FDPC8012S [ONSEMI]

25V,不对称双 N 沟道,PowerTrench® Power Clip MOSFET;
FDPC8012S
型号: FDPC8012S
厂家: ONSEMI    ONSEMI
描述:

25V,不对称双 N 沟道,PowerTrench® Power Clip MOSFET

开关 光电二极管 晶体管
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October 2014  
FDPC8012S  
PowerTrench® Power Clip  
25V Asymmetric Dual N-Channel MOSFET  
Features  
General Description  
Q1: N-Channel  
This device includes two specialized N-Channel MOSFETs in a  
dual package. The switch node has been internally connected to  
enable easy placement and routing of synchronous buck  
converters. The control MOSFET (Q1) and synchronous  
SyncFETTM (Q2) have been designed to provide optimal power  
efficiency.  
„ Max rDS(on) = 7.0 mΩ at VGS = 4.5 V, ID = 12 A  
Q2: N-Channel  
„ Max rDS(on) = 2.2 mΩ at VGS = 4.5 V, ID = 23 A  
„ Low inductance packaging shortens rise/fall times, resulting in  
lower switching losses  
Applications  
„ MOSFET integration enables optimum layout for lower circuit  
inductance and reduced switch node ringing  
„ Computing  
„ RoHS Compliant  
„ Communications  
„ General Purpose Point of Load  
Pin 1  
V+  
LSG  
GND  
GND  
Pin 1  
V+  
(HSD  
PAD9  
V+(HSD)  
V+  
V+  
HSG  
SW  
HSG  
SW  
GND  
(LSS  
LSG  
GND  
GND  
LSG  
GND  
GND  
HSG  
SW  
SW  
SW  
SW  
SW  
SW  
SW  
SW  
PAD10  
GND(LSS)  
Bottom  
Top  
3.3 mm x 3.3 mm  
MOSFET Maximum Ratings TA = 25 °C unless otherwise noted  
Symbol  
VDS  
VGS  
Parameter  
Q1  
Q2  
25  
12  
88  
Units  
Drain to Source Voltage  
Gate to Source Voltage  
25  
12  
V
V
Drain Current  
-Continuous  
TC = 25 °C  
35  
ID  
-Continuous  
-Pulsed  
TA = 25 °C  
(Note 4)  
131a  
261b  
A
40  
120  
EAS  
Single Pulse Avalanche Energy  
(Note 3)  
50  
181  
mJ  
W
Power Dissipation for Single Operation  
TA = 25 °C  
TA = 25 °C  
1.61a  
0.81c  
2.01b  
0.91d  
PD  
Power Dissipation for Single Operation  
TJ, TSTG  
Operating and Storage Junction Temperature Range  
-55 to +150  
°C  
Thermal Characteristics  
RθJA  
RθJA  
RθJC  
Thermal Resistance, Junction to Ambient  
771a  
1511c  
5.0  
631b  
1351d  
3.5  
Thermal Resistance, Junction to Ambient  
Thermal Resistance, Junction to Case  
°C/W  
Package Marking and Ordering Information  
Device Marking  
Device  
Package  
Reel Size  
13 ”  
Tape Width  
Quantity  
01OD/03OD  
FDPC8012S  
Power Clip 33  
12 mm  
3000 units  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
1
www.fairchildsemi.com  
Electrical Characteristics TJ = 25 °C unless otherwise noted  
Symbol  
Parameter  
Test Conditions  
Type  
Min  
Typ  
Max  
Units  
Off Characteristics  
I
I
D = 250 μA, VGS = 0 V  
D = 1 mA, VGS = 0 V  
Q1  
Q2  
25  
25  
BVDSS  
Drain to Source Breakdown Voltage  
V
ΔBVDSS  
ΔTJ  
Breakdown Voltage Temperature  
Coefficient  
