MAX5048

7.6A, 12ns, SOT23/TDFN, MOSFET Driver

General Description

The MAX5048A/MAX5048B are high-speed MOSFET

drivers capable of sinking/sourcing 7.6A/1.3A peak cur-

rents. These devices take logic input signals and drive

a large external MOSFET. The MAX5048A/MAX5048B

have inverting and noninverting inputs that give the

user greater flexibility in controlling the MOSFET. They

feature two separate outputs working in complementary

mode, offering flexibility in controlling both turn-on and

turn-off switching speeds.

The MAX5048A/MAX5048B have internal logic circuitry,

which prevents shoot-through during output state

changes. The logic inputs are protected against volt-

age spikes up to +14V, regardless of V+ voltage.

Propagation delay time is minimized and matched

between the inverting and noninverting inputs. The

MAX5048A/MAX5048B have very fast switching times

combined with very short propagation delays (12ns

typ), making them ideal for high-frequency circuits.

The MAX5048A/MAX5048B operate from a +4V to +12.6V

single power supply and typically consume 0.95mA of

supply current. The MAX5048A has CMOS input logic

levels, while the MAX5048B has standard TTL input logic

levels. These devices are available in space-saving

6-pin SOT23 and TDFN packages.

o

+4V to +12.6V Single Power Supply

o

7.6A/1.3A Peak Sink/Source Drive Current

o

0.23Ω Open-Drain n-Channel Sink Output

o

2Ω Open-Drain p-Channel Source Output

o

12ns (typ) Propagation Delay

o

Matching Delay Time Between Inverting and

Noninverting Inputs

o

V

CC

/2 CMOS (MAX5048A)/TTL (MAX5048B) Logic

Inputs

o

1.6V Input Hysteresis

o

Up to +14V Logic Inputs (Regardless of V+

Voltage)

o

Low Input Capacitance: 2.5pF (typ)

o

-40°C to +125°C Operating Temperature Range

o

6-Pin SOT23 and TDFN Packages

Features

o

Independent Source-and-Sink Outputs for

Controllable Rise and Fall Times

Ordering Information

PART

TEMP RANGE

PIN-

LOGIC TOP

PACKAGE INPUT MARK

V

CC

/2

ABEC

CMOS

Applications

Power MOSFET Switching

Switch-Mode Power Supplies

DC-DC Converters

Motor Control

Power-Supply Modules

MAX5048AAUT-T -40°C to +125°C 6 SOT23

MAX5048BAUT-T -40°C to +125°C 6 SOT23

TTL ABED

V /2

MAX5048AATT-T -40°C to +125°C 6 TDFN-EP*

CC

AKV

CMOS

MAX5048BATT-T -40°C to +125°C 6 TDFN-EP* TTL AKW

Ordering Information continued at end of data sheet.

Typical Operating Circuit

TOP VIEW

V+

P_OUT

V+ 1

Pin Configurations

+

6

IN+

MAX5048A

MAX5048B

IN+

N_OUT

P_OUT 2

N

N_OUT 3

GND

MAX5048A

MAX5048B

5

IN-

4

GND

SOT23

Pin Configurations continued at end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-2419; Rev 5; 11/12

MAX5048

7.6A, 12ns, SOT23/TDFN, MOSFET Driver

ABSOLUTE MAXIMUM RATINGS

Voltages Referenced to GND

V+ ...........................................................................-0.3V to +13V

IN+, IN-...................................................................-0.3V to +14V

N_OUT, P_OUT ............................................-0.3V to (V+ + 0.3V)

N_OUT Continuous Output Current (Note 1) ....................390mA

P_OUT Continuous Output Current (Note 1).....................100mA

Continuous Power Dissipation* (T

A

= +70°C)

6-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW

6-Pin TDFN (derate 18.2mW/°C above +70°C) .........1454mW

Operating Temperature Range .........................-40°C to +125°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature ......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

Note 1:

Continuous output current is limited by the power dissipation of the package.

*As per JEDEC51 standard.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

PACKAGE THERMAL CHARACTERISTICS (Note 2)

SOT23

Junction-to-Case Thermal Resistance (θ

JC

)......................75°C/W

TDFN

Junction-to-Case Thermal Resistance (θ

JC

).......................8.5°C/W

Note 2:

Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer

board. For detailed information on package thermal considerations, refer to

www.maximintegrated.com/thermal-tutorial.

