MAX15054AUT+T【PDF 1/9 页】IC MOSFET DVR HIGH SIDE SOT-23-6

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Sheet目录340

[1页]2页 3页 4页 5页

19-4747; Rev 0; 9/09

High-Side MOSFET Driver for HB LED Drivers

and DC-DC Applications

General Description

The MAX15054 is a high-side, n-channel MOSFET driver

for high-voltage applications capable of switching at high

frequencies. This device is controlled by a CMOS logic-

level signal referenced to ground and features a very

short (12ns, typ) propagation delay from input to output.

The high-voltage operation and high source/sink-current

capability make the MAX15054 ideal for HB LED drivers

and DC-DC converters.

The MAX15054 is well suited to complement other Maxim

LED driver products such as the MAX16814, MAX16838,

MAX16833, MAX16834, and MAX16826. The MAX15054

adds a high-side driver to those products that include only a

low-side driver; it then allows for buck-boost configurations

for multistring drivers similar to the MAX16814, MAX16838,

and MAX16826, and for buck-boost conversion with output

referenced to ground for single-string drivers such as the

MAX16834 and MAX16833.

The MAX15054 is available in the industry-standard 6-pin

SOT23 package and operates over the -40 N C to +125 N C

automotive temperature range.

Features

S Input Voltage on High-Side n-Channel MOSFET Up

to 60V

S Up to 13.5V Logic Input Independent of Supply

Voltage

S 2A Peak Source and Sink Current

S 12ns Propagation Delay

S Rise and Fall Times of 6ns while Driving 1000pF

Capacitance

S Low Input Capacitance

S Low-Side and High-Side Undervoltage Protection

S Allows Buck-Boost Topology Referred to Ground

for LED Drivers and DC-DC Converters

S Allows Buck-Boost Topology for Multistring LED

Drivers

S 6-Pin SOT23 Package

Ordering Information

PART

TEMP RANGE

Applications

HB LED Drivers for Single and Multiple Strings

LED Backlight Drivers

High-Side Driver for DC-DC Converters

(Buck, Buck-Boost, Half-Bridge, Full-Bridge)

PIN-

PACKAGE

MAX15054AUT+ -40 N C to +125 N C 6 SOT23

+ Denotes a lead(Pb)-free/RoHS-compliant package.

Pin Configuration appears at end of data sheet.

TOP

MARK

ACOM

Typical Operating Circuits

V IN

D 1

C 1

V DD

MAX15054

BST

HDRV

C BST

GND

D 2

D 3

R 8

C 5

R 1

R 2

C 2

C 3

V CC

CFB

GATE NDRV

DRAIN

R 9

R 3

OUT1

C 4

V DRV

MAX16838

OUT2

ISET

R 7

DIM

COMP

FLT

R 4

SGND

PGND

LEDGND

R 6

R 5

C 4

Typical Operating Circuits continued at end of data sheet .

_______________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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