Si7872DP
New Product
Vishay Siliconix
Dual N-Channel 30-V (D-S) MOSFET with Schottky Diode
PRODUCT SUMMARY
VDS (V)
Channel-1 30 Channel-2
rDS(on) (W)
0.022 @ VGS = 10 V 0.030 @ VGS = 4.5 V 0.022 @ VGS = 10 V 0.028 @ VGS = 4.5 V
ID (A)
10 8 10 8
FEATURES
D LITTLE FOOT Plust Schottky D PWM Optimized D New Low Thermal Resistance PowerPAK package with low 1.07 mm profile
APPLICATIONS
D Asymmetrical Buck-Boost DC/DC Converter
SCHOTTKY PRODUCT SUMMARY
VDS (V)
30
VSD (V) Diode Forward Voltage
0.50 V @ 1.0 A
IF (A)
3.0 D1 D2
PowerPAKt SO-8
6.15 mm
S1
1 2
5.15 mm
G1 S2
3 4
D1
G2
G1
Schottky Diode G2
8 7
D1 D2
6 5
D2
S1 Bottom View N-Channel MOSFET
S2 N-Channel MOSFET
ABSOLUTE MAXIMUM RATINGS (TA = 25_C UNLESS OTHERWISE NOTED)
10 secs Parameter
Drain-Source Voltage Gate-Source Voltage Continuous Drain Current (TJ = 150_C)a Pulsed Drain Current Continuous Source Current (Diode Conduction)a Maximum Power Dissipationa TA = 25_C TA = 70_C TA = 25_C TA = 70_C
Steady State Channel-1
30 "20 6.4 5.1 30 A 1.1 1.4 0.9 -55 to 150 W _C
Symbol
VDS VGS ID IDM IS PD TJ, Tstg
Channel-1
"20 10 7
Channel-2
"12
Channel-2
"12
Unit
V
2.9 3.5 2.2
Operating Junction and Storage Temperature Range
THERMAL RESISTANCE RATINGS
MOSFET Parameter
t v 10 sec Maximum Junction-to-Ambienta Maximum Junction-to-Case (Drain) Notes a. Surface Mounted on 1” x 1” FR4 Board. Document Number: 72035 S-21978—Rev. A, 04-Nov-02 www.vishay.com Steady-State Steady-State RthJA RthJC
Schottky Typical
26 60 4.1
Symbol
Typical
26 60 4.1
Maximum
35 85 6.0
Maximum
35 85 6.0
Unit
_C/W
1
Si7872DP
Vishay Siliconix
New Product
MOSFET SPECIFICATIONS (TJ = 25_C UNLESS OTHERWISE NOTED).
Parameter Static
Gate Threshold Voltage VGS(th) IGSS VDS = VGS, ID = 250 mA VDS = 0 V, VGS = "20 V VDS = 0 V, VGS = "12 V VDS = 24 V, VGS = 0 V Zero Gate Voltage Drain Current IDSS VDS = 24 V, VGS = 0 V, TJ = 85_C On-State Drain Currentb ID(on) VDS = 5 V, VGS = 10 V VGS = 10 V, ID = 7.5 A Drain-Source On-State Resistanceb rDS(on) VGS = 4.5 V, ID = 6.5 A Forward Transconductanceb Diode Forward Voltageb gfs VSD VDS = 15 V, ID = 7.5 A IS = 1 A, VGS = 0 V Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 20 20 0.017 0.016 0.024 0.020 19 21 0.75 0.47 1.2 0.5 V S 0.022 0.022 0.030 0.028 W A 1.0 0.8 3.0 2.0 "100 "100 1 100 15 2000 mA V
Symbol
Test Condition
Min
Typa
Max
Unit
Gate-Body Leakage
nA
Dynamica
Total Gate Charge Qg Qgs Qgd RG td(on) tr td(off) tf trr IF = 1.7 A, di/dt = 100 A/ms VDS = 15 V, VGS = 4.5 V, ID = 7.5 A Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Gate-Drain Charge Ch-2 Ch-1 Gate Resistance Ch-2 Ch-1 Turn-On Delay Time Rise Time Turn-Off Delay Time Fall Time Source-Drain Reverse Recovery Time Ch-2 Ch-1 VDD = 15 V, RL = 15 W ID ^ 1 A, VGEN = 10 V, RG = 6 W Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 Ch-1 Ch-2 7 11.5 2.9 3.8 2.5 3.5 1.5 1.8 9 12 10 10 19 40 9 9 35 28 15 20 17 17 30 66 15 15 55 45 ns W 11 18 nC
Gate-Source Charge
Notes a. Guaranteed by design, not subject to production testing. b. Pulse test; pulse width v 300 ms, duty cycle v 2%.
