MAX5054 MAXIM [Maxim Integrated Products], MAX5054 Datasheet - Page 9

• Manufacturer Part Number: MAX5054
• Description: 4A, 20ns, Dual MOSFET Drivers
• Manufacturer: MAXIM [Maxim Integrated Products]

Figure 1. Timing Diagram
Figure 2. MAX5054 Block Diagram (1 Driver)
The MAX5054–MAX5057 have internal undervoltage
lockout for V
old, OUT_ is low, independent of the state of the inputs.
The undervoltage lockout is typically 3.5V with 200mV
typical hysteresis to avoid chattering. When V
above the UVLO threshold, the outputs go high or low
depending upon the logic-input levels. Bypass V
using low-ESR ceramic capacitors for proper operation
(see the Applications Information section).
OUT_
IN_+
IN_-
RISING MISMATCH = t
FALLING MISMATCH = t
IN_+
IN_-
V
V
IH
IL
V
MAX5054
DD
DD
t
t
D-OFF2
D-OFF1
D-ON2
D-OFF2
. When V
Undervoltage Lockout (UVLO)
- t
_______________________________________________________________________________________
D-ON1
- t
D-OFF1
Detailed Description
DD
t
F
V
is below the UVLO thresh-
IL
CONTROL
BEFORE-
BREAK-
MAKE
V
IH
t
t
D-ON2
D-ON1
4A, 20ns, Dual MOSFET Drivers
P
N
DD
V
OUT_
GND
DD
rises
90%
10%
DD
t
R
The MAX5054B–MAX5057 have TTL-compatible logic
inputs, while the MAX5054A is a CMOS logic-input dri-
ver. The logic-input signals can be independent of the
V
by a 5V supply while the logic inputs are provided from
CMOS logic. Also, the logic inputs are protected against
the voltage spikes up to 18V, regardless of the V
age. The TTL and CMOS logic inputs have 300mV and
0.1 x V
ble pulsing during transition. The low 2.5pF input capaci-
tance reduces loading and increases switching speed.
Figure 3. MAX5055/MAX5056/MAX5057 Functional Diagrams
(1 Driver)
DD
IN_+
IN_-
voltage. For example, the device can be powered
DD
NONINVERTING INPUT DRIVER
INVERTING INPUT DRIVER
hysteresis, respectively, to avoid possible dou-
MAX5055
MAX5056
MAX5057
MAX5055
MAX5056
MAX5057
CONTROL
CONTROL
BEFORE-
BEFORE-
BREAK-
BREAK-
MAKE
MAKE
Logic Inputs
P
N
P
N
DD
V
OUT_
GND
V
OUT_
GND
DD
DD
volt-
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