ID = 250 μA, referenced to 25 °C  
D = 10 mA, referenced to 25 °C  
Q1  
Q2  
18  
22  
mV/°C  
I
V
V
DS = 20 V, VGS = 0 V  
DS = 20 V, VGS = 0 V  
Q1  
Q2  
1
500  
μA  
μA  
IDSS  
IGSS  
Zero Gate Voltage Drain Current  
Gate to Source Leakage Current,  
Forward  
VGS = 12 V/-8 V, VDS= 0 V  
V
Q1  
Q2  
±100  
±100  
nA  
nA  
GS = 12 V/-8 V, VDS= 0 V  
On Characteristics  
V
V
GS = VDS, ID = 250 μA  
GS = VDS, ID = 1 mA  
Q1  
Q2  
0.8  
1.1  
1.3  
1.6  
2.2  
2.2  
VGS(th)  
Gate to Source Threshold Voltage  
V
ΔVGS(th)  
ΔTJ  
Gate to Source Threshold Voltage  
Temperature Coefficient  
ID = 250 μA, referenced to 25 °C  
D = 10 mA, referenced to 25 °C  
VGS = 4.5 V, ID = 12 A  
Q1  
Q2  
-4  
-4  
mV/°C  
I
5.2  
7.5  
7.0  
10.5  
Q1  
Q2  
V
GS = 4.5 V, ID = 12 A,TJ =125 °C  
rDS(on)  
Drain to Source On Resistance  
Forward Transconductance  
mΩ  
V
V
GS = 4.5 V, ID = 23 A  
GS = 4.5 V, ID = 23 A ,TJ =125 °C  
1.6  
2.3  
2.2  
3.2  
V
V
DS = 5 V, ID = 13 A  
DS = 5 V, ID = 26 A  
Q1  
Q2  
79  
200  
gFS  
S
Dynamic Characteristics  
Q1  
Q2  
1075  
3456  
Q1:  
Ciss  
Coss  
Crss  
Rg  
Input Capacitance  
pF  
pF  
pF  
Ω
V
DS = 13 V, VGS = 0 V, f = 1 MHZ  
Q1  
Q2  
250  
885  
Output Capacitance  
Reverse Transfer Capacitance  
Gate Resistance  
Q2:  
VDS = 13 V, VGS = 0 V, f = 1 MHZ  
Q1  
Q2  
50  
130  
Q1  
Q2  
0.1  
0.1  
0.4  
0.5  
2.0  
2.0  
Switching Characteristics  
Q1  
Q2  
6
12  
td(on)  
tr  
td(off)  
tf  
Turn-On Delay Time  
Rise Time  
ns  
ns  
Q1:  
Q1  
Q2  
2
3
V
DD = 13 V, ID = 13 A, RGEN = 6 Ω  
Q1  
Q2  
19  
34  
Q2:  
Turn-Off Delay Time  
Fall Time  
ns  
VDD = 13 V, ID = 26 A, RGEN = 6 Ω  
Q1  
Q2  
2
3
ns  
Q1  
Q2  
8
25  
Q1  
VDD = 13 V,  
Qg  
Total Gate Charge  
Gate to Source Gate Charge  
Gate to Drain “Miller” Charge  
VGS = 0 V to 4.5 V  
nC  
nC  
nC  
I
D = 13 A  
Q1  
Q2  
2.3  
7.8  
Qgs  
Qgd  
Q2  
VDD = 13 V,  
Q1  
Q2  
2.0  
6.4  
I
D = 26 A  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
2
www.fairchildsemi.com  
Electrical Characteristics TJ = 25 °C unless otherwise noted  
Symbol  
Parameter  
Test Conditions  
Type  
Min  
Typ  
Max  
Units  
Drain-Source Diode Characteristics  
V
V
GS = 0 V, IS = 13 A  
GS = 0 V, IS = 26 A  
(Note 2) Q1  
(Note 2) Q2  
0.8  
0.8  
1.2  
1.2  
VSD  
trr  
Source to Drain Diode Forward Voltage  
Reverse Recovery Time  
V
Q1  
Q2  
20  
27  
35  
43  
Q1  
ns  
nC  
IF = 13 A, di/dt = 100 A/μs  
Q2  
IF = 26 A, di/dt = 300 A/μs  
Q1  
Q2  
6
27  
12  
43  
Qrr  
Reverse Recovery Charge  
Notes:  
2
1.R  
is determined with the device mounted on a 1 in pad 2 oz copper pad on a 1.5 x 1.5 in. board of FR-4 material. R  
is guaranteed by design while R  
is determined by  
θCA  
θJA  
θJC  
the user's board design.  
