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MIC5020

Current-Sensing Low Side MOSFET Driver

Status: In Production

Features:

  • 11V to 50V operation
  • 175ns rise/fall time driving 2000pF
  • TTL compatible input with internal pull-down resistor
  • Overcurrent limit
  • Fault output indication
  • Gate to source protection
  • Compatible with current sensing MOSFETs
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC5020 low-side MOSFET driver is designed to operate at frequencies greater than 100kHz (5kHz PWM for 2% to 100% duty cycle) and is an ideal choice for high-speed applications such as motor control, switch mode power supplies (SMPS), and applications using IGBTs. The MIC5020 can also operate as a circuit breaker with or without automatic retry. The MIC5020's maximum supply voltage lends itself to control applications using up to 50V. The MIC5020 can control MOSFETs that switch voltages greater than 50V.A rising or falling edge on the input results in a current source or sink pulse on the gate output. This output current pulse can turn on or off a 2000pF MOSFET in approximately 175ns. The MIC5020 then supplies a limited current (<2mA), if necessary, to maintain the output state.An overcurrent comparator with a trip voltage of 50mV makes the MIC5020 ideal for use with a current sensing MOSFET. An external low value resistor may be used instead of a sensing MOSFET for more precise overcurrent control. An optional external capacitor connected to the CT pin may be used to control the current shutdown duty cycle from 20% to <1%. A duty cycle from 20% to about 75% is possible with an optional pull-up resistor from CT to VDD. An open collector output provides a fault indication when the sense inputs are tripped.The MIC5020 is available in 8-pin SOIC package.Other members of the MIC502x series include the MIC5021 high-side driver and the MIC5022 half-bridge driver with a cross-conduction interlock.

Additional Features
    • 11V to 50V operation
    • 175ns rise/fall time driving 2000pF
    • TTL compatible input with internal pull-down resistor
    • Overcurrent limit
    • Fault output indication
    • Gate to source protection
    • Compatible with current sensing MOSFETs
Parametrics
Name
Value
MOSFET Driver Type
Low Side
Driver Type
Single
Configuration
Non-Inverting
Peak Output Current (source/sink, A)
0.002
Output Resistance (source/sink, Ω)
n/a
Maximum Supply Voltage (V)
50
Propagation Delay (Td1/Td2, ns)
400/900
Rise/Fall Time (Tr/Tf, ns)
175/175
Capacitive Load Drive
400ns/900ns into 1,500pF
Features
Current Sensing Low Side Driver

Documents

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Data Sheets

  
183KB

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC5020YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC5020YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
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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