SIP32402ADNP-T1GE4 [VISHAY]

IC AUDIO/VIDEO SWITCH, Multiplexer or Switch;
SIP32402ADNP-T1GE4
型号: SIP32402ADNP-T1GE4
厂家: VISHAY    VISHAY
描述:

IC AUDIO/VIDEO SWITCH, Multiplexer or Switch

文件: 总13页 (文件大小:217K)
中文:  中文翻译
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SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
1.1 V to 5.5 V, Slew Rate Controlled Load Switch  
DESCRIPTION  
FEATURES  
SiP32401A and SiP32402A are slew rate controlled load  
switches designed for 1.1 V to 5.5 V operation.  
• 1.1 V to 5.5 V operation voltage range  
• 62 mΩ typical from 2 V to 5 V  
The devices guarantee low switch on-resistance at 1.2 V  
input. They feature a controlled soft-on slew rate of typical  
2.5 ms that limits the inrush current for designs of heavy  
capacitive load and minimizes the resulting voltage droop at  
the power rails.  
• Low Ron down to 1.2 V  
• Slew rate controlled turn-on: 2.5 ms at 3.6 V  
• Fast shutdown load discharge for SiP32402A  
Available  
• Low quiescent current  
< 1 μA when disabled  
10.5 μA typical at VIN = 1.2 V  
These devices feature low voltage control logic interface  
(On/Off interface) that can interface with low voltage control  
signal without extra level shifting circuit. SiP32402A also  
integrates an output discharge switch that enables fast  
shutdown load discharge.  
• Reverse current blocking when switch is off  
• Material categorization: for definitions of compliance  
please see www.vishay.com/doc?99912  
Both SiP32401A and SiP32402A have exceptionally low  
shutdown current and provide reverse blocking to prevent  
high current flowing into the power source.  
APPLICATIONS  
• PDAs / smart phones  
SiP32401A and SiP32402A are in TDFN4 package of  
1.2 mm by 1.6 mm.  
• Notebook / netbook computers  
• Tablet PC  
• Portable media players  
• Digital camera  
• GPS navigation devices  
• Data storage devices  
• Optical, industrial, medical, and healthcare devices  
TYPICAL APPLICATION CIRCUIT  
V
IN  
IN  
OUT  
V
OUT  
SiP32401A, SiP32402A  
C
C
IN  
OUT  
4.7 µF  
0.1 µF  
EN  
GND  
EN  
GND  
GND  
Fig. 1 - SiP32401A, SiP32402A Typical Application Circuit  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
1
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
ORDERING INFORMATION  
TEMPERATURE RANGE  
PACKAGE  
MARKING  
PART NUMBER  
Gx  
Hx  
SiP32401ADNP-T1GE4  
SiP32402ADNP-T1GE4  
-40 °C to +85 °C  
TDFN4 1.2 mm x 1.6 mm  
Notes  
x = Lot code  
GE4 denotes halogen-free and RoHS-compliant  
ABSOLUTE MAXIMUM RATINGS  
PARAMETER  
LIMIT  
-0.3 to +6  
-0.3 to +6  
-0.3 to VIN + 0.3  
2.4  
UNIT  
Supply Input Voltage (VIN)  
Enable Input Voltage (VEN  
Output Voltage (VOUT  
Maximum Continuous Switch Current (Imax.  
)
V
)
c
)
A
Maximum Repetitive Pulsed Current (1 ms, 10 % Duty Cycle) c  
3
ESD Rating (HBM)  
4000  
V
Junction Temperature (TJ)  
-40 to +125  
170  
°C  
a
Thermal Resistance (θJA  
)
°C/W  
mW  
Power Dissipation (PD) a, b  
324  
Notes  
a. Device mounted with all leads and power pad soldered or welded to PC board, see PCB layout.  
b. Derate 5.9 mW/°C above TA = 70 °C, see PCB layout.  
c. TA = 25 °C, see PCB layout  
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation  
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum  
rating/conditions for extended periods may affect device reliability.  
