2SK972
Silicon N-Channel MOS FET
November 1996
Application
High speed power switching
Features
Low on-resistance
High speed switching
Low drive current
4 V gate drive device
Can be driven from 5 V source
Suitable for motor drive, DC-DC converter, power switch and solenoid drive
Outline
123
TO-220AB
1. Gate
2. Drain
(Flange)
3. Source
D
G
S
2SK972
2
Absolute Maximum Ratings (Ta = 25°C)
Item Symbol Ratings Unit
Drain to source voltage VDSS 60 V
Gate to source voltage VGSS ±20 V
Drain current ID25 A
Drain peak current ID(pulse)*1100 A
Body to drain diode reverse drain current IDR 25 A
Channel dissipation Pch*250 W
Channel temperature Tch 150 °C
Storage temperature Tstg –55 to +150 °C
Notes 1. PW 10 µs, duty cycle 1%
2. Value at TC = 25°C
2SK972
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Electrical Characteristics (Ta = 25°C)
Item Symbol Min Typ Max Unit Test conditions
Drain to source breakdown
voltage V(BR)DSS 60——V I
D
= 10 mA, VGS = 0
Gate to source breakdown
voltage V(BR)GSS ±20——V I
G
= ±100 µA, VDS = 0
Gate to source leak current IGSS ——±10 µAV
GS = ±16 V, VDS = 0
Zero gate voltage drain current IDSS 250 µAV
DS = 50 V, VGS = 0
Gate to source cutoff voltage VGS(off) 1.0 2.0 V ID = 1 mA, VDS = 10 V
Static drain to source on state
resistance RDS(on) 0.033 0.04 ID = 15 A, VGS = 10 V *1
0.05 0.06 ID = 15 A, VGS = 4 V *1
Forward transfer admittance |yfs| 12 20 S ID = 15 A, VDS = 10 V * 1
Input capacitance Ciss 1400 pF VDS = 10 V, VGS = 0,
f = 1 MHz
Output capacitance Coss 720 pF
Reverse transfer capacitance Crss 220 pF
Turn-on delay time td(on) —15—nsI
D
= 15 A, VGS = 10 V,
RL = 2
Rise time tr 130 ns
Turn-off delay time td(off) 270 ns
Fall time tf 180 ns
Body to drain diode forward
voltage VDF 1.3 V IF = 25 A, VGS = 0
Body to drain diode reverse
recovery time trr 135 ns IF = 25 A, VGS = 0,
diF/dt = 50 A/µs
Note 1. Pulse test
2SK972
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50 1000 Case Temperature TC (°C) 150
20
Channel Dissipation Pch (W)
40
60 Power vs. Temperature Derating Maximum Safe Operation Area
Drain Current ID (A)
0.3 1.0 3
10
30
100
10
300
500
Drain to Source Voltage VDS (V)
0.1 100
3
30
0.5
1.0 Ta = 25°C
10 µs
100 µs
1 ms
PW = 10 ms (1 Shot)
DC Operation (TC = 25°C)
Operation in this area is
limited by R
DS (on)
Typical Output Characteristics
6
Drain to Source Voltage VDS (V)
84210
Drain Current ID (A)
0
10
20
30
40
0
50
VGS = 2.5 V
Pulse Test
10 V 8 V
6 V
3.5 V
3.0 V
4.0 V
4.5 V
Typical Transfer Characteristics
3
Gate to Source Voltage VGS (V)
42105
10
20
30
40
50
0
Drain Current ID (A)
TC= 25°C
75°C
VDS = 10 V
Pulse Test –25°C
Drain to Source Saturation Voltage
vs. Gate to Source Voltage
6
Gate to Source Voltage VGS (V)
842010
2
3
4
5
0
1
Drain to Source Saturation Voltage
VDS (on) (V)
Pulse Test
ID = 50 A
10 A
20 A
10
Drain Current ID (A)
2052 100
0.02
0.05
0.1
0.2
0.5
1
0.01
0.005 50
Static Drain to Source on State
Resistance vs. Drain Current
Static Drain to Source on Static Resistance
RDS (on) ()
VGS = 4 V
10 V
Pulse Test
80
Case Temperature TC (°C)
120400
0.02
0.04
0.06
0.08
0.10
–40
0160
Static Drain to Source on State
Resistance vs. Temperature
Static Drain to Source on State Resistance
RDS (on) ()
ID = 20 A
20 A
Pulse Test
VGS = 4 V
VGS = 10 V
10 A
5 A
10 A 5 A
Forward Transfer Admittance
vs. Drain Current
100
50
20
10
5
2
1
0.5 1.0 2 510 50
Drain Current ID (A)20
Forward Transfer Admittance yfs (S)
TC = 25°C
VDS = 10 V
Pulse Test –25°C
75°C
2SK972
5
1,000
500
200
100
50
20
10
0.5 1.0 5 50
Reverse Drain Current IDR (A)
10
220
Body to Diode Reverse
Recovery Time
Reverse Recovery Time trr (ns)
di/dt = 50 A/µs, Ta = 25°C
VGS = 0
Pulse Test
Typical Capacitance vs.