b. 63 °C/W when mounted on  
a 1 in pad of 2 oz copper  
a. 77 °C/W when mounted on  
a 1 in pad of 2 oz copper  
2
2
d. 135 °C/W when mounted on a  
minimum pad of 2 oz copper  
c. 151 °C/W when mounted on  
minimum pad of 2 oz copper  
a
2 Pulse Test: Pulse Width < 300 μs, Duty cycle < 2.0%.  
o
3. Q1 :E of 50 mJ is based on starting T = 25 C; N-ch: L = 3 mH, I = 5.8A, V = 25 V, V = 10 V. 100% test at L= 0.1 mH, I = 14.5 A.  
AS  
J
AS  
DD  
GS  
AS  
o
Q2: E of 181 mJ is based on starting T = 25 C; N-ch: L = 3 mH, I = 11 A, V = 25 V, V = 10 V. 100% test at L= 0.1 mH, I = 32.9 A.  
AS  
J
AS  
DD  
GS  
AS  
4. Pulsed Id limited by junction temperature,td<=10uS. Please refer to SOA curve for more details.  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
3
www.fairchildsemi.com  
Typical Characteristics (Q1 N-Channel) TJ = 25°C unless otherwise noted  
40  
5
VGS = 10 V  
VGS = 4.5 V  
VGS = 3.5 V  
VGS = 2.5 V  
32  
24  
16  
8
4
3
2
1
0
PULSE DURATION = 80 μs  
DUTY CYCLE = 0.5% MAX  
VGS = 3 V  
VGS = 3 V  
VGS = 2.5 V  
PULSE DURATION = 80 μs  
DUTY CYCLE = 0.5% MAX  
VGS = 10 V  
VGS = 4.5 V  
24  
VGS = 3.5 V  
16  
0
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
0
8
32  
40  
VDS, DRAIN TO SOURCE VOLTAGE (V)  
ID, DRAIN CURRENT (A)  
Figure 1. On Region Characteristics  
Figure2. N o r m a l i z e d O n - R e s i s ta n c e  
vs Drain Current and Gate Voltage  
30  
1.6  
ID = 13 A  
GS = 10 V  
PULSE DURATION = 80 μs  
DUTY CYCLE = 0.5% MAX  
V
ID = 13 A  
25  
20  
15  
10  
5
1.4  
1.2  
1.0  
0.8  
0.6  
TJ = 125 o  
C
TJ = 25 o  
C
0
2
4
6
8
10  
-75 -50 -25  
0
25 50 75 100 125 150  
TJ, JUNCTION TEMPERATURE (oC)  
VGS, GATE TO SOURCE VOLTAGE (V)  
Figure 3. Normalized On Resistance  
vs Junction Temperature  
Figure4. On-Resistance vs Gate to  
Source Voltage  
40  
100  
10  
VDS = 5 V  
VGS = 0 V  
32  
24  
16  
8
PULSE DURATION = 80 μs  
DUTY CYCLE = 0.5% MAX  
1
TJ = 150 o  
C
TJ = 150 o  
C
TJ = 25 oC  
0.1  
TJ = 25 o  
C
TJ = -55 o  
C
0.01  
TJ = -55 o  
C
0
0.001  
0
1
2
3
4
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
VGS, GATE TO SOURCE VOLTAGE (V)  
VSD, BODY DIODE FORWARD VOLTAGE (V)  
Figure 5. Transfer Characteristics  
Figure6. Source to Drain Diode  
Forward Voltage vs Source Current  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
4
www.fairchildsemi.com  
Typical Characteristics (Q1 N-Channel) TJ = 25°C unless otherwise noted  
10  
8
5000  
1000  
ID = 13 A  
VDD = 10 V  
Ciss  
VDD = 13 V  
Coss  
6
VDD = 15 V  
4
100  
Crss  
2
f = 1 MHz  
GS = 0 V  
V
0
10  
0
4
8
12  
16  
20  
0.1  
1
10  
25  
VDS, DRAIN TO SOURCE VOLTAGE (V)  