ELECTRICAL CHARACTERISTICS

(V+ = +12V, T

A

= -40°C to +125°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 3)

PARAMETER

POWER SUPPLY

V+ Operating Range

V+ Undervoltage Lockout

Hysteresis

V+ Undervoltage Lockout to

Output Delay Time

V+ Supply Current

n-CHANNEL OUTPUT

Driver Output Resistance—

Pulling Down (MAX5048AAUT/

MAX5048BAUT)

V

V+

= +10V,

I

N-OUT

= -100mA

V

V+

= +4.5V,

I

N-OUT

= -100mA

V

V+

= +10V,

I

N-OUT

= -100mA

V

V+

= +4.5V,

I

N-OUT

= -100mA

T

A

= +25°C

T

A

= +125°C

T

A

= +25°C

T

A

= +125°C

T

A

= +25°C

T

A

= +125°C

T

A

= +25°C

T

A

= +125°C

0.23

0.38

0.24

0.40

0.31

0.46

0.32

0.48

0.26

0.43

0.28

0.47

0.34

0.51

0.36

0.55

Ω

I+

V+ rising

IN+ = IN- = V+

V+

UVLO

V+ rising

4.0

3.25

3.6

400

300

0.95

1.5

12.6

4.00

V

mV

ns

mA

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

R

ON-N

Driver Output Resistance—

Pulling Down (MAX5048AATT/

MAX5048BATT)

R

ON-N

2

Maxim Integrated

MAX5048

7.6A, 12ns, SOT23/TDFN, MOSFET Driver

ELECTRICAL CHARACTERISTICS (continued)

(V+ = +12V, T

A

= -40°C to +125°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 3)

PARAMETER

Power-Off Pulldown Resistance

Power-Off Pulldown Clamp

Voltage

Output Leakage Current

Peak Output Current (Sinking)

p-CHANNEL OUTPUT

Driver Output Resistance—

Pulling Up (MAX5048AAUT/

MAX5048BAUT)

V

V+

= +10V,

I

P-OUT

= 50mA

R

ON-P

V

V+

= +4.5V,

I

P-OUT

= 50mA

V

V+

= +10V,

I

P-OUT

= 50mA

V

V+

= +4.5V,

I

P-OUT

= 50mA

P_OUT = 0

C

L

= 10,000pF

MAX5048A

MAX5048B

MAX5048A

MAX5048B

MAX5048A

MAX5048B

V

IN_

= V+ or 0

C

IN

C

L

= 1000pF

Rise Time

t

R

C

L

= 5000pF

C

L

= 10,000pF

C

L

= 1000pF

Fall Time

Turn-On Propagation Delay Time

Turn-Off Propagation Delay Time

Break-Before-Make Time

t

F

t

D-ON

t

D-OFF

C

L

= 5000pF

C

L

= 10,000pF

Figure 1, C

L

= 1000pF (Note 4)

Figure 1, C

L

= 1000pF (Note 4)

7

1.6

0.68

0.001

2.5

8

45

82

3.2

7.5

12.5

12

2.5

25

ns

10

0.67 x V+

2.4

0.33 x V+

0.8

T

A

= +25°C

T

A

= +125°C

T

A

= +25°C

T

A

= +125°C

T

A

= +25°C

T

A

= +125°C

T

A

= +25°C

T

A

= +125°C

2.00

2.85

2.20

3.10

2.08

2.93

2.28

3.18

0.001

1.3

3.00

4.30

3.30

4.70

3.08

4.38

3.38

4.78

10

µA

A

Ω

I

LK-N

I

PK-N

SYMBOL

CONDITIONS

V+ = 0 or unconnected, I

N-OUT

= -10mA,

T

A

= +25°C

V+ = 0 or unconnected, I

N-OUT

= -10mA,

T

A

= +25°C

N_OUT = V+

C

L

= 10,000pF

MIN

TYP

3.3

0.85

6.85

7.6

MAX

10

1.0

20

UNITS

Ω

V

µA

A

Driver Output Resistance—

Pulling Up (MAX5048AATT/

MAX5048BATT)

Output Leakage Current

Peak Output Current (Sourcing)

LOGIC INPUT

Logic 1 Input Voltage

Logic 0 Input Voltage

Logic-Input Hysteresis

Logic-Input Current

Input Capacitance

R

ON-P

I

LK-P

I

PK-P

V

IH

V

IL

V

HYS

V

µA

pF

SWITCHING CHARACTERISTICS FOR V+ = +10V

Maxim Integrated

3

MAX5048

7.6A, 12ns, SOT23/TDFN, MOSFET Driver

ELECTRICAL CHARACTERISTICS (continued)

(V+ = +12V, T

A

= -40°C to +125°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 2)

