september 2004 1 MIC94060/94061 MIC94060/94061 micrel MIC94060/94061 100m ? sc-70-6 smart load switch final general description the MIC94060 and mic94061 are smart high-side load switches housed in the sc-70-6 package. the devices contain a low on-resistance, 100m ? (max) p-channel mosfet that is driven by built-in level-shift and slew-rate control circuitry. the low on-resistance of the devices allows for them to support over 2a of continuous current. the mic94061 features an active pull-down circuit that discharges capaci- tive loads through a 200 ? switch when the ic is set to the off state. pull down circuitry keeps the MIC94060/1 in a default off state until the en pin is pulled to a high level. the built-in level shift circuitry allows for a logic signal that may be different from the supply voltage to switch the high-side p-channel mosfet on or off. the 1 s turn-on slew rate control prevents in-rush current from causing glitches on the supply rail. battery life is saved in portable applications with the ic? low quiescent current of 2 a and low shutdown current of <1 a. their 1.8v to 5.5v operating voltage range makes the MIC94060/1 suitable for 1-cell li ion, 2- to 3-cell nimh / nicad / alkaline, as well as other sub-5v input applications. integrating the level-shift and slew-rate control circuitry saves valuable board space and reduces component placement cost compared to discrete solutions. the MIC94060/1 are housed in the teeny sc-70-6 pack- age and have a junction temperature range of ?0 c to +150 c. t ypical application en v in MIC94060 77m load level shift and slew rate control load switch application features 1.8v to 5.5v input voltage range built-in level shift circuitry: can be driven by 1.5v logic low on-resistance p-channel mosfet: 77m ? at v gs = 4.5v (typ) 2a continuous current built-in slew-rate control: controlled 1 s turn-on rise-time fast 60ns turn-off fall time 2kv esd protection low 2 a quiescent current ?1 a micropower shutdown built-in fast-off load discharge circuit (mic94061) teeny sc-70-6 package ?0 c to +150 c junction temperature range applications load switch in portable applications: cellular phones pdas mp3 players digital cameras notebook pcs barcode scanners battery switch over circuits level translators micrel, inc. ? 1849 fortune drive ? san jose, ca 95131 ? usa ? tel + 1 (408) 944-0800 ? fax + 1 (408) 944-0970 ? http://www.mic rel.com en v in mic94061 77m 200 load level shift slew rate control and load discharge load switch application with capacitive load discharge
MIC94060/94061 micrel MIC94060/94061 2 september 2004 pin configuration MIC94060/1 sc-70-6 (c6) 3 1 6 2 4 5 ordering information part number load discharge circuitry marking junction temp. range package pb-free MIC94060bc6 no p54 ?0 c to +150 c sc-70-6 no mic94061bc6 yes p55 ?0 c to +150 c sc-70-6 no MIC94060yc6 no p54 ?0 c to +150 c sc-70-6 yes mic94061yc6 yes p55 ?0 c to +150 c sc-70-6 yes pin description pin number pin name pin function 1 vout drain of p-channel mosfet. no bypass capacitor required. 2, 5 gnd ground connections. 3e n enable input. 4 vin source of p-channel mosfet. no bypass capacitor required. 6n c no connect
september 2004 3 MIC94060/94061 MIC94060/94061 micrel absolute maximum ratings (note 1) input voltage (v in ) ........................................................ +6v enable voltage (v en ) .................................................... +6v continuous drain current (i d ) note 3 t a = 25 c .................................................................. 2a t a = 85 c ............................................................... 1.4a pulsed drain current (i dp ) note 5 ................................ 6a continuous diode current (i s ) note 7 ..................... ?0ma power dissipation note 3 sc-70-6 lead (t a = 85 c) .................................. 270 mw ambient storage temperature (t s ) ......... ?5 c to +150 c esd rating note 4 ....................................................... 