Supertex inc. LND250 N-Channel Depletion-Mode DMOS FET General Description Features ► ► ► ► ► ► ► Free from secondary breakdown Low power drive requirement Ease of paralleling Excellent thermal stability Integral source-drain diode High input impedance and low CISS ESD gate protection The LND250 is a high voltage N-channel depletion mode (normally-on) transistor utilizing Supertex’s lateral DMOS technology. The gate is ESD protected. The LND250 is ideal for high voltage applications in the areas of normally-on switches, precision constant current sources, voltage ramp generation and amplification. Applications ►► ►► ►► ►► ►► ►► Solid state relays Normally-on switches Converters Power supply circuits Constant current sources Input protection circuits Product Summary Ordering Information Part Number Package Options Packing LND250K1-G* TO-236AB (SOT-23) 3000/Reel -G denotes a lead (Pb)-free / RoHS compliant package * Part is not recommended for new designs. Please refer to LND150K1-G. RDS(ON) IDSS (max) (min) 500 1.0kΩ 1.0mA (V) Pin Configuration Absolute Maximum Ratings Parameter Value Drain-to-source BVDSX Drain-to-gate BVDGX Gate-to-source ±20V Operating and storage temperature BVDSX/BVDGX SOURCE DRAIN -55OC to +150OC 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. GATE TO-236AB (SOT-23) Product Marking NDEW W = Code for Week Sealed = “Green” Packaging TO-236AB (SOT-23) Packages may or may not include the following marks: Si or Doc.# DSFP-LND250 B012314 Supertex inc. www.supertex.com LND250 Thermal Characteristics ID Package ID Power Dissipation θja (continuous)† (mA) (pulsed) (mA) @TA = 25OC (W) (OC/W) (mA) IDR IDRM† 13 30 0.36 203 13 30 TO-236AB (SOT-23) (mA) Notes: † ID (continuous) is limited by max rated Tj. Electrical Characteristics (T A = 25OC unless otherwise specified) Sym Parameter Min Typ Max Units BVDSX Drain-to-source breakdown voltage 500 - - V VGS = -10V, ID = 1.0mA VGS(OFF) Gate-to-source off voltage -1.0 - -3.0 V VGS = 25V, ID = 100nA - - 5.0 - - 100 nA VGS = ± 20V, VDS = 0V - - 100 nA VGS = -10V, VDS = 450V - - 100 µA VDS = 0.8V Max Rating, VGS = -10V, TA = 125OC 1.0 - 3.0 mA VGS = 0V, VDS = 25V Static drain-to-source on-state resistance - 850 1000 Ω VGS = 0V, ID = 0.5mA Change in RDS(ON) with temperature - - 1.2 %/ C VGS = 0V, ID = 0.5mA 1.0 2.0 - ΔVGS(OFF) Change in VGS(OFF) with temperature IGSS Gate body leakage current ID(OFF) IDSS Drain-to-source leakage current Saturated drain-to-source current RDS(ON) ΔRDS(ON) GFS Forward transductance CISS Input capacitance - 7.5 10 COSS Common source output capacitance - 2.0 3.5 CRSS Reverse transfer capacitance - 0.5 1.0 td(ON) Turn-on delay time - 0.09 - Rise time - 0.45 - Turn-off delay time - 0.1 - Fall time - 1.3 - Diode forward voltage drop - - Reverse recovery time - 200 tr td(OFF) tf VSD trr Conditions mV/ C VGS = 25V, ID = 100nA O O mmho VDS = 0V, ID = 1.0mA pF VGS = -10V, VDS = 25V, f = 1.0MHz µs VDD = 25V, ID = 1.0mA, RGEN = 25Ω 0.9 V VGS = -10V, ISD = 1.0mA - ns VGS = -10V, ISD = 1.0mA Notes: 1. All D.C. parameters 100% tested at 25OC unless otherwise stated. (Pulse test: 300µs pulse, 2% duty cycle.) 2. All A.C. parameters sample tested. Switching Waveforms and Test Circuit 0V INPUT -10V Pulse Generator 10% t(ON) td(ON) VDD OUTPUT 0V Doc.# DSFP-LND250 B012314 VDD 90% t(OFF) tr td(OFF) OUTPUT RGEN tf 10% 10% 90% RL INPUT D.U.T. 90% 2 Supertex inc. www.supertex.com LND250 3-Lead TO-236AB (SOT-23) Package Outline (K1) 2.90x1.30mm body, 1.12mm height (max), 1.90mm pitch D 3 E1 E Gauge Plane 0.25 1 e b e1 Seating Plane L L1 2 View B Top View View B A A A2 Seating Plane A1 Side View Symbol Dimension (mm) View A - A A A A1 A2 b D E E1 MIN 0.89 0.01 0.88 0.30 2.80 2.10 1.20 NOM - - 0.95 - 2.90 - 1.30 MAX 1.12 0.10 1.02 0.50 3.04 2.64 1.40 e e1 L L1 0.20 † 0.95 BSC 1.90 BSC 0.50 0.60 0.54 REF θ 0O 8O JEDEC Registration TO-236, Variation AB, Issue H, Jan. 1999. † This dimension differs from the JEDEC drawing. Drawings not to scale. Supertex Doc.#: DSPD-3TO236ABK1, Version C041309. (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) 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 liability 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) Supertex inc. ©2014 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Doc.# DSFP-LND250 B012314 3 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com