AO4801/mc4801 freescale 1 these miniature surface mount mosfets utilize a high cell density trench process to provide low r ds(on) and to ensure minimal power loss and heat dissipation. typical applications are dc-dc converters and power management in portable and battery-powered products such as computers, printers, pcmcia cards, cellular and cordless telephones. p-channel 20-v (d-s) mosfet ? low r ds(on) provides higher efficiency and extends battery life ? low thermal impedance copper leadframe soic-8 saves board space ? fast switching speed ? high performance trench technology notes a. surface mounted on 1? x 1? fr4 board. b. pulse width limited by maximum junction temperature v ds (v) r ds(on) m( ) i d (a) 52 @ v gs = -4.5v -4.9 89 @ v gs = -2.5v -4.0 124 @ vgs = -1.8v -3.6 product summary -20 symbol maximum units v ds -20 v gs 12 t a =25 o c -5.2 t a =70 o c -4.1 i dm 50 i s -2.1 a t a =25 o c 2.1 t a =70 o c 1.3 t j , t stg -55 to 150 o c power dissipation a p d operating junction and storage temperature range w continuous source current (diode conduction) a absolute maximum ratings (t a = 25 o c unless otherwise noted) parameter pulsed drain current b v gate-source voltage drain-source voltage continuous drain current a i d a symbol maximum units maximum junction-to-case a t <= 5 sec r jc 40 o c/w maximum junction-to-ambient a t <= 5 sec r ja 60 o c/w thermal resistance ratings parameter 1 2 3 4 7 8 5 6 www.freescale.net.cn
2 notes a. pulse test: pw <= 300us duty cycle <= 2%. b. guaranteed by design, not subject to production testing. min typ max gate-threshold voltage v gs(th) v ds = v gs , i d = -250 ua -0.7 gate-body leakage i gss v ds = 0 v, v gs = 12 v 100 na v ds = -16 v, v gs = 0 v -1 v ds = -16 v, v gs = 0 v, t j = 55 o c -5 on-state drain current a i d(on) v ds = -4.5 v, v gs = -10 v -20 a v gs = -4.5 v, i d = -4.9 a 52 v gs = -2.5 v, i d = -4.0 a 89 v gs = -1.8 v, i d = -3.6 a 124 forward tranconductance a g fs v ds = -15 v, i d = -4.9 a 20 s diode forward voltage v sd i s = 2.5 a, v gs = 0 v -0.6 v total gate charge q g 16.7 gate-source charge q gs 1.8 gate-drain charge q gd 1.9 turn-on delay time t d(on) 7 rise time t r 13 turn-off delay time t d(off) 14 fall-time t f 9 dynamic b specifications (t a = 25 o c unless otherwise noted) ua i dss zero gate voltage drain current static test conditions symbol parameter limits v dd = -10 v, r l = 6 , i d = -1 a, vgen = -4.5 v ns v ds = -10 v, v gs = -4.5 v, i d = -4.9 a nc unit drain-source on-resistance a r ds(on) m AO4801/mc4801 freescale www.freescale.net.cn fr eescale reserves the right to make changes without further notic e to any products herein. freescalemakes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does freescale assume any liability arising ou t of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, conseque ntial or incidental damages. ?typical? parameters which may be provided in freescale data sheet s and/or specifications can a nd do vary in different appli cations and actual performance may vary over time. all operating parameters , including ?typicals? must be validated for each customer appl ication by customer?s technical experts. freescaledoes not convey any license under its patent rights nor the rights of others. freescale products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications int sustain life, or for any other application in which the failure of the freescale product could create a situation where personal inju should buyer purchase or use freescale products for any such uninte nded or unauthorized application, buyer shall indemnify and hold freescale and its officers, employees, subsidiari es, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirect ly, any claim of personal injury or death associated with such unintended or unauthori zed use, even if such claim alleges that freescale was negligent regarding the design or m anufacture of the part. freescale is an equal opportunity/affirmative action employer.
3 typical electrical characteristics (p-channel) figure 5. gate charge figure 1. output characteristics figure 2. transfer characteristics figure 4. capacitance figure 6. on-resistance vs. junction temperature 0 300 600 900 1200 1500 0 5 10 15 20 -v ds , drain to source voltage (v) capacitance (pf) c iss c oss c rss 0 5 10 15 20 0 1 2 3 4 -v ds , drain to source voltage (v) -i d , drain current (a) v gs = -4.5v -2.5v -2.0v -3.0v 0 5 10 15 0.5 1 1.5 2 2.5 -v gs , gate to source voltage (v) -i d , drain current (a) t a = -55 o c 25 o c 125 o c figure 3. on-resistance vs. drain current 0.8 1 1.2 1.4 1.6 0 5 10 15 20 -i d , dirain current (a) r ds(on) , normalized drain-source on-resistance v gs = -2.5v -4.5v -10 -8 -6 -4 -2 0 0 4 8 12 16 20 qg, charge (nc) vgs voltage ( v ) 0.6 0.8 1 1.2 1.4 1.6 -50 -25 0 25 50 75 100 125 150 t j , junction temperature ( o c) r ds(on) , normalized drain-source on-resistance v gs = -4.5v AO4801/mc4801 freescale www.freescale.net.cn
4 0 10 20 30 40 50 0.001 0.01 0.1 1 10 100 t1, time (sec) p(pk), peak transient power (w) single pulse rqja = 125oc/w ta = 25oc 0.0001 0.001 0.01 0.1 1 10 100 0 0.2 0.4 0.6 0.8 1 1.2 -v sd , body diode forward voltage (v) -i s , reverse drain current (a) t a = 125 o c 25 o c 0 0.03 0.06 0.09 0.12 0.15 1 2 3 4 5 -v gs , gate to source voltage (v) r ds(on) , on-resistance (ohm) 0.001 0.01 0.1 1 0.0001 0.001 0.01 0.1 1 10 100 1000 t1, tim e (s ec ) s ingle p uls e 0.01 0.02 0.0 0.1 0.2 d = 0.5 rqj a(t) = r(t) + r qj a C r qj a = 125 /w tj - ta = p * r qj a(t) duty c ycle , d = t1 / t2 p (pk) t1 t2 typical electrical characteristics (p-channel) figure 11. transient thermal response curve figure 10. single pulse maximum power dissipation figure 9. vth gate to source voltage vs temperature figure 7. source-drain diode forward voltage figure 8. on-resistance with gate to source voltage normalized thermal transient junction to ambient 0.4 0.6 0.8 1 1.2 -50 -25 0 25 50 75 100 125 150 t a , ambient temperature ( o c) -v th , gate-source thresthold voltage (v) i d = -250 a AO4801/mc4801 freescale www.freescale.net.cn
5 package information so-8: 8lead h x 45 AO4801/mc4801 freescale www.freescale.net.cn
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