19-2419; Rev 4; 7/05
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.
Features
♦
Independent Source-and-Sink Outputs for
Controllable Rise and Fall Times
♦
+4V to +12.6V Single Power Supply
♦
7.6A/1.3A Peak Sink/Source Drive Current
♦
0.23Ω Open-Drain n-Channel Sink Output
♦
2Ω Open-Drain p-Channel Source Output
♦
12ns (typ) Propagation Delay
♦
Matching Delay Time Between Inverting and
Noninverting Inputs
♦
V
CC
/2 CMOS (MAX5048A)/TTL (MAX5048B) Logic
Inputs
♦
1.6V Input Hysteresis
♦
Up to +14V Logic Inputs (Regardless of V+
Voltage)
♦
Low Input Capacitance: 2.5pF (typ)
♦
-40°C to +125°C Operating Temperature Range
♦
6-Pin SOT23 and TDFN Packages
MAX5048
Ordering Information
PART
TEMP RANGE
PIN-
LOGIC TOP
PACKAGE INPUT MARK
V
CC
/2
ABEC
CMOS
TTL ABED
V
CC
/2
AKV
CMOS
TTL
AKW
Applications
Power MOSFET Switching
Switch-Mode Power Supplies
DC-DC Converters
Motor Control
Power-Supply Modules
MAX5048AAUT-T -40°C to +125°C 6 SOT23-6
MAX5048BAUT-T -40°C to +125°C 6 SOT23-6
MAX5048AATT-T -40°C to +125°C 6 TDFN-6
MAX5048BATT-T -40°C to +125°C 6 TDFN-6
Typical Operating Circuit
TOP VIEW
V+
V+
P_OUT
V+
1
Pin Configurations
6
IN+
MAX5048A
MAX5048B
IN+
N_OUT
N
P_OUT
2
MAX5048A
MAX5048B
5
IN-
IN-
GND
N_OUT
3
4
GND
SOT23
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
7.6A, 12ns, SOT23/TDFN, MOSFET Driver
MAX5048
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
Junction to Case Thermal Resistance,
θ
JC
(SOT23)....75°C/W
6-Pin TDFN (derate 18.2mW/°C above +70°C) .........1454mW
Junction to Case Thermal Resistance,
θ
JC
(TDFN) ....8.5°C/W
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
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.
ELECTRICAL CHARACTERISTICS
(V+ = +12V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER
POWER SUPPLY
V+ Operating Range
V+ Undervoltage Lockout
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+ = +10V,
I
N-OUT
= -100mA
V+ = +4.5V,
I
N-OUT
= -100mA
V+ = +10V,
I
N-OUT
= -100mA
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
3.3
0.85
6.85
7.6
T
A
= +25°C
T
A
= +125°C
T
A
= +25°C
T
A
= +125°C
2.00
2.85
2.20
3.10
3.00
4.30
3.30
4.70
Ω
0.26
0.43
0.28
0.47
0.34
0.51
0.36
0.55
10
1.0
20
Ω
V
µA
A
Ω
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
V
mV
ns
mA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
R
ON-N
Driver Output Resistance—
Pulling Down (MAX5048AATT/
MAX5048BATT)
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)
R
ON-N
V+ = 0 or floating, I
N-OUT
= -10mA, T
A
= +25°C
V+ = 0 or floating, I
N-OUT
= -10mA,
T
A
= +25°C
I
LK-N
I
PK-N
N_OUT = V+
C
L
= 10,000pF
V+ = +10V,
I
P-OUT
= 50mA
R
ON-P
V+ = +4.5V,
I
P-OUT
= 50mA
2
_______________________________________________________________________________________
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
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
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
SWITCHING CHARACTERISTICS FOR V+ = +4.5V
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 3)
Figure 1, C
L
= 1000pF (Note 3)
8
8
12
41
74
3.0
7.0
11.3
14
14
4.2
27
27
ns
ns
ns
ns
ns
t
F
t
D-ON
t
D-OFF
C
L
= 5000pF
C
L
= 10,000pF
Figure 1, C
L
= 1000pF (Note 3)
Figure 1, C
L
= 1000pF (Note 3)
7
7
V
IH
V
IL
V
HYS
MAX5048A
MAX5048B
MAX5048A
MAX5048B
MAX5048A
MAX5048B
V
IN_
= V+ or 0
1.6
0.68
0.001
2.5
8
45
82
3.2
7.5
12.5
12
12
2.5
25
25
ns
ns
ns
ns
ns
10
0.67 x V+
2.4
0.33 x V+
0.8
V
V
V
µA
pF
SYMBOL
V+ = +10V,
I
P-OUT
= 50mA
V+ = +4.5V,
I
P-OUT
= 50mA
P_OUT = 0
C
L
= 10,000pF
CONDITIONS
T
A
= +25°C
T
A
= +125°C
T
A
= +25°C
T
A
= +125°C
MIN
TYP
2.08
2.93
2.28
3.18
0.001
1.3
MAX
3.08
4.38
3.38
4.78
10
µA
A
Ω
UNITS
MAX5048
R
ON-P
I
LK-P
I
PK-P
SWITCHING CHARACTERISTICS FOR V+ = +10V
Note 2:
All DC specifications are 100% tested at T
A
= +25°C. Specifications over -40°C to +125°C are guaranteed by design.
Note 3:
Guaranteed by design, not production tested.
_______________________________________________________________________________________
3
7.6A, 12ns, SOT23/TDFN, MOSFET Driver
MAX5048
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
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)
4
_______________________________________________________________________________________
MAX5048 toc03
20
7.6A, 12ns, SOT23/TDFN, MOSFET Driver
MAX5048
Typical Operating Characteristics (continued)
(C
L
= 1000pF, T
A
= +25°C, unless otherwise noted.)
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +4V, C
L
= 5000pF)
MAX5048 toc10
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +4V, C
L
= 10,000pF)
MAX5048 toc11
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +4V, C
L
= 5000pF)
MAX5048 toc12
IN+
2V/div
IN+
2V/div
IN+
2V/div
OUTPUT
2V/div
OUTPUT
2V/div
OUTPUT
2V/div
20ns/div
20ns/div
20ns/div
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +4V, C
L
= 10,000pF)
MAX5048 toc13
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +12V, C
L
= 5000pF)
MAX5048 toc14
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +12V, C
L
= 10,000pF)
MAX5048 toc15
IN+
5V/div
IN+
2V/div
IN+
5V/div
OUTPUT
2V/div
OUTPUT
5V/div
OUTPUT
5V/div
20ns/div
20ns/div
20ns/div
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +12V, C
L
= 5000pF)
MAX5048 toc16
INPUT VOLTAGE vs. OUTPUT VOLTAGE
(V+ = +12V, C
L
= 10,000pF)
MAX5048 toc17
IN+
5V/div
IN+
5V/div
OUTPUT
5V/div
OUTPUT
5V/div
20ns/div
20ns/div
_______________________________________________________________________________________
5
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