19-2419; Rev 4; 7/05
7.6A, 12ns, SOT23/TDFN, MOSFET Driver
Features
The MAX5048A/MAX5048B are high-speed MOSFET
drivers capable of sinking/sourcing 7.6A/1.3A peak currents. 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 voltage 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.
♦ Independent Source-and-Sink Outputs for
Controllable Rise and Fall Times
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.
♦ Low Input Capacitance: 2.5pF (typ)
Applications
♦ +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
♦ VCC/2 CMOS (MAX5048A)/TTL (MAX5048B) Logic
Inputs
♦ 1.6V Input Hysteresis
♦ Up to +14V Logic Inputs (Regardless of V+
Voltage)
♦ -40°C to +125°C Operating Temperature Range
♦ 6-Pin SOT23 and TDFN Packages
Ordering Information
PART
TEMP RANGE
Power MOSFET Switching
Switch-Mode Power Supplies
PINLOGIC TOP
PACKAGE INPUT MARK
MAX5048AAUT-T -40°C to +125°C 6 SOT23-6
DC-DC Converters
MAX5048BAUT-T -40°C to +125°C 6 SOT23-6
Motor Control
MAX5048AATT-T -40°C to +125°C 6 TDFN-6
Power-Supply Modules
MAX5048BATT-T -40°C to +125°C 6 TDFN-6
Typical Operating Circuit
VCC/2
ABEC
CMOS
TTL ABED
VCC/2
AKV
CMOS
TTL
AKW
Pin Configurations
TOP VIEW
V+
V+
P_OUT
V+ 1
MAX5048A
MAX5048B
IN+
N_OUT
P_OUT 2
N
6
N_OUT 3
IN-
5
IN-
4
MAX5048A
MAX5048B
IN+
GND
GND
SOT23
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
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.
1
MAX5048
General Description