Qg, GATE CHARGE (nC)  
Figure 7. Gate Charge Characteristics  
Figure8. C a p a c i t a n c e v s D r a i n  
to Source Voltage  
60  
48  
36  
24  
12  
0
50  
RθJC = 5.0 oC/W  
VGS = 10 V  
TJ = 100 o  
C
10  
VGS = 4.5 V  
TJ = 25 oC  
Limited by Package  
TJ = 125 o  
C
1
0.001  
25  
50  
75  
100  
125  
150  
0.01  
0.1  
1
10  
100  
TC, CASE TEMPERATURE (oC)  
tAV, TIME IN AVALANCHE (ms)  
Figure9. U n c l a m p e d I n d u c t i v e  
Switching Capability  
Figure10. Maximum Continuous Drain  
Current vs Case Temperature  
100  
10  
1000  
100 μs  
100  
10  
1
1
1 ms  
10 ms  
100 ms  
THIS AREA IS  
LIMITED BY rDS(on)  
SINGLE PULSE  
TJ = MAX RATED  
1 s  
0.1  
0.01  
SINGLE PULSE  
θJA = 151 oC/W  
10 s  
DC  
R
R
θJA = 151 oC/W  
TA = 25 oC  
DERIVED FROM  
TEST DATA  
TA = 25 oC  
0.1  
10-4  
10-3  
10-2  
t, PULSE WIDTH (sec)  
10-1  
100  
101  
100 1000  
0.01  
0.1  
1
10  
100  
VDS, DRAIN to SOURCE VOLTAGE (V)  
Figure 11. Forward Bias Safe  
Operating Area  
Figure12. Single Pulse Maximum  
Power Dissipation  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
5
www.fairchildsemi.com  
Typical Characteristics (Q1 N-Channel) TJ = 25°C unless otherwise noted  
2
DUTY CYCLE-DESCENDING ORDER  
1
D = 0.5  
0.2  
0.1  
0.1  
P
DM  
0.05  
0.02  
0.01  
t
1
t
2
0.01  
NOTES:  
DUTY FACTOR: D = t /t  
PEAK T = P  
J
SINGLE PULSE  
RθJA = 151 oC/W  
1
2
x R  
x Z  
+ T  
DM  
θJA  
θJA A  
(Note 1c)  
0.001  
10-4  
10-3  
10-2  
10-1  
t, RECTANGULAR PULSE DURATION (sec)  
100  
101  
100  
1000  
Figure 13. Junction-to-Ambient Transient Thermal Response Curve  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
6
www.fairchildsemi.com  
Typical Characteristics (Q2 N-Channel) TJ = 25 °C unless otherwise noted  
120  
90  
60  
30  
0
5
4
3
2
1
0
VGS = 10 V  
PULSE DURATION = 80 μs  
DUTY CYCLE = 0.5% MAX  
VGS = 4.5 V  
VGS = 4 V  
VGS = 3.5 V  
VGS = 3 V  
VGS = 3 V  
VGS = 3.5 V  
PULSE DURATION = 80 μs  
DUTY CYCLE = 0.5% MAX  
VGS = 10 V  
VGS = 4.5 V  
VGS = 4 V  
0.0  
0.2  
0.4  
0.6  
0.8  
0
30  
60  
90  
120  
VDS, DRAIN TO SOURCE VOLTAGE (V)  
ID, DRAIN CURRENT (A)  
Figure 14. On-Region Characteristics  
Figure 15. Normalized on-Resistance vs Drain  
Current and Gate Voltage  
8
1.6  
ID = 26 A  
GS = 10 V  
PULSE DURATION = 80 μs  
ID = 26 A  
V
DUTY CYCLE = 0.5% MAX  
1.4  
6
4
1.2  
1.0  
0.8  
0.6  
TJ = 125 o  
C
2
0
TJ = 25 o  
C
2
3
4
5
6
7
8
9
10  
-75 -50 -25  
0
25 50 75 100 125 150  
TJ, JUNCTION TEMPERATURE (oC)  
VGS, GATE TO SOURCE VOLTAGE (V)  
Figure 17. On-Resistance vs Gate to  
Source Voltage  
Figure 16. Normalized On-Resistance  
vs Junction Temperature  
