E910.24/ E910.25/ 910.26 Ei = AAR) Adjustable, Wide Input Range PFM Controller Family Features Supply voltage range VIN: 3 'V te 60 V Up to S0% efficiency 40 JA standby current 180 WA circuit operating curment 1.5 V to 24 V or more adjustable output voltage Up to 300 KHz switching frequency Improved current-limited PFM contral scheme High current driver for external MOSFET Under-voltage lockout and thermal shutdown 40C to 125S operating temperature 508 package E910.26 basis version E910.24 additive with peak current halving for medium loads and extended max. switch-on -time E910.25 additive with peak current halving for medium loads and extended max. switch-on -time and fault protection - kk: & & & &t tk + Ft tk ee fo Applications Minimum component OC-OX> converters 14, 28 V or 42 V automotive systems Power conditioning for portable equipment High efficiency on-card switching regulators se & & General Description The family of highly flexible, easy to use PFM controllers is ideal for use in wide inpul range switching regulator applications. An advanced PFM control scheme gives these devices the benefits of PWM converters with high efficiency at heavy loads, while using very low operating currant at light loads to maintain an excellent behaviour over oulpul load varialion. The switching circuits are suitable for topologies requiring low side FET, such as boost, flyback, Sepic, alc. Dapending on the utilized topology the controllers are capable of producing regulated positive or negative output voltage. Operating fram 3 V to 60 WV supply and tamperature from -40C to 125C the device is wall suited for aulomotive applications. Requiring a minimum number of external components, these regulalors are simple to use and cost saving. Self protection features include an overload detection circuit, an over temperature shutdown under fault conditions and an under-vollage lockout. Typical Application : Esi0.268 Kl : L844 3] ee gs i z | at ELMOS Seminonducior AG Datasheet page 1/2 July 2002r\ E910.24/ E910.25/ 910.26 Eu: Package S08-pin PGND 5* _] MOR 4GND C CO] Wea SEW C C] iH VFB C CS) GN Pinning Pin Marne Description Driver power ground pin. Connect pin te the current senee reaielor, the [-) terminal of 4 PGND Ihe inpul capecior and the j-) lenninal of he cuipul capacior. Due io high currents, 6rd high frequency operation of the IC, a lew imeedience clrault ground plane is haghty| Teo ea, Analog ground pin. This pin provides: a clean ground for ihe controller circuitry: The z AGND oulpul vollage sensing resisiors should be commected bo Ihe ground pin. This pin is connected 10 The HO substrate, Connect bo the (-) banned of the outout capecibor, 5 ISEN Curent senae ipl pin, Voltage generated across an extemal sense resistor ts fecl into this pin, Filter exhersiree high frequency note, Positives feedback pin. Gannect ta SMPS cuiput via extemal sister divider to set 4 VFS Output volbage and is mefenenoed to 1.22 V. For best stability, keeo VFB lead as short 8s possible and VFB stray capacitance as small as possible. 5 On Switch ON input, Tie this: pin in ground io foroe the IC into idle mode. A valiage of VSM of higher switches the controler in operating mode. 6 VIN Malin supply inpat, Filler out high trequercy noise wilh @ 100 nF ceramic capacitor Placed close to the pin to PGND, Inderal 50 requisior output The driver ard ell oonire circuits ane powered trom this r VSM voltage, Decouple this pin ie PGND weh a minimum of 4.7 pF tantalum and 700 nF Damo Gapaciors. 8 MOR Drive output. Orives the gate of the edermal MOSFET between PGND and VSM. Connect he exiernal MOSFET via a damping resistor fo this pin Notion: ELMO Gaming AG. names fun right ic can Goenges te ta prods Gordeined in nis publnstion wiht notice. EL BOG Seino Ain meee no ceperaicdity foe thes wa it any Goats described benim, Gomes no bossa uoder erry peated or octer righ, end make no nepeeeeaniagon tat fea orcuie are free oof pakent intingermen| While She inicomsbon in be Publicntion ham been checker! nn reeponeibdity, hewever, bs eeumed for insccurncien, ELWGS Gamtroncudor AG cma ont regomiend tha uss! acy of ibs Grnduets in euppor applinagions etens the tallies or meByorhan of the pido can masonishty Ge epected in cen SSlura of 8 te-seppor ace on ioign icity ee te certety or eterna. Procuce erg no} mymorinac tte une in ict applreione. FLMOS Semiconductor AGe Hein fich-Herte-Sar, 1; 44227 Cranievured (Gerrmaery Phone: +49 (0173175490) Fac +9 (231 F549 149 Eyrail: salerEeiniosgde: Wake wenelirengde Gepyight 6 ELWGS Sunbcond ection A Datasheet page 2/2 duly 202 Alepredueies, in cart or wheal, willerad lhe poor faites Sorel of ELS: Sereanductet AG, i prvhibiedd.