NCP81075DR2G [ONSEMI]

High Performance Dual MOSFET Gate Driver;
NCP81075DR2G
型号: NCP81075DR2G
厂家: ONSEMI    ONSEMI
描述:

High Performance Dual MOSFET Gate Driver

栅 驱动 光电二极管 接口集成电路 驱动器
文件: 总13页 (文件大小:124K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
NCP81075  
High Performance Dual  
MOSFET Gate Driver  
Introduction  
The NCP81075 is a high performance dual MOSFET gate driver  
optimized to drive the gates of both high and low side power  
MOSFETs in a synchronous buck converter. The NCP81075 uses an  
on−chip bootstrap diode to eliminate the external discrete diode. A  
high floating top driver design can accommodate HB voltage as high  
as 180 V. The low−side and high−side are independently controlled  
and match to 4 ns between the turn−on and turn−off of each other.  
Independent Under−Voltage lockout is provided for the high side and  
low side driver forcing the output low when the drive voltage is below  
a specific threshold.  
www.onsemi.com  
8
1
1
1
SOIC−8 NB  
DFN8  
WDFN10  
CASE 751−07  
CASE 506CY CASE 511CE  
Features  
MARKING DIAGRAMS  
Drives Two N-Channel MOSFETs in High-Side and Low-Side  
Configuration  
Floating Top Driver Accommodates Boost Voltage up to 180 V  
8
NCP  
81075  
ALYWG  
G
NCP81075  
ALYWG  
G
Switching Frequency up to 1 MHz  
20 ns Propagation Delay Times  
4 A Sink, 4 A Source Output Currents  
8 ns Rise / 7 ns Fall Times with 1000 pF Load  
UVLO Protection  
1
NCP81075 = Specific Device Code  
A
L
Y
W
G
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Package  
Specified from −40°C to 140°C  
Offered in SOIC−8 (D), DFN8 (MN), WDFN10 (MT)  
Packages  
(Note: Microdot may be in either location)  
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS  
Compliant  
PINOUT DIAGRAMS  
Applications  
VDD 1  
HB 2  
10 LO  
VDD 1  
8 LO  
Telecom and Datacom  
9 VSS  
HB 2  
HO 3  
HS 4  
7 VSS  
6 LI  
Isolated Non−Isolated Power Supply Architectures  
Class D Audio Amplifiers  
HO 3  
HS 4  
NC 5  
8 LI  
7 HI  
6 NC  
5 HI  
Two Switch and Active Clamp Forward Converters  
SOIC/DFN8  
WDFN10  
Simplified Application Diagram  
NCP81075  
(top views)  
VDD  
VDD  
HB  
HO  
ORDERING INFORMATION  
VIN  
HI  
LI  
Device  
Package  
Shipping  
PWM  
CONTROLLER  
NCP81075  
VOUT  
HS  
LO  
NCP81075DR2G  
NCP81075MNTXG  
NCP81075MTTXG  
SOIC8  
(Pb−Free)  
2500 /  
Tape & Reel  
DFN8  
(Pb−Free)  
4000 /  
Tape & Reel  
VSS  
WDFN10  
(Pb−Free)  
4000 /  
Tape & Reel  
†For information on tape and reel specifications,  
including part orientation and tape sizes, please  
refer to our Tape and Reel Packaging Specifications  
Brochure, BRD8011/D.  
© Semiconductor Components Industries, LLC, 2016  
1
Publication Order Number:  
October, 2017 − Rev. 1  
NCP81075/D  
NCP81075  
Table 1. PIN DESCRIPTION  
Pin No.  
Pin No.  
