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ISL78843ASRHF/PROTO

Description
Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, PROTO, FP
CategoryPower/power management    The power supply circuit   
File Size921KB,18 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
Environmental Compliance
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ISL78843ASRHF/PROTO Overview

Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, PROTO, FP

ISL78843ASRHF/PROTO Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerRenesas Electronics Corporation
Parts packaging codeDFP
package instructionDFP,
Contacts8
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage13.2 V
Minimum input voltage9 V
JESD-30 codeR-CDFP-F8
JESD-609 codee4
length6.485 mm
Number of functions1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
Maximum output current1 A
Package body materialCERAMIC, METAL-SEALED COFIRED
encapsulated codeDFP
Package shapeRECTANGULAR
Package formFLATPACK
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Maximum seat height2.92 mm
surface mountYES
Switch configurationSINGLE
Maximum switching frequency1000 kHz
Temperature levelMILITARY
Terminal surfaceGold (Au)
Terminal formFLAT
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width6.475 mm
DATASHEET
ISL78840ASxH, ISL78841ASxH, ISL78843ASxH, ISL78845ASxH
Radiation Hardened, High Performance Industry Standard Single-Ended Current
Mode PWM Controller
The
ISL78840ASEH, ISL78841ASEH, ISL78843ASEH,
ISL78845ASEH, ISL78840ASRH, ISL78841ASRH,
ISL78843ASRH, ISL78845ASRH
are high performance,
radiation hardened drop-in replacements for the popular
28C4x and 18C4x PWM controllers suitable for a wide range of
power conversion applications including boost, flyback, and
isolated output configurations. Fast signal propagation and
output switching characteristics make these ideal products 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.
FN7952
Rev 2.00
Feb 23, 2018
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
• Trimmed timing capacitor discharge current for accurate
dead time/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)
• 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 to ISL7884xASEH only)
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
Related Literature
For a full list of related documents, visit our website
ISL78840ASEH, ISL78841ASEH, ISL78843ASEH,
ISL78845ASEH, ISL78840ASRH, ISL78841ASRH,
ISL78843ASRH,
and
ISL78845ASRH
product pages
TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS
PART NUMBER
ISL78840ASxH
ISL78841ASxH
ISL78843ASxH
ISL78845ASxH
RISING UVLO
(V)
7.0
7.0
8.4
8.4
MAXIMUM DUTY CYCLE
(%)
100
50
100
50
FN7952 Rev 2.00
Feb 23, 2018
Page 1 of 17

ISL78843ASRHF/PROTO Related Products

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Description Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, PROTO, FP Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, CLASS V, S Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, PROTO, SBD Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, CLASS Q, F Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, CLASS Q, F Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, PROTO, SBD Switch controller RADIATION HARDENED SINGLE ENDED CURRENT MODE PWM, PROTO, FP
Is it Rohs certified? conform to conform to conform to conform to conform to conform to conform to
Maker Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation Renesas Electronics Corporation
Parts packaging code DFP DIP DIP DFP DFP DIP DFP
package instruction DFP, DIP, DIP8,.3 DIP, DFP, FL8,.25 DFP, FL8,.25 DIP, DFP,
Contacts 8 8 8 8 8 8 8
Reach Compliance Code compliant compliant compliant compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 13.2 V 13.2 V 13.2 V 13.2 V 13.2 V 13.2 V 13.2 V
Minimum input voltage 9 V 9 V 9 V 9 V 9 V 9 V 9 V
JESD-30 code R-CDFP-F8 R-CDIP-T8 R-CDIP-T8 R-CDFP-F8 R-CDFP-F8 R-CDIP-T8 R-CDFP-F8
Number of functions 1 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8 8
Maximum operating temperature 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C
Minimum operating temperature -55 °C -55 °C -55 °C -55 °C -55 °C -55 °C -55 °C
Maximum output current 1 A 1 A 1 A 1 A 1 A 1 A 1 A
Package body material CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED
encapsulated code DFP DIP DIP DFP DFP DIP DFP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form FLATPACK IN-LINE IN-LINE FLATPACK FLATPACK IN-LINE FLATPACK
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 2.92 mm 5.08 mm 5.08 mm 2.92 mm 2.92 mm 5.08 mm 2.92 mm
surface mount YES NO NO YES YES NO YES
Switch configuration SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE
Maximum switching frequency 1000 kHz 1000 kHz 1000 kHz 1000 kHz 1000 kHz 1000 kHz 1000 kHz
Temperature level MILITARY MILITARY MILITARY MILITARY MILITARY MILITARY MILITARY
Terminal form FLAT THROUGH-HOLE THROUGH-HOLE FLAT FLAT THROUGH-HOLE FLAT
Terminal pitch 1.27 mm 2.54 mm 2.54 mm 1.27 mm 1.27 mm 2.54 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 6.475 mm 7.62 mm 7.62 mm 6.475 mm 6.475 mm 7.62 mm 6.475 mm
JESD-609 code e4 - e4 - - e4 e4
length 6.485 mm - - 6.485 mm 6.485 mm - 6.485 mm
Terminal surface Gold (Au) - Gold (Au) - - Gold (Au) Gold (Au)
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