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IS-1845ASEH PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 IS-1845ASEH
部品説明 Single Event Radiation Hardened High Speed Current Mode PWM
メーカ Intersil
ロゴ Intersil ロゴ 



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IS-1845ASEH Datasheet, IS-1845ASEH PDF,ピン配置, 機能
Single Event Radiation Hardened High Speed, CurrentNROETCROIESMCLMO7E8M8NM4DXEEANDRDRHEE,DIPSFLLOA7RC88EN4MEXWEANEDTHEPSAIGRTNS
Mode PWM
IS-1845ASRH, IS-1845ASEH
The IS-1845ASRH, IS-1845ASEH are
designed to be used in switching
TM power supplies operating in
current-mode. The rising edge of the
on-chip oscillator turns on the output.
Turn-off is controlled by the current sense comparator and
occurs when the sensed current reaches a peak controlled by
the error amplifier.
Constructed with Intersil’s Rad Hard Silicon Gate (RSG)
dielectrically isolated BiCMOS process, these devices are
immune to single event latch-up and have been specifically
designed to provide a high level of immunity to single event
transients. All specified parameters are guaranteed and tested
for 300krad(Si) total dose performance at a high dose rate and
50krad(Si) total dose at a low dose rate.
Detailed Electrical Specifications for these devices are
contained in the SMD 5962-01509. A “hot-link” is also
provided on our website for downloading the SMD.
Features
• Electrically Screened to DSCC SMD # 5962-01509
• QML Qualified per MIL-PRF-38535 Requirements
• Radiation Environment
- High Dose Rate. . . . . . . . . . . . . . . . . . . . .300 krad(SI) (Max)
- Low Dose Rate . . . . . . . . . . . . . . . . . . . . . . 50 krad(SI) (Max)
- SEL Immune . . . . . . . . . . . . . . . . . . . . Dielectrically Isolated
- SEU Immune. . . . . . . . . . . . . . . . . . . . . . . . 35MeV/mg/cm2
- SEU Cross-Section at 89MeV/mg/cm2 . . . . . . 5 x 10-6cm2
• Low Start-up Current . . . . . . . . . . . . . . . . . . . . . . . 100µA (Typ)
• Fast Propagation Delay . . . . . . . . . . . . . . . . . . . . . . . 80ns (Typ)
• Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . 12V to 20V
• High Output Drive. . . . . . . . . . . . . . . . . . . . . . . . 1A (Peak, Typ)
• Undervoltage Lockout . . . . . 8.8V Start (Typ), 8.2V Stop (Typ)
Applications
• Current-Mode Switching Power Supplies
• Control of High Current FET Drivers
• Motor Speed and Direction Control
Pin Configurations
IS7-1845ASRH, IS7-1845ASEH
(8 LD CDIP2-T8 SBDIP)
TOP VIEW
COMP 1
VFB 2
ISENSE 3
RTCT 4
8 VREF
7 VCC
6 OUT
5 GND
NC
COMP
VFB
NC
NC
NC
ISENSE
RTCT
NC
IS9-1845ASRH, IS9-1845ASEH
(18 LD FLATPACK)
TOP VIEW
1 18
2 17
3 16
4 15
5 14
6 13
7 12
8 11
9 10
NC
VREF
VCC
VC
OUT
NC
GND
OSCGND
NC
NOTES:
1. Grounding the COMP pin does not inhibit the output. The output may be inhibited by applying >1.2V to the ISENSE pin.
2. This part should be operated with Ct = 3.3nF and Rt = 10k timing components only.
October 16, 2015
FN9001.6
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 2003, 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.

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Single Event Radiation Hardened High Speed Current Mode PWM

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