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...................100 a(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 ( o c) 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 v cc 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 a ny 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 b e 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 partie s 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 4710 m x 3570 m (185 mils x 140 mils) thickness: 483 m 25.4 m(19mils 1 mil) interface materials glassivation type: psg (phosphorous silicon glass) thickness: 8.0k ? 1.0k ? top metallization type: alsicu thickness: 16.0k ? 2k ? 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 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) v ref (15) v cc (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
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