Symbol  
Description  
SOIC/DFN8  
WDFN10  
1
2
3
4
5
6
7
8
1
2
VDD  
HB  
HO  
HS  
HI  
Positive Supply to the Lower Gate Driver  
High Side Bootstrap Supply  
High Side Output  
3
4
High−Side Source  
7
High−Side Input  
8
LI  
Low−Side Input  
9
VSS  
LO  
NC  
Negative Supply Return  
Low−Side Output  
10  
5,6  
No Connect  
Table 2. MAXIMUM RATINGS  
Parameter  
Value  
Units  
VDD  
−0.3 to 24  
V
V
V
V
HB  
−0.3 to 200  
V
HO  
DC  
V
– 0.3 to V + 0.3  
HS HB  
Repetitive Pulse < 100 ns  
V − 2 to V + 0.3, (V − V < 24)  
HS HB HB HS  
V
V
DC  
DC  
−20 to 200 − VDD  
−0.3 to VDD + 0.3  
−2 to VDD + 0.3  
−10 to 24  
V
V
HS  
LO  
Repetitive pulse < 100 ns  
V
, V  
V
V
HI  
LI  
V
−0.3 to 24  
−40 to 170  
−65 to 150  
+300  
HB − HS  
Operating Junction Temperature Range, T  
°C  
°C  
°C  
V
J
Storage Temperature, T  
STG  
Lead Temperature (Soldering, 10 sec)  
HBM  
CDM  
1000  
2000  
V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality  
should not be assumed, damage may occur and reliability may be affected.  
1. V – V should be in the range of −0.3 V to +20 V.  
HB  
HS  
Table 3. RECOMMENDED OPERATING CONDITIONS  
Parameter  
Min  
8.5  
Nom  
Max  
20  
Units  
V
DD  
V
HS  
V
HB  
Supply Voltage Range  
Voltage on HS (DC)  
Voltage on HB  
12  
V
−10  
180 − VDD  
V
+ 8,  
V
+ 20,  
HS  
HS  
V
DD  
− 1  
180  
Voltage Slew Rate on HS  
50  
V / ns  
°C  
T
J
Operating Junction Temperature Range  
−40  
− 0.3  
+140  
V
HO  
V
HS  
V
V
+ 0.3  
V
HB  
DD  
V
LO  
−0.3  
+ 0.3  
V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond  
the Recommended Operating Ranges limits may affect device reliability.  
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2
NCP81075  
ABSOLUTE MAXIMUM RATINGS  
Table 4. ELECTRICAL/THERMAL INFORMATION (All signals referenced to GND unless noted otherwise, Note 2)  
Thermal Characteristic  
SOIC  
41  
DFN8  
36  
DFN10  
35  
Unit  
°C/W  
q
q
q
q
Junction to Ambient thermal resistance  
JA  
Junction to case (Top) thermal resistance  
50  
42  
32  
JC(top)  
Junction to Board thermal resistance  
10  
19.1  
4
12  
JB  
Junction to case (Bottom) thermal resistance  
Junction to top characterization parameter  
Junction to board characterization parameter  
1.5  
3.1  
10  
1.3  
JC(Bottom)  
y
y
0.6  
19.3  
1
0.2  
JT  
JB  
12.2  
Moisture Sensitivity Level (MSL)  
