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ISL78845ASRH PDF Data sheet ( 特性 )

部品番号 ISL78845ASRH
部品説明 High Performance Industry Standard Single-Ended Current Mode PWM Controller
メーカ Intersil
ロゴ Intersil ロゴ 



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ISL78845ASRH Datasheet, ISL78845ASRH PDF,ピン配置, 機能
DATASHEET
Radiation Hardened, High Performance Industry
Standard Single-Ended Current Mode PWM Controller
ISL78840ASEH, ISL78841ASEH, ISL78843ASEH, ISL78845ASEH
ISL78840ASRH, ISL78841ASRH, ISL78843ASRH, ISL78845ASRH
The ISL78840ASEH, ISL78841ASEH, ISL78843ASEH,
ISL78845ASEH, ISL78840ASRH, ISL78841ASRH,
ISL78843ASRH, ISL78845ASRH are 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,
90µA typical start-up current, adjustable operating frequency
to 1MHz and high peak current drive capability with 50ns rise
and fall times.
Features
• Electrically screened to DLA SMD #5962-07249
• QML Qualified Per MIL-PRF-38535 Requirements
• 1A MOSFET Gate Driver
• 90µA typical start-up current, 125µA Maximum
• 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
Applications
• Current mode switching power supplies
• Isolated buck and flyback regulators
• Boost regulators
• 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
• Direction and speed control in motors
• ±3% current limit threshold
• Control of high current FET drivers
• Pb-free available (RoHS compliant)
Related Literature
TR005, “Single Event Effects (SEE) Test Report for
ISL78843ASRH and ISL78845ASRH High Performance
Single-ended Current Mode PWM Controllers”
TR006, “Neutron Testing of the ISL78845ASEH Pulse Width
Modulator”
• Radiation environment:
- High dose rate (50 - 300rad(Si)/s). . . . . . . . . . 100krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . 100krad(Si)*
* Product capability established by initial characterization. The
“EH” version is acceptance tested on a wafer by wafer basis to
50krad(Si) at low dose rate. (Applies for ISL7884xASEH only)
Pin Configurations
ISL78840ASEH, ISL78841ASEH,
ISL78843ASEH, ISL78845ASEH ISL78840ASRH,
ISL78841ASRH, ISL78843ASRH, ISL78845ASRH
(8 LD FLATPACK)
TOP VIEW
COMP
FB
CS
RTCT
18
27
36
45
VREF
VDD
OUT
GND
ISL78840ASEH, ISL78841ASEH,
ISL78843ASEH, ISL78845ASEH ISL78840ASRH,
ISL78841ASRH, ISL78843ASRH, ISL78845ASRH
(8 LD SBDIP)
TOP VIEW
COMP 1
FB 2
CS 3
RTCT 4
8 VREF
7 VDD
6 OUT
5 GND
April 8, 2016
FN7952.1
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 2012, 2016. 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.

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High Performance Industry Standard Single-Ended Current Mode PWM Controller

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