KC80526LY400128 Intel, KC80526LY400128 Datasheet - Page 30

• Manufacturer Part Number: KC80526LY400128
• Manufacturer: Intel

Specifications of KC80526LY400128

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

4.7.4
This section provides the results of a worst case, surge
current analysis. The analysis determines the maximum
amount of surge current that the Celeron processor mobile
module MMC-1 can manage.
In the analysis, the module has two 4.7 microfarads with an
ESR of 0.15 ohms total. The MMC-1 connector is
approximately 30 milliohms of series resistance, for a total
series resistance of .18 ohms. If the user powers the system
1.
2.
3.
4.
Power Plane
Placement of above capacitance requirements should be located near the connector.
V_CPUIO filtering should be located next to the system clock synthesizer.
Ripple current specification depends on V_DC input. For 5.0-V V_DC, a 3.5A device is required.
For V_DC at 18V or higher, 1A is sufficient.
V_CPUIO
V_DC
V_3S
V_5
V_3
Surge Current Guidelines
NOTES:
2
Capacitance Requirements
100 uf, 0.1 uf, 0.01 uf
100 uf, 0.1 uf, 0.01 uf
470 uf, 0.1 uf, 0.01 uf
100 uf, 0.1 uf, 0.01 uf
2.2 uf, 8200 pf
Table 21. Capacitance Requirements per Power Plane
Figure 6. Instantaneous In-rush Current Model
1
1
1
1
1
100 m
100 m
100 m
20 m
ESR
N/A
with the A/C adapter (18 volts), the amount of surge current
on the module would be approximately 100 amperes. This
information is also used to develop I/O bulk capacitance
requirements. See Table 20 for more information.
Note: Depending on the system electronics design, different
impedances may yield different result. A thorough analysis
should be performed to understand the implications of surge
current on their system.
Figure 6 shows an electrical model used when analyzing
instantaneous power-on conditions, and Figure 7 illustrates
the results with a SPICE simulation.
Intel Celeron
Ripple Current
1-3.5A
At 400 MHz, 366 MHz, 333 MHz, and 300 MHz
N/A
N/A
1A
1A
3
Processor Mobile Module MMC-1
20% tolerance at 35V
20% tolerance at 10V
20% tolerance at 6V
20% tolerance at 6V
20% tolerance at 6V
Rating
30