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HV310

EOL

Status: End of Life

Features:

  • PWRGD = Active Low
  • -10V to -90V input voltage range
  • Few external components
  • 0.33mA typical standby supply current
  • Programmable over/under voltage limits with hysteresis
  • Programmable current limit
  • Active control during all phases of start-up
  • Programmable timing
  • 8-Lead SOIC package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

HV310, Hotswap Controller, Negative Supply controls the power supply connection during insertion of cards or modules into live backplanes. It may be used in traditional ‘negative 48V’ powered systems or for higher voltage busses up to negative 90V. Operation during the initial power up prevents turn-on glitches, and after complete charging of load capacitors (typically found in filters at the input of DC-DC converters) the HV310 issues a power good signal. This signal is typically used to enable the DC-DC converter. Once a PWRGD signal has been established, the device sleeps in a low power state, important for large systems with many individual hotswap cards or modules. An external power MOSFET is required as the pass element, plus a ramp capacitor, and resistors to establish current limiting and over and under voltage lockouts. There is no need for additional external snubber components. Features are programmable over voltage and under voltage detection of the input voltage which locks out the load connection if the bus (input) voltage is out of range. An internal voltage regulator creates a stable reference, and maintains accurate gate drive voltage. The unique control loop scheme provides full current control and limiting during start up.

Additional Features
  • PWRGD = Active Low
  • -10V to -90V input voltage range
  • Few external components
  • 0.33mA typical standby supply current
  • Programmable over/under voltage limits with hysteresis
  • Programmable current limit
  • Active control during all phases of start-up
  • Programmable timing
  • 8-Lead SOIC package

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
HV310LG-G
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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