RECOMMENDED OPERATING RANGE  
PARAMETER  
LIMIT  
UNIT  
V
Input Voltage Range (VIN)  
Operating Junction Temperature Range (TJ)  
1.1 to 5.5  
-40 to +125  
°C  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
2
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
SPECIFICATIONS  
LIMITS  
-40 °C to +85 °C  
TEST CONDITIONS UNLESS SPECIFIED  
IN = 5 V, TA = -40 °C to +85 °C  
V
PARAMETER  
SYMBOL  
UNIT  
(typical values are at TA = 25 °C)  
MIN. a  
TYP. b  
MAX. a  
5.5  
17  
30  
50  
90  
110  
180  
1
Operating Voltage c  
VIN  
1.1  
-
10.5  
21  
34  
54  
68  
105  
-
V
VIN = 1.2 V, EN = active  
VIN = 1.8 V, EN = active  
-
-
VIN = 2.5 V, EN = active  
VIN = 3.6 V, EN = active  
VIN = 4.3 V, EN = active  
-
Quiescent Current  
IQ  
-
-
μA  
V
IN = 5 V, EN = active  
-
Off Supply Current  
IQ(off)  
IDS(off)  
IRB  
EN = inactive, OUT = open  
EN = inactive, OUT = GND  
-
Off Switch Current  
-
-
1
Reverse Blocking Current  
VOUT = 5 V, VIN = 0 V, VEN = inactive  
VIN = 1.2 V, IL = 100 mA, TA = 25 °C  
VIN = 1.8 V, IL = 100 mA, TA = 25 °C  
-
-
10  
76  
72  
72  
72  
72  
72  
-
-
66  
62  
62  
62  
62  
62  
4250  
-
-
V
V
V
IN = 2.5 V, IL = 100 mA, TA = 25 °C  
IN = 3.6 V, IL = 100 mA, TA = 25 °C  
IN = 4.3 V, IL = 100 mA, TA = 25 °C  
-
On-Resistance  
RDS(on)  
TCRDS  
VIL  
mΩ  
-
-
VIN = 5 V, IL = 100 mA, TA = 25 °C  
-
On-Resistance Temp.-Coefficient  
EN Input Low Voltage c  
-
ppm/°C  
VIN = 1.2 V  
VIN = 1.8 V  
VIN = 2.5 V  
VIN = 3.6 V  
VIN = 4.3 V  
VIN = 5 V  
-
0.3  
0.4 d  
0.5 d  
0.6 d  
0.7 d  
0.8 d  
-
-
-
-
-
-
-
-
-
-
-
V
VIN = 1.2 V  
0.9 d  
1.2 d  
1.4 d  
1.6 d  
1.7 d  
1.8  
-1  
-
V
IN = 1.8 V  
IN = 2.5 V  
-
-
V
-
-
EN Input High Voltage c  
VIH  
VIN = 3.6 V  
IN = 4.3 V  
IN = 5 V  
VEN = 5.5 V  
-
-
V
-
-
V
-
-
EN Input Leakage  
ISINK  
RPD  
td(on)  
t(on)  
-
1
μA  
Output Pulldown Resistance  
Output Turn-On Delay Time  
Output Turn-On Rise Time  
Output Turn-Off Delay Time  
EN = inactive, TA = 25 °C (for SiP32402A only)  
-
217  
1.8  
2.5  
-
280  
-
Ω
-
VIN = 3.6 V, RLOAD = 10 Ω, TA = 25 °C  
1.2  
-
3.8  
0.001  
ms  
td(off)  
Notes  
a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.  
b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.  
c. For VIN outside this range consult typical EN threshold curve.  
