mic94082yft Micrel Semiconductor, mic94082yft Datasheet - Page 14

• Manufacturer Part Number: mic94082yft
• Description: 67m? Rdson 2a High Side Load Switch In 0.85mm X 0.85mm Thin Mlf Package
• Manufacturer: Micrel Semiconductor

The worst case switch resistance (R
V
lower value of V
If this were a figure for worst case R
additional consideration is to allow for the maximum
junction temperature of 125ºC, the actual worst case
Micrel, Inc.
December 2008
IN
of 3V is not available in the datasheet, so the next
P
R
DISS
SWmax
= I
@ 2.5v = 200mΩ
SW
2
x R
IN
is used.
SWmax
SWmax
SWmax
) at the lowest
for 25ºC, an
14
resistance in this case can be 30% higher (See R
variance vs. temperature graph). However, 200mΩ is the
maximum over temperature.
Therefore:
This is below the maximum 125ºC.
T
T
J
J
= 1
= 78ºC
2
x 0.2 x (85+53) + 50
MIC94080/1/2/3/4/5
M9999-120208-B
DSON