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 a pplications are dc-dc converters and power management in portable and battery-powered products such as computers, printers, pcmcia cards, cellular and cordless telephones. v ds (v) r ds ( on ) m( ? )i d (a) 32 @ v gs = 4.5v 6.5 40 @ v gs = 2.5v 5.8 product summary 30 n-channel 30-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 1 2 3 4 7 8 5 6 symbol limit units v ds 30 v gs 12 t a =25 o c6.5 t a =70 o c5.3 i dm 50 i s 2.3 a t a =25 o c2.0 t a =70 o c1.3 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 t <= 10 sec 62.5 o c/w steady-state 110 o c/w thermal resistance ratings parameter maximum junction-to-ambient a r ja AO4924 / mc4924 freescale www.freescale.net.cn
2 notes a. pulse test: pw <= 3 00us 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 = 24 v, v gs = 0 v 1 v ds = 24 v, v gs = 0 v, t j = 55 o c 25 on-state drain current a i d ( on ) v ds = 5 v, v gs = 12 v 20 a v gs = 4.5 v, i d = 6.5 a 32 v gs = 2.5 v, i d = 5.8 a 40 forward tranconductance a g fs v ds = 15 v, i d = 6.5 a 40 s diode forward voltage v sd i s = 2.3 a, v gs = 0 v 0.7 v total gate charge q g 6.0 gate-source charge q g s 1.0 gate-drain charge q gd 1.5 turn-on delay time t d ( on ) 20 rise time t r 9 turn-off delay time t d(off) 70 fall-time t f 20 dynamic b specifications (t a = 25 o c unless otherwise noted) ua i dss zero gate voltage drain current static test conditions symbol drain-source on-resistance a r ds(on) v dd = 25 v, r l = 25 ? , i d = 1 a, v gen = 10 v v ds = 15 v, v gs = 4.5 v, i d = 6.5 a nc ns m ? parameter limits unit freescale www.freescale.net.cn AO4924 / mc4924 freescale reserves the right to make changes without fu rther notice to any products herein. freescale makes no warranty, representation or guarantee regarding the suitability of its produ cts for any particular purpose, nor does freescale assume any liability arising out of the application or use of any product or circuit, and specifically dis itation special, consequential or incidental damages. ?typical? parameters which may be provide d in freescale data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operati ng parameters, including ?typicals? must be validat ed for each customer application by customer?s technical experts. freescale does 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 sy stems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the freescale product could create a situ ation where personal injury or death may occur. should buyer purchase or use freescale products for any s uch unintended or unauthorized application, buyer s hall indemnify and hold freescale and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, da mages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any cl aim of personal injury or death associated with suc h unintended or unauthorized use, even if such claim alleges that freescale was negligent regarding the design or manufacture of the part. freescale is an equal opportunity/affirmative action employer. claims any and all liability, including without lim
3 typical electrical characteristics output characteristics transfer characteristics on-resistance vs. junction temperature gate charge capacitance on-resistance vs. drain current 0 5 10 15 20 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 v ds - drain-to-source voltage (v) i d , - drain current (a ) 2.5v 4.5v 0 5 10 15 20 25 30 1 1.5 2 2.5 3 3.5 v gs - gate-to-source voltage (v) i d - drain current (a ) t a = -55 o c 125 o c 25 o c 0.8 1 1.2 1.4 0 5 10 15 20 25 i d - drain current (a) r ds(on) , - normalized on-resistance v gs = 3.0v 4.5v 0 200 400 600 800 1000 0 6 12 18 24 30 v ds - drain-to-source voltage (v) c - capacitance (pf) ciss coss crss 0 2 4 6 8 10 03691215 q g - total gate charge (nc) v gs - gate-to-source 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) - on-resistance (normalized) v gs = 4.5v freescale www.freescale.net.cn AO4924 / mc4924
4 typical electrical characteristics (n-channel) normalized thermal transient im pedance, junction-to-ambient single pulse power threshold voltage source-drain diode forward voltage on -resistance vs.gate-to source voltage 0.0001 0.001 0.01 0.1 1 10 100 0 0.2 0.4 0.6 0.8 1 1.2 1.4 v sd - source-to-drain voltage (v) i s - source current (a) t a = 125 o c 25 o c 0.01 0.02 0.03 0.04 0.05 0.06 0.07 22.533.544.55 v gs - gate-to-source voltage (v) r ds(on) - on-resistance (ohm) t a = 25 o c 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 -50 -25 0 25 50 75 100 125 150 t j - temperature ( o c) v gs(th) variance (v) i d = 250 a 0 10 20 30 40 50 0.001 0.01 0.1 1 10 100 1000 time (sec) power (w) single pulse r ja = 250c/w t a = 25c 0.001 0.01 0.1 1 0.0001 0.001 0.01 0.1 1 10 100 1000 square wave puls e duration (s e c) normalized effective transient thermal impedance r ja (t) = r(t) + r ja r ja = 250 c/w t j - t a = p * r ja (t) duty cy c le, d = t 1 /t p( p k t 1 t 2 single puls e 0.01 0.02 0.05 0.1 0.2 d = 0.5 freescale www.freescale.net.cn AO4924 / mc4924
5 package information so-8: 8lead h x 45 freescale www.freescale.net.cn AO4924 / mc4924
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