SM72482MA-4 NSC [National Semiconductor], SM72482MA-4 Datasheet

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SM72482MA-4

Manufacturer Part Number
SM72482MA-4
Description
SolarMagic Dual 5A Compound Gate Driver
Manufacturer
NSC [National Semiconductor]
Datasheet
© 2011 National Semiconductor Corporation
SolarMagic Dual 5A Compound Gate Driver
General Description
The SM72482 Dual Gate Driver replaces industry standard
gate drivers with improved peak output current and efficiency.
Each “compound” output driver stage includes MOS and bipo-
lar transistors operating in parallel that together sink more
than 5A peak from capacitive loads. Combining the unique
characteristics of MOS and bipolar devices reduces drive cur-
rent variation with voltage and temperature. Under-voltage
lockout protection is also provided. The drivers can be oper-
ated in parallel with inputs and outputs connected to double
the drive current capability. This device is available in the
SOIC-8 package.
Features
Connection Diagram
Renewable Energy Grade
Independently drives two N-Channel MOSFETs
Compound CMOS and bipolar outputs reduce output
current variation
5A sink/3A source current capability
Two channels can be connected in parallel to double the
drive current
Independent inputs (TTL compatible)
Fast propagation times (25 ns typical)
301422
SOIC-8, eMSOP-8
SM72482
Typical Applications
Packages
Fast rise and fall times (14 ns/12 ns rise/fall with 2 nF load)
Available in dual non-inverting, dual inverting and
combination configurations
Supply rail under-voltage lockout protection (UVLO)
SM72482 UVLO configured to drive PFET through OUT_A
and NFET through OUT_B
Pin compatible with industry standard gate drivers
Synchronous Rectifier Gate Drivers
Switch-mode Power Supply Gate Driver
Solenoid and Motor Drivers
SOIC-8
Thermally Enhanced MSOP8–EP
30142201
www.national.com
May 9, 2011

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SM72482MA-4 Summary of contents

Page 1

SolarMagic Dual 5A Compound Gate Driver General Description The SM72482 Dual Gate Driver replaces industry standard gate drivers with improved peak output current and efficiency. Each “compound” output driver stage includes MOS and bipo- lar transistors operating in parallel that ...

Page 2

... Output for the ‘B’ side driver. 6 VCC Positive output supply 7 OUT_A. Output for the ‘A’ side driver Connect Configuration Table Part Number SM72482MY-1 SM72482MA-4 www.national.com NSC Package Drawing Package Marking MUY08A MUY08A MUY08A M08A M08A M08A Description TTL compatible thresholds. Connect to power ground. ...

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... No Load on OUT_A or OUT_B, unless otherwise specified. Conditions V − − IN_A = IN_B = 0V (SM72482MY-1) IN_A = V , IN_B = 0V CC (SM72482MA-4) IN_A=IN_B=V CC IN_A=IN_B=V (SM72482MY-1) CC IN_B=V (SM72482MA-4) CC IN_A=V (SM72482MA- −10 mA (Note 2) OUT (Note 2) OUT OUTA/OUTB = V /2, CC 200 ns Pulsed Current OUTA/OUTB = V /2, CC 200 ns Pulsed Current 3 Min Typ Max Units 3 ...

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Symbol Parameter SWITCHING CHARACTERISTICS td1 Propagation Delay Time Low to High, IN rising (IN to OUT) td2 Propagation Delay Time High to Low, IN falling (IN to OUT) t Rise Time r t Fall Time f LATCHUP PROTECTION AEC - ...

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Typical Performance Characteristics Supply Current vs Frequency Rise and Fall Time vs Supply Voltage Supply Current vs Capacitive Load 30142210 Rise and Fall Time vs Temperature 30142212 5 30142211 30142213 www.national.com ...

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Rise and Fall Time vs Capacitive Load Delay Time vs Temperature www.national.com 30142214 30142216 UVLO Thresholds and Hysteresis vs Temperature 6 Delay Time vs Supply Voltage 30142215 RDSON vs Supply Voltage 30142217 30142218 ...

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Block Diagram Block Diagram of SM72482 7 30142203 www.national.com ...

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... The SM72482MY –1 device hold both outputs in the low state in the under-voltage lockout (UVLO) condition. The SM72482MA–4 has an active high output state of OUT_A during UVLO. When VCC is less than the UVLO threshold voltage, OUT_A will be locked in the high state while OUT_B will be disabled in the low state. This configuration allows the SM72482MY – ...

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FIGURE 2. The schematic above shows a conceptual diagram of the SM72482 output and MOSFET load. Q1 and Q2 are the switches within the gate driver the gate resistance of G the external MOSFET, and C is the ...

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Physical Dimensions NOTES: UNLESS OTHERWISE SPECIFIED STANDARD LEAD FINISH TO BE 200 MICROINCHES/5.08 MICROMETERS MINIMUM LEAD/TIN(SOLDER) ON COPPER DIMENSION DOES NOT INCLUDE MOLD FLASH. 3. REFERENCE JEDEC REGISTRATION MS-012, VARIATION AA, DATED MAY 1990. www.national.com inches (millimeters) unless ...

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