Datasheet LND250K1 Datasheet (Supertex)

N-Channel Depletion-Mode
MOSFET

Ordering Information

BV

/R

DSX

BV

DGX

500V 1.0KΩ 1.0mA LND250K1

*Same as SOT-23. All units shipped on 3,000 piece carrier tape reels.

DS(ON)

(max) (min) TO-236AB*

I

DSS

Order Number / Package

LND250

Product marking for SOT-23:

NDE❋

where ❋ = 2-week alpha date code

Features

❏ ESD gate protection

❏ Free from secondary breakdown

❏ Low power drive requirement

❏ Ease of paralleling

❏ Excellent thermal stability

❏ Integral source-drain diode

❏ High input impedance and low C

Applications

❏ Solid state relays

❏ Normally-on switches

❏ Converters

❏ Power supply circuits

❏ Constant current sources

❏ Input protection circuits

Advanced DMOS Technology

The LND2 is a high voltage N-channel depletion mode (normally­on) transistor utilizing Supertex’s lateral DMOS technology. The
gate is ESD protected.

The LND2 is ideal for high voltage applications in the areas of
normally-on switches, precision constant current sources, volt­age ramp generation and amplification.

ISS

Package Options

Source

Absolute Maximum Ratings

Drain-to-Source Voltage BV

Drain-to-Gate Voltage BV

Gate-to-Source Voltage ±20V

Operating and Storage Temperature -55°C to +150°C

Soldering Temperature* 300°C

Distance of 1.6 mm from case for 10 seconds.

*

12/13/01

Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability
indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to
workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the
Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.

DSX

DGX

Gate Drain

TO-236AB

(SOT-23)

top view

Note: See Package Outline section for dimensions.

1

Thermal Characteristics

Package ID (continuous)* ID (pulsed) Power Dissipation

@TA = 25°C °C/W °C/W

θθ

θ

θθ

jc

TO-236AB 13mA 30mA 0.36W 200 350 13mA 30mA

* ID (continuous) is limited by max rated Tf.

θθ

θ

θθ

ja

I

DR

Electrical Characteristics (@ 25°C unless otherwise specified)

Symbol Parameter Min Typ Max Unit Conditions

BV

DSX

V

GS(OFF)

∆V

GS(OFF)

I

GSS

I

D(OFF)

I

DSS

R

DS(ON)

∆R

DS(ON)

G

FS

C

ISS

C

OSS

C

RSS

t

d(ON)

tr Rise Time 0.45

t

d(OFF)

t

f

V

SD

t

rr

Notes:

1. All D.C. parameters 100% tested at 25°C unless otherwise stated. (Pulse test: 300µs pulse, 2% duty cycle.)

2. All A.C. parameters sample tested.

Drain-to-Source Breakdown Voltage 500 V VGS = -10V, ID = 1.0mA

Gate-to-Source OFF Voltage -1.0 -3.0 V VDS = 25V, ID = 100nA

Change in V

with Temperature 5.0 mV/°CVDS = 25V, ID = 100nA

GS(OFF)

Gate Body Leakage Current 100 nA VGS = ±20V, VDS = 0V

Drain-to-Source Leakage Current 100 nA VGS = -10V, VDS = 450V

100 µAVGS = -10V, VDS = 0.8V max rating

TA =125°C

Saturated Drain-to-Source Current 1.0 3.0 mA VGS = 0V, VDS = 25V

Static Drain-to-Source ON-State Resistance 850 1K Ω VGS = 0V, ID = 0.5mA

Change in R

Forward Transconductance 1.0 2.0 m VGS = 0V, ID = 1.0mA

with Temperature 1.2 %/°CVGS = 0V, ID = 0.5mA

DS(ON)

Ω

Input Capacitance 7.5 10 VGS = -10V, VDS = 25V

Output Capacitance 2.0 3.5 pF

f = 1MHz

Reverse Transfer Capacitance 0.5 1.0

Turn-ON Delay Time 0.09 VDD = 25V, ID = 1.0mA,

R

= 25Ω

GEN

Turn-OFF Delay Time 0.1

µs

Fall Time 1.3

Diode Forward Voltage Drop 0.9 V VGS = -10V, ISD = 1.0mA

Reverse Recovery Time 200 ns VGS = -10V, ISD = 1.0mA

LND250

I

*

DRM

Switching Waveforms and Test Circuit

0V

INPUT

10%

-10V

V

DD

OUTPUT

0V

©2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.

t

d(ON)

t

(ON)

10%

90%

t

r

90%

t

d(OFF)

t

(OFF)

t

F

90%

10%

2

PULSE

GENERATOR

R

gen

INPUT

1235 Bordeaux Drive, Sunnyvale, CA 94089

V

DD

R

L

OUTPUT

D.U.T.

12/13/010

TEL: [phone] • FAX: [phone]

www.supertex.com