Intel ISL8840AMBEP Data Handbook
Summary
The ISL884xAMBEP series provides highly reliable, high-performance PWM Controllers designed for diverse power conversion applications, including flyback, forward, and boost regulators. These controllers boast full military temperature grade performance (-55°C to +125°C), rapid transient response, adjustable switching frequencies up to 2MHz, and low operating currents. This manual details the comprehensive specifications, precise pinout diagrams, feature comparison tables, and ordering information needed for electronics designers building robust power management systems.
Page 1 Text Content
ISL8840AMBEP, ISL8841AMBEP, ISL8842AMBEP, ISL8843AMBEP, ISL8844AMBEP, ISL8845AMBEP
February 6, 2008 FN6471.1Data Sheet
Enhanced Product (EP) High Performance Features Industry Standard Single-Ended Current
Specifications per DSCC VID V62/07621
Mode PWM Controllers
Full Mil-Temp Electrical Performance from -55°C to +125°C
The ISL884x AMBEP is a high performance drop-in
Controlled Baseline with One Wafer Fabrication Site and
replacement for the popular 28C4x and 18C4x PWM
One Assembly/Test Site
controllers suitable for a wide range of power conversion applications including flyback, forward and boost output Full Homogenous Lot Processing in Wafer Fab configurations. Its fast signal propagation and output
No Combination of Wafer Fabrication Lots in Assembly
switching characteristics make this an ideal product for
existing and new designs. Full Traceability Through Assembly and Test by Date/Trace Code Assignment
Features include 30V operation, low operating current, 90µA
Enhanced Process Change Notification
start-up current, adjustable operating frequency to 2MHz, and high peak current drive capability with 20ns rise and fall Enhanced Obsolescence Management times.
Eliminates Need for Up-Screening a COTS Component
RISING UVLO MAX.
1A MOSFET Gate Driver
PART NUMBER (V) DUTY CYCLE (%)
90µA Start-up Current, 125µA Maximum
ISL8840AMBEP 7.0
35ns Propagation Delay Current Sense to Output
ISL8841AMBEP 7.0
Fast Transient Response with Peak Current Mode Control
ISL8842AMBEP 14.4
ISL8843AMBEP 8.4 30V Operation
ISL8844AMBEP 14.4 Adjustable Switching Frequency to 2MHz
www.BDTIC.com/Intersil ISL8845AMBEP 8.4 20ns Rise and Fall Times with 1n F Output Load
Trimmed Timing Capacitor Discharge Current for Accurate Deadtime/Maximum Duty Cycle Control
Device Information
1.5MHz Bandwidth Error Amplifier
The specifications for an Extended Plastic (EP) device are
Tight Tolerance Voltage Reference Over Line, Load and
defined in a Vendor Item Drawing (VID), which is controlled
Temperature
by the Defense Supply Center in Columbus (DSCC). “Hot-links” to the applicable VID and other supporting ±3% Current Limit Threshold application information are provided on our website.
Applications
Pinout
Isolated Flyback and Forward Regulators
ISL884XAMBEP (8 LD SOIC) Boost Regulators TOP VIEW
COMP VREF
FB VDD
CS OUT
RTCT GND
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 © Intersil Americas Inc. 2007, 2008. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
Page Summary Contents For Intel ISL8840AMBEP Data Handbook
Manual Details
| Brand | Intel |
|---|---|
| Pages | 3 |
| File Size | 69.49 KB |
| Published | May 31, 2026 |
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Frequently Asked Questions
What is the adjustable switching frequency range for this controller?
The device allows for an adjustable operating frequency up to 2MHz.
What temperature conditions can the ISL884xAMBEP operate in?
It maintains full electrical performance over a broad temperature range from -55°C to +125°C.
How must these sensitive components be handled and installed?
Because they are sensitive to electrostatic discharge, users must follow proper IC Handling Procedures.
What types of power conversion applications can the ISL884xAMBEP regulate?
The product is suitable for various power conversion topologies including flyback, forward, and boost output regulators.