MAX5048_05 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – 7.6A, 12ns, SOT23/TDFN, MOSFET Driver

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.
Applications
Power MOSFET Switching
Switch-Mode Power Supplies
DC-DC Converters
Motor Control
Power-Supply Modules
Typical Operating Circuit
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
Ordering Information
PART
TEMP RANGE
PIN-
LOGIC TOP
PACKAGE INPUT MARK
MAX5048AAUT-T -40°C to +125°C 6 SOT23-6
V_CC/2
CMOS
ABEC
MAX5048BAUT-T -40°C to +125°C 6 SOT23-6 TTL ABED
MAX5048AATT-T -40°C to +125°C 6 TDFN-6 ^VCC/2 AKV
CMOS
MAX5048BATT-T -40°C to +125°C 6 TDFN-6 TTL AKW
Pin Configurations
V+
V+
P_OUT
MAX5048A
MAX5048B
IN+
N_OUT
N
IN-
GND
TOP VIEW
V+ 1
6 IN+
MAX5048A
P_OUT 2 _MAX5048B 5 IN-
N_OUT 3
4 GND
SOT23
Pin Configurations continued at end of data sheet.
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