Rainbow-electronics MAX15054 Manual do Utilizador descarregar pdf (Página 1)

_______________________________________________________________ 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.

High-Side MOSFET Driver for HB LED Drivers

and DC-DC Applications

MAX15054

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 -40NC to +125NC

automotive temperature 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)

Features

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

19-4747; Rev 0; 9/09

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

Pin Configuration appears at end of data sheet.

Ordering Information

PART TEMP RANGE

PIN-

PACKAGE

TOP

MARK

MAX15054AUT+

-40NC to +125NC

6 SOT23 ACOM

Typical Operating Circuits

BST

GND

BST

HDRV

DRV

DIM

COMP

DRAIN

OUT1

OUT2

ISET

FLT

SGND PGND

IN GATE NDRV

LEDGND

MAX15054

MAX16838

CFB

Typical Operating Circuits continued at end of data sheet.

1 2 3 4 5 6 7 8 9

Resumo do Conteúdo

Página 1 - MAX15054

_______________________________________________________________ Maxim Integrated Products 1For pricing, delivery, and ordering information, pleas

Página 2

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX150542 ______________________________________________________________________

Página 3

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX15054____________________________________________________________________________

Página 4

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX150544 ______________________________________________________________________

Página 5

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX15054____________________________________________________________________________

Página 6

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX150546 ______________________________________________________________________

Página 7 - Driver Logic Input (HI)

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX15054____________________________________________________________________________

Página 8 - MAX16814

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX150548 ______________________________________________________________________

Página 9 - TOP VIEW

High-Side MOSFET Driver for HB LED Drivers and DC-DC ApplicationsMAX15054Maxim cannot assume responsibility for use of any circuitry other than circu

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