Rainbow-electronics MAX15025 Bedienungsanleitung PDF herunterladen

General Description

The MAX15024/MAX15025 single/dual, high-speed

MOSFET gate drivers are capable of operating at fre-

quencies up to 1MHz with large capacitive loads. The

MAX15024 includes internal source-and-sink output

transistors with independent outputs allowing for control

of the external MOSFET’s rise and fall time. The

MAX15024 is a single gate driver capable of sinking an

8A peak current and sourcing a 4A peak current. The

MAX15025 is a dual gate driver capable of sinking a 4A

peak current and sourcing a 2A peak current. An inte-

grated adjustable LDO voltage regulator provides gate-

drive amplitude control and optimization.

The MAX15024A/C and MAX15025A/C/E/G accept tran-

sistor-to-transistor (TTL) input logic levels while the

MAX15024B/D and MAX15025B/D/F/H accept CMOS-

input logic levels. High sourcing/sinking peak currents, a

low propagation delay, and thermally enhanced pack-

ages make the MAX15024/MAX15025 ideal for high-fre-

quency and high-power circuits. The MAX15024/

MAX15025 operate from a 4.5V to 28V supply. A sepa-

rate output driver supply input enhances flexibility and

permits a soft-start of the power MOSFETs used in syn-

chronous rectifiers.

The MAX15024/MAX15025 are available in 10-pin

TDFN packages and are specified over the -40°C to

+125°C automotive temperature range.

Applications

Synchronous Rectifier Drivers

Power-Supply Modules

Switching Power Supply

Features

o 8A Peak Sink Current/4A Peak Source Current

(MAX15024)

o 4A Peak Sink Current/2A Peak Source Current

(MAX15025)

o Low 16ns Propagation Delay

o 4.5V to 28V Supply Voltage Range

o On-Board Adjustable LDO for Gate-Drive

Amplitude Control and Optimization

o Separate Output Driver Supply

o Independent Source and Sink Outputs (MAX15024)

o Matched Delays Between Inverting and

Noninverting Inputs (MAX15024)

o Matched Delays Between Channels (MAX15025)

o CMOS or TTL Logic-Level Inputs with Hysteresis

for Noise Immunity

o -40°C to +125°C Operating Temperature Range

o Thermal-Shutdown Protection

o 1.95W Thermally Enhanced TDFN Power Packages

MAX15024/MAX15025

Single/Dual, 16ns, High Sink/Source

Current Gate Drivers

________________________________________________________________

Maxim Integrated Products

10 87

REG

P_OUT

N_OUT

FB/SET

GND

IN+

MAX15024

DRVV

EP*

*EP = EXPOSED PAD.

3425

PGNDIN-

TDFN

TOP VIEW

Pin Configurations

Ordering Information

19-1053; Rev 1; 3/08

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.

Note: All devices are specified over the -40°C to +125°C operating

temperature range.

Denotes a lead-free package.

Future product—contact factory for availability.

EP = Exposed pad. T = Tape and reel.

See the Selector Guide at the end of the data sheet.

Pin Configurations continued at end of data sheet.

Block Diagrams appear at end of data sheet.

PART

PIN-PACKAGE

PKG

CODE

TOP

MARK

MAX15024AATB+T 10 TDFN-EP** T1033-1

ATX

MAX15024BATB+T 10 TDFN-EP** T1033-1

ATY

MAX15024CATB+T* 10 TDFN-EP** T1033-1

—

MAX15024DATB+T* 10 TDFN-EP** T1033-1

—

MAX15025AATB+T 10 TDFN-EP** T1033-1

ATZ

MAX15025BATB+T 10 TDFN-EP** T1033-1

AUA

MAX15025CATB+T 10 TDFN-EP** T1033-1

AUB

MAX15025DATB+T 10 TDFN-EP** T1033-1

AUC

MAX15025EATB+T* 10 TDFN-EP** T1033-1

—

MAX15025FATB+T* 10 TDFN-EP** T1033-1

—

MAX15025GATB+T* 10 TDFN-EP** T1033-1

—

MAX15025HATB+T* 10 TDFN-EP** T1033-1

—

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Inhaltsverzeichnis

Seite 1 - Current Gate Drivers

General DescriptionThe MAX15024/MAX15025 single/dual, high-speedMOSFET gate drivers are capable of operating at fre-quencies up to 1MHz with large cap

Seite 2

MAX15024/MAX15025Single/Dual, 16ns, High Sink/Source Current Gate Drivers10 __________________________________________________________________________

Seite 3

Power DissipationPower dissipation of the MAX15024/MAX15025 con-sists of three components: the quiescent current,capacitive charge and discharge of in

Seite 4

MAX15024/MAX15025Single/Dual, 16ns, High Sink/Source Current Gate Drivers12 __________________________________________________________________________

Seite 5