Bay Linear
Inspire the Linear Power
N-CHANNEL DMOS FET SWITCH
High Gain Level Shifter
B3520/B3540
Series
Description
The B3520 series consists of enhancement-mode
MOSFETs designed for high speed low-glitch switching
in audio, video, and high-frequency wireless
applications. The CT3520 is optimized as a high speed
driver. With a source feedback resistor it can be uses as
a high speed LED Driver.
The B3520 series uses Bay Linear ULTRA REL DMOS
Process for reliability and robust performance.
These MOSFETs utilize lateral construction to achieve
low capacitance and ultra-fast switching speeds. An
integrated Zener diode provides ESD protection.
Features
•
•
•
•
Low capacitance – 0.3pF typical
Low threshold – <1.5V max
Fast switching – ton<1ns
CMOS and TTL Compatible Input
Application
•
•
•
•
LED Drivers
Level Shifting
Switch Drivers
VHF/UHF Amplifiers
Pin Connection
SOT-143 Package
Lead Code Identification
(top view)
Ordering Information
Package
SOT-143
SOT-143
Part No.
B3520K4 -X.X
B3540K4-XX
Body
Substrate
1
4
Gate
Source
2
3
Drain
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B3520
Absolute Maximum Ratings, T
c
= +25°C
Parameter
Unit
Absolute Maximum
[1]
SOT-143
Drain-Source Voltage
Gate-Source Voltage
Gate-Drain Voltage
Continuous Drain Current
Power dissipation Tc=25
Linear Derating Factor
Junction Temperature
Storage Temperature
V
V
V
mA
mW
mW/C
°C
°C
+15
-0.3 / +20
-0.3 / +20
50
300
3
-55 to +125
-55 to +125
Notes:
1.
2.
Operation in excess of any one of these conditions may result in
permanent damage to the device
T
C
= +25°C, where T
C
is defined to be the temperature at the
package pins where contact is made to the circuit board.
ESD WARNING: Handling Precautions Should Be Taken To Avoid Static Discharge.
Advance Information-
These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations,
computer simulations and/ or initial prototype evaluation.
Preliminary Information-
These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are
subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges.
The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit
design or permit any industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any
industrial property right resulting from the use of the contents shown in the data book. Typical parameters can and do vary in different
applications. Customer’s technical experts must validate all operating parameters including “ Typical” for each customer application.
LIFE SUPPORT AND NUCLEAR POLICY
Bay Linear products are not authorized for and should not be used within life support systems which are intended for surgical
implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without
the specific written consent of Bay Linear President.
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
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