MIC5021

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.

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
Parameter
Parameter Name Value Value
MOSFET Driver Type High Side High Side
Driver Type High-Side or Low Side Single High-Side or Low Side Single
Configuration Non-Inverting Non-Inverting
Peak Output Current (source/sink, A) 5600uA* 5600uA*
Output Resistance (source/sink, Ω) n/a n/a
Maximum Supply Voltage (V) 36 36
Propagation Delay (Td1/Td2, ns) 500/800 500/800
Rise/Fall Time (Tr/Tf, ns) 400ns/400ns 400ns/400ns
Capacitive Load Drive 1,500pF in 400 ns 1,500pF in 400 ns
Features 100kHz operation guaranteed over full temperature and operating voltage range 100kHz operation guaranteed over full temperature and operating voltage range
Documents
MIC5021 Data SheetData Sheets11/05/2015205KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC5021YM8SOIC-40C to +85CTUBE2.432.021.841.531.42
MIC5021YM-TR8SOIC-40C to +85CT/R2.432.021.841.531.42
MIC5021YN8PDIP-40C to +85CTUBE2.932.442.221.851.71
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC5021YN0.4867000.9000008PDIP.300inMatte Tine3
MIC5021YM0.0750000.1632658SOIC3.90mm(.150in)NiPdAue4
MIC5021YM-TR0.0750000.2500008SOIC3.90mm(.150in)NiPdAue4
MIC5021 Data Sheet MIC5021