dn1509 features high input impedance low input capacitance fast switching speeds low on-resistance free from secondary breakdown low input and output leakages applications normally-on switches battery operated systems converters linear ampli? ers constant current sources telecom ? ? ? ? ? ? ? ? ? ? ? ? n-channel depletion-mode vertical dmos fet general description the supertex dn1509 is suitable for high voltage transient protection for ldo in automobile applications during load dump conditions. this low threshold, depletion-mode (normally-on) transistor utilizes 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 coef? cient 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 very low threshold voltage, high breakdown voltage, high input impedance, low input capacitance, and fast switching speeds are desired. ordering information device package option bv dsx /bv dgx r ds(on) (max) i dss (typ) to-243aa (sot-89) dn1509 DN1509N8-G 90v 6.0 540ma -g indicates package is rohs compliant (green) 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 -55c to +150c soldering temperature 1 +300c 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. note 1 . distance of 1.6mm from case for 10 seconds. pin con? guration d gd s to-243aa (sot-89) (top view ) product marking for to-243aa: where = 2-week alpha date code dn5a
2 dn1509 electrical characteristics (t a =25c unless otherwise speci? ed) symbol parameter min typ max units conditions bv dsx drain-to-source breakdown voltage 90 - - v v gs = -5v, i d = 1.0a v gs(off) gate-to-source off voltage -1.8 - -3.5 v i d = 10a v gs(off) v gs(off) change with temperature - - 4.5 mv/ o cv ds = 15v, i d = 10a i gss gate body leakage - - 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 300 540 - ma v gs = 0v, v ds = 25v r ds(on) static drain-to-source on-state resistance - 3.2 6.0 v gs = 0v, i d = 200ma r ds(on) change in r ds(on) with temperature - - 1.1 %/ o cv gs = 0v, i d = 200ma g fs forward transconductance 200 - - mmho v ds = 10v, i d = 200ma c iss input capacitance - 70 150 pf v gs = -10v, v ds = 25v, f = 1mhz c oss common source output capacitance - 20 40 c rss reverse transfer capacitance - 6.0 15 t d(on) turn-on delay time - 12 30 ns v dd = 25v, i d = 100ma, r gen = 25? t r rise time - 16 45 t d(off) turn-off delay time - 15 45 t f fall time - 25 60 v sd diode forward voltage drop - - 1.8 v v gs = 0v, i sd = 500ma t rr reverse recovery time - 400 - ns v gs = 0v, i sd = 500ma 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. switching waveforms and test circuit pulse generator v dd r l d.u.t output 0v -10v 0v v dd t d(off) input output t r t f t d(on) t (on) t (off) 10% 90% 90% 10% 90% 10% r gen input thermal characteristics package i d (continuous) ? id (pulsed) power dissipation @t a = 25 o c jc ( o c/w) ja ( o c/w) i dr ? i drm to-243aa 360ma 500ma 1.6w ? 15 78 ? 360ma 500ma notes: ? id (continuous) is limited by max rated t j of 150 o c. ? mounted on fr4 board, 25mm x 25mm x 1.57mm.
3 doc.# dsfp-dn1509 nr111006 dn1509 (the package drawing(s) in this data sheet may not re? ect the most current speci? cations. for the latest package outline information go to http://www.supertex.com/packaging.html .) to-243aa (sot-89) package outline (n8) exclusion zone no vias/traces in this area. shape of pad may vary. 3.00 bsc 1.50 bsc 0.5 0.06 0.42 0.06 1.05 0.15 2.45 0.15 4.10 0.15 1.72 0.10 4.50 0.10 2.21 0.08 0.40 0.05 1.50 0.10 notes: 1. all dimensions are in millimeters; all angles in degrees. top view side view bottom view
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