QFN Package  
2. This data was taken using the JEDEC proposed High−K Test PCB.  
Table 5. ELECTRICAL CHARACTERISTICS  
Unless otherwise stated: T = T = −40°C to 140°C; VDD = VHB = 12 V, VHS = VSS = 0 V, No load on LO or HO  
A
J
Parameter  
Test Condition  
Min  
Typ  
Max  
Units  
SUPPLY CURRENTS  
I
VDD quiescent current  
VDD operating current  
V
= V = 0  
0.85  
7.3  
1.8  
15  
11  
mA  
DD  
LI  
HI  
I
f = 500 kHz, C  
f = 300 kHz, C  
= 0  
= 0  
DDO  
LOAD  
4.9  
LOAD  
I
Boot voltage quiescent current  
Boot voltage operating current  
V
= V = 0 V  
0.92  
6.55  
4.5  
1.8  
12  
7.0  
25  
HB  
LI  
HI  
I
f = 500 kHz, C  
f = 300 kHz, C  
= 0  
= 0  
HBO  
LOAD  
LOAD  
I
HB to V quiescent current  
V
HS  
= V = 110 V  
5.0  
mA  
HBS  
SS  
HB  
I
HB to V operating current  
f = 500 kHz, C = 0  
LOAD  
0.1  
mA  
HBSO  
SS  
INPUT  
V
, V  
, V  
Input rising threshold  
Input falling threshold  
Input Pulldown Resistance  
2.7  
100  
6.2  
5.5  
V
kW  
V
HIH  
LIH  
V
0.8  
HIL  
LIL  
R
170  
350  
IN  
UNDERVOLTAGE PROTECTION (UVLO)  
VDD rising threshold  
7.1  
0.58  
6.5  
8.0  
7.5  
VDD threshold hysteresis  
VHB rising threshold  
VHB threshold hysteresis  
BOOTSTRAP DIODE  
0.5  
V
Low−current forward voltage  
High−current forward voltage  
Dynamic resistance, DVF/DI  
I
I
I
− HB = 100 mA  
0.59  
0.85  
0.94  
0.95  
1.1  
V
W
V
A
F
VDD  
VDD  
VDD  
V
FI  
− HB = 100 mA  
R
− HB = 100 mA and 80 mA  
2.0  
D
LO GATE DRIVER  
V
Low level output voltage  
High level output voltage  
Peak pull−up current  
I
I
= 100 mA  
0.1  
0.15  
4
0.40  
0.40  
LOL  
LOH  
LO  
V
= −100 mA, V  
= V − V  
LO  
LOH DD LO  
V
V
= 0 V  
LO  
LO  
Peak pull−down current  
= 12 V  
4
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3
 
NCP81075  
Table 5. ELECTRICAL CHARACTERISTICS  
Unless otherwise stated: T = T = −40°C to 140°C; VDD = VHB = 12 V, VHS = VSS = 0 V, No load on LO or HO  
A
J
Parameter  
Test Condition  
Min  
Typ  
Max  
Units  
HO GATE DRIVER  
V
Low level output voltage  
High level output voltage  
Peak pull−up current  
I
I
= 100 mA  
0.1  
0.15  
4
0.40  
0.40  
V
A
HOL  
HOH  
HO  
V
= −100 mA, V  
= V – V  
HOH HB HO  
HO  
V
= 0 V  
LO  
LO  
Peak pull−down current  
V
= 12 V  
4
PROPAGATION DELAYS  
t
V
LI  
V
HI  
V
LI  
V
HI  
falling to V falling  
C
C
C
C
C
C
C
C
= 0 (−40 to 125°C)  
= 0 (−40 to 140°C)  
= 0 (−40 to 125°C)  
= 0 (−40 to 140°C)  
= 0 (−40 to 125°C)  
= 0 (−40 to 140°C)  
= 0 (−40 to 125°C)  
= 0 (−40 to 140°C)  
20  
20  
20  
20  
20  
20  
20  
20  
45  
50  
45  
50  
45  
50  
45  
50  
ns  
DLFF  
LO  
LOAD  
LOAD  
LOAD  
LOAD  
LOAD  
LOAD  
LOAD  
LOAD  
t
falling to V falling  
DHFF  
DLRR  
HO  
t
rising to V rising  
LO  
t
rising to V rising  
DHRR  
HO  
DELAY MATCHING  
tMON  
LI ON, HI OFF  
LI OFF, HI ON  
3.5  
3.5  
14  
14  
ns  
tMOFF  
OUTPUT RISE AND FALL TIME  
t
LO, HO  
C
C
C
C
= 1000 pF  
= 1000 pF  
= 0.1 mF  
8
7
ns  
R
LOAD  
LOAD  
LOAD  
LOAD  
t
LO, HO  
F
t
R
LO, HO (3 V to 9 V)  
LO, HO (3 V to 9 V)  
0.2  
0.25  
0.55  
0.45  
ms  
t
= 0.1 mF  
F
MISCELLANEOUS  
t
Minimum input pulse width that  
changes the output  
30  
50  
ns  
1
t
2
Bootstrap diode turn−off time  
I = 100 mA, I  
= −100 mA  
F
REV  
(Notes 3 and 4)  
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product  
performance may not be indicated by the Electrical Characteristics if operated under different conditions.  