d. Not tested, guarantee by design.  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
3
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
PIN CONFIGURATION  
Vishay Siliconix  
EN  
IN  
4
3
1
2
OUT  
GND  
Bottom View  
GND  
Fig. 2 - TDFN4 1.2 mm x 1.6 mm Package  
PIN DESCRIPTION  
PIN NUMBER  
NAME  
FUNCTION  
1
OUT  
GND  
IN  
This is the output pin of the switch  
2
3
4
Ground connection  
This is the input pin of the switch  
Enable input  
EN  
TYPICAL CHARACTERISTICS (internally regulated, 25 °C, unless otherwise noted)  
140  
120  
100  
80  
120  
100  
80  
60  
40  
20  
0
VIN = 5 V  
V
IN = 3.6 V  
60  
40  
20  
VIN = 1.2 V  
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
IN (V)  
- 40  
- 20  
0
20  
40  
60  
80  
100  
V
Temperature (°C)  
Fig. 3 - Quiescent Current vs. Input Voltage  
Fig. 5 - Quiescent Current vs. Temperature  
0.50  
0.45  
0.40  
0.35  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
100  
10  
1
0.1  
VIN = 5 V  
VIN = 3.6 V  
0.01  
0.001  
VIN = 1.2 V  
- 40  
- 20  
0
20  
40  
60  
80  
100  
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
VIN (V)  
Temperature (°C)  
Fig. 4 - Off Supply Current vs. Input Voltage  
Fig. 6 - Off Supply Current vs. Temperature  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
4
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
TYPICAL CHARACTERISTICS (internally regulated, 25 °C, unless otherwise noted)  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
1000  
100  
10  
VIN = 5 V  
1
VIN = 3.6 V  
0.1  
0.01  
0.001  
0.0001  
V
IN = 1.2 V  
- 40  
- 20  
0
20  
40  
60  
80  
100  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
5.5  
Temperature (°C)  
VIN (V)  
Fig. 7 - Off Switch Current vs. Input Voltage  
Fig. 10 - Off Switch Current vs. Temperature  
78  
76  
74  
72  
70  
68  
66  
64  
62  
60  
85  
80  
75  
70  
65  
60  
55  
50  
45  
VIN = 5 V  
IO = 0.1 mA  
IO = 2 A  
IO = 1.2 A  
IO = 1 A  
IO = 0.2 A  
IO = 0.1 A  
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
(V)  
- 40  
- 20  
0
20  
40  
60  
80  
100  
V
Temperature (°C)  
IN  
Fig. 8 - RDS(on) vs. VIN  
Fig. 11 - RDS(on) vs. Temperature  
300  
280  
260  
240  
220  
200  
180  
160  
600  
550  
500  
450  
400  
350  
300  
250  
200  
150  
100  
VOUT = VIN = 5 V  
VOUT = VIN  
SiP32402A only  
SiP32402A only  
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
VIN (V)  
- 40  
- 20  
0
20  
40  
60  
80  
100  
Temperature (°C)  
Fig. 9 - Output Pull Down vs. Input Voltage  
Fig. 12 - Output Pull Down vs. Temperature  
Document Number: 63705  
S15-1246-Rev. D, 01-Jun-15  
5
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
TYPICAL CHARACTERISTICS (internally regulated, 25 °C, unless otherwise noted)  
0
- 2  
3
2.5  
2
VIN = 5 V  
L = 0.1 μF  
C
RL = 10 Ω  
- 4  
- 6  
1.5  
1
- 8  
VIN = 0 V  
VEN = 0 V  
- 10  
- 12  
0.5  
0
- 40  
0.5  
1
1.5  
2
2.5  
VOUT (V)  
3
3.5  
4
4.5  
5
5.5  
- 20  
0
20  
40  
60  
80  
100  
