ISL6729IB Intersil, ISL6729IB Datasheet

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ISL6729IB

Manufacturer Part Number
ISL6729IB
Description
IC CTRLR PWM SGL-ENDED 8-SOIC
Manufacturer
Intersil
Datasheet

Specifications of ISL6729IB

Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
2MHz
Duty Cycle
100%
Voltage - Supply
4.75 V ~ 5.25 V
Buck
Yes
Boost
Yes
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-40°C ~ 105°C
Package / Case
8-SOIC (3.9mm Width)
Frequency-max
2MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL6729IBZ
Manufacturer:
Intersil
Quantity:
500
Low-Cost Single-Ended Current-Mode
PWM for Microcontroller Based Power
Converters
The ISL6729 pulse width modulating (PWM) current mode
controller is designed for power conversion applications that
are based on a microcontroller or other device which can
generate a digital clock signal at the desired switching
frequency. Similar to the ISL684x family of products, the
ISL6729 provides the basic current mode PWM control
features, but eliminates the error amplifier, the oscillator, and
the reference. An external clock signal applied to the
oscillator input provides the time base and sets the
maximum duty cycle. The reduced feature set is ideal for
those applications where a microcontroller is available to
provide the monitor and control functions. The analog PWM
provides the cycle by cycle peak current mode control,
leaving the monitor and control overhead to the
microcontroller.
Ordering Information
ISL6729IB
ISL6729IBZ
(See Note)
ISL6729IU
ISL6729IUZ
(See Note)
Add -T to part number for Tape and Reel packaging.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are 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.
PART NUMBER
NUMBER
PART
ISL6729
ISL6729IB
6729IBZ
6729
6729Z
MARKING
PART
RISING UVLO
4.75V
®
RANGE (°C) PACKAGE
-40 to 105
-40 to 105
-40 to 105
-40 to 105
1
TEMP.
Data Sheet
MAX. DUTY CYCLE
8 Ld SOIC
8 Ld SOIC
(Pb-free)
8 Ld MSOP M8.118
8 Ld MSOP
(Pb-free)
100%
M8.15
M8.15
M8.118
DWG. #
1-888-INTERSIL or 1-888-468-3774
PKG.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• 5V Operation
• 1A MOSFET gate driver
• 400µA startup current
• 30ns propagation delay current sense to output
• Fast transient response with peak current mode control
• Switching frequency to 2MHz
• 20ns rise and fall times with 1nF output load
• Maximum Duty Cycle Determined by Clock Input Duty
• Tight tolerance current limit threshold
• Pb-free plus anneal available (RoHS compliant)
Applications
• Telecom and Datacom Power
• Wireless Base Station Power
• File Server Power
• Industrial Power Systems
• PC Power Supplies
• Isolated Buck and Flyback Regulators
• Boost Regulators
Pinout
Cycle
December 1, 2005
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2004 - 2005. All Rights Reserved.
COMP
CLKS
ISL6729 (8 LD SOIC, MSOP)
N/C
CS
1
2
3
4
TOP VIEW
8
7
6
5
N/C
VDD
OUT
GND
ISL6729
FN9152.2

Related parts for ISL6729IB

ISL6729IB Summary of contents

Page 1

... Ordering Information PART PART TEMP. NUMBER MARKING RANGE (°C) PACKAGE ISL6729IB ISL6729IB -40 to 105 ISL6729IBZ 6729IBZ -40 to 105 (See Note) ISL6729IU 6729 -40 to 105 ISL6729IUZ 6729Z -40 to 105 (See Note) Add -T to part number for Tape and Reel packaging. ...

Page 2

Functional Block Diagram V DD START/STOP UV COMPARATOR GND CS 100mV 2R COMP R CLK OK DD PWM COMPARATOR + - 1.1V CLAMP OUT ...

Page 3

Typical Application - Interleaved Multi-Phase Isolated Converter CLOCK φ1 CLOCK φ2 MICROCONTROLLER CLOCK φ3 VOLTAGE FEEDBACK 5V 1 COMP 8 2 VDD OUT 6 4 CLK GND 5 ISL6729 CURRENT FEEDBACK 1 COMP 8 POWER STAGE 2 ...

Page 4

Absolute Maximum Ratings Supply Voltage GND - 0.3V to +6.5V DD OUT . . . . . . . ...

Page 5

Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application schematic. V PARAMETER PWM Maximum Duty Cycle Minimum Duty Cycle NOTES: 3. Specifications at -40°C are guaranteed by design, not production tested. 4. This is ...

Page 6

The Typical Application block diagram illustrates how the ISL6729 may be used for an interleaved power converter. In this example, three clock signals of equal duty cycle, but phased 120º apart, are applied to separate power stages. Each phase shares ...

Page 7

Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in the ...

Page 8

... 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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