1
TM
File Number 4561.6
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 trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2001, All Rights Reserved
HS-1825ARH
Radiation Hardened High-Speed, Dual
Output PWM
The Radiation Hardened HS-1825ARH Pulse Width
Modulator is designed to be used in high frequency
switched-mode power supplies and can be used in either
current-mode or voltage-mode. It is well suited for single-
ended boost converter applications.
Device features include a precision voltage reference, low
power start-up circuit, high frequency oscillator, wide-band
error amplifier, and fast current-limit comparator. The use of
proprietary process capabilities and unique design
techniques results in fast propagation delay times and high
output current over a wide range of output voltages.
ConstructedwiththeIntersilRadHardSiliconGate(RSG)
Dielectric Isolation BiCMOS process, the HS-1825ARH has
been specifically designed to provide highly reliable
performance when exposed to harsh radiation
environments.
Specifications for Rad Hard QML devices are controlled
by the Defense Supply Center in Columbus (DSCC). The
SMD numbers listed below must be used when ordering.
Detailed Electrical Specifications for the HS-1825ARH
are contained in SMD 5962-99558. That document may
be easily downloaded from our website.
www.intersil.com/spacedefense/space.asp
Features
• Electrically Screened to DESC SMD # 5962-99558
• QML Qualified per MIL-PRF-38535 Requirements
• Radiation Environment
- MaximumTotalDose................ 300krad(SI)
- Vertical Architecture Provides Low Dose Rate Immunity
- DI RSG Process Provides Latch-Up Immunity
• LowStart-UpCurrent...................100µA(Typ)
• Fast Propagation Delay .................. 80ns(Typ)
• 12V to 30V Operation
• 1A (Peak) Dual Output Drive Capability
• 5.1V Reference
• Under-Voltage Lockout
• Programmable Soft-Start
• Switching Frequencies to 500kHz
• Trimmed Oscillator Discharge Current
• Latched Overcurrent Comparator with Full Cycle Restart
• Programmable Leading Edge Blanking Circuit
Applications
• Current or Voltage Mode Switching Power Supplies
• Motor Speed and Direction Control
Pinout
HS-1825ARH
SBDIP (CDIP2-T16) AND FLATPACK (CDFP4-F16)
TOP VIEW
NOTE: Grounding the Soft Start pin does not inhibit the outputs. The
outputs may be inhibited by applying >1.26V to the ILIM/SD pin.
Ordering Information
ORDERING
NUMBER INTERSIL MKT.
NUMBER TEMP. RANGE
(oC)
5962F9955801VEC HS1-1825ARH-Q -50 to 125
5962F9955801QEC HS1-1825ARH-8 -50 to 125
5962F9955801VXC HS9-1825ARH-Q -50 to 125
5962F9955801QXC HS9-1825ARH-8 -50 to 125
HS1-1825ARH/Proto HS1-1825ARH/Proto -50 to 125
HS9-1825ARH/Proto HS9-1825ARH/Proto -50 to 125
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
INV
NON-INV
E/A OUT
CLOCK
RT
CT
SOFT START
RAMP
VREF 5.1V
OUTPUT B
VC
POWER GND
OUTPUT A
GND
ILIM/SD
VCC
Data Sheet July 2001
2
All Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice.
Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable.
However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its
use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
Sales Office Headquarters
NORTH AMERICA
Intersil Corporation
7585 Irvine Center Drive
Suite 100
Irvine, CA 92618
TEL: (949) 341-7000
FAX: (949) 341-7123
Intersil Corporation
2401 Palm Bay Rd.
Palm Bay, FL 32905
TEL: (321) 724-7000
FAX: (321) 724-7946
EUROPE
Intersil Europe Sarl
Ave. C - F Ramuz 43
CH-1009 Pully
Switzerland
TEL: +41 21 7293637
FAX: +41 21 7293684
ASIA
Intersil Corporation
Unit 1804 18/F Guangdong Water Building
83 Austin Road
TST, Kowloon Hong Kong
TEL: +852 2723 6339
FAX: +852 2730 1433
Die Characteristics
DIE DIMENSIONS
4710µm x 3570µm (185 mils x 140 mils)
Thickness: 483µm±25.4µm(19mils±1 mil)
INTERFACE MATERIALS
Glassivation
Type: PSG (Phosphorous Silicon Glass)
Thickness: 8.0kű1.0kÅ
Top Metallization
Type: ALSiCu
Thickness: 16.0kű2kÅ
Substrate
Radiation Hardened Silicon Gate,
Dielectric Isolation
Backside Finish
Silicon
ASSEMBLY RELATED INFORMATION
Substrate Potential
Unbiased (DI)
ADDITIONAL INFORMATION
Worst Case Current Density
<2.0 x 105A/cm2
Transistor Count
225
Metallization Mask Layout HS-1825ARH
NOTES:
1. This is the oscillator ground (OSCGND) bond pad and must be
connectedtoGND.
2. PGND and VC each require two bond pad connections.
PGND (12)
OUTA (11)
GND (10)
OSCGND
ILIM (9)
SS (8)
RAMP (7)
CT (6)
RT (5)
(NOTE 1)
(1) IN-
(16) VREF
(15) VCC
(14) OUTB
(13) VC
(3) EAOUT
(4) CLK/LEB
(2) IN+
VC (13)
(NOTE 2) (NOTE 2)
(12) PGND
(NOTE 2)
(NOTE 2)
HS-1825ARH
