View FP6193XR-G1_7769465.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

fp6193 3a, 23v, 340khz synchronous step-down converter this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 1/11 general description the fp6193 is a synchronous buck re gulator with integrated two 85m power mosfets. it achieves 3a continuous output cu rrent over a wide input supply range with excellent load and line regulation. current mode operation provides fast tr ansient response and eases loop stabilization. the device includes cycle-by-cycle current limiting and thermal shutdown protection. the regulator only consumes 1 a supply current in shutdown mode. the fp6193 requires a minimum number of readily available external components to comp lete a 3a buck regulator solution. features ? 3a output current ? 85m internal power mosfet switches ? stable with low esr output ceramic capacitors up to 93% efficiency ? 1 a shutdown mode current ? programmable soft-start ? fixed 340khz frequency ? thermal shutdown ? cycle-by-cycle over current protection ? wide 4.75v to 23v operating input range ? output adjustable from 0.923v to 20v ? available sop-8l (ep) package ? input under voltage lockout applications ? distributed power systems ? battery charger network cards ? pre-regulator for linear regulators ? dsl modems typical application circuit
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 2/11 function block diagram 0.923v 110 / 340khz pin descriptions sop-8l (ep) 1 2 3 4 8 7 6 5 bs in sw gnd ss en comp fb ep top view bottom view name no. i / o description bs 1 o bootstrap in 2 p supply voltage sw 3 o switch gnd 4 p ground fb 5 i feedback comp 6 o compensation en 7 i enable / uvlo ss 8 o soft-start ep 9 p exposed pad is gnd
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 3/11 marking information sop-8l (ep) halogen free lot number internal id per-half month year fp6193 - halogen free : halogen free product indicator lot numbe r : wafer lot number?s last two digits for example: 132386tb ? 86 internal id : internal identification code per-half month : production period indicated in half month time unit for example: january a (front half month), b (last half month) february c (front half month), d (last half month) y ea r : production year?s last digit
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 4/11 ordering information part number operating temperature package moq description FP6193XR-G1 -40 c ~ +85 c sop-8l (ep) 2500ea tape & reel absolute maximum ratings parameter symbol conditions min. typ. max. unit supply voltage v in -0.3 24 v supply voltage v sw -1 v in +0.3 v bootstrap voltage v bs v sw -0.3 v sw +6 v all other pins -0.3 6 v junction temperature t j +150 c storage temperature t s -65 +150 allowable power dissipation sop-8l (ep) 650 mw thermal resistance ja sop-8l (ep) +60 / w jc +10 / w lead temperature (soldering, 10 sec) sop 8l (ep) +260 ir re-flow soldering curve
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 5/11 recommended operating conditions parameter symbol conditions min. typ. max. unit supply voltage v in 4.75 23 v operating temperature -40 +85 dc electrical characteristics (t a = 25 , v in =12v, unless otherwise noted) parameter symbol test conditions min. typ. max. unit standby current i sb v en R 3v,v fb R 1.0v 1.0 1.5 ma shutdown supply current i st v en =0 3 a feedback voltage v fb v in =12v,v comp <2v 0.900 0.923 0.946 v feedback over voltage threshold 1.1 v error amplifier voltage gain g ea 400 v / v error amplifier transconductance t ea ic=10 a 830 a / v high side switch on resistance r on-hs 85 m low side switch on resistance r on-ls 85 m high side switch leakage current i il v en =0,v sw =0v 0.1 10 a high side current limit i hcl 3.8 5.3 a low side current limit i lcl from drain to source 1 a comp to current sense transconductance t cs 5.2 a / v oscillation frequency f osc 340 khz short circuit oscillation frequency f sc v fb =0v 110 khz maximum duty cycle d max v fb =0.8v 90 % minimum on time t on 220 ns input under voltage lockout threshold v uvlo v in rising 3.8 4.1 4.4 v input under voltage lockout threshold hysteresis 200 mv en lockout threshold v enlo v en rising 2.2 2.5 2.7 v en lockout threshold hysteresis 250 mv en threshold voltage v en 1.0 1.5 2.0 v en threshold voltage hysteresis 300 mv soft-start current v ss =0v 6 a soft start period c ss =0.1 f 15 ms thermal shutdown t ts +150 c
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 6/11 function description the fp6193 is a synchronous cu rrent-mode buck regulator. it regulates input voltages from 4.75v to 23v down to an output voltage as low as 0.923v, and is able to supply up to 3a of load current. the fp6193 uses current-mode control to regulate the output voltage. the output vo ltage is measured at fb through a resistive voltage divider and amplified by the internal error amplifier. the output current of the tranconductance error amplifier is presented at co mp where a network compensates the regulation control system. the voltage at comp is compared to the switch current measur ed internally to control the output voltage. the converter uses internal n- channel mosfet switches to step-down the input voltage to the regulated output voltage. since t he mosfet requires a gate voltage greater than the input voltage, a boost capacitor connected between sw and bs drives the gate. the capacitor is charged from the internal regulator when the sw pin is low. output voltage (v out ) the output voltage is set using a resistive volt age divider from the output voltage to fb. the voltage divider divides the output voltage down by the ratio: 4 2 4 out fb r r r v v ? ? ? thus the output voltage is: 4 4 2 fb out r r r v v ? ? ? a typical value for r4 can be as high as 100k , but a typical value is 10k . enable mode / shutdown mode drive the en pin to ground to shutdown