PARAMETER

SYMBOL

C

L

= 1000pF

Rise Time

t

R

C

L

= 5000pF

C

L

= 10,000pF

C

L

= 1000pF

Fall Time

Turn-On Propagation Delay Time

Turn-Off Propagation Delay Time

Break-Before-Make Time

t

F

t

D-ON

t

D-OFF

C

L

= 5000pF

C

L

= 10,000pF

Figure 1, C

L

= 1000pF (Note 4)

Figure 1, C

L

= 1000pF (Note 4)

8

CONDITIONS

MIN

TYP

12

41

74

3.0

7.0

11.3

14

4.2

27

ns

MAX

UNITS

SWITCHING CHARACTERISTICS FOR V+ = +4.5V

Note 3:

All DC specifications are 100% tested at T

A

= +25°C. Specifications over -40°C to +125°C are guaranteed by design.

Note 4:

Guaranteed by design, not production tested.

Typical Operating Characteristics

(C

L

= 1000pF, T

A

= +25°C, unless otherwise noted.)

PROPAGATION DELAY TIME, LOW-TO-HIGH

vs. SUPPLY VOLTAGE

MAX5048 toc02

RISE TIME vs. SUPPLY VOLTAGE

MAX5048 toc01

FALL TIME vs. SUPPLY VOLTAGE

6.0

T

A

= +125°C

5.5

5.0

FALL TIME (ns)

T

A

= +85°C

20

T

A

= +125°C

PROPAGATION DELAY (ns)

18

T

A

= +85°C

T

A

= +25°C

16

T

A

= 0°C

T

A

= -40°C

17

RISE TIME (ns)

T

A

= +125°C

T

A

= +85°C

T

A

= 0°C

T

A

= -40°C

14

T

A

= +25°C

4.5

4.0

3.5

3.0

2.5

T

A

= +25°C T

A

= 0°C

T

A

= -40°C

11

14

8

12

5

4

6

8

SUPPLY VOLTAGE (V)

10

12

2.0

4

6

8

SUPPLY VOLTAGE (V)

10

12

10

4

6

8

SUPPLY VOLTAGE (V)

10

12

4

Maxim Integrated

MAX5048 toc03

20

MAX5048

7.6A, 12ns, SOT23/TDFN, MOSFET Driver

Typical Operating Characteristics (continued)

(C

L

= 1000pF, T

A

= +25°C, unless otherwise noted.)

PROPAGATION DELAY TIME, HIGH-TO-LOW

vs. SUPPLY VOLTAGE

MAX5048 toc04

SUPPLY CURRENT vs. SUPPLY VOLTAGE

MAX5048 toc05

SUPPLY CURRENT vs. LOAD CAPACITANCE

3.5

SUPPLY CURRENT (mA)

3.0

2.5

2.0

1.5

1.0

0.5

0

V+ = +10V

f = 100kHz

DUTY CYCLE = 50%

MAX5048 toc06

20

T

A

= +125°C

T

A

= +85°C

16

T

A

= +25°C

14

T

A

= 0°C T

A

= -40°C

12

10

SUPPLY CURRENT (mA)

8

1MHz

6

500kHz

4

100kHz

2

0

75kHz

40kHz

DUTY CYCLE = 50%

V+ = +10V, C

L

= 0

4.0

PROPAGATION DELAY (ns)

18

12

10

4

6

8

SUPPLY VOLTAGE (V)

10

12

4

6

8

SUPPLY VOLTAGE (V)

10

12

0

400

800

1200

1600

2000

LOAD CAPACITANCE (pF)

SUPPLY CURRENT vs. TEMPERATURE

MAX5048 toc07

MAX5048A

INPUT THRESHOLD VOLTAGE

vs. SUPPLY VOLTAGE

MAX5048 toc08

MAX5048A

SUPPLY CURRENT vs. INPUT VOLTAGE

1.7

1.6

SUPPLY CURRENT (mA)

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

INPUT

HIGH-TO-LOW

INPUT

LOW-TO-HIGH

MAX5048 toc09

1.8

1.7

SUPPLY CURRENT (mA)

1.6

1.5

1.4

1.3

1.2

-50

INPUT THRESHOLD VOLTAGE (V)

V+ = +10V

f = 100kHz, C

L

= 0

DUTY CYCLE = 50%

8

7

6

5

4

3

2

1

0

FALLING

RISING

1.8

-25

0

25

50

75

100

125

4

6

8

SUPPLY VOLTAGE (V)

10

12

0

2

4

6

8

10

12

TEMPERATURE (°C)

INPUT VOLTAGE (V)

Maxim Integrated

5

参数名称	属性值
产品种类 Product Category	Gate Drivers
制造商 Manufacturer	Maxim(美信半导体)

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