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參數(shù)資料
| 型號： | IS7-1845ASRH-Q |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single Event Radiation Hardened High Speed, Current Mode PWM |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8 |
| 封裝： | SIDE BRAZED, CERAMIC, DIP-8 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大小： | 57K |
| 代理商： | IS7-1845ASRH-Q |
1
FN9001.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
IS-1845ASRH
Single Event Radiation Hardened
High Speed, Current Mode PWM
The IS-1845ASRH is designed to be
used in switching 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.
Detailed Electrical Specifications for these devices are
contained in SMD 5962-01509. A “hot-link” is provided on
our website for downloading the SMD.
Pinouts
IS7-1845ASRH (CDIP2-T8 SBDIP)
TOP VIEW
IS9-1845ASRH (FLATPACK)
TOP VIEW
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.
Features
Electrically Screened to DSCC SMD # 5962-01509
QML Qualified per MIL-PRF-38535 Requirements
Radiation Environment
- Total Dose . . . . . . . . . . . . . . . . . . . . 300 krad(SI) (Max)
- SEL Immune. . . . . . . . . . . . . . . . . Dielectrically Isolated
- SEU Immune . . . . . . . . . . . . . . . . . . . . 35MeV/mg/cm
2
- SEU Cross-Section at 89MeV/mg/cm
2
. . . . 5 x 10
-6
cm
2
Low Start-up Current . . . . . . . . . . . . . . . . . . . 100
μ
A (Typ)
Fast Propagation Delay . . . . . . . . . . . . . . . . . . 80ns (Typ)
Supply Voltage Range . . . . . . . . . . . . . . . . . . . 12V to 20V
High Output Drive. . . . . . . . . . . . . . . . . . . . 1A (Peak, Typ)
Under Voltage 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
TM
COMP
VFB
ISENSE
RTCT
1
2
3
4
8
7
6
5
VREF
VCC
OUT
GND
COMP
VFB
NC
NC
NC
ISENSE
RTCT
NC
3
4
5
6
7
8
9
2
17
16
15
14
13
12
11
10
VREF
VCC
VC
OUT
NC
GND
OSCGND
NC
NC
1
18
NC
Ordering Information
ORDERING NUMBER
INTERNAL
MKT. NUMBER
TEMP. RANGE
(
o
C)
5962F0150901VPC
IS7-1845ASRH-Q
-50 to 125
5962F0150901QPC
IS7-1845ASRH-8
-50 to 125
5962F0150901VXC
IS9-1845ASRH-Q
-50 to 125
5962F0150901QXC
IS9-1845ASRH-8
-50 to 125
IS7-1845ASRH/Proto
IS1-1845ASRH/Proto
-50 to 125
IS9-1845ASRH/Proto
IS9-1845ASRH/Proto
-50 to 125
Data Sheet
October 2003
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