the fp6193. shutdown forces the internal power mosfets off, turns off all internal circuitry, and reduces the v in supply current to 1 a (typ). the en pin rising threshold is 1.5v (typ), and hysteresis is 300m v. for automatic startup a pplication, pull up the en pin with 100k resister. boost high-side gate drive (bst) since the mosfet requires a gate voltage great er than the input voltage, connect a flying bootstrap capacitor between sw and bs to provide t he gate-drive voltage to the high-side n-channel mosfet switch. the capacitor is alternately charged fr om the internal regulator. on startup, an internal low-side switch connects sw to ground and charge s the bst capacitor to internal regulated voltage. once the bst capacitor is charged, and the internal low-side switch is turned off, the bst capacitor voltage provides the necessary enhancement voltage to turn on the high-side switch.
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 7/11 thermal shutdown protection the fp6193 features integrated thermal shutdown protection. when the ic junction temperature exceeds +150 c , thermal shutdown protection will be trigger ed. the internal power mosfet is then turned off to limit the device power dissipation (p d ). once thermal shutdown occurs, this device can go back to normal operation until the junction te mperature drops below +100c approximately. application information input capacitor selection the input current to the step-down converter is di scontinuous, therefore a capacitor is required to supply the ac current to the step-down converter while maintaining the dc input voltage. use low esr capacitors for the best performance. ceramic capa citors are preferred, but tantalum or low-esr electrolytic capacitors may also suffice. the input capacitor can be electrolytic, tantalum or ceramic. when using electrolytic or tantalum capacitors, a small, high quality ceramic capacitor, i.e. 0.1 f, should be placed as close to the ic as possible. when using ceramic capacitors, make sure that they have enough capacitance to provide sufficient charge to prevent excessive voltage rippl e at input. the input voltage ripple caused by capacitance can be estimated by ) d 1 ( d v f i c in o in ? ? ? ? ? inductor selection the inductor is required to supply constant cu rrent to the output load while being driven by the switched input voltage. a larger value inductor will resu lt in less ripple current that will result in lower output ripple voltage. however, the larger value inductor will have a larger physical size, higher series resistance, and / or lower saturation current. a good rule for determining the inductance to use is to allow the peak-to-peak ripple current in the induct or to be approximately 30% of the maximum switch current limit. also, make sure that the peak inductor current is below the maximum switch current limit. the inductance value can be calculated by ) d 1 ( f i v v l o d o ? ? ? ? where r is the ripple current ratio rms current in inductor 12 1 i i 2 o lrms ? ? ?
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 8/11 output capacitor selection the output capacitor is required to maintain the dc output voltage. ceramic, tantalum, or low esr electrolytic capacitors are recommended. low esr capacitors are preferred to keep the output voltage ripple low. the output voltage ripple can be estimated by: ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? out in out in out out c f 8 1 esr v l f v v v v in the case of ceramic capacitors, the impedance at the switching frequency is dominated by the capacitance. the output voltage ripple is mainly caused by the capacitance. in t he case of tantalum or electrolytic capacitors, the esr dominates the impedance at the switching frequency. .in the case of ceramic capacitors ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? in out out 2 out out v v 1 v l f 8 v c .in the case of tantalum or electrolytic capacitors ?? out in out in out v v v v l f v esr ? ? ? ? ? ? ? pc board layout checklist 1. the power traces, consisting of the gnd trace, the sw trace and the v in trace should be kept short, direct and wide. 2. place c in near in pin as closely as possible. to maintain input voltage steady and filter out the pulsing input current. 3. the resistive divider r 2 and r 4 must be connected to fb pin dire ctly as closely as possible. 4. fb is a sensitive node. please keep it away from switching node, sw. a good approach is to route the feedback trace on another layer and to have a ground plane between the top layer and the layer on which the feedback trace is routed. this reduces emi radiation on to the dc-dc converter?s own voltage feedback trace.
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 9/11 fp6193 via to gnd via to gnd gnd bs via to bs gnd v out v in r4 r2 ground plane via to v in suggested layout
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 10/11 typical application
fp6193 this datasheet contains new product informat ion. feeling technology reserves the ri ghts to modify the product specification wi thout notice. no liability is assumed as a result of t he use of this product. no rights under any patent accompany the sales of the product. website: http://www.feeling-tech.com.tw rev. 0.63 11/11 package outline sop-8l (ep) unit: mm exposed pad dimensions: note: 1. package dimensions are in complian ce with jedec outline: ms-012aa. 2. dimension ?d? does not include molding flash, protrusions gate burrs. 3. dimension ?e? does not include inter-lead flash, or protrusions. symbols min. (mm) max. (mm) a 1.346 1.752 a1 0.050 0.152 a2 1.498 d 4.800 4.978 e 3.810 3.987 h 5.791 6.197 l 0.406 1.270 0 8 symbols min. (mm) max. (mm) e1 2.184 ref d1 2.971 ref

▲Up To Search▲

Price & Availability of FP6193XR-G1

	To Download FP6193XR-G1 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .