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參數資料
| 型號： | 5962R0724903VXC |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDFP8 |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, FP-8 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 760K |
| 代理商： | 5962R0724903VXC |
1
ISL78840ASRH
,
ISL78841ASRH
,
ISL78843ASRH
,
ISL78845ASRH
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. 2009, 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
Radiation Hardened, High Performance Industry
Standard Single-Ended Current Mode PWM
Controller
ISL78840ASRH, ISL78841ASRH, ISL78843ASRH, ISL78845ASRH
The ISL7884xASRH is a high performance, radiation
hardened drop-in replacement for the popular 28C4x and
18C4x PWM controllers suitable for a wide range of
power conversion applications including boost, flyback,
and isolated output configurations. Its fast signal
propagation and output switching characteristics make
this an ideal product for existing and new designs.
Features include up to 13.2V operation, low operating
current, 90A typ start-up current, adjustable operating
frequency to 1MHz, and high peak current drive
capability with 50ns rise and fall times.
Specifications for Rad Hard QML devices are
controlled by the Defense Supply Center in
Columbus (DSCC). The SMD numbers listed in the
ordering information must be used when ordering.
Features
Electrically Screened to DSCC SMD # 5962-07249
QML Qualified Per MIL-PRF-38535 Requirements
1A MOSFET Gate Driver
90A Typ Start-up Current, 125A Max
35ns Propagation Delay Current Sense to Output
Fast Transient Response with Peak Current Mode
Control
9V to 13.2V Operation
Adjustable Switching Frequency to 1MHz
50ns Rise and Fall Times with 1nF Output Load
Trimmed Timing Capacitor Discharge Current for
Accurate Deadtime/Maximum Duty Cycle Control
1.5MHz Bandwidth Error Amplifier
Tight Tolerance Voltage Reference Over Line, Load
and Temperature
±3% Current Limit Threshold
Pb-Free Available (RoHS Compliant)
Applications
Current Mode Switching Power Supplies
Isolated Buck and Flyback Regulators
Boost Regulators
Direction and Speed Control in Motors
Control of High Current FET Drivers
PART NUMBER
RISING UVLO
MAX. DUTY CYCLE
ISL78840ASRH
7.0
100%
ISL78841ASRH
7.0
50%
ISL78843ASRH
8.4V
100%
ISL78845ASRH
8.4V
50%
Pin Configurations
ISL78840ASRH, ISL78841ASRH,
ISL78843ASRH, ISL78845ASRH
(8 LD FLATPACK)
TOP VIEW
ISL78840ASRH, ISL78841ASRH,
ISL78843ASRH, ISL78845ASRH
(8 LD SBDIP)
TOP VIEW
8
7
6
5
2
3
4
1
COMP
FB
CS
RTCT
VREF
VDD
OUT
GND
COMP
FB
CS
RTCT
1
2
3
4
8
7
6
5
VREF
VDD
OUT
GND
August 19, 2010
FN6991.1
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