Anterwell Technology Ltd.
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Supply Voltage: | +22V | Input Voltage: | VS + 0.3V To GND – 5V |
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Junction Temperature: | 150°C | Storage Temperature: | –65°C To +150°C |
Lead Temperature (10 Sec.): | 300°C | Peak Output Current: | 1.5A |
High Light: | small scale integrated circuits,integrated components |
MIC4426/4427/4428
Dual 1.5A-Peak Low-Side MOSFET Driver
General Description
The MIC4426/4427/4428 family are highly-reliable dual lowside MOSFET drivers fabricated on a BiCMOS/DMOS process for low power consumption and high efficiency. These drivers translate TTL or CMOS input logic levels to output voltage levels that swing within 25mV of the positive supply or ground. Comparable bipolar devices are capable of swinging only to within 1V of the supply. The MIC4426/7/8 is available in three configurations: dual inverting, dual noninverting, and one inverting plus one noninverting output. The MIC4426/4427/4428 are pin-compatible replacements for the MIC426/427/428 and MIC1426/1427/1428 with improved electrical performance and rugged design (Refer to the Device Replacement lists on the following page). They can withstand up to 500mA of reverse current (either polarity) without latching and up to 5V noise spikes (either polarity) on ground pins.
Primarily intended for driving power MOSFETs, MIC4426/7/8 drivers are suitable for driving other loads (capacitive, resistive, or inductive) which require low-impedance, high peak current, and fast switching time. Other applications include driving heavily loaded clock lines, coaxial cables, or piezoelectric transducers. The only load limitation is that total driver power dissipation must not exceed the limits of the package.
Features
• Bipolar/CMOS/DMOS construction
• Latch-up protection to >500mA reverse current
• 1.5A-peak output current
• 4.5V to 18V operating range
• Low quiescent supply current
4mA at logic 1 input
400µA at logic 0 input
• Switches 1000pF in 25ns
• Matched rise and rall times
• 7Ω output impedance
• < 40ns typical delay
• Logic-input threshold independent of supply voltage
• Logic-input protection to –5V
• 6pF typical equivalent input capacitance
• 25mV max. output offset from supply or ground
• Replaces MIC426/427/428 and MIC1426/1427/1428
• Dual inverting, dual noninverting, and inverting/ noninverting configurations
• ESD protection
Applications
• MOSFET driver
• Clock line driver
• Coax cable driver
• Piezoelectic transducer driver
Functional Diagram
Pin Configuration
Pin Description
Pin Number | Pin Name | Pin Function |
1,8 | NC | not internally connected |
2 | INA | Control Input A: TTL/CMOS compatible logic input. |
3 | GND | Ground |
4 | INB | Control Input B: TTL/CMOS compatible logic input. |
5 | OUTB | Output B: CMOS totem-pole output. |
6 | VS | Supply Input: +4.5V to +18V |
7 | OUTA | Output A: CMOS totem-pole output. |
Absolute Maximum Ratings (Note 1)
Supply Voltage (VS) ....................................................+22V
Input Voltage (VIN) ......................... VS + 0.3V to GND – 5V
Junction Temperature (TJ) ........................................ 150°C
Storage Temperature ............................... –65°C to +150°C
Lead Temperature (10 sec.)...................................... 300°C
ESD Rating, Note 3
Operating Ratings (Note 2)
Supply Voltage (VS) ..................................... +4.5V to +18V
Temperature Range (TA)
(A) ........................................................ –55°C to +125°C
(B) .......................................................... –40°C to +85°C
Package Thermal Resistance
PDIP θJA ............................................................130°C/W
PDIP θJC .............................................................42°C/W
SOIC θJA ...........................................................120°C/W
SOIC θJC .............................................................75°C/W
MSOP θJC ......................................................... 250°C/W
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