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MIC1344

EOL

Status: End of Life

Features:

  • Two input, one output, power ORing switch
  • Input voltage operating range: 2.8V to 5.5V
  • Automatic and manual input selection modes
  • Four digital and two analog status outputs
  • Current blocking: output-to-input and input-to-input
  • Low on-resistance (70m&Omega typical)
  • Up to 3A current handling
  • Low standby channel current (11µA typical)
  • Separate current limiting and readback for each channel
  • Available in 12-pin, 2mm x 2mm, QFN (FTQFN) package
  • Thermal-shutdown protection
  • -40°C to 125°C junction temperature range
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC1344 is an advanced two input, one output, hot swappable, power multiplexer. It has both automatic and manual input selection (ENA and ENB) and four status outputs. In automatic mode, the MIC1344 will automatically connect the higher of two input voltages (INA or INB), to the output (OUT). In manual mode, either of the two inputs can be routed to the output, or both power inputs can be turned off so that multiple MIC1344s can be used for more than two power inputs. The MIC1344 has four digital open drain status outputs. The ASEL\ and BSEL\ outputs indicate which input is selected. The STAOK and STBOK outputs indicate the general health of the input channels. Specifically, these outputs will be inactive (high) if the channel has sufficient input voltage, the channel current is within acceptable limits, the die temperature is not too hot, and the channel has no reverse current detected. The current limit for each input channel of the MIC1344 can be individually set up to 3A, by two external current-limit set resistors (ILIMA and ILMIB). The current flowing in each of the channels can be read by measuring the voltage at these resistors.

Additional Features
    • Two input, one output, power ORing switch
    • Input voltage operating range: 2.8V to 5.5V
    • Automatic and manual input selection modes
    • Four digital and two analog status outputs
    • Current blocking: output-to-input and input-to-input
    • Low on-resistance (70m&Omega typical)
    • Up to 3A current handling
    • Low standby channel current (11µA typical)
    • Separate current limiting and readback for each channel
    • Available in 12-pin, 2mm x 2mm, QFN (FTQFN) package
    • Thermal-shutdown protection
    • -40°C to 125°C junction temperature range
Parametrics
Name
Value
Product Type
Dual High-Side/ORing Power Switches
Vin Min (V)
2.8
Vin Max (V)
5.5
Max SW Current (A)
3
RDS ON @5V (mΩ)
70
VEN (V)
1.5
Reverse Current Blocking
YES
Θja (C/W)
78

Documentation data is currently unavailable.


Development tools data is currently unavailable.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC1344YFT-TR
N/A
0.713898
12
UQFN
2x2x0.6mm
NiPDAu
e4
MIC1344YFT-T5
N/A
0.713898
12
UQFN
2x2x0.6mm
NiPDAu
e4
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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