200  
100  
120  
VGS = 0 V  
PULSE DURATION = 80 μs  
DUTY CYCLE = 0.5% MAX  
100  
80  
60  
40  
20  
0
VDS = 5 V  
10  
1
TJ = 125 o  
C
TJ = 125 o  
C
TJ = 25 o  
C
TJ = 25 o  
C
0.1  
TJ = -55 o  
C
TJ = -55 o  
C
0.01  
0.001  
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
VSD, BODY DIODE FORWARD VOLTAGE (V)  
VGS, GATE TO SOURCE VOLTAGE (V)  
Figure 18. Transfer Characteristics  
Figure 19. Source to Drain Diode  
Forward Voltage vs Source Current  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
7
www.fairchildsemi.com  
Typical Characteristics (Q2 N-Channel) TJ = 25°C unless otherwise noted  
10000  
1000  
100  
10  
8
Ciss  
ID = 26 A  
VDD = 10 V  
Coss  
VDD = 13 V  
6
VDD = 15 V  
Crss  
4
2
f = 1 MHz  
GS = 0 V  
V
0
10  
0
12  
24  
36  
48  
60  
0.1  
1
10  
25  
VDS, DRAIN TO SOURCE VOLTAGE (V)  
Qg, GATE CHARGE (nC)  
Figure 21. Capacitance vs Drain  
to Source Voltage  
Figure 20. Gate Charge Characteristics  
120  
96  
72  
48  
24  
0
300  
100  
TJ = 100 o  
C
VGS = 10 V  
Limited by Package  
TJ = 25 oC  
10  
1
θJC = 3.5 oC/W  
VGS = 4.5 V  
R
TJ = 125 o  
C
25  
50  
75  
100  
125  
150  
0.001  
0.01  
0.1  
1
10  
100  
tAV, TIME IN AVALANCHE (ms)  
TC, CASE TEMPERATURE (oC)  
Figure 22. Unclamped Inductive  
Switching Capability  
F igu re 23 . Max imu m Con tin uo us Dra in  
Current vs Case Temperature  
200  
100  
10000  
100 μs  
1000  
100  
10  
10  
1
1 ms  
10 ms  
THIS AREA IS  
LIMITED BY r  
100 ms  
1 s  
DS(on)  
SINGLE PULSE  
TJ = MAX RATED  
SINGLE PULSE  
θJA = 135 oC/W  
0.1  
0.01  
1
R
θJA = 135 oC/W  
TA = 25 oC  
10 s  
DC  
R
DERIVED FROM  
TEST DATA  
T
A = 25 oC  
0.1  
10-4  
10-3  
10-2  
t, PULSE WIDTH (sec)  
10-1  
100  
101  
0.01  
0.1  
1
10  
100  
100 1000  
VDS, DRAIN to SOURCE VOLTAGE (V)  
Figure 24. Forward Bias Safe  
Operating Area  
Figure 25. Single Pulse Maximum Power  
Dissipation  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
8
www.fairchildsemi.com  
Typical Characteristics (Q2 N-Channel) TJ = 25 °C unless otherwise noted  
2
DUTY CYCLE-DESCENDING ORDER  
1
0.1  
0.01  
1E-3  
1E-4  
D = 0.5  
0.2  
P
DM  
0.1  
0.05  
0.02  
0.01  
t
1
t
2
SINGLE PULSE  
RθJA = 135 oC/W  
(Note 1d)  
NOTES:  
DUTY FACTOR: D = t /t  
1
2
PEAK T = P  
J
x Z  
x R  
+ T  
DM  
θJA  
θJA A  
10-4  
10-3  
10-2  
10-1  
t, RECTANGULAR PULSE DURATION (sec)  
100  
101  
100  
1000  
Figure 26. Junction-to-Ambient Transient Thermal Response Curve  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
9
www.fairchildsemi.com  
Typical Characteristics (continued)  
TM  
SyncFET Schottky body diode  
Characteristics  
