dn3545 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 linear ampli? ers constant current sources power supply circuits telecom ? ? ? ? ? ? ? ? ? ? ? ? ? general description these depletion-mode (normally-on) transistors utilize an advanced vertical dmos structure and supertexs well- proven silicon-gate manufacturing process. this combination produces devices 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, these devices are 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 soldering temperature* 300 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. *distance of 1.6mm from case for 10 seconds. ordering information bv dsx / bv dgx r ds(on) (max) i dss (min) package options to-92 to-243aa (sot-89) 450v 20 200ma dn3545n3 dn3545n8 dn3545n3-g DN3545N8-G -g indicates package is rohs compliant (green) n-channel depletion-mode vertical dmos fet package options d g s to-92 (front view) to-243aa (top view) g d s d
2 dn3545 notes: 1. i d (continuous) is limited by max rated t j . 2. mounted on fr4 board, 25mm x 25mm x 1.57mm. signi? cant p d increase possible on ceramic substrate. switching waveforms and test circuit 90% 10% 90% 90% 10% 10% pulse generator v dd r l output d.u.t. t (on) t d(on) t (off) t d(off) t f t r input input output 0v v dd r gen 0v -10v thermal characteristics package i d (continuous) 1 i d (pulsed) power dissipation @t a = 25 o c jc o c/w ja o c/w i dr 1 i drm t0-92 136ma 550ma 0.74w 125 170 136ma 550ma to-243aa 200ma 550ma 1.6w 2 15 78 2 200ma 550ma electrical characteristics (@25 o c unless otherwise speci? ed) symbol parameter min typ max units conditions bv dsx drain-to-source breakdown voltage 450 - - v v gs = -5v, i d = 100a v gs(off) gate-to-source off voltage -1.5 - -3.5 v v ds = 25v, i d = 10a v gs(off) change in v gs(off) with temperature - - 4.5 mv/ o cv ds = 25v, 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 gs = -5v, v ds = max rating - - 1.0 ma v gs = -5v, v ds = 0.8 max rating t a = 125c i dss saturated drain-to-source current 200 - - ma v gs = 0v, v ds = 15v r ds(on) static drain-to-source on-state resistance --20v gs = 0v, i d = 150ma r ds(on) change in r ds(on) with temperature - - 1.1 %/ o cv gs = 0v, i d = 150ma g fs forward transductance 150 - - m i d = 100ma, v ds = 10v c iss input capacitance - - 360 pf v gs = -5v, v ds = 25v, f = 1mhz c oss common source output capacitance - - 40 c rss reverse transfer capacitance - - 15 t d(on) turn-on delay time - - 20 ns v dd = 25v, i d = 150ma, r gen = 25,v gs = 0v to -10v t r rise time - - 30 t d(off) turn-off delay time - - 30 t f fall time - - 40 v sd diode forward voltage drop - - 1.8 v v gs = -5v, i sd = 150ma t rr reverse recovery time - 800 - ns v gs = -5v, i sd = 150ma
3 dn3545 typical performance curves i d (amperes) v ds (volts) v gs = +2.0v output characteristics -0.5v -0.8v -1.0v -1.5v saturation characteristics i d (amperes) v ds (volts) v gs = +2v +1.0v 0v -0.5v -0.8v -1.0v g fs (siemens) i d (amperes) transconductance vs. drain current power dissipation vs. ambient temperature pd (watts) t a ( o c) 0v -1.5v 0 50 100 150 200 250 300 350 400 450 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.0v 0246810 0 0.1 0.2 0.3 0.4 0.5 0.6 0 0.1 0.2 0.3 0.4 0 0.2 0.4 0.6 0.8 v ds = 10v t a = -55 o c t a = 25 o c t a = 125 o c 0 25 50 75 100 125 150 0 0.5 1.0 1.5 2.0 to-243aa to-92 maximum rated safe operating area i d (amperes) v ds (volts) 1 1000 100 10 to-243aa (pulsed) t a =25 o c 0.001 0.01 0.1 1.0 to-243aa (dc) to-92 (dc) to-92 (pulsed) thermal response characteristics thermal resistance (normalized) t p (seconds) 1.0 0.8 0.6 0.4 0.2 0 0.001 10 0.01 0.1 1 to-243aa t a = 25 o c p d = 1.6w to-92 t c = 25 o c p d = 1.0w
4 dn3545 typical performance curves (cont.) r ds(on) (ohms) i d (amperes) on resistance vs. drain current v gs(off) and r ds(on) w/ temperature v gs(off) (normalized) t j ( o c) r ds(on) (normalized) transfer characteristics i d (amperes) v gs (volts) v gs (volts) -50 0 50 100 150 0.8 0.9 1.0 1.1 1.2 i d = 100a v gs = -5v -3 -2 -1 0 1 2 0 0.2 0.4 0.6 0.8 1.0 v ds = 10v t a = -55 o c t a = 125 o c t a = 25 o c 0.5 0.7 0.9 1.1 1.3 1.5 0.4 0.8 1.2 1.6 2.0 2.4 -50 0 50 100 150 r ds(on) @ 0v, 150ma v gs(off) @ 10a 0 10203040 0 50 100 150 200 250 300 c rss c oss c iss v gs = -5v 0123456 -5 -4 -3 -2 -1 0 1 2 3 i d = 150ma v ds = 30v bv dss (normalized) t j ( o c) bv dss variation with temperature capacitance vs. drain source voltage c (picofarads) v ds (volts) 0 0.2 0.4 0.6 0.8 0 10 20 30 40 50 gate drive dynamic characteristics q (nanocoulombs) g v gs = 0v
5 dn3545 3-lead to-92 surface mount package (n3) 1 2 3 seating plane 1 2 3 front view 0.175 - 0.205 0.170 - 0.210 0.500 min 0.014 - 0.022 0.045 - 0.055 0.095 - 0.105 0.125 - 0.165 0.135 min 0.080 - 0.105 0.014 - 0.022 side view top view notes: all dimensions are in millimeters; all angles in degrees.
6 doc.# dsfp-dn3545 a012207 dn3545 (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 .) 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: all dimensions are in millimeters; all angles in degrees. top view side view bottom view 3-lead to-243aa (sot-89) surface mount package (n8)
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