3. Typical values for T = 25°C  
A
4. I : Forward current applied to bootstrap diode, I  
: Reverse current applied to bootstrap diode.  
REV  
F
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4
 
NCP81075  
Internal Block Diagram  
Figure 1. Internal Block Diagram  
Timing Diagrams  
VDD / VHB-VHS  
UVLO  
Thresholds  
LI  
Delay ~ 40us  
LO  
HI  
Delay ~ 40us  
HO  
Note: If HI is set and the High−Side driver (VHB−VHS) crosses its UVLO threshold  
100ns after the VDD UVLO then a rising edge on HI is required to pull HO High.  
Figure 2. UVLO  
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5
NCP81075  
LI  
HI  
LO  
TMOFF  
TON  
HO  
Figure 3. TMON and TMOFF  
90%  
10%  
HI, LI  
TDLRR  
TDHRR  
90%  
TDLFF  
TDHFF  
10%  
HO, LO  
Figure 4. Propagation Delays  
LOGIC TABLE  
HI  
L
LI  
HO  
LO  
L
L
H
L
L
L
L
H
L
H
H
H
H
H
H
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6
NCP81075  
PINOUT DIAGRAMS  
DFN8  
1
2
3
4
8
7
6
5
LO  
VSS  
LI  
VDD  
HB  
GND  
Pad  
HO  
HS  
HI  
WDFN10  
1
10  
LO  
VDD  
2
3
9
8
HB  
HO  
VSS  
LI  
GND  
Pad  
HS  
NC  
4
5
7
6
HI  
NC  
SOIC 8  
8
7
6
1
2
3
LO  
VDD  
HB  
HO  
VSS  
LI  
HS  
5
HI  
4
Note: The V Pin and the GND Pad are internally connected.  
SS  
Figure 5. NCP81075 Top View  
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7
NCP81075  
TYPICAL CHARACTERISTICS  
4
3
4.0  
3.5  
3.0  
2.5  
TmOFF  
2
1
0
HI ; LI = High  
2.0  
I(HB)  
−1  
−2  
−3  
1.5  
Input Current  
1.0  
TmON  
0.5  
0
−4  
−5  
−50 −25  
0
25  
50  
75 100 125 150  
8
10  
12  
14  
16  
18  
20  
22  
24  
TEMPERATURE (°C)  
SUPPLY VOLTAGE (V)  
Figure 6. Delay Matching vs. Temperature  
Figure 7. Quiescent Current vs. Supply  
Voltage High  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
3.0  
2.5  
2.0  
1.5  
1.0  
Rising  
Falling  
HI ; LI = GND  
I(HB)  
I(VDD)  
0.5  
0
0.2  
0
8
10  
12  
14  
16  
18  
20  
22  
24  
−50 −25  
0
25  
50  
75 100 125 150  
SUPPLY VOLTAGE (V)  
TEMPERATURE (°C)  
Figure 8. Quiescent Current vs. Supply  
Voltage Low  
Figure 9. Input Threshold vs. Temperature  
1.99  
1.98  
1.97  
1.96  
1.95  
1.94  
1.93  
1.92  
1.91  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
Rising  
Falling  
T = 25°C  
0.5  
0
1.90  
1.89  
Sink Current  
2
Source Current  
10 12  
8
10  
12  
14  
16  
18  
20  
22  
24  
0
4
6
8
SUPPLY VOLTAGE (V)  
OUTPUT VOLTAGE (V)  
Figure 10. Input Threshold vs. Supply Voltage  
Figure 11. Output Current vs. Output Voltage  
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8
NCP81075  
TYPICAL CHARACTERISTICS  
22.5  
22.0  
21.5  
21.0  
25  
20  
15  
10  
Falling  
Rising  
Falling Edge  
Rising Edge  
20.5  
5
0
20.0  
19.5  
8
10  
12  
14  
16  
18  
20  
22  
24  
−50 −25  
0
25  
50  
75 100 125 150  
SUPPLY VOLTAGE (V)  
TEMPERATURE (°C)  
Figure 12. Propagation Delay vs. Supply  