Fairchild’s SyncFETTM process embeds a Schottky diode in  
parallel with PowerTrench MOSFET. This diode exhibits similar  
characteristics to a discrete external Schottky diode in parallel  
Schottky barrier diodes exhibit significant leakage at high tem-  
perature and high reverse voltage. This will increase the power  
in the device.  
with  
a MOSFET. Figure 27 shows the reverse recovery  
characteristic of the FDPC8012S.  
10-2  
30  
25  
20  
15  
10  
5
TJ = 125 o  
C
C
di/dt = 300 A/μs  
10-3  
10-4  
10-5  
10-6  
TJ = 100 o  
0
TJ = 25 o  
C
-5  
0
80  
160  
TIME (ns)  
240  
320  
400  
0
5
10  
15  
20  
25  
VDS, REVERSE VOLTAGE (V)  
Figure 28. SyncFETTM body diode reverse  
leakage versus drain-source voltage  
Figure 27. FDPC8012S SyncFETTM body  
diode reverse recovery characteristic  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
10  
www.fairchildsemi.com  
Application Information  
Typical Application Diagram (Synchronous Rectifier Buck Converter)  
Figure 1.Power Clip in Buck Converter Topology  
As shown in Figure 1, in the Power Clip package Q1 is the High Side MOSFET (Control MOSFET) and Q2 is the Low Side MOSFET  
(Synchronous MOSFET). Figure 2 below shows the package pin out. The blue overlay on the drawing indicates a typical PCB land  
pattern for the part.  
Figure 2.Top View of Power Clip  
Table 1 Pin Information shows the name and description of each pin.  
PIN  
Description  
Number  
Name  
1
HSG  
SW  
Gate signal input of Q1 Gate  
2,3,4  
Switch or Phase node, Source of Q1 and Drain of Q2  
5,6,PAD 10  
7
GND,GND(LSS) PAD Ground, Source of Q2  
LSG  
Gate signal input of Q2 Gate  
8,PAD 9  
V+, V+(HSD) PAD  
Input voltage of SR Buck converter, Drain of Q1  
Table 1. Pin Information  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
11  
www.fairchildsemi.com  
Recommended PCB Layout Guidelines  
As a PCB designer, it is necessary to address critical issues in layout to minimize losses and optimize the performance of the power  
train. Power Clip is a high power density solution and all high current flow paths, such as V+(HSD), SW and GND(LSS) should be  
short and wide for minimal resistance and inductance. V+(HSD) and GND(LSS) are the primary heat flow paths for the Power Clip.  
A recommended layout procedure is discussed below to maximize the electrical and thermal performance of the part.  
Figure 3.Top/Component (green) View and Bottom (red) PCB View  
Following is a guideline, not a requirement which the PCB designer should consider.  
Figure 3 shows an example of a well designed layout. The discussion that follows summarizes the key features of this layout.  
