Intel MPCMM0002 manual CDM Power, Voltage Usage, Voltage Max Where Used Monitored By Current

Backplane Considerations—MPCMM0002 CMM

Figure 11. Power System Block Diagram

-48V

Power Enable (MLBF)

-48VReturn

				-48V to
		Filter		3.3V
			Cap
				Power
	Hotswap
				Brick
Controller

ADM1026 PG33

CPLD PG5

LT1371

LT1930

TPS54610

TPS54610

Discrete

Linear

Regulator

3.3V

5V

12V

2.5V

1.3V

1.25V

Table 4.	Voltage Usage
	Voltage	Max	Where Used	Monitored By
		Current
	12 V	0.3 A	Op Amp and IPMB isolation circuit	ADM1026
	5 V	1 A	Misc components that cannot use 3.3 V	ADM1026
	3.3 V	4 A	Most logic	ADM1026
	2.5 V	5 A	Memory interface	ADM1026
	1.3 V	3 A	IOP321 core	ADM1026
	1.25 V	1 A	DDR Termination	ADM1026

The CMM supports an input voltage range of –34 VDC to –72 VDC. However, the 5 ms ride-through capability (see Section 4.12, “Ride-Through Support” on page 21) assumes a prior minimum voltage of –43 VDC.

6.2.2CDM Power

The CMM provides a few powered outputs that chassis designers can use as they see fit. The chassis data modules (sometimes called shelf FRUs) are described in more detail in Section 8.0, “Chassis Data Modules (CDMs)” on page 43. Each CMM provides a diode-OR’d 5 V output at 50 mA maximum current to the CDMs. Chassis designers can use this 5 V output to power simple EEPROMs in a CDM. The CMMs can both drive a tricolor LED on the CDM as well.

	Intel NetStructure® MPCMM0002 Chassis Management Module
July 2007	Hardware TPS
Order Number: 309247-004US	29