Voltage  
Figure 13. Propagation Delay vs. Temperature  
1000  
100  
10  
10  
9
I(VDD)  
8
I(HB)  
7
6
1
5
4
0.1  
3
2
0.01  
1
0
0.001  
10 110 210 310 410 510 610 710 810 910 1010  
FREQUENCY (kHz)  
0.50  
0.60  
0.70  
0.80  
0.90  
DIODE VOLTAGE (V)  
Figure 14. Operating Current vs. Frequency  
Figure 15. Diode Current vs. Diode Voltage  
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9
NCP81075  
APPLICATION INFORMATION  
The NCP81075 is a high performance dual MOSFET gate  
the HS Pin is pulled to ground. This allows the bootstrap  
capacitor to charge up to VDD again. The high−side driver’s  
output is in phase with the HI input. When the driver is  
disabled, the high side gate is held low.  
The external BST resistor, which connects HB pin and  
BST cap, should avoid excessive resistance. NCP81075  
has high−side UVLO protection based on the voltage across  
HB and HS pins. High resistance on HB pin may falsely  
trigger UVLO protection at the moment when high−side  
MOSFET is turning on.  
driver optimized for driving the gates of both high side and  
low side power MOSFETs in a synchronous buck converter  
topology. A high and a Low input signals are all that is  
required to properly drive the high side and low side  
MOSFETs.  
Low−Side Driver  
The low side driver is designed to drive low RDS  
ON  
N−channel MOSFETs. The typical output resistances for the  
driver are 1.5 ohms for sourcing and 1 ohm for sinking gate  
current. Due to the parasitic inductances of the packages,  
drive circuits and the nonlinearity of the MOSFETs output  
resistances the recorded peak current is close to 4 A.  
The low output resistances allow the driver to have 8 ns  
rise and 7 ns fall times into a 1 nF load. When the driver is  
enabled, the driver’s output is in phase with LI. When the  
NCP81075 is disabled, the low side gate is held low.  
UVLO (Under Voltage Lockout)  
The bias supplies of the high−side and low−side drivers  
have UVLO protection. The VDD UVLO disables both  
drivers when the VDD voltage crosses the specified  
threshold. The typical rising threshold is 7.1 V with 0.58 V  
hysteresis. The VHB UVLO disables only the high−side  
driver when the VHB to VHS is below the specified  
threshold. The typical VHB UVLO rising threshold is 6.5 V  
with 0.5 V hysteresis. The designer must take into account  
a 40 ms delay before the output channels can react to a logic  
input. (Refer to the UVLO Timing Diagram).  
High−Side Driver  
The high side driver is designed to drive a floating low  
RDS N−channel MOSFET. The output resistances for the  
ON  
driver are 1.5 ohms for sourcing and 1 ohm for sinking gate  
current. The bias voltage for the high side driver is realized  
by an external bootstrap supply circuit which is connected  
between the HB and HS Pins.  
