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Intersil Electronic Components Datasheet

IS-1845ASRH Datasheet

Single Event Radiation Hardened High Speed Current Mode PWM

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IS-1845ASRH pdf
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.


Intersil Electronic Components Datasheet

IS-1845ASRH Datasheet

Single Event Radiation Hardened High Speed Current Mode PWM

No Preview Available !

IS-1845ASRH pdf
IS-1845ASRH, IS-1845ASEH
Ordering Information
ORDERING NUMBER
5962F0150901V9A
5962F0150902V9A
IS0-1845ASRH/Sample
5962F0150901VPC
5962F0150902VPC
5962F0150901QPC
5962F0150901VXC
5962F0150902VXC
5962F0150901QXC
IS7-1845ASRH/Proto
IS9-1845ASRH/Proto
INTERNAL
MKT. NUMBER
IS0-1845ASRH-Q
IS0-1845ASEH-Q
IS0-1845ASRH/SAMPLE
IS7-1845ASRH-Q
IS7-1845ASEH-Q
IS7-1845ASRH-8
IS9-1845ASRH-Q
IS9-1845ASEH-Q
IS9-1845ASRH-8
IS7-1845ASRH/PROTO
IS9-1845ASRH/PROTO
TEMP. RANGE
(°C)
-50 to +125
-50 to +125
-50 to +125
-50 to +125
-50 to +125
-50 to +125
-50 to +125
-50 to +125
-50 to +125
-50 to +125
-50 to +125
PACKAGE
Die
Die
Die
8 Ld SBDIP
8 Ld SBDIP
8 Ld SBDIP
18 Ld Flatpack
18 Ld Flatpack
18 Ld Flatpack
8 Ld SBDIP
18 Ld Flatpack
PKG.
DWG. #
D8.3
D8.3
D8.3
K18.B
K18.B
K18.B
D8.3
K18.3
Typical Performance Curves
10k
C470pF
1k
C1000pF
C2200pF
C4700pF
100
10
1 1 10
Rt TIMING RESISTANCE (kΩ)
FIGURE 1. OSCILLATOR FREQUENCY vs Rt and Ct
100
100
DMAX
80
60
40
20
00.1
1
10
Rt TIMING RESISTANCE (kΩ)
FIGURE 2. MAXIMUM DUTY CYCLE vs Rt
100
2 FN9001.6
October 16, 2015


Part Number IS-1845ASRH
Description Single Event Radiation Hardened High Speed Current Mode PWM
Maker Intersil Corporation
Total Page 3 Pages
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