Document
MAQ4123/MAQ4124/MAQ4125
Automotive AEC-Q100 Qualified Dual 3A Peak Low-Side MOSFET Driver
Bipolar/CMOS/DMOS Process
General Description
The MAQ4123/MAQ4124/MAQ4125 are a family of dual 3A buffer/MOSFET drivers intended for driving power MOSFETs, IGBTs and other heavy loads (capacitive, resistive or inductive) which require low-impedance, high peak currents and fast switching times. They are available in inverting, non-inverting and complementary configurations.
The MAQ4123/MAQ4124/MAQ4125 operate from a 4.5V to 20V supply, feature an output resistance of 2.3Ω, sink or source 3A of peak current, and switch an 1800pF capacitive load in 10ns with typical propagation delay times of 50ns.
The MAQ4123/MAQ4124/MAQ4125 feature TTL or CMOS compatible inputs with 400mV of hysteresis to provide noise immunity. The inputs can withstand negative voltage swings of 5V and are latch-up protected to withstand 200mA of reverse current.
The MAQ4123/MAQ4124/MAQ4125 are rated for the −40°C to +125°C operating temperature range, have been AEC-Q100 qualified for automotive applications, and are available in the ePad SOIC-8 package for improved power dissipation and thermal performance required by automotive applications.
Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com.
Features
• Automotive AEC-Q100 Qualified • High ±3A peak output current • Wide 4.5V to 20V supply voltage range • Low 2.3Ω output resistance • Matched rise and fall times • Fast 10ns rise/fall times with 1800pF capacitive load • Low propagation delay time of 50ns (typical) • TTL/CMOS logic inputs independent of supply voltage • Latch-up protected to 200mA reverse current • Logic input withstands swing to −5V • Low equivalent 6pF input capacitance • Output voltage swings within 25mV of ground or VS • Low supply current
− 2.0mA with logic-1 input (maximum over temperature)
− 300μA with logic-0 input (maximum over temperature)
• ‘426/7/8-, ‘1426/7/8-, ‘4426/7/8 industry standard pin out
• Inverting, non-inverting, and differential configurations • −40°C to +125°C temperature range • Exposed backside pad (ePad) packaging for improved
power dissipation
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
July 2011
M9999-072511-A
Micrel, Inc.
Ordering Information
Part Number MAQ4123YME MAQ4124YME MAQ4125YME
Configuration Dual Inverting Dual Non-Inverting Inverting + Non-Inverting
Junction Temperature Range –40°C to +125°C –40°C to +125°C –40°C to +125°C
MAQ4123/MAQ4124/MAQ4125
Lead Finish Pb-Free Pb-Free Pb-Free
Package ePad 8-Pin SOIC ePad 8-Pin SOIC ePad 8-Pin SOIC
Pin Configuration
ePad SOIC-8 (ME)
ePad SOIC (ME)
ePad SOIC-8 (ME)
Pin Description
Pin Number 1 2 3 4 5 6 7 8
Pin Name NC INA GND INB
OUTB VS
OUTA NC
ePad
EP
Pin Function Not connected (may be left floating). Input. Control input for the OUTA driver. Ground. Return for both output drive sections and ground reference for both input signals. Input. Control input for the OUTB driver. Output Drive. OUTB high-current drive pin.
Supply. +4.5V to +20V. Provides power to both driver outputs and internal control circuitry. Output Drive. OUTA high-current driver pin. Not connected (may be left floating). Exposed Pad (ePad). Must make a full connection to the GND plane to maximize thermal performance of the package.
July 2011
2 M9999-072511-A
Micrel, Inc.
Functional Diagram
MAQ4123/MAQ4124/MAQ4125
July 2011
3 M9999-072511-A
Micrel, Inc.
MAQ4123/MAQ4124/MAQ4125
Absolute Maximum Ratings(1)
Supply Voltage (VS)..................................................... +24V Input Voltage (VIN) .......................... VS + 0.3V to GND – 5V Maximum Junction Temperature (TJ)......................... 150°C Storage Temperature (Ts)........................... –65°C to 150°C Lead Temperature (soldering, 10s)............................ 260°C ESD HBM Rating(3)......................................................... 2kV ESD MM Rating(3).........................................................200V
Operating Ratings(2)
Supply Voltage (VS)....................................... +4.5V to +20V Junction Temperature (TJ) ........................ –40°C to +125°C Package Thermal Resistance
ePad SOIC-8 (θJA) .............................................41°C/W ePad SOIC-8(θJC)…………………...…………14.7°C/W
Electrical Characteristics(4)
4.5V ≤ VS ≤ 20V; TA = +25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted. Input voltage slew rate >2.5V/µs.
Symbol Parameter
Condition
Min.
Typ. Max.
Input
VIH Logic 1 Input Voltage VIL Logic 0 Input Voltage
2.4 1.6 1.45 0.8
IIN Input Current
0V ≤ VIN ≤ VS
–1 1 –10 10
Output
VOH High Output Voltage
IOUT = 100μA
VOL Low Output Voltage
IOUT = –100μA
Output Resistance HI State
IOUT = 10mA, VS = 20V
RO
Output Resistance LO State
IOUT = 10mA, VS = 20V IOUT = 10mA, VS = 20V
IOUT = 10mA, VS = 20V
IPK Peak Output Current
VS – 0.025
0.025
.