an active-low outputRESETthat is guaranteed to be in the correct state for VCC down to 1.1V. The ASM812 has an activehigh RESET output. The reset comparator is designed to ignore fast transients on VCC. A debounced manual reset input allows the user to manually reset the systems to bring them out of locked state.

Low power consumption makes the ASM811/ASM812 ideal for use in portable and battery operated equipment. That are available in a compact 4-pin SOT-143 package and thus use minimal board space.




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