Bay Linear Inspire the Linear Power B3520/B3540 N-CHANNEL DMOS FET SWITCH High Gain Level Shifter Series Description Features 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. • • • • Low capacitance – 0.3pF typical Low threshold – <1.5V max Fast switching – ton<1ns CMOS and TTL Compatible Input 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. Application • • • • Pin Connection Ordering Information SOT-143 Package Lead Code Identification (top view) Package Body Substrate 1 4 Gate Source 2 3 Drain Bay Linear, Inc LED Drivers Level Shifting Switch Drivers VHF/UHF Amplifiers Part No. SOT-143 B3520K4 -X.X SOT-143 B3540K4-XX 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com B3520/B3540 Electrical Specifications (TC = +25°C unless otherwise noted) Parameter STATIC Drain-Source Breakdown Voltage Source-Drain Breakdown Voltage DrainSubstrate Breakdown Voltage SourceSubstrate Breakdown Voltage Drain-Source Leakage Source Drain Leakage Gate Leakage Gate Threshold Voltage Drain-Source ON Resistance Min B3520 Typ ID=1 µA VGS=VBS=0 15 25 BVSD IS=50 nA VGD=VBD=-5 10 15 V BVDB ID=50 nA, VGB=0 Source Open 10 15 V BVSB ID=10 µA, VGB=0 Drain Open 10 15 V Symbol Test Conditions BVDS ID (OFF) VGS/BS=-5 VGS/BS=0 IS (OFF) VGD/BS=-5 VGS/BS=0 IGBS VDB/SB= 0 15 25 VGS=20V Max Units V 50 0.1 1 nA µA nA 0.1 1 µA 1 10 µA 0.7 1.5 V 50 VDS=15V 0.7 1.5 VGS=2.4V 140 175 140 175 Ohm VGS=4.5V 40 60 40 60 Ohm Symbol Test Conditions Min B3520 Typ gfS VDS= 10V ID= 20mA f = 1MHz, VSB=0 Pulsed 14 18 VDS=VGS ID=1 µA VSB=0 ID=1 mA VSB= 0V DYNAMIC Gate Node C(gs+gd+gb) Capacitance Drain Node C(gd+db) VDS= 10V Capacitance VGS=VBS= -15V Source Node f = 1MHz C(gs+sb) Capacitance Reverse Transfer C(dg) Capacitance Turn On Delay V∞= 10V td(on) Time VG(on)= 10V Rise Time tr RL= 680 Ω RG= 51Ω Turn Off Delay Td(off) CL = 1.5pF Time Bay Linear, Inc 1 B3540 Typ 10 rDS (ON) Common-Source Forward Transconductance 1 Min 1 VGS (th) Parameter VDS=10V VDS=15V VDS=10V Max 0.3 Max 0.3 Min B3540 Typ 14 18 Max Units V 4.5 6.0 4.5 6.0 pF 2.0 3.0 2.0 3.0 pF 5.5 7.0 5.5 7.0 pF 0.3 0.5 0.3 0.5 pF 0.7 1.0 0.7 1.0 ns 0.8 1.0 0.8 1.0 ns 1.5 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 1.5 ns www.baylinear.com B3520 Switching Time Test Circuit To Scope +VDD RL 510 Ω VOUT To Scope Input Pulse: td, tr < 1ns VIN Pulse width: 100 ns Rep rate: 1 MHz 51 Ω Sampling Scope Tr < 360 ps RIN = 1 MΩ CIN = 2 pF BW = 500 MHz +5 V VIN 50% 0V td(on) td(off) VDD VOUT 0V Bay Linear, Inc 90% 50% 10% tf 2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 tf www.baylinear.com B3520 Absolute Maximum Ratings, Tc = +25°C Parameter Unit Absolute Maximum[1] SOT-143 Drain-Source Voltage V +15 Gate-Source Voltage V -0.3 / +20 Gate-Drain Voltage V -0.3 / +20 Continuous Drain Current mA 50 Power dissipation Tc=25 mW 300 Linear Derating Factor mW/C 3 Junction Temperature °C -55 to +125 Storage Temperature °C -55 to +125 Notes: 1. 2. Operation in excess of any one of these conditions may result in permanent damage to the device TC = +25°C, where TC 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