Temperature (°C)  
Fig. 13 - Reverse Blocking Current vs. Output Voltage  
Fig. 16 - Turn-on Delay Time vs. Temperature  
0.30  
0.25  
0.20  
0.15  
0.10  
0.05  
0.00  
5.0  
VIN = 5 V  
CL = 0.1 μF  
VIN = 5 V  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
CL = 0.1 μF  
RL = 10 Ω  
RL = 10 Ω  
- 40  
- 20  
0
20  
40  
60  
80  
100  
- 40  
- 20  
0
20  
40  
60  
80  
100  
Temperature (°C)  
Temperature (°C)  
Fig. 14 - Rise Time vs. Temperature  
Fig. 17 - Turn-Off Delay Time vs. Temperature  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
VIH  
VIL  
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
VIN (V)  
Fig. 15 - EN Threshold Voltage vs. Input Voltage  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
6
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
TYPICAL CHARACTERISTICS (internally regulated, 25 °C, unless otherwise noted)  
EN  
EN  
5VOUT  
5VOUT  
3.6VOUT  
3.6VOUT  
1.5VOUT  
1.5VOUT  
IOUT for 5VOUT  
IOUT for 5VOUT  
I
OUT for 3.6VOUT  
I
OUT for 3.6VOUT  
OUT for 1.5VOUT  
I
OUT for 1.5VOUT  
I
2 V/Div, 2 A/Div, 2 ms/Div  
Fig. 18 - Typical Turn-on Delay, Rise Time  
Fig. 21 - Typical Fall Time  
COUT = 0.1 μF, CIN = 4.7 μF, IOUT = 1.5 A  
C
OUT = 0.1 μF, CIN = 4.7 μF, IOUT = 1.5 A  
EN  
EN  
5VOUT  
5VOUT  
3.6VOUT  
3.6VOUT  
1.5VOUT  
1.5VOUT  
I
OUT for 5VOUT  
OUT for 3.6VOUT  
OUT for 1.5VOUT  
I
OUT for 5VOUT  
OUT for 3.6VOUT  
OUT for 1.5VOUT  
I
I
I
I
2 V/Div, 0.25 A/Div, 2 ms/Div  
Fig. 19 - Typical Turn-on Delay, Rise Time  
OUT = 0.1 μF, CIN = 4.7 μF, ROUT = 10 Ω  
Fig. 22 - Typical Fall Time  
COUT = 0.1 μF, CIN = 4.7 μF, ROUT = 10 Ω  
C
EN  
EN  
5VOUT  
5VOUT  
3.6VOUT  
3.6VOUT  
1.5VOUT  
1.5VOUT  
IOUT for 5VOUT  
IOUT for 5VOUT  
IOUT for 3.6VOUT  
I
OUT for 3.6VOUT  
IOUT for 1.5VOUT  
I
OUT for 1.5VOUT  
2 V/Div, 2 A/Div, 2 ms/Div  
Fig. 23 - Typical Fall Time  
2 V/Div, 2 A/Div, 2 ms/Div  
Fig. 20 - Typical Turn-on Delay, Rise Time  
OUT = 200 μF, CIN = 4.7 μF, IOUT = 1.5 A  
C
COUT = 200 μF, CIN = 4.7 μF, IOUT = 1.5 A  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
7
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
EN  
EN  
5VOUT  
5VOUT  
3.6VOUT  
1.5VOUT  
3.6VOUT  
1.5VOUT  
IOUT for 5VOUT  
IOUT for 5VOUT  
IOUT for 3.6VOUT  
IOUT for 3.6VOUT  
IOUT for 1.5VOUT  
IOUT for 1.5VOUT  
2 V/Div, 0.25 A/Div, 2 ms/Div  
Fig. 24 - Typical Turn-on Delay, Rise Time  
2 V/Div, 0.25 A/Div, 2 ms/Div  
Fig. 25 - Typical Fall Time  
C
OUT = 200 μF, CIN = 4.7 μF, ROUT = 10 Ω  
COUT = 200 μF, CIN = 4.7 μF, ROUT = 10 Ω  
BLOCK DIAGRAM  
Reverse  
Blocking  
IN  
OUT  
Charge  
Pump  
Turn On  
Slew Rate Control  
Control  
Logic  
EN  
Note: for SiP32402A only  
GND  
Fig. 26 - Functional Block Diagram  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
8
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
PCB LAYOUT  
Vishay Siliconix  
Top  
Bottom  
Fig. 27 - PCB Layout for TDFN4 1.2 mm x 1.6 mm (type: FR4, size: 1" x 1", thickness: 0.062", copper thickness: 2 oz.)  
