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MIC5021

Status: In Production

Features:

  • +12V to +36V operation
  • 550ns rise/fall time driving 2,000pF
  • TTL compatible input with internal pull-down resistor
  • Overcurrent limit
  • Gate to source protection
  • Internal charge pump
  • 100kHz operation guaranteed over full temperature and operating voltage range
  • Compatible with current sensing MOSFETs
  • Current source drive reduces EMI
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MIC5021 high-side MOSFET driver is designed to operate at frequencies up to 100kHz (5kHz PWM for 2% to 100% duty cycle) and is an ideal choice for high speed applications such as motor control, SMPS (switch mode power supplies), and applications using IGBTs. The MIC5021 can also operate as a circuit breaker with or without automatic retry.

A rising or falling edge on the input results in a current source pulse or sink pulse on the gate output. This output current pulse can turn on a 2000pF MOSFET in approximately 550ns. The MIC5021 then supplies a limited current (<2mA), if necessary, to maintain the output state.

An overcurrent comparator with a trip voltage of 50mV makes the MIC5021 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 placed from the CT pin to ground may be used to control the current shutdown duty cycle (dead time) from 20% to <1%. A duty cycle from 20% to about 75% is possible with an optional pull-up resistor from CT to VDD.

The MIC5021 is available in 8-pin SOIC and plastic DIP packages. Other members of the MIC502x family include the MIC5020 low-side driver and the MIC5022 half-bridge driver with a cross-conduction interlock.

Additional Features
    • +12V to +36V operation
    • 550ns rise/fall time driving 2,000pF
    • TTL compatible input with internal pull-down resistor
    • Overcurrent limit
    • Gate to source protection
    • Internal charge pump
    • 100kHz operation guaranteed over full temperature and operating voltage range
    • Compatible with current sensing MOSFETs
    • Current source drive reduces EMI
Parametrics
Name
Value
MOSFET Driver Type
High Side
Driver Type
High-Side or Low Side Single
Configuration
Non-Inverting
Peak Output Current (source/sink, A)
5600uA*
Output Resistance (source/sink, Ω)
n/a
Maximum Supply Voltage (V)
36
Propagation Delay (Td1/Td2, ns)
500/800
Rise/Fall Time (Tr/Tf, ns)
400ns/400ns
Capacitive Load Drive
1,500pF in 400 ns
Features
100kHz operation guaranteed over full temperature and operating voltage range

Documents

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Data Sheets

  
1475KB

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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
MIC5021YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC5021YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC5021YN
0.486700
0.900000
8
PDIP
.300in
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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