MIC4123/4/5 Dual 3A Peak Low-Side MOSFET Drivers Features General Description Reliable, Low-Power Bipolar/CMOS/DMOS The MIC4123/4124/4125 family are highly reliable Construction BiCMOS/DMOS buffer/driver/MOSFET drivers. They are higher output current versions of the Latch-Up Protected to >200 mA Reverse Current MIC4126/4127/4128, which are improved versions of Logic Input Withstands Swing to 5V the MIC4426/4427/4428. All three families are High 3A Peak Output Current pin-compatible. The MIC4123/4/5 drivers are capable Wide 4.5V to 20V Operating Range of providing reliable service in more demanding Drives 1800 pF Capacitance in 25 ns electrical environments than their predecessors. They will not latch under any conditions within their power Short <50 ns Typical Delay Time and voltage ratings. They can survive up to 5V of noise Delay Times Consistent within Supply Voltage spiking, of either polarity, on the ground pin. They can Change accept, without either damage or logic upset, up to half Matched Rise and Fall Times an amp of reverse current (either polarity) forced back TTL Logic Input Independent of Supply Voltage into their outputs. Low Equivalent 6 pF Input Capacitance The MIC4123/4/5 series drivers are easier to use, more Low Supply Current flexible in operation, and more forgiving than other - 3.5 mA with Logic-1 Input CMOS or bipolar drivers currently available. Their - 350 A with Logic-0 Input BiCMOS/DMOS construction dissipates minimum power and provides rail-to-rail voltage swings. Low 2.3 Typical Output Impedance Output Voltage Swings within 25 mV of Primarily intended for driving power MOSFETs, the Ground or V MIC4123/4/5 drivers are suitable for driving other loads S (capacitive, resistive, or inductive) that require 426/7/8-, 1426/7/8-, 4426/7/8-Compatible Pinout low-impedance, high peak currents, and fast switching Inverting, Non-Inverting, and Differential times. Heavily loaded clock lines, coaxial cables, or Configurations piezoelectric transducers are some examples. The Exposed Backside Pad Packaging Reduces Heat only known limitation on loading is that total power - ePad SOIC-8L ( = 58C/W) JA dissipated in the driver must be kept within the - 4 mm x 4 mm VDFN-8L ( = 45C/W) maximum power dissipation limits of the package. JA Package Types MIC4125 MIC4123 MIC4124 ePad SOIC-8 (ME) ePad SOIC-8 (ME) ePad SOIC-8 (ME) VDFN-8 (ML) VDFN-8 (ML) VDFN-8 (ML) (Top View) (Top View) (Top View) MIC4123 MIC4123 MIC4124 MIC4124 MIC4125 MIC4125 NC NC NC NC NC NC 1 8 1 8 1 8 2 A 7 2 A 7 2 A 7 INA 2 7 OUTA INA 2 7 OUTA INA 2 7 OUTA GND 3 6 V GND 3 6 V GND 3 6 V S S S 4 B 5 4 B 5 4 B 5 INB 4 5 OUTB INB 4 5 OUTB INB 4 5 OUTB Dual Dual Inverting + Inverting Noninverting Noninverting 2018 Microchip Technology Inc. DS20006035A-page 1MIC4123/4/5 Functional Block Diagram V S 0.6mA INVERTING 0.1mA OUTA INA 2k : NONINVERTING INVERTING 0.6mA 0.1mA OUTB INB 2k : NONINVERTING GND The function block diagram contains only four resistors, four capacitors, and 52 transistors. Be sure to ground any unused inputs. DS20006035A-page 2 2018 Microchip Technology Inc.