„ "The input ceramic bypass capacitor between VIN and GND should be placed as close as possible to the pins V+ / V+(HSD) PAD  
and GND / GND(LSS) PAD to help reduce parasitic inductance and high frequency ringing. Several capacitors may be placed in  
parallel, and capacitors may be placed on both the top and bottom side of the board. The capacitor located immediately adjacent  
to the Power Clip will be the most effective at reducing HF parasitic. Caps located farther away, or on the opposite side of the board  
will also assist, but will be less effective due to increased trace inductance.  
„ "The Power Clip package design, with very short distance between pins V+ and GND, allows for a short connect distance to the  
input cap. This is a factor that enables the Power Clip switch loop to have very low parasitic inductance.  
„ "Use large copper areas on the component side to connect the V+ pin and V+ (HSD) pad, and the GND and GND(LSS) PAD.  
„ "The SW to inductor copper trace is a high current path. It will also be a high noise region due to switching voltage transients. The  
trace should be short and wide to enable a low resistance path and to minimize the size of the noise region. Care should be taken  
to minimize coupling of this trace to adjacent traces. The layout in Figure 3 shows a good example of this short, wide path.  
„ "The Power Trench® Technology MOSFETs used in the Power Clip are effective at minimizing SW node ringing. They incorporate  
a proprietary design1 that minimizes the peak overshoot ring voltage on the switch node (SW). They allow the part to operate well  
within the breakdown voltage limits. For most layouts, this eliminates the need to add an external snubber circuit. If the designer  
chooses to use an RC snubber, it should be placed close to the part between the SW pins and GND / GND (LSS) PAD to dampen  
the high frequency ringing.  
„ "The Driver IC should be placed relatively closed to HSG pin and LSG pin to minimize G drive trace inductance. Excessive G trace  
length may slow the switching speed of the HS drive. And it may lead to excessive ringing on the LS G. If the designer must place  
the driver a significant distance away from the Power Clip, it would be a good practice to include a 0 Ohm resistor in the LS G path  
as a place holder. In the final design, if the LS G exhibits excessive LF ringing, efficiency can often be improved by changing this  
resistor to a few Ohms to dampen the LS G LF ringing.  
„ "The Power Clip has very good Junction-PCB heat transfer from all power pins. It has much better heat transfer Junction-GND (LSS)  
than traditional dual FET packages. In most cases, board ground will be the most effective heat transfer path on the PCB. Use a  
large copper area between GND / GND(LSS)PAD pins and board ground. To ensure the best thermal and electrical connection to  
ground, we recommend using multiple vias to interconnect ground plane layers as shown in Figure 3.  
1.Patent Pending  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
12  
www.fairchildsemi.com  
„ "Use multiple vias in parallel on each copper region to interconnect top, inner and bottom layers. This will reduce resistance and  
inductance of the vias and will improve thermal conductivity. Vias should be relatively large, around 8 mils to 10 mils.  
„ "Avoid using narrow thermal relief traces on the V+ / V+(HSD) PAD and GND / GND(LSS)PAD pins. These will increase HF switch  
loop inductance. And these will increase ringing of the HF power loop and the SW node.  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
13  
www.fairchildsemi.com  
Dimensional Outline and Pad Layout  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild's worldwide terms and conditions,  
specifically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
https://www.fairchildsemi.com/evaluate/package-specifications/packageDetails.html?id=PN_PQDEU-X08.  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
14  
www.fairchildsemi.com  
TRADEMARKS  
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not  
intended to be an exhaustive list of all such trademarks.  
