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DATA SHEET
JUNCTION FIELD EFFECT TRANSISTOR
2SK4028
N-CHANNEL SILICON JUNCTION FIELD EFFECT TRANSISTOR FOR IMPEDANCE CONVERTER OF ECM
DESCRIPTION
The 2SK4028 is suitable for converter of ECM.
PACKAGE DRAWING (Unit: mm)
1.2 0.1 0.3 -0.05
+0.1
MAX. 0.33
FEATURES
* High gain
1.2 0.1
* Low noise -115 dB (VDD = 2.0 V, C = 5 pF, RL = 2.2 k) * Ultra thin thickness package t = 0.3 mm TYP.
0.8 0.1
-1.0 dB (VDD = 2.0 V, C = 5 pF, RL = 2.2 k)
3
0 to 0.02
2
1
0.4
0.4
0.13 -0.05
+0.1
ORDERING INFORMATION
PART NUMBER 2SK4028 PACKAGE 3pXSOF03 (0812)
0.2 +0.1 -0
ABSOLUTE MAXIMUM RATINGS (TA = 25C)
Drain to Source Voltage (VGS = -1.0 V) Gate to Drain Voltage Drain Current Gate Current Total Power Dissipation Junction Temperature Storage Temperature VDSX VGDO ID IG PT Tj Tstg 20 -20 10 10 100 125 -55 to +125 V V mA mA mW C C
EQUIVALENT CIRCUIT
2
3 1 1: Source 2: Drain 3: Gate
Caution Please take care of ESD (Electro Static Discharge) when you handle the device in this document.
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information.
Document No. D17529EJ1V0DS00 (1st edition) Date Published April 2005 NS CP(K) Printed in Japan
2005
2SK4028
ELECTRICAL CHARACTERISTICS (TA = 25C)
CHARACTERISTICS Zero Gate Voltage Drain Cut-off Current Gate Cut-off Voltage Forward Transfer Admittance SYMBOL IDSS VGS(off) | yfs1 | | yfs2 | Input Capacitance Voltage Gain Ciss GV TEST CONDITIONS VDS = 2.0 V, VGS = 0 V VDS = 2.0 V, ID = 1.0 A VDS = 2.0 V, ID = 30 A, f = 1.0 kHz VDS = 2.0 V, VGS = 0 V, f = 1.0 kHz VDS = 2.0 V, VGS = 0 V, f = 1.0 MHz VDD = 2.0 V, C = 5 pF, RL = 2.2 k, VIN = 10 mV, f = 1 kHz Noise Voltage NV VDD = 2.0 V, C = 5 pF, RL = 2.2 k, A-curve -115 dB 320 800 MIN. 90 TYP. 250 -0.37 470 1600 4.0 -1.0 MAX. 430 -1.0 UNIT
A
V
S S
pF dB
IDSS CLASSIFICATION
MARKING IDSS (A) DE 90 to 180 DF 150 to 240 DH 210 to 350 DJ 320 to 430
GAIN TEST CIRCUIT
VDD RL Out
C
NOISE VOLTAGE TEST CIRCUIT
VDD RL JIS A NV (r.m.s)
C
2
Data Sheet D17529EJ1V0DS
2SK4028
TYPICAL CHARACTERISTICS (TA = 25C)
DERATING FACTOR OF POWER DISSIPATION DRAIN CURRENT vs. DRAIN TO SOURCE VOLTAGE
120
dT - Derating Factor - %
1000
Pulsed 0.20 V
80 60 40 20 0 0 25 50 75 100 125 150 175
TA - Ambient Temperature - C
ID - Drain Current - A
100
800 600 400
0.15 V 0.10 V 0.05 V
200 0 0 2 4 6
-0.05 V VGS = 0 V
8
10
VDS - Drain to Source Voltage - V
GATE TO SOURCE CURRENT vs. GATE TO SOURCE VOLTAGE IGS - Gate to Source Current - A
40 30 20 10 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8
DRAIN CURRENT vs. GATE TO SOURCE VOLTAGE
-10 -20 -30 -40
VGS - Gate to Source Voltage - V
ID - Drain Current - A
VGS - Gate to Source Voltage - V
INPUT CAPACITANCE vs. DRAIN TO SOURCE VOLTAGE
10
FORWARD TRANSFER ADMITTANCE AND GATE CUT-OFF VOLTAGE vs. ZERO GATE VOLTAGE DRAIN CURRENT
10
| yfs | - Forward Transfer Admittance - mS VGS(off) - Gate Cut-off Voltage - V
VGS = 0 V f = 1.0 MHz
VDS = 2.0 V
Ciss - Input Capacitance - pF
| yfs | 1 VGS(off)
1 1 10 100
0.1 10 100 1000
VDS - Drain to Source Voltage - V
IDSS - Zero Gate Voltage Drain Current - A
Data Sheet D17529EJ1V0DS
3
2SK4028
VOLTAGE GAIN vs. DRAIN CURRENT
NOISE VOLTAGE vs. DRAIN CURRENT
2
NV - Noise Voltage - dB
-110
1
GV - Voltage Gain - dB
0 -1 -2 -3 -4 -5 10
VDD = 2.0 V C = 5 pF RL = 2.2 k VIN = 10 mV f = 1 kHz
-112 -114 -116 -118 -120
VDD = 2.0 V C = 5 pF RL = 2.2 k
100
IDSS - Drain Current - A
1000
10
100
IDSS - Drain Current - A
1000
4
Data Sheet D17529EJ1V0DS
2SK4028
* The information in this document is current as of April, 2005. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC Electronics data sheets or data books, etc., for the most up-to-date specifications of NEC Electronics products. Not all products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information. * No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Electronics. NEC Electronics assumes no responsibility for any errors that may appear in this document. * NEC Electronics does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of NEC Electronics products listed in this document or any other liability arising from the use of such products. No license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Electronics or others. * Descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software and information in the design of a customer's equipment shall be done under the full responsibility of the customer. NEC Electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. * While NEC Electronics endeavors to enhance the quality, reliability and safety of NEC Electronics products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. To minimize risks of damage to property or injury (including death) to persons arising from defects in NEC Electronics products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. * NEC Electronics products are classified into the following three quality grades: "Standard", "Special" and "Specific". The "Specific" quality grade applies only to NEC Electronics products developed based on a customerdesignated "quality assurance program" for a specific application. The recommended applications of an NEC Electronics product depend on its quality grade, as indicated below. Customers must check the quality grade of each NEC Electronics product before using it in a particular application. "Standard": Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots. "Special": Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support). "Specific": Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. The quality grade of NEC Electronics products is "Standard" unless otherwise expressly specified in NEC Electronics data sheets or data books, etc. If customers wish to use NEC Electronics products in applications not intended by NEC Electronics, they must contact an NEC Electronics sales representative in advance to determine NEC Electronics' willingness to support a given application. (Note) (1) "NEC Electronics" as used in this statement means NEC Electronics Corporation and also includes its majority-owned subsidiaries. (2) "NEC Electronics products" means any product developed or manufactured by or for NEC Electronics (as defined above).
M8E 02. 11-1

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