2kv operating ratings (note 2) input voltage range (v in ) ............................... 1.8v to 5.5v junction temperature range (t j ) ........... ?0 c to +150 c package thermal impedance note 3 ja sc-70-6 lead ............................................... 240 c/w electrical characteristics t a = 25 c, unless otherwise specified. symbol parameter condition min typ max units static v en(th) en threshold voltage v in = 2.5v to 4.5v, i d = ?50 a 0.5 1.2 v v in = 1.8v to 4.5v, i d = ?50 a 0.4 1.2 v i en en input current (quiescent current) v in = v en = 5.5v 2 4 a i vin off state leakage current v en = open or 0v, v in = +5.5v 1 a r ds(on) p-channel drain-source v in = 4.5v, i d = ?00 ma; v en = 1.5v 77 100 m ? on-resistance v in = 3.6v, i d = ?00 ma; v en = 1.5v 85 115 m ? v in = 2.5v, i d = ?00 ma; v en = 1.5v 100 140 m ? v in = 1.8v, i d = ?00 ma; v en = 1.5v 145 200 m ? r shutdown turn-off impedance (94061) v in = 3.6v, v en = 0v or open 200 300 ? dynamic (note 6) t d(on) turn-on delay time v in = 3.6v, i d = ?00ma, v en = 1.5v 850 1500 ns t r turn-on rise time v in = 3.6v, i d = ?00ma, v en = 1.5v 0.5 1 5 s t d(off) turn-off delay time v in = 3.6v, i d = ?00ma, v en = 1.5v 100 150 ns t f turn-off fall time v in = 3.6v, i d = ?00ma, v en = 1.5v 60 100 ns note 1. t a = 25 c unless otherwise noted. absolute maximum ratings indicate limits beyond which damage to the component may occur. electrical specifications do not apply when operating the device outside of its operating ratings. the maximum allowable power dissipation is a function of the maximum junction temperature, t j(max) , the junction-to-ambient thermal resistance, ja , and the ambient temperature, t a . note 2. this device is not guaranteed to operate beyond its specified operating rating. note 3. mounted on 1 square-inch pad of 2 oz. copper. note 4. ic devices are inherently esd sensitive. handling precautions required. human body model, 1.5k ? in series with 100pf. note 5. pulse width < 300 s with <2% duty cycle. note 6. dynamic specifications are guaranteed by design. note 7. body diode current conduction is not recommended.
MIC94060/94061 micrel MIC94060/94061 4 september 2004 t ypical characteristics 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 -40 -20 0 20 40 60 80 100 120 140 160 rds-on (normalized) temperature ( c) rds-on variance with tem p erature v ds = 3.6v i d = 0.1a 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.5 2 2.5 3 3.5 4 4.5 5 5.5 en threshold (v) input voltage (v) en threshold voltage vs. in p ut volta g e i d = ?50 a 0 50 100 150 200 250 300 350 400 450 500 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 rds-on (m ? ) input voltage (v) on resistance vs. in p ut volta g e i l = 1.5a i l = 0.1a 0 50 100 150 200 250 300 350 400 450 500 0 0.5 1 1.5 2 2.5 3 vdrop (mv) load current (a) voltage drop vs. load current v in = 4.5v v in = 2.5v v in = 1.8v 0 1 2 3 4 5 6 7 8 9 10 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 rise time ( s) input voltage (v) turn on time vs. in p ut volta g e
september 2004 5 MIC94060/94061 MIC94060/94061 micrel ti ming waveforms time (2 s/div.) load current (1ma/div.) enable (1v/div.) v out (1v/div.) v in = 3.6v tu rn-off response time (2 s/div.) load current (1ma/div.) enable (1v/div.) v out (1v/div.) v in = 3.6v t urn-on response
MIC94060/94061 micrel MIC94060/94061 6 september 2004 package information 0.30 (0.012) 0.10 (0.004) 2.20 (0.087) 1.80 (0.071) 2.40 (0.094) 1.80 (0.071) 1.35 (0.053) 1.15 (0.045) 0.65 (0.0256) bsc 1.00 (0.039) 0.80 (0.032) 0.10 (0.004) 0.00 (0.000) dimensions: mm (inch) 0.30 (0.012) 0.15 (0.006) 0.18 (0.007) 0.10 (0.004) 1.10 (0.043) 0.80 (0.032) sc-70-6 pin (c6) micrel, inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 web http://www.micrel.com this information is believed to be accurate and reliable, however no responsibility is assumed by micrel for its use nor for an y infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or pat ent right of micrel, inc. ?2003 micrel, incorporated
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