LM5068MM-2/NOPB by Texas Instruments | Hot Swap Controller | Avnet ASIA

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LM5068MM-2/NOPB

Texas Instruments

Hot Swap Controller 1-CH -90V 8-Pin MSOP T/R

Manufacturer Part #: LM5068MM-2/NOPB

Alternate Part #: LM5068MM-2/NOPB


legend RoHS Compliant

Descriptions

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Information

The LM5068 hot-swap controller provides intelligent control of power supply connections during the insertion and removal of circuit cards powered by live system backplanes.

The LM5068 provides both in-rush current control and short-circuit protection functions, and limits power supply transients in the backplane caused by the insertion of additional circuit cards. The LM5068 controls the external N-Channel MOSFET to provide programmable load current limiting and circuit breaker functions using a single external current sense resistor. The LM5068 issues a power good (PWRGD) signal at the conclusion of a successful power-on sequence. Input over-voltage or under -voltage fault conditions will cancel the PWRGD indication.

The LM5068-1 and -2 indicate power-good as an open-drain active HIGH PWRGD state. The LM5068-3 and -4 indicate power-good as an open-drain active LOW PWRGD state. The LM5068-1 and -3 latch off after a fault condition is detected while the LM5068-2 and -4 continuously re-try at intervals set by a programmable timer.

The LM5068 is available in a VSSOP-8 package.

Key Features

  • Safe Module Insertion and Removal from Live Backplanes
  • In-Rush Current Limiting for Safe Board Insertion into Live Backplanes
  • Fast Response to Over-Current Fault Conditions with Active Current Limiting
  • -10V to -90V Input Range
  • Programmable Under-Voltage/Over-Voltage Shutdown Protection with Adjustable Hysteresis
  • Programmable Multi-Function Timer for Board Insertion De-Bounce Delay
  • Fault Timer Avoids Nuisance Trips Caused by Short Duration Load Transients
  • Active Gate Clamping During Initial Power Application
  • Available in both Latched Fault and Automatic Re-Try Versions
  • Available with either Active HIGH or Active LOW Power Good Flag

Technical Attributes

Description
Value
Find similar Parts
Minimum Operating Supply Voltage
-10 V
External Sense Resistor
Yes
Fault Management
Auto-Retry
Max Processing Temp
260
MSL Level
1
Number of Channels
1
External FET
N-Channel
Maximum Supply Current
0.82 mA
Lead Finish
Matte Tin
Type
Negative Voltage
PGOOD Output Logic
Active High
Mounting
Surface Mount
Pin Count
8
Typical Circuit Breaker Threshold Voltage
50 mV
Operating Temperature
-40 to 105 °C
Maximum Operating Supply Voltage
-90 V
Product Dimensions
3 x 3 x 0.86 mm
Supplier Package
MSOP

ECCN / UNSPSC

Description
Value
ECCN:
EAR99
SCHEDULE B:
8542390000"
UNSPSC:
32101600
UNSPSC VERSION:
V15.1101

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