DETAILED DESCRIPTION  
SiP32401A and SiP32402A are advanced slew rate  
Enable  
controlled high side load switch consisted of a n-channel  
power switch. When the device is enable the gate of the  
power switch is turned on at a controlled rate to avoid  
excessive in-rush current. Once fully on the gate to source  
voltage of the power switch is biased at a constant level. The  
design gives a flat on resistance throughout the operating  
voltages. When the device is off, the reverse blocking  
circuitry prevents current from flowing back to input if output  
is raised higher than input. The reverse blocking mechanism  
also works in case of no input applied. The SiP32402A also  
integrates an output discharge switch which allows fast  
output discharge.  
The EN pin is compatible with both TTL and CMOS logic  
voltage levels.  
Protection Against Reverse Voltage Condition  
Both SiP32401A and SiP32402A contain reverse blocking  
circuitry to protect the current from going to the input from  
the output in case where the output voltage is higher than  
the input voltage when the main switch is off. Reverse  
blocking works for input voltage as low as 0 V.  
Thermal Considerations  
SiP32401A and SiP32402A are designed to maintain a  
constant output load current. Due to physical limitations of  
the layout and assembly of the device the maximum switch  
current is 2.8 A, as stated in the Absolute Maximum Ratings  
table. However, another limiting characteristic for the safe  
operating load current is the thermal power dissipation of  
the package. To obtain the highest power dissipation (and a  
thermal resistance of 170 °C/W) the power pad of the device  
should be connected to a heat sink on the printed circuit  
board. Figure 23 shows a typical PCB layout. All copper  
traces and vias for the IN and OUT pins should be sized  
adequately to carry the maximum continuous current.  
APPLICATION INFORMATION  
Input Capacitor  
The SiP32401A and SiP32402A do not require an input  
capacitor. To limit the voltage drop on the input supply  
caused by transient inrush currents, an input bypass  
capacitor is recommended. A 2.2 μF ceramic capacitor  
placed as close to the VIN and GND should be enough.  
Higher values capacitor can help to further reduce the  
voltage drop. Ceramic capacitors are recommended for  
their ability to withstand input current surge from low  
impedance sources such as batteries in portable devices.  
The maximum power dissipation in any application is  
dependant on the maximum junction temperature,  
TJ (max.) = 125 °C, the junction-to-ambient thermal  
Output Capacitor  
resistance for the TDFN4 1.2 mm x 1.6 mm package, θJ-A  
=
While these devices works without an output capacitor,  
an 0.1 μF or larger capacitor across VOUT and GND is  
recommended to accommodate load transient condition. It  
also help to prevent parasitic inductance forces VOUT below  
GND when switching off. Output capacitor has minimal  
affect on device’s turn on slew rate time. There is no  
requirement on capacitor type and its ESR.  
170 °C/W, and the ambient temperature, TA, which may be  
formulaically expressed as:  
TJ (max.) - T  
125 - T  
170  
A
A
P (max.)  
=
=
θ
J-  
A
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
9
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
SiP32401A, SiP32402A  
www.vishay.com  
Vishay Siliconix  
It then follows that, assuming an ambient temperature of  
70 °C, the maximum power dissipation will be limited to  
about 324 mW.  
Recommended Board Layout  
For the best performance, all traces should be as short as  
possible to minimize the inductance and parasitic effects.  
The input and output capacitors should be kept as close  
as possible to the input and output pins respectively.  
