MAX15054AUT+T Maxim Integrated Products, MAX15054AUT+T Datasheet - Page 6

• Manufacturer Part Number: MAX15054AUT+T
• Description: IC MOSFET DVR HIGH SIDE SOT-23-6
• Manufacturer: Maxim Integrated Products
• Type: High Side Driverr

Specifications of MAX15054AUT+T

• Configuration: High-Side
• Input Type: Non-Inverting
• Delay Time: 11ns
• Current - Peak: 2A
• Number Of Configurations: 1
• Number Of Outputs: 1
• High Side Voltage - Max (bootstrap): 65V
• Voltage - Supply: 4.6 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Product: MOSFET Gate Drivers
• Rise Time: 6 ns
• Fall Time: 6 ns
• Propagation Delay Time: 12 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.6 V
• Supply Current: 40 uA
• Maximum Power Dissipation: 695.7 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Bridge Type: Half Bridge, Full Bridge
• Maximum Turn-off Delay Time: 25 ns
• Maximum Turn-on Delay Time: 25 ns
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 1
• Output Current: 2.5 A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High-Side MOSFET Driver for HB LED Drivers
and DC-DC Applications
The MAX15054 n-channel MOSFET driver controls an
external high-side MOSFET in high-voltage, high-current
applications. This driver operates with a supply voltage of
4.6V to 5.5V, and consumes only 300FA of supply current
during typical switching operations (f
no-load conditions. The MAX15054 provides 2.5A (typ)
sink
large capacitive loads and with switching frequencies
up to 2MHz. The device is used to drive the high-side
MOSFET without requiring an isolation device such as an
optocoupler or a drive transformer.
6
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/
PIN
source peak current and is capable of operating with
1
2
3
4
5
6
NAME
HDRV
GND
V
BST
LX
HI
DD
EXTERNAL
Detailed Description
5V CMOS Logic Input. HI is referenced to GND and is capable of withstanding voltages up to 13.5V for
any V
Ground
Input Supply Voltage. Valid supply voltage ranges from 4.6V to 5.5V. Bypass V
ceramic capacitor as close as possible to the device.
Boost Flying Capacitor Connection. Connect a minimum of a 0.1FF ceramic capacitor between BST
and LX for the high-side MOSFET driver supply. Connect a bootstrap Schottky diode between V
and BST.
High-Side Gate-Driver Output. Driver output to drive the high-side external MOSFET gate.
Source Connection for High-Side MOSFET. LX also serves as a return terminal for the high-side driver.
GND
V
D
DD
1
HI
DD
voltage.
MAX15054
LOW-SIDE
SW
UVLO
= 500kHz) and
HIGH-SIDE
UVLO
BST
The high-side driver is controlled by a CMOS logic
referenced to ground and is powered by a bootstrap
circuit formed by an external diode and capacitor.
Undervoltage lockout (UVLO) protection is provided for
both the high- and low-side driver supplies (BST and
V
The MAX15054’s fast switching times and very short
propagation delays (11ns, typ) are ideal for high-
frequency applications. Internal logic circuitry prevents
shoot-through during output state changes and minimizes
package power dissipation.
DD
SHIFT UP
FUNCTION
) and includes a UVLO hysteresis of 0.2V (typ).
LEVEL
LEVEL SHIFT
DOWN
Functional Diagram
Pin Description
HDRV
LX
DD
to GND with a 0.1FF
DD