SCHOTTKY SPECIFICATIONS (TJ = 25_C UNLESS OTHERWISE NOTED)
Parameter
Forward Voltage Drop
Symbol
VF
Test Condition
IF = 1.0 A IF = 1.0 A, TJ = 125_C Vr = 30 V Vr = 30 V, TJ = 100_C Vr = -30 V, TJ = 125_C Vr = 10 V
Min
Typ
0.47 0.36 0.004 0.7 3.0 50
Max
0.50 0.42 0.100 10 20
Unit
V
Maximum Reverse Leakage Current Junction Capacitance
Irm CT
mA pF
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2
Document Number: 72035 S-21978—Rev. A, 04-Nov-02
Si7872DP
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Output Characteristics
30 VGS = 10 thru 5 V 4V 25 I D - Drain Current (A) I D - Drain Current (A) 25 30
Vishay Siliconix
MOSFET CHANNEL−1
Transfer Characteristics
20
20
15
15
10
10
TC = 125_C 25_C
5 3V 0 0 2 4 6 8 10
5
-55 _C 3 4 5
0 0 1 2
VDS - Drain-to-Source Voltage (V)
VGS - Gate-to-Source Voltage (V)
On-Resistance vs. Drain Current
0.040 r DS(on) - On-Resistance ( W ) 1200
Capacitance
0.030 VGS = 4.5 V 0.020
C - Capacitance (pF)
960
Ciss
720
VGS = 10 V
480 Coss
0.010 240 Crss
0.000 0 5 10 15 20 25 30
0 0 5 10 15 20 25 30
ID - Drain Current (A)
VDS - Drain-to-Source Voltage (V)
Gate Charge
10 V GS - Gate-to-Source Voltage (V) VDS = 15 V ID = 7.5 A 8 1.8
On-Resistance vs. Junction Temperature
VGS = 10 V ID = 7.5 A
r DS(on) - On-Resistance (W ) (Normalized)
1.6
1.4
6
1.2
4
1.0
2
0.8
0 0 3 6 9 12 15 Qg - Total Gate Charge (nC) Document Number: 72035 S-21978—Rev. A, 04-Nov-02
0.6 -50
-25
0
25
50
75
100
125
150
TJ - Junction Temperature (_C) www.vishay.com
3
Si7872DP
Vishay Siliconix
New Product
MOSFET CHANNEL−1
On-Resistance vs. Gate-to-Source Voltage
0.06
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Source-Drain Diode Forward Voltage
20 10 r DS(on) - On-Resistance ( W ) I S - Source Current (A)
0.05
0.04 ID = 7.5 A 0.03
TJ = 150_C 1
0.02
TJ = 25_C
0.01
0.1 0.0
0.00 0.2 0.4 0.6 0.8 1.0 1.2 0 2 4 6 8 10 VSD - Source-to-Drain Voltage (V) VGS - Gate-to-Source Voltage (V)
Threshold Voltage
0.4 100
Single Pulse Power, Junction-to-Ambient
0.2 V GS(th) Variance (V) ID = 250 mA -0.0 Power (W)
80
60
-0.2
40
-0.4 20
-0.6
-0.8 -50
-25
0
25
50
75
100
125
150
0 10- 3
10- 2
10- 1 Time (sec)
1
10
TJ - Temperature (_C)
Safe Operating Area, Junction-to-Foot
100 rDS(on) Limited IDM Limited
10 I D - Drain Current (A)
1 ms
10 ms 1 ID(on) Limited TC = 25_C Single Pulse 100 ms 1s 10 s dc BVDSS Limited 1 10 100
0.1
0.01 0.1
VDS - Drain-to-Source Voltage (V) Document Number: 72035 S-21978—Rev. A, 04-Nov-02
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4
Si7872DP
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Normalized Thermal Transient Impedance, Junction-to-Ambient
2
Vishay Siliconix
MOSFET CHANNEL 1
Normalized Effective Transient Thermal Impedance
Duty Cycle = 0.5
0.2
Notes:
0.1 0.1 0.05
PDM t1 t2 1. Duty Cycle, D = t1 t2
0.02 Single Pulse 0.01 10- 4 10- 3 10- 2 10- 1 1 Square Wave Pulse Duration (sec)
2. Per Unit Base = RthJA = 60_C/W 3. TJM - TA = PDMZthJA(t) 4. Surface Mounted
10
100
600
Normalized Thermal Transient Impedance, Junction-to-Case
2
Normalized Effective Transient Thermal Impedance
Duty Cycle = 0.5
0.2 0.1 0.1 0.05 0.02 Single Pulse 0.01 10- 5 10- 4 10- 3 10- 2 Square Wave Pulse Duration (sec) 10- 1 1
Document Number: 72035 S-21978—Rev. A, 04-Nov-02
www.vishay.com
5
Si7872DP
Vishay Siliconix
New Product
MOSFET CHANNEL−2
Transfer Characteristics