AccuPower™  
F-PFS™  
FRFET  
®*  
®
®
®
tm  
Awinda  
AX-CAP *  
®
®
Global Power ResourceSM  
GreenBridge™  
Green FPS™  
PowerTrench  
PowerXS™  
Programmable Active Droop™  
QFET  
QS™  
Quiet Series™  
RapidConfigure™  
®
TinyBoost  
TinyBuck  
BitSiC™  
®
Build it Now™  
CorePLUS™  
CorePOWER™  
CROSSVOLT™  
CTL™  
TinyCalc™  
®
Green FPS™ e-Series™  
Gmax™  
GTO™  
®
TinyLogic  
TINYOPTO™  
TinyPower™  
TinyPWM™  
TinyWire™  
IntelliMAX™  
Current Transfer Logic™  
ISOPLANAR™  
Marking Small Speakers Sound Louder  
and Better™  
MegaBuck™  
MICROCOUPLER™  
MicroFET™  
®
DEUXPEED  
TranSiC™  
Dual Cool™  
Saving our world, 1mW/W/kW at a time™  
SignalWise™  
SmartMax™  
TriFault Detect™  
TRUECURRENT *  
®
EcoSPARK  
®
EfficentMax™  
ESBC™  
μSerDes™  
SMART START™  
MicroPak™  
MicroPak2™  
MillerDrive™  
Solutions for Your Success™  
SPM  
®
®
®
®
STEALTH™  
UHC  
Fairchild  
®
®
MotionMax™  
SuperFET  
Ultra FRFET™  
UniFET™  
VCX™  
VisualMax™  
VoltagePlus™  
XS™  
Fairchild Semiconductor  
FACT Quiet Series™  
®
MotionGrid  
SuperSOT™-3  
SuperSOT™-6  
SuperSOT™-8  
®
®
MTi  
MTx  
MVN  
FACT  
FAST  
®
®
®
®
SupreMOS  
FastvCore™  
FETBench™  
FPS™  
®
mWSaver  
SyncFET™  
Sync-Lock™  
OptoHiT™  
Xsens™  
™  
*Trademarks of System General Corporation, used under license by Fairchild Semiconductor.  
DISCLAIMER  
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE  
RELIABILITY, FUNCTION, OR DESIGN. TO OBTAIN THE LATEST, MOST UP-TO-DATE DATASHEET AND PRODUCT INFORMATION, VISIT OUR  
WEBSITE AT HTTP://WWW.FAIRCHILDSEMI.COM. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF  
ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF  
OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE  
WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE  
EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.  
As used here in:  
1. Life support devices or systems are devices or systems which, (a) are  
intended for surgical implant into the body or (b) support or sustain life,  
and (c) whose failure to perform when properly used in accordance with  
instructions for use provided in the labeling, can be reasonably  
expected to result in a significant injury of the user.  
2. A critical component in any component of a life support, device, or  
system whose failure to perform can be reasonably expected to cause  
the failure of the life support device or system, or to affect its safety or  
effectiveness.  
ANTI-COUNTERFEITING POLICY  
Fairchild Semiconductor Corporation’s Anti-Counterfeiting Policy. Fairchild’s Anti-Counterfeiting Policy is also stated on our external website,  
www.Fairchildsemi.com, under Sales Support.  
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufactures of semiconductor products are experiencing counterfeiting of their  
parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed  
application, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the  
proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild  
Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild  
Distributors are genuine parts, have full traceability, meet Fairchild’s quality standards for handing and storage and provide access to Fairchild’s full range of  
up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address and  
warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is  
committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.  
PRODUCT STATUS DEFINITIONS  
Definition of Terms  
Datasheet Identification  
Product Status  
Definition  
Datasheet contains the design specifications for product development. Specifications  
may change in any manner without notice.  
Advance Information  
Formative / In Design  
Datasheet contains preliminary data; supplementary data will be published at a later  
date. Fairchild Semiconductor reserves the right to make changes at any time without  
notice to improve design.  
Preliminary  
First Production  
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to  
make changes at any time without notice to improve the design.  
No Identification Needed  
Obsolete  
Full Production  
Datasheet contains specifications on a product that is discontinued by Fairchild  
Semiconductor. The datasheet is for reference information only.  
Not In Production  
Rev. I71  
www.fairchildsemi.com  
©2012 Fairchild Semiconductor Corporation  
FDPC8012S Rev.C1  
15  
ON Semiconductor and  
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.  
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent  
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