RF1K49093 Intersil Corporation, RF1K49093 Datasheet - Page 6

• Manufacturer Part Number: RF1K49093
• Description: 2.5A/ 12V/ 0.130 Ohm/ Logic Level/ Dual P-Channel LittleFET Power MOSFET
• Manufacturer: Intersil Corporation

Test Circuits and Waveforms
Soldering Precautions
The soldering process creates a considerable thermal stress
on any semiconductor component. The melting temperature
of solder is higher than the maximum rated temperature of
the device. The amount of time the device is heated to a high
temperature should be minimized to assure device reliability.
Therefore, the following precautions should always be
observed in order to minimize the thermal stress to which
the devices are subjected.
1. Always preheat the device.
2. The delta temperature between the preheat and soldering
BATTERY
V
should always be less than 100
device can result in excessive thermal stress which can
damage the device.
GS
0
12V
FIGURE 18. SWITCHING TIME TEST CIRCUIT
FIGURE 20. GATE CHARGE TEST CIRCUIT
0.2 F
I
g(REF)
50k
8-157
R
G
DUT
I
G
REGULATOR
SAMPLING
RESISTOR
CURRENT
CURRENT
0.3 F
G
o
C. Failure to preheat the
R
L
(Continued)
D
S
I
SAMPLING
RESISTOR
D
CURRENT
DUT
DUT
-V
(ISOLATED
SUPPLY)
DS
-
+
V
+V
DD
DS
RF1K49093
I
g(REF)
3. The maximum temperature gradient should be less than
4. The peak temperature in the soldering process should be
5. The maximum soldering temperature and time must not
6. After soldering is complete, the device should be allowed
7. During cooling, mechanical stress or shock should be
0
0
V
V
0
0
DD
V
GS
V
5
ing.
at least 30
chosen.
exceed 260
the device.
to cool naturally for at least three minutes, as forced cool-
ing will increase the temperature gradient and may result
in latent failure due to mechanical stress.
avoided.
DS
GS
o
= -1V
FIGURE 19. RESISTIVE SWITCHING WAVEFORMS
C per second when changing from preheating to solder-
-V
GS
FIGURE 21. GATE CHARGE WAVEFORMS
t
d(ON)
10%
o
t
Q
50%
ON
C higher than the melting point of the solder
o
g(TH)
C for 10 seconds on the leads and case of
t
90%
r
Q
10%
PULSE WIDTH
g(-5)
Q
g(TOT)
V
GS
= -5V
t
d(OFF)
V
DS
90%
t
50%
OFF
90%
t
10%
f
V
GS
= -10V