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IS-1825ASRH 데이터시트 PDF




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부품번호 IS-1825ASRH 기능
기능 Dual Output PWMs
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IS-1825ASRH 데이터시트, 핀배열, 회로
®
Data Sheet
IS-1825ASRH, ISL71823ASRH
September 25, 2008
FN9065.3
Single Event and Total Dose Hardened,
High-Speed, Dual Output PWMs
The single event and total dose hardened IS-1825ASRH and
ISL71823ASRH pulse width modulators are designed to be
used in high frequency, switching power supplies in either
voltage or current-mode configurations. Both designs
include a precision voltage reference, a low power start-up
circuit, a high frequency oscillator, a wide-band error
amplifier and a fast current-limit comparator.
The IS-1825ASRH features dual, alternating outputs
operating from zero to less than 50% duty-cycle, while the
ISL71823ASRH features dual, in-phase outputs operating
from zero to less than 100% duty cycle.
Constructed with the Intersil 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 5962-02511. A “hot-link” is provided
on our website for downloading the SMD.
Pinouts
IS1-1825ASRH, ISL71823ASRHQD
(CDIP2-T16 SBDIP)
TOP VIEW
INV 1
NON-INV 2
E/A OUT 3
CLK/LEB 4
RT 5
CT 6
RAMP 7
SS 8
16 VREF
15 VCC
14 OUT B
13 VC
12 PGND
11 OUT A
10 GND
9 ILIM/SD
Features
• Electrically Screened to DSCC SMD # 5962-02511
• QML Qualified per MIL-PRF-38535 Requirements
• Radiation Environment
- Total Dose. . . . . . . . . . . . . . . . . . . . . 300krad(SI) (max)
- Latch-up Immune . . . . . . . . . . . . . Dielectrically Isolated
- SEU immune . . . . . . . . . . LET = 35MeV/mg/cm2(max)
• Oscillator Frequency . . . . . . . . . . . . . . . . . . . .1MHz(max)
• High Output Drive Current . . . . . . . . . . . . . . .1A peak(typ)
• Low Start-up Current . . . . . . . . . . . . . . . . . . . 300µA(max)
• Undervoltage Lockout
- Start Threshold . . . . . . . . . . . . . . . . . . . . . . . .8.8V(max)
- Stop Threshold . . . . . . . . . . . . . . . . . . . . . . . . 7.6V(min)
- Hysteresis. . . . . . . . . . . . . . . . . . . . . . . . . . 300mV(min)
• Improved Soft-Start Function Compared with Commercial
1825A/1823A Types
• Pulse-by-Pulse Current Limiting
• Latched Overcurrent Comparator with Full Cycle Restart
• Programmable Leading Edge Blanking
Applications
• Voltage or Current-Mode Switching Power Supplies
• Control of High Current MOSFET Drivers
• Motor Speed and Direction Control
NC
INV
NON-INV
E/A OUT
CLK/LEB
RT
CT
RAMP
SS
NC
IS9-1825ASRH, ISL71823ASRHQF
(CDFP4-F20 FLATPACK)
TOP VIEW
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
VREF
VCC
OUT B
PGND
VC
VC
PGND
OUT A
GND
ILIM/SD
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002, 2005, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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부품번호상세설명 및 기능제조사
IS-1825ASRH

Dual Output PWMs

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