X80073

Features: • Hot swap controller -Overvoltage and undervoltage protection -Undervoltage lockout for battery/redundant supplies -Electronic circuit breaker -Slew Rate for External FET Gate Control -Overcurrent Detection and Gate Shut-off -3X overcurrent limit on insertion -5s overcurrent filte...

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X80073 Picture
SeekIC No. : 004547429 Detail

X80073: Features: • Hot swap controller -Overvoltage and undervoltage protection -Undervoltage lockout for battery/redundant supplies -Electronic circuit breaker -Slew Rate for External FET Gate Contr...

floor Price/Ceiling Price

Part Number:
X80073
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: 2024/4/26

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Product Details

Description



Features:

• Hot swap controller
   -Overvoltage and undervoltage protection
   -Undervoltage lockout for battery/redundant supplies
   -Electronic circuit breaker
   -Slew Rate for External FET Gate Control
   -Overcurrent Detection and Gate Shut-off
   -3X overcurrent limit on insertion
   -5s overcurrent filter
   -Hardshort Retry and Indicator
   -Typically operates from -30V to -80V. Tolerates transients to -200V (limited by external components)
   -Positive Voltages (low side switching) from 12V to 60V
   -Soft Re-insertion
   -Soft extraction
• Battery backup mode
• Hardshort retry
• Overcurrent Filter
• Insertion Limits.
• Selectable Gate Current
• Voltage Regulator Output for Supervisory Functions
• Debounced manual reset input
• Available packages
   -20-lead Quad No-Lead Frame (QFN)



Application

• -48V Hot Swap Power Backplane/Distribution Central Office, Ethernet for VOIP
• Positive Voltage Hotswap 12V to 60V Applications (low side switching)
• Card Insertion Detection
• IP Phone Applications
• Databus Power Interfacing
• Custom Industrial Power Backplanes
• Distributed Power Systems



Pinout

  Connection Diagram


Specifications

Temperature under bias ..............................-65°C to +135°C
Storage temperature ...................................-65°C to +150°C
Voltage on given pin (Hot Side Functions):
Vov / uv pin ............................................................ 5.5V + VEE
SENSE pin .......................................................... 400mV + VEE
VEE pin ............................................................................ -80V
PWRGD pin............................................................... 7 V + VEE
GATE pin................................................................. VDD + VEE
FAR pin ..................................................................... 7V + VEE
MR pin .................................................................... 5.5V + VEE
BATT-ON pin............................................................ 5.5V + VEE

Voltage on given pin (Cold Side Functions):
IGQ1 and IGQ0 pins............................................... 5.5V + VEE
VDD pin ................................................................... 14V + VEE
D.C. output current ........................................................... 5mA
Lead temperature (soldering, 10 seconds).....................300°C



Description

The X80070 is a hot swap controller that allows a board to be safely inserted and removed from a live backplane  without turning off the main power supply.

During insertion, the gate of an external power MOSFET is clamped low to suppress contact bounce. The undervoltage/overvoltage circuits and the power-on reset circuitry suppress the gate turn on until the mechanical bounce has ended. The X80070 turns on the gate with a slew rate to limit the inrush current and incorporates an electronic circuit breaker set by a sense resistor. After the load is successfully charged, the PWRGD signal is asserted; indicating that the device is ready to power sequence the DC-DC power bricks.

At all times, the X80070 monitors for undervoltage, overvoltage,and overcurrent conditions. If any fault occurs, the gate will be immediately shut off and the PWRGD will be returned to the inactive state. The X80070 contains overvoltage, undervoltage and overcurrent detection, hardshort retry, gate control slew rate and power good control.




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