Drain to Source Voltage
10,000
3,000
1,000
300
30
10
Capacitance C (pF)
01020 50
Drain to Source Voltage VDS (V)
30
100
40
VGS = 0
f = 1 MHz
Ciss
Coss
Crss
100
80
60
40
20
020 60
80
Gate Charge Qg (nc)
40
20
16
12
8
4
0
Dynamic Input Characteristics
Drain to Source Voltage VDS (V)
Gate to Source Voltage VGS (V)
100
ID = 25 A
VDS VGS
VDD = 50 V
10 V
25 V
VDD = 50 V
25 V
10 V
Switching Characteristics
1000
500
200
100
20
10
0.5 1.0 5 50
Drain Current ID (A)
10
220
Switching Time t (ns)
td (off)
tf
trVGS = 10 V VDD = 30 V
PW = 2µs, duty < 1 %
td (on)
50 •
2SK972
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50
40
30
20
10
0 0.4 1.2 1.6 2.0
Source to Drain Voltage VSD (V)
0.8
Reverse Drain Current vs.
Source to Drain Voltage
Reverse Drain Current IDR (A)
VGS = 0, –5 V
Pulse Test
5 V
10 V
15 V
3
1.0
0.3
0.1
0.03
0.01
10 µ1 m 10 m 100 m
Pulse Width PW (s)
100µ110
Normalized Transient Thermal Impedance vs. Pulse Width
Normalized Transient Thermal Impedance γS (t)
θch–c(t) = γS (t) · θch–c
θch–c = 2.5°C/W, TC = 25°C
PDM
PW D = PW
T
T
TC = 25°C
D = 1
0.5
0.05
1 Shot Pulse
0.2
0.1
0.02
0.01
Vin Monitor
Vout Monitor
RL
50
Vin = 10 V
D.U.T
.
VDD = 30 V
.
Switching Time Test Circuit
Vin 10 %
90 %
90 %
90 %
10 %
td (on) td (off)
trtf
Vout 10 %
Wavewforms
2SK972
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Notice
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part of this document without Hitachi’s permission.
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any other reasons during operation of the user’s unit according to this document.
4. Circuitry and other examples described herein are meant merely to indicate the characteristics and
performance of Hitachi’s semiconductor products. Hitachi assumes no responsibility for any
intellectual property claims or other problems that may result from applications based on the examples
described herein.
5. No license is granted by implication or otherwise under any patents or other rights of any third
party or Hitachi, Ltd.
6. MEDICAL APPLICATIONS: Hitachi’s products are not authorized for use in MEDICAL
APPLICATIONS without the written consent of the appropriate officer of Hitachi’s sales company.
Such use includes, but is not limited to, use in life support systems. Buyers of Hitachi’s products are
requested to notify the relevant Hitachi sales offices when planning to use the products in MEDICAL
APPLICATIONS.