SI1867DL-T1-E3 Vishay, SI1867DL-T1-E3 Datasheet - Page 8

• Manufacturer Part Number: SI1867DL-T1-E3
• Description: IC LOAD SW LVL SHIFT 1.2A SC70-6
• Manufacturer: Vishay
• Series: -r
• Type: High Side Switchr

Specifications of SI1867DL-T1-E3

• Number Of Outputs: 1
• Rds (on): 1.2 Ohm
• Internal Switch(s): Yes
• Current Limit: 600mA
• Voltage - Input: 1.8 V ~ 8 V
• Operating Temperature: -
• Mounting Type: Surface Mount
• Package / Case: 6-TSSOP, SC-88, SOT-363
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AN814
Vishay Siliconix
NOTE: Although they are intended for low-power applications,
devices in the 6-pin SC-70 will handle power dissipation in
excess of 0.2 W.
Testing
To aid comparison further, Figure 2 illustrates the dual-channel
SC-70 thermal performance on two different board sizes and
two different pad patterns. The results display the thermal
performance out to steady state. The measured steady state
values of Rθ
www.vishay.com
2
SC-70 (6-PIN)
LITTLE FOOT SC-70 (6-PIN)
1) Minimum recommended pad pattern (see
Figure 2) on the EVB of 0.5 inches x
0.6 inches.
2) Industry standard 1” square PCB with
maximum copper both sides.
Room Ambient 25 _C
P
P
P
D
D
D
+
+ 150
+ 312 mW
T
JA
J(max)
400
for the dual 6-pin SC-70 are as follows:
Rq
o
C * 25
o
JA
* T
C W
A
o
C
Elevated Ambient 60 _C
P
P
P
D
D
D
+
+ 150
+ 225 mW
T
518_C/W
413_C/W
J(max)
400
Rq
o
C * 60
o
JA
* T
C W
A
o
C
The results show that if the board area can be increased and
maximum copper traces are added, the thermal resistance
reduction is limited to 20%. This fact confirms that the power
dissipation is restricted with the package size and the Alloy 42
leadframe.
ASSOCIATED DOCUMENT
Single-Channel LITTLE FOOT SC-70 6-Pin MOSFET Copper
Leadframe Version, REcommended Pad Pattern and Thermal
Performance, AN815, (http://www.vishay.com/doc?71334).
FIGURE 2.
500
400
300
200
100
0
10
-5
10
-4
Comparison of Dual SC70-6 on EVB and 1”
Square FR4 PCB.
10
-3
10
-2
Time (Secs)
Dual EVB
10
-1
1” Square FR4 PCB
1
Document Number: 71237
10
100
12-Dec-03
1000