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PDF ISL6843 Data sheet ( Hoja de datos )
| Número de pieza | ISL6843 | |
| Descripción | Improved Industry Standard Single Ended Current Mode PWM Controller | |
| Fabricantes | Intersil Corporation | |
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Data Sheet
ISL6840, ISL6841, ISL6842,
ISL6843, ISL6844, ISL6845
September 29, 2015
FN9124.12
Improved Industry Standard Single-Ended
Current Mode PWM Controller
The ISL6840, ISL6841, ISL6842, ISL6843, ISL6844,
ISL6845 family of adjustable frequency, low power, pulse
width modulating (PWM) current mode controllers is
designed for a wide range of power conversion applications
including boost, flyback, and isolated output configurations.
Peak current mode control effectively handles power
transients and provides inherent overcurrent protection.
This advanced BiCMOS design is pin compatible with the
industry standard 384x family of controllers and offers
significantly improved performance. Features include low
operating current, 60µA start-up current, adjustable
operating frequency to 2MHz, and high peak current drive
capability with 20ns rise and fall times.
PART NUMBER
ISL6840
ISL6841
ISL6842
ISL6843
ISL6844
ISL6845
RISING UVLO (V) MAX. DUTY CYCLE (%)
7.0 100
7.0 50
14.4 100
8.4 100
14.4 50
8.4 50
Pinouts
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
(8 LD SOIC, MSOP)
TOP VIEW
COMP 1
FB 2
CS 3
RTCT 4
8 VREF
7 VDD
6 OUT
5 GND
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
(8 LD DFN)
TOP VIEW
COMP 1
FB 2
CS 3
RTCT 4
8 VREF
7 VDD
6 OUT
5 GND
Features
• 1A MOSFET Gate Driver
• 60µA Start-up Current, 100µA Maximum
• 25ns Propagation Delay Current Sense to Output
• Fast Transient Response with Peak Current Mode Control
• Adjustable Switching Frequency to 2MHz
• 20ns Rise and Fall Times with 1nF Output Load
• Trimmed Timing Capacitor Discharge Current for Accurate
Deadtime/Maximum Duty Cycle Control
• High Bandwidth Error Amplifier
• Tight Tolerance Voltage Reference Over Line, Load, and
Temperature
• Tight Tolerance Current Limit Threshold
• Pb-Free 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
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2004, 2005, 2007, 2008, 2012, 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
Typical Application - Boost Converter
VIN+
L1
Q1
R8 C10
CR1
R4
C1
VIN-
R1 R2
C4
U1
COMP
FB
CS
RTCT
VREF
VDD
OUT
GND
R3
C7
+
C2
+VOUT
C3
RETURN
R5
C9
R7
VIN+
C8
R6
C5
C6
5 Page 
ISL6840, ISL6841, ISL6842, ISL6843, ISL6844, ISL6845
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to the web to make
sure that you have the latest revision.
DATE
REVISION
CHANGE
September 29, 2015
FN9124.12
- Updated Ordering Information Table on page 2.
- Added Revision History.
- Added About Intersil Verbiage.
- Updated POD L8.2X3 to latest revision changes are as follow:
-Revision 1 to Revision 2 Changes:
Tiebar Note 5 updated
From: Tiebar shown (if present) is a non-functional feature.
To: Tiebar shown (if present) is a non-functional feature and may be located on any of the 4 sides (or
ends).
About Intersil
Intersil Corporation is a leading provider of innovative power management and precision analog solutions. The company's products
address some of the largest markets within the industrial and infrastructure, mobile computing and high-end consumer markets.
For the most updated datasheet, application notes, related documentation and related parts, please see the respective product
information page found at www.intersil.com.
You may report errors or suggestions for improving this datasheet by visiting www.intersil.com/ask.
Reliability reports are also available from our website at www.intersil.com/support.
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9001 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
11 FN9124.12
September 29, 2015
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet ISL6843.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ISL6840 | (ISL6840 - ISL6845) Improved Industry Standard Single-Ended Current Mode PWM Controller | Intersil Corporation |
| ISL6841 | (ISL6840 - ISL6845) Improved Industry Standard Single-Ended Current Mode PWM Controller | Intersil Corporation |
| ISL6842 | Improved Industry Standard Single Ended Current Mode PWM Controller | Intersil Corporation |
| ISL6843 | Improved Industry Standard Single Ended Current Mode PWM Controller | Intersil Corporation |
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