30 VGS = 10 thru 4 V 25 I D - Drain Current (A) I D - Drain Current (A) 25
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Output Characteristics
30
20 3V 15
20
15
10
10 TC = 125_C 5 25_C -55 _C
5
0 0 2 4 6 8 10
0 0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
VDS - Drain-to-Source Voltage (V)
VGS - Gate-to-Source Voltage (V)
On-Resistance vs. Drain Current
0.040 r DS(on) - On-Resistance ( W ) 2000
Capacitance
C - Capacitance (pF)
0.032
1600 Ciss 1200
0.024
VGS = 4.5 V VGS = 10 V
0.016
800
0.008
400 Crss
Coss
0.000 0 5 10 15 20 25 30
0 0 5 10 15 20 25 30
ID - Drain Current (A)
VDS - Drain-to-Source Voltage (V)
Gate Charge
10 V GS - Gate-to-Source Voltage (V) VDS = 15 V ID = 7.5 A 8 1.8
On-Resistance vs. Junction Temperature
VGS = 10 V ID = 7.5 A
r DS(on) - On-Resistance (W ) (Normalized)
1.6
1.4
6
1.2
4
1.0
2
0.8
0 0 5 10 15 20 25 Qg - Total Gate Charge (nC) www.vishay.com
0.6 -50
-25
0
25
50
75
100
125
150
TJ - Junction Temperature (_C) Document Number: 72035 S-21978—Rev. A, 04-Nov-02
6
Si7872DP
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Source-Drain Diode Forward Voltage
20 10 r DS(on) - On-Resistance ( W ) 0.04 ID = 7.5 A I S - Source Current (A) 0.05
Vishay Siliconix
MOSFET CHANNEL−2
On-Resistance vs. Gate-to-Source Voltage
TJ = 150_C
0.03
1
TJ = 25_C
0.02
0.01
0.1 0.0
0.00 0.3 0.6 0.9 1.2 1.5 0 2 4 6 8 10 VSD - Source-to-Drain Voltage (V) VGS - Gate-to-Source Voltage (V)
Threshold Voltage
0.4 0.3 80 0.2 V GS(th) Variance (V) 0.1 -0.0 -0.1 -0.2 20 -0.3 -0.4 -50 0 10- 3 ID = 250 mA Power (W) 60 100
Single Pulse Power, Junction-to-Ambient
40
-25
0
25
50
75
100
125
150
10- 2
10- 1 Time (sec)
1
10
TJ - Temperature (_C)
Safe Operating Area, Junction-to-Foot
100 rDS(on) Limited IDM Limited
10 I D - Drain Current (A)
1 ms
10 ms 1 ID(on) Limited TC = 25_C Single Pulse 100 ms 1s 10 s dc BVDSS Limited 1 10 100
0.1
0.01 0.1
VDS - Drain-to-Source Voltage (V) Document Number: 72035 S-21978—Rev. A, 04-Nov-02 www.vishay.com
7
Si7872DP
Vishay Siliconix
New Product
MOSFET CHANNEL−2 TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Normalized Thermal Transient Impedance, Junction-to-Ambient
2
Normalized Effective Transient Thermal Impedance
Duty Cycle = 0.5
0.2
Notes:
0.1 0.1 0.05
PDM t1 t2 1. Duty Cycle, D = t1 t2
0.02 Single Pulse 0.01 10- 4 10- 3 10- 2 10- 1 1 Square Wave Pulse Duration (sec)
2. Per Unit Base = RthJA = 60_C/W 3. TJM - TA = PDMZthJA(t) 4. Surface Mounted
10
100
600
Normalized Thermal Transient Impedance, Junction-to-Case
2
Normalized Effective Transient Thermal Impedance
Duty Cycle = 0.5
0.2 0.1 0.1 0.05 0.02 Single Pulse 0.01 10- 5 10- 4 10- 3 10- 2 Square Wave Pulse Duration (sec) 10- 1 1
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Document Number: 72035 S-21978—Rev. A, 04-Nov-02
Si7872DP
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Reverse Current vs. Junction Temperature
10 TJ = 150_C 1 I F - Forward Current (A)
Vishay Siliconix
SCHOTTKY
Forward Voltage Drop
20 10 I R - Reverse Current (mA)
0.1
30 V 24 V
TJ = 25_C
0.01
0.001
0.0001 0 25 50 75 100 125 150 TJ - Temperature (_C)
1 0.0
0.3
0.6
0.9
1.2
1.5
VF - Forward Voltage Drop (V)
Capacitance
200
160 C - Capacitance (pF)
120
80 Coss 40
0 0 6 12 18 24 30
VDS - Drain-to-Source Voltage (V)
Document Number: 72035 S-21978—Rev. A, 04-Nov-02
www.vishay.com
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