Characteristic curves – GE Industrial Solutions PIM300X Series User Manual

Page 8

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Data Sheet

November 29, 2010

PIM300X Series; ATCA Board Power Input Modules

-38 to -75Vdc; 300W Input

LINEAGE

POWER

8

Characteristic Curves

(continued)

The following figures provide typical characteristics for the PIM300X modules at 25ºC.

Figure 5. Input Voltage Turn-On Threshold

CH1: -48_AF, CH2: -48V_OUT,

CH4: Iin(-48_AF)

Test Conditions:

-48_AF=-48Vdc, -48V_BF=0Vdc

I(-48V_OUT)=1A, I(MGMT_PWR)=0A

C_FLTR=200

μF, C_HLDP=0μF