VCC4_10 Datasheet, PDF (8/9 Pages) Vectron International, Inc – 1.8, 2.5, 3.3, 5.0 volt CMOS Oscillator

VCC4 Data Sheet
Handling Precautions
Although ESD protection circuitry has been designed into the the VCC4, proper precautions should be
taken when handling and mounting. VI employs a Human Body Model and a Charged-Device Model
(CDM) for ESD susceptibility testing and design protection evaluation. ESD thresholds are dependent on
the circuit parameters used to define the model. Although no industry wide standard has been adopted
for the CDM, a standard HBM of resistance = 1.5kohms and capacitance = 100pF is widely used and
therefore can be used for comparison purposes.
Table 9. ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1000
1500
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Suggested IR profile
Devices are built using lead free epoxy and can also be subjected to standard lead free IR reflow
conditions, Table 9 shows max temperatures and lower temperatures can also be used e.g. peak
temperature of 220C.
Table 10. Reflow Profile (IPC/JEDEC J-STD-020B)
Parameter
Symbol
PreHeat Time
t_S
Ramp Up
Time Above 217 ^oC
Time To Peak Temperature
Time At 260 ^oC (max)
Time At 240 °C (max)
Ramp Down
R _UP
t_L
t _AMB-P
t_P
t_p2
R _DN
Value
150 sec Min, 200 sec Max
3 ^oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
30 sec Max
60 sec Max
6 ^oC/sec Max
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
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