The bootstrap circuit comprises only of the bootstrap  
capacitor since the bootstrap diode is internal. When the  
NCP81075 is starting up, the HS Pin is at ground, the  
bootstrap capacitor will charge up to VDD through the  
internal diode. When the HI goes high, the high side driver  
will begin to turn the high side MOSFET On by pulling  
charge out of the bootstrap capacitor. As the external  
MOSFET turns ON, the HS Pin will rise up to VIN, forcing  
Input Stages  
The input stage of the NCP81075 is TTL compatible. The  
logic rising threshold level is 2.4 V and the logic falling  
threshold is 1.6 V.  
Layout Guidelines  
Gate drivers experience high di/dt during the switching  
transitions. So, the inductance at the gate drive traces must  
be minimized to avoid excessive ringing on the switch node.  
Gate drive traces should be kept as short and wide (> 20 mil)  
as practical. The input capacitor must be placed as close as  
possible to the IC. Connect the VSS pin of the NCP81075 as  
close as possible to the source of the lower MOSFET. The  
use of vias is highly desirable to maximize thermal  
conduction away from driver.  
the HB Pin to VIN + V  
which is enough gate to source  
BstCap  
voltage to hold the switch On. To complete the cycle, the  
MOSFET is switched OFF by pulling the gate down to the  
voltage at the HS Pin. When the low side MOSFET turns On,  
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10  
NCP81075  
PACKAGE DIMENSIONS  
SOIC−8 NB  
CASE 751−07  
ISSUE AK  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER  
ANSI Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETER.  
3. DIMENSION A AND B DO NOT INCLUDE  
MOLD PROTRUSION.  
−X−  
A
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)  
PER SIDE.  
8
5
4
5. DIMENSION D DOES NOT INCLUDE DAMBAR  
PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.127 (0.005) TOTAL  
IN EXCESS OF THE D DIMENSION AT  
MAXIMUM MATERIAL CONDITION.  
6. 751−01 THRU 751−06 ARE OBSOLETE. NEW  
STANDARD IS 751−07.  
S
M
M
B
0.25 (0.010)  
Y
1
K
−Y−  
MILLIMETERS  
DIM MIN MAX  
INCHES  
G
MIN  
MAX  
0.197  
0.157  
0.069  
0.020  
A
B
C
D
G
H
J
K
M
N
S
4.80  
3.80  
1.35  
0.33  
5.00 0.189  
4.00 0.150  
1.75 0.053  
0.51 0.013  
C
N X 45  
_
SEATING  
PLANE  
1.27 BSC  
0.050 BSC  
−Z−  
0.10  
0.19  
0.40  
0
0.25 0.004  
0.25 0.007  
1.27 0.016  
0.010  
0.010  
0.050  
8
0.020  
0.244  
0.10 (0.004)  
M
J
H
D
8
0
_
_
_
_
0.25  
5.80  
0.50 0.010  
6.20 0.228  
M
S
S
X
0.25 (0.010)  
Z
Y
SOLDERING FOOTPRINT*  
1.52  
0.060  
7.0  
4.0  
0.275  
0.155  
0.6  
0.024  
1.270  
0.050  
mm  
inches  
ǒ
Ǔ
SCALE 6:1  
*For additional information on our Pb−Free strategy and soldering  
details, please download the ON Semiconductor Soldering and  
Mounting Techniques Reference Manual, SOLDERRM/D.  
www.onsemi.com  
11  
NCP81075  
PACKAGE DIMENSIONS  
DFN8, 4x4, 0.8P  
CASE 506CY  
ISSUE O  
NOTES:  
A
B
D
1. DIMENSIONS AND TOLERANCING PER  
ASME Y14.5M, 1994.  
L
L
2. CONTROLLING DIMENSION: MILLIMETERS.  
3. DIMENSION b APPLIES TO PLATED  
TERMINAL AND IS MEASURED BETWEEN  
0.15 AND 0.30MM FROM TERMINAL TIP.  
4. COPLANARITY APPLIES TO THE EXPOSED  
PAD AS WELL AS THE TERMINALS.  
