Intersil Corporation HS-1825ARH Datasheet

HS-1825ARH

Data Sheet January 2000

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 singleended 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

Ordering Information

ORDERING

NUMBER

5962F9955801VEC HS1-1825ARH-Q -55 to 125 5962F9955801QEC HS1-1825ARH-8 -55 to 125 5962F9955801VXC HS9-1825ARH-Q -55 to 125 5962F9955801QXC HS9-1825ARH-8 -55 to 125 HS1-1825ARH/Proto HS1-1825ARH/Proto -55 to 125 HS9-1825ARH/Proto HS9-1825ARH/Proto -55 to 125

INTERSIL MKT.

NUMBER

TEMP. RANGE

(oC)

File Number 4561.4

Features

• Electrically Screened to DESC SMD # 5962-99558

• QML Qualiﬁed per MIL-PRF-38535 Requirements

• Radiation Environment

- Maximum Total Dose . . . . . . . . . . . . . 3 x 10

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

Pinout

HS-1825ARH

SBDIP (CDIP2-T16) AND FLATPACK (CDFP4-F16)

TOP VIEW

INV

NON-INV

E/A OUT

CLOCK

RT CT

RAMP

SOFT START

1 2 3 4 5 6 7 8

VREF 5.1V

OUTPUT B

POWER GND

OUTPUT A

GND

ILIM/SD

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

Die Characteristics

HS-1825ARH

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±1.0kÅ

Top Metallization:

Type: ALSiCu Thickness: 16.0k

Å ±2kÅ

Substrate:

Radiation Hardened Silicon Gate, Dielectric Isolation

Metallization Mask Layout

RT (5)

CT (6)

HS-1825ARH

Backside Finish:

Silicon

ASSEMBLY RELATED INFORMATION: Substrate Potential:

Unbiased (DI)

ADDITIONAL INFORMATION: Worst Case Current Density:

<2.0 x 10

A/cm

Transistor Count:

225

(4) CLK/LEB

(3) EAOUT

(2) IN+

RAMP (7)

SS (8)

ILIM (9)

OSCGND

(NOTE 1)

GND (10)

OUTA (11)

PGND (12)

(NOTE 2)

VC (13)

(NOTE 2)

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.

(1) IN-

(16) V

REF

(15) V

(14) OUTB

(12) PGND (NOTE 2)

(13) VC (NOTE 2)

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 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 web site www.intersil.com