ISL6745ALEVAL3Z Intersil, ISL6745ALEVAL3Z Datasheet

ISL6745ALEVAL3Z

Manufacturer Part Number

ISL6745ALEVAL3Z

Description

EVAL BOARD 3 FOR ISL6745

Manufacturer

Intersil

Datasheets

1.ISL6745AAUZ.pdf (9 pages)

2.ISL6745ALEVAL3Z.pdf (12 pages)

Specifications of ISL6745ALEVAL3Z

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Bonase Electronics (HK) Co., Limited

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Improved Bridge Controller with Precision

Dead Time Control

The ISL6745A is a low-cost double-ended voltage-mode

PWM controller designed for half-bridge and full-bridge

power supplies and line-regulated bus converters. It

provides precise control of switching frequency, adjustable

soft-start, and overcurrent shutdown. In addition, the

ISL6745A allows for accurate adjustment of MOSFET

non-overlap time (“deadtime”) with deadtimes as low as

35ns, allowing power engineers to optimize the efficiency of

open-loop bus converters. The ISL6745A also includes a

control voltage input for closed-loop PWM and line voltage

feed-forward functions. The ISL6745A is identical to the

ISL6745, but is optimized for higher noise environments.

Low start-up and operating currents allow for easy biasing in

both AC/DC and DC/DC applications. This advanced

BiCMOS design also features adjustable switching

frequency up to 1MHz, 1A FET drivers, and very low

propagation delays for a fast response to overcurrent faults.

The ISL6745A is available in a space-saving MSOP-10

package and is guaranteed to meet rated specifications over

a wide -40°C to +105°C temperature range.

Ordering Information

ISL6745AAUZ* 6745A

*Add “-T” suffix for tape and reel. Please refer to TB347 for details on

reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets, molding compounds/die attach

materials, and 100% matte tin plate plus anneal (e3 termination

finish, which is RoHS compliant and compatible with both SnPb and

Pb-free soldering operations). Intersil Pb-free products are MSL

classified at Pb-free peak reflow temperatures that meet or exceed

the Pb-free requirements of IPC/JEDEC J STD-020.

NUMBER

(Note)

PART

MARKING

PART

-40 to +105 10 Ld MSOP M10.118

RANGE

TEMP.

(°C)

Data Sheet

PACKAGE

(Pb-Free)

DWG. #

PKG.

1-888-INTERSIL or 1-888-468-3774

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Precision Duty Cycle and Deadtime Control

• 100µA Start-up Current

• Adjustable Delayed Overcurrent Shutdown and Re-Start

• Adjustable Oscillator Frequency Up to 2MHz

• 1A MOSFET Gate Drivers

• Adjustable Soft-Start

• Internal Over-Temperature Protection

• 35ns Control to Output Propagation Delay

• Small Size and Minimal External Component Count

• Input Undervoltage Protection

• Pb-Free (RoHS Compliant)

Applications

• Half-bridge Converters

• Full-bridge Converters

• Line-regulated Bus Converters

• AC/DC Power Supplies

• Telecom, Datacom, and File Server Power

Pinout

September 11, 2008

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

VERR

RTD

SS 1

(10 LD MSOP)

TOP VIEW

ISL6745A

VDD

VDDP

OUTB

OUTA

GND

ISL6745A

FN6703.1

Related parts for ISL6745ALEVAL3Z

ISL6745ALEVAL3Z Summary of contents

Page 1

... All other trademarks mentioned are the property of their respective owners. ISL6745A FN6703.1 ISL6745A (10 LD MSOP) TOP VIEW VDD RTD 9 VDDP 2 VERR 3 8 OUTB OUTA GND | Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2008. All Rights Reserved ...

Page 2

Internal Architecture V DD UVLO + - INTERNAL BG OT SHUTDOWN 130°C - 150°C GND R 2. RTD V BIAS 160µ PEAK 2. VALLEY 0. DCH ON CS 0.6V PWM ...

Page 3

Typical Application - Telecom DC/DC Converter VIN+ C1 36V TO 75V (100V Max.) C2 VIN RTD 3 VERR VR1 ISL2100A VDD 8 1 ...

Page 4

... Thermal Resistance (Typical, Note 1) 10 Lead MSOP Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp < 16V 51.1kΩ +25°C; Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise ...

Page 5

Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to Block Diagram on page 2 and Typical Application schematic on page 3. 9V < V values are at T specified. Temperature limits established by characterization and are not production tested. ...

Page 6

Typical Performance Curves 0.01 0.02 0.03 0.04 0.05 0.06 RTD CURRENT (mA) FIGURE 1. OSCILLATOR CT DISCHARGE CURRENT GAIN 600 500 400 300 200 100 0 100 200 300 400 500 600 CT (pF) ...

Page 7

Pin Descriptions the power connection for the IC. To optimize DD DD noise immunity, bypass V to GND with a ceramic DD capacitor as close to the V and GND pins as possible. DD The total ...

Page 8

R (Figure 5), and in charge current TD (Figure 4), results from Equation 2 would differ from the calculated frequency. The typical performance curves may be used as a tool along with the previous equations as ...

Page 9

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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