Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MIC2310

Single-FET Constant Power-Limit Hot Swap Controller

Status: End of Life

Features:

  • Provides safe PCB insertion and removal from live +12V backplanes
  • Maintains constant power product at output
  • Power-limit product (VA) is externally programmable for various power applications
  • Programmable primary detector response time
  • User-programmable threshold settings via (2) digital inputs
  • Steady-state load current monitoring
  • Programmable inrush current slew-rate control
  • Latch off
  • Automatic retry
  • Programmable input undervoltage lockout and overvoltage protection
  • Open-drain ''Power-is-Good'' output
  • Open-drain ''I_FLT'' output signaling for all current faults
  • Shorted RSENSE and Damaged MOSFET detection (D-G and D-S shorts)
View More
Overview
Documents
Development Environment
Similar Devices
RoHS Information
Add To Cart

Device Overview

Summary

The MIC2310 is a single-channel, positive voltage, constant power-limit hot swap controller designed to provide for the safe insertion and removal of pc boards into fixed, rack, and pedestal mid- or back-planes using few external components. In addition, the MIC2310 employs a patent-pending, output load power-limiting technique where the current limit is inversely proportional to the output load voltage, such that the power product will not exceed the programmed power limit any longer than the externally programmed primary overcurrent period. The MIC2310 is ideally suited to address the power-limiting and timing requirements per the UL60950 specification for 240-VA applications. The MIC2310 incorporates high-side controller circuitry for an external N-channel MOSFET for which the MOSFET drain current rate of change is userprogrammable via an external capacitor. The MIC2310 employs dual-speed, dual-level overcurrent fault protection. The primary overcurrent detector response time is programmable via an external current sense resistor and the secondary overcurrent detector is 2-bit userprogrammable and exhibits a very fast (default) response to faults to ensure that the system power supplies are protected against catastrophic load current and shortcircuit faults. Additionally, an analog output (voltage) signal is provided that is proportional to the steady-state load current to allow monitoring of the system’s power. A PWRGD signal is provided to indicate a valid output voltage that can be used to enable a DC-DC power module.

Additional Features
    • Provides safe PCB insertion and removal from live +12V backplanes
    • Patent-pending, adaptive circuit breaker threshold contro
      • Maintains constant power product at output
      • Power-limit product (VA) is externally programmable for various power applications
    • Dual-level, dual-speed overcurrent detection/protection
      • Programmable primary detector response time
      • Fast (< 1 µs) secondary detector response time to short circuit conditions
        • User-programmable threshold settings via (2) digital inputs
    • Steady-state load current monitoring
    • Programmable inrush current slew-rate control
    • Electronic circuit breaker functions after fault
      • Latch off
      • Automatic retry
    • Programmable input undervoltage lockout and overvoltage protection
    • Fault reporting:
      • Open-drain 'Power-is-Good' output
      • Open-drain 'I_FLT' output signaling for all current faults
      • Shorted RSENSE and Damaged MOSFET detection (D-G and D-S shorts)
Parametrics
Name
Value
Product type
Low Voltage (<16V)
Latch off
Yes
Auto Retry
Yes
FAULT
Yes
# of PWRGD
1 Active High
Θja (C/W)
83.8

Documents

Jump to:

Development tools data is currently unavailable.

Similar Devices

Product
Price 5K
$4.37
$3.46
$4.80
$2.34
$2.74
$2.74
$4.47
$2.71
$12.04

Rohs data is currently unavailable.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy