MAX15070BEUT+T Maxim Integrated Products, MAX15070BEUT+T Datasheet - Page 7

• Manufacturer Part Number: MAX15070BEUT+T
• Description: MOSFET & Power Driver ICs 7A-Sink 3A-Source 12ns
• Manufacturer: Maxim Integrated Products

Specifications of MAX15070BEUT+T

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 1. Timing Diagram and Test Circuit
The MAX15070A/MAX15070Bs’ logic inputs are pro-
tected against voltage spikes up to +16V, regardless of
the V+ voltage. The low 10pF input capacitance of the
inputs reduces loading and increases switching speed.
These ICs have two inputs that give the user greater
flexibility in controlling the MOSFET. Table 1 shows all
possible input combinations. The difference between the
MAX15070A and the MAX15070B is the input threshold
voltage. The MAX15070A has TTL logic-level thresholds,
Table 1. Truth Table
L = Logic-low, H = Logic-high.
IN+
H
H
L
L
IN-
H
H
L
L
CONNECTED
P_OUT AND
TOGETHER
N_OUT
Detailed Description
IN+
p-CHANNEL
V
IL
Off
Off
On
Off
Logic Inputs
t
D-OFF
n-CHANNEL
90%
10%
INPUT
12ns, SOT23 MOSFET Drivers
V+
On
On
Off
On
t
F
V+
IN+
IN-
TIMING DIAGRAM
TEST CIRCUIT
MAX15070A
MAX15070B
GND
while the MAX15070B has HNM (CMOS-like) logic-level
thresholds (see the Electrical Characteristics). Connect
IN+ to V+ or IN- to GND when not used. Alternatively,
the unused input can be used as an on/off control input
(Table 1).
When V+ is below the UVLO threshold, the n-channel is
on and the p-channel is off, independent of the state of
the inputs. The UVLO is typically 3.45V with 200mV typi-
cal hysteresis to avoid chattering. A typical falling delay
of 2Fs makes the UVLO immune to narrow negative tran-
sients in noisy environments.
The ICs provide two separate outputs. One is an open-
drain p-channel, the other an open-drain n-channel. They
have distinct current sourcing/sinking capabilities to inde-
pendently control the rise and fall times of the MOSFET
gate. Add a resistor in series with P_OUT/N_OUT to slow
the corresponding rise/fall time of the MOSFET gate.
N_OUT
P_OUT
7A Sink, 3A Source,
V
IH
C
L
t
Undervoltage Lockout (UVLO)
D-ON
OUTPUT
t
R
Driver Outputs
7