supertex inc. supertex inc. www.supertex.com dn3145 doc.# dsfp-dn3145 a062713 features ? high input impedance ? low input capacitance ? fast switching speeds ? low on-resistance ? free from secondary breakdown ? low input and output leakage applications ? normally-on switches ? solid state relays ? converters ? constant current sources ? power supply circuits ? telecom general description the supertex dn3145 is a depletion-mode (normally-on) transistor utilizing an advanced vertical dmos structure and supertexs well-proven silicon-gate manufacturing process. this combination produces a device with the power handling capabilities of bipolar transistors and with the high input impedance and positive temperature coeficient inherent in mos devices. characteristic of all mos structures, this device is free from thermal runaway and thermally-induced secondary breakdown. supertexs vertical dmos fets are ideally suited to a wide range of switching and amplifying applications where high breakdown voltage, high input impedance, low input capacitance, and fast switching speeds are desired. absolute maximum ratings parameter value drain-to-source voltage bv dsx drain-to-gate voltage bv dgx gate-to-source voltage 20v operating and storage temperature -55 o c to +150 o c absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditions is not implied. continuous operation of the device at the absolute rating level may affect device reliability. all voltages are referenced to device ground. n-channel depletion-mode vertical dmos fets pin conigurationproduct marking to-243aa (sot-89) to-243aa (sot-89) dn1mw w = code for week sealed = ?green? packaging package may or may not include the following marks: si or gate source drain drain ordering information part number package option packing DN3145N8-G to-243aa (sot-89) 2000/reel product summary bv dsx /bv dgx r ds(on) (max) i dss (min) 450v 60 120ma package ja to-243aa (sot-89) 133 o c/w ? typical thermal resistance notes: ? mounted on fr4 board, 25mm x 25mm x 1.57mm. -g denotes a lead (pb)-free / rohs compliant package. contact factory for wafer / die availablity. devices in wafer / die form are lead (pb)-free / rohs compliant. downloaded from: http:///
2 supertex inc. www.supertex.com doc.# dsfp-dn3145 a062713 dn3145 90% 10% 90% 90% 10% 10% pulse generator vdd r l output d.u. t. t (on) t d(on) t (off) t d(off) t r input input output 0v vdd r gen 0v -10v t f electrical characteristics (t a = 25 o c unless otherwise speciied) sym parameter min typ max units conditions bv dsx drain-to-source breakdown voltage 450 - - v v gs = -5.0v, i d = 100a v gs(off) gate-to-source off voltage -1.5 - -3.5 v v ds = 15v, i d = 10a v gs(off) change in v gs(off) with temperature - - -4.5 mv/ o c v ds = 15v, i d = 10a i gss gate body leakage current - - 100 na v gs = 20v, v ds = 0v i d(off) drain-to-source leakage current - - 1.0 a v ds = max rating, v gs = -5.0v - - 1.0 ma v ds = 0.8 max rating, v gs = -5.0v, t a = 125 o c i dss saturated drain-to-source current 120 - - ma v gs = 0v, v ds = 15v r ds(on) static drain-to-source on-state resistance - - 60 v gs = 0v, i d = 100ma r ds(on) change in r ds(on) with temperature - - 1.1 %/ o c v gs = 0v, i d = 100ma g fs forward transconductance 140 - - mmho v ds = 10v, i d = 100ma c iss input capacitance - - 120 pf v gs = -5.0v, v ds = 25v, f = 1.0mhz c oss common source output capacitance - - 15 c rss reverse transfer capacitance - - 10 t d(on) turn-on delay time - - 10 ns v dd = 25v, i d = 100ma, r gen = 25?, t r rise time - - 15 t d(off) turn-off delay time - - 20 t f fall time - - 35 v sd diode forward voltage drop - - 1.8 v v gs = -5.0v, i sd = 100ma t rr reverse recovery time - 800 - ns v gs = -5.0v, i sd = 100ma notes: 1. all d.c. parameters 100% tested at 25 o c unless otherwise stated. (pulse test: 300s pulse, 2% duty cycle.) 2. all a.c. parameters sample tested. thermal characteristics package i d (continuous) ? i d (pulsed) power dissipation @t a = 25 o c i dr ? i drm to-243aa 100 ma 300 ma 1.3w ? 100 ma 300 ma notes: ? i d (continuous) is limited by max rated t j . ? mounted on fr4 board, 25mm x 25mm x 1.57mm. switching waveforms and test circuit downloaded from: http:///
supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate ?product liability indemnification insurance agreement.? supertex inc . does not assume responsibility for use of devices described, and limits its liabilit y to the replacement of the devices determined defective due to workmanship. no responsibility is assumed for possible omissions and inaccuracies. circuitry and specifications are subject to change without notice. for the latest product specifications refer to the supertex inc . (website: http//www .supertex.com) ?2013 supertex inc. all rights reserved. unauthorized use or reproduction is prohibited. supertex inc. 1235 bordeaux drive, sunnyvale, ca 94089 t el: 408-222-8888 www.supertex.co m 3 dn3145 (the package drawing(s) in this data sheet may not relect the most current speciications. for the latest package outline information go to http://www.supertex.com/packaging.html .) doc.# dsfp-dn3145 a062713 3-lead to-243aa (sot-89) package outline (n8) symbol a b b1 c d d1 e e1 e e1 h l dimensions (mm) min 1.40 0.44 0.36 0.35 4.40 1.62 2.29 2.00 ? 1.50 bsc 3.00 bsc 3.94 0.73 ? nom - - - - - - - - - - max 1.60 0.56 0.48 0.44 4.60 1.83 2.60 2.29 4.25 1.20 jedec registration to-243, variation aa, issue c, july 1986. ? this dimension differs from the jedec drawing drawings not to scale . supertex doc. #: dspd-3to243aan8, version f111010. b b1 d d1 e h e1 c a 1 2 3 e e1 top vi ew side view l downloaded from: http:///
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