L1  
DETAIL A  
PIN ONE  
REFERENCE  
E
OPTIONAL  
CONSTRUCTIONS  
2X  
MILLIMETERS  
0.15  
C
DIM MIN  
0.80  
A1 0.00  
MAX  
1.00  
0.05  
A
2X  
0.15  
C
TOP VIEW  
A3  
b
0.20 REF  
0.25  
0.35  
D
4.00 BSC  
EXPOSED Cu  
MOLD CMPD  
DETAIL B  
D2 3.28  
3.48  
0.10  
0.08  
C
C
E
4.00 BSC  
2.55  
0.80 BSC  
E2 2.35  
e
K
L
L1  
A
0.375 REF  
8X  
DETAIL B  
(A3)  
0.30  
−−−  
0.50  
0.15  
ALTERNATE  
NOTE 4  
A1  
SEATING  
PLANE  
CONSTRUCTION  
C
SIDE VIEW  
D2  
8X L  
DETAIL A  
1
4
RECOMMENDED  
SOLDERING FOOTPRINT*  
8X  
0.63  
3.58  
E2  
8
5
K
8X b  
e
M
0.10  
C A B  
e/2  
2.65  
4.30  
M
NOTE 3  
C
0.05  
PACKAGE  
OUTLINE  
BOTTOM VIEW  
8X  
0.40  
0.80  
PITCH  
DIMENSIONS: MILLIMETERS  
*For additional information on our Pb−Free strategy and soldering  
details, please download the ON Semiconductor Soldering and  
Mounting Techniques Reference Manual, SOLDERRM/D.  
www.onsemi.com  
12  
NCP81075  
PACKAGE DIMENSIONS  
WDFN10 4x4, 0.8P  
CASE 511CE  
ISSUE O  
NOTES:  
B
E
A
D
1. DIMENSIONING AND TOLERANCING PER ASME  
Y14.5M, 1994.  
2. CONTROLLING DIMENSION: MILLIMETERS.  
3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS  
MEASURED BETWEEN 0.25 AND 0.30 MM FROM THE  
TERMINAL TIP.  
4. COPLANARITY APPLIES TO THE EXPOSED PAD AS  
WELL AS THE TERMINALS.  
5. DETAILS A AND B SHOW OPTIONAL VIEWS FOR END  
OF TERMINAL LEAD AT EDGE OF PACKAGE.  
6. FOR DEVICE OPN CONTAINING W OPTION, DETAIL B  
ALTERNATE CONSTRUCTION IS NOT APPLICABLE.  
L
L
L1  
PIN ONE  
REFERENCE  
DETAIL A  
ALTERNATE TERMINAL  
CONSTRUCTIONS  
2X  
MILLIMETERS  
DIM MIN  
MAX  
0.80  
0.05  
0.10  
0.10  
C
A
A1  
A3  
b
0.70  
0.00  
0.20 REF  
A3  
2X  
C
EXPOSED Cu  
MOLD CMPD  
TOP VIEW  
0.25  
0.35  
D
4.00 BSC  
D2  
E
E2  
e
K
L
2.90  
4.00 BSC  
2.50  
0.80 BSC  
0.30 REF  
0.30  
0.00  
3.10  
DETAIL B  
0.10  
C
C
A
C
2.70  
A1  
10X  
DETAIL B  
ALTERNATE  
CONSTRUCTIONS  
0.50  
0.15  
0.08  
A3  
L1  
SEATING  
PLANE  
A1  
NOTE 4  
SIDE VIEW  
D2  
DETAIL A  
10X L  
RECOMMENDED  
MOUNTING FOOTPRINT  
1
5
10X  
0.60  
3.20  
E2  
4.30  
2.76  
PACKAGE  
OUTLINE  
K
10  
6
10X  
b
e
1
0.10 C A B  
10X  
0.42  
0.80  
PITCH  
0.05  
C
NOTE 3  
BOTTOM VIEW  
DIMENSIONS: MILLIMETERS  
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NCP81075/D  

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