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ISL6721_07 Datasheet

  • ISL6721_07

  • Intersil Corporation [Flexible Single Ended Current Mode PW...

  • INTERSIL   INTERSIL

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ISL6721
Data Sheet
April 13, 2007
FN9110.4
Flexible Single Ended Current Mode PWM
Controller
The ISL6721 is a low power, single-ended pulse width
modulating (PWM) current mode controller designed for a
wide range of DC/DC conversion applications including
boost, flyback, and isolated output configurations. Peak
current mode control effectively handles power transients
and provides inherent overcurrent protection. Other features
include a low power mode where the supply current drops to
less than 200碌A(chǔ) during overvoltage and overcurrent
shutdown faults.
This advanced BiCMOS design features low operating
current, adjustable operating frequency up to 1MHz,
adjustable soft-start, and a bi-directional SYNC signal that
allows the oscillator to be locked to an external clock for
noise sensitive applications.
Features
鈥?1A MOSFET Gate Driver
鈥?100渭A Startup Current
鈥?Fast Transient Response with Peak Current Mode Control
鈥?Adjustable Switching Frequency up to 1MHz
鈥?Bi-Directional Synchronization
鈥?Low Power Disable Mode
鈥?Delayed Restart from OV and OC Shutdown Faults
鈥?Adjustable Slope Compensation
鈥?Adjustable Soft-start
鈥?Adjustable Overcurrent Shutdown Delay
鈥?Adjustable UV and OV Monitors
鈥?Leading Edge Blanking
鈥?Integrated Thermal Shutdown
Ordering Information
PART
NUMBER
ISL6721AB*
PART
MARKING
ISL6721AB
TEMP
RANGE (擄C)
PACKAGE
PKG.
DWG. #
M16.15
M16.15
M16.173
M16.173
鈥?1% Tolerance Voltage Reference
鈥?Pb-free Plus Anneal Available (RoHS Compliant)
-40 to +105 16 Ld SOIC
-40 to +105 16 Ld SOIC
(Pb-Free)
-40 to +105 16 Ld TSSOP
ISL6721ABZ* 6721ABZ
(Note)
ISL6721AV*
ISL67 21AV
Applications
鈥?Telecom and Datacom Power
鈥?Wireless Base Station Power
鈥?File Server Power
鈥?Industrial Power Systems
鈥?Isolated Buck and Flyback Regulators
鈥?Boost Regulators
ISL6721AVZ* ISL67 21AVZ -40 to +105 16 Ld TSSOP
(Note)
(Pb-free)
*Add 鈥?T鈥?suffix for tape and reel.
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.
Pinout
ISL6721
(16 LD SOIC, TSSOP)
TOP VIEW
GATE 1
ISENSE 2
SYNC 3
SLOPE 4
UV 5
OV 6
RTCT 7
ISET 8
16 VC
15 PGND
14 VCC
13 VREF
12 LGND
11 SS
10 COMP
9 FB
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2003-2005, 2007. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.

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