Connecting the central exposed pad to GND, using wide  
traces for input, output, and GND help reducing the case to  
ambient thermal impedance.  
So long as the load current is below the 2.8 A limit, the  
maximum continuous switch current becomes a function of  
two things: the package power dissipation and the RDS(on) at  
the ambient temperature.  
As an example let us calculate the worst case maximum  
load current at TA = 70 °C. The worst case RDS(on) at 25 °C  
occurs at an input voltage of 1.2 V and is equal to 76 mΩ.  
The RDS(on) at 70 °C can be extrapolated from this data using  
the following formula:  
R
DS(on) (at 70 °C) = RDS(on) (at 25 °C) x (1 + TC x DT)  
Where TC is 4250 ppm/°C. Continuing with the calculation  
we have  
R
DS(on) (at 70 °C) = 76 mΩ x (1 + 0.00425 x (70 °C - 25 °C))  
= 90.5 mΩ  
The maximum current limit is then determined by  
P (max.)  
I
(max.) <  
LOAD  
R
(
on)  
DS  
which in case is 1.9 A. Under the stated input voltage  
condition, if the 1.9 A current limit is exceeded the internal  
die temperature will rise and eventually, possibly damage  
the device.  
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon  
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and  
reliability data, see www.vishay.com/ppg?63705.  
S15-1246-Rev. D, 01-Jun-15  
Document Number: 63705  
10  
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
Package Information  
www.vishay.com  
Vishay Siliconix  
TDFN4 1.2 x 1.6 Case Outline  
D
D2  
b
3
4
3
Pin #1 ID  
(Optional)  
4
2
1
1
2
e
Index Area  
(D/2 x E/2)  
Bottom View  
Top View  
Side View  
MILLIMETERS  
INCHES  
DIM.  
MIN.  
0.45  
0.00  
NOM.  
0.55  
-
MAX.  
0.60  
MIN.  
0.017  
0.00  
NOM.  
0.022  
MAX.  
0.024  
0.002  
A
A1  
A3  
b
0.05  
-
0.15 REF. or 0.127 REF. (1)  
0.006 or 0.005 (1)  
0.20  
1.15  
0.81  
0.25  
1.20  
0.30  
1.25  
0.91  
0.008  
0.045  
0.032  
0.010  
0.012  
0.049  
0.036  
D
0.047  
D2  
e
0.86  
0.034  
0.50 BSC  
1.60  
0.020  
E
1.55  
0.45  
1.65  
0.55  
0.061  
0.018  
0.063  
0.065  
0.022  
E2  
K
0.50  
0.020  
0.25 typ.  
0.30  
0.010 typ.  
0.012  
L
0.25  
0.35  
0.010  
0.014  
ECN: T16-0143-Rev. C, 18-Apr-16  
DWG: 5995  
Note  
(1)  
The dimension depends on the leadframe that assembly house used.  
Revision: 18-Apr-16  
Document Number: 65734  
1
For technical questions, contact: powerictechsupport@vishay.com  
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT  
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000  
PAD Pattern  
Vishay Siliconix  
RECOMMENDED MINIMUM PADS FOR TDFN4 1.2 x 1.6  
0.86  
0.50  
0.30  
3
4
1
2
Recommended Minimum Pads  
Dimensions in mm  
Document Number: 66558  
Revision: 05-Mar-10  
www.vishay.com  
1
Legal Disclaimer Notice  
www.vishay.com  
Vishay  
Disclaimer  
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE  
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.  
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,  
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other  
disclosure relating to any product.  
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or  
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all  
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,  
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular  
purpose, non-infringement and merchantability.  
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of  
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding  
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a  
particular product with the properties described in the product specification is suitable for use in a particular application.  
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over  
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s  
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,  
including but not limited to the warranty expressed therein.  
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining  
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.  
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.  
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for  
such applications.  
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document  
or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.  
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED  
Revision: 08-Feb-17  
Document Number: 91000  
1

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