HS-1825ARH
Data Sheet
January 2000
File Number
4561.4
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.
Constructed with the Intersil Rad Hard Silicon Gate (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
- Maximum Total Dose . . . . . . . . . . . . . 3 x 10
5
RAD(SI)
- Vertical Architecture Provides Low Dose Rate Immunity
- DI RSG Process Provides Latch-Up Immunity
• Low Start-Up Current . . . . . . . . . . . . . . . . . . . 100µA (Typ)
• Fast Propagation Delay . . . . . . . . . . . . . . . . . . 80ns (Typ)
• 12V to 20V 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
Ordering Information
ORDERING
NUMBER
5962F9955801VEC
5962F9955801QEC
5962F9955801VXC
5962F9955801QXC
HS1-1825ARH/Proto
HS9-1825ARH/Proto
INTERSIL MKT.
NUMBER
HS1-1825ARH-Q
HS1-1825ARH-8
HS9-1825ARH-Q
HS9-1825ARH-8
HS1-1825ARH/Proto
HS9-1825ARH/Proto
TEMP. RANGE
(
o
C)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
Pinout
HS-1825ARH
SBDIP (CDIP2-T16) AND FLATPACK (CDFP4-F16)
TOP VIEW
INV 1
NON-INV 2
E/A OUT 3
CLOCK 4
RT 5
CT 6
RAMP 7
SOFT START 8
16 VREF 5.1V
15 V
CC
14 OUTPUT B
13 VC
12 POWER GND
11 OUTPUT A
10 GND
9 ILIM/SD
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Copyright
©
Intersil Corporation 2000
HS-1825ARH
Die Characteristics
DIE DIMENSIONS:
4710µm x 3570µm (185 mils x 140 mils)
Thickness: 483µm
±25.4µm
(19 mils
±1
mil)
INTERFACE MATERIALS:
Glassivation:
Type: PSG (Phosphorous Silicon Glass)
Thickness: 8.0k
Å
±1.0k
Å
Top Metallization:
Type: ALSiCu
Thickness: 16.0k
Å
±2k
Å
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 10
5
A/cm
2
Transistor Count:
225
Metallization Mask Layout
HS-1825ARH
RT (5)
(4) CLK/LEB
(3) EAOUT
CT (6)
(2) IN+
RAMP (7)
(1) IN-
SS (8)
(16) V
REF
ILIM (9)
OSCGND
(NOTE 1)
GND (10)
(14) OUTB
OUTA (11)
(12) PGND
(NOTE 2)
PGND (12)
(NOTE 2)
VC (13)
(NOTE 2)
(13) VC
(NOTE 2)
(15) V
CC
NOTES:
1. This is the oscillator ground (OSCGND) bond pad and must be connected to GND.
2. PGND and VC each require two bond pad connections.
All Intersil semiconductor products are manufactured, assembled and tested under
ISO9000
quality systems certification.
Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with-
out 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 web site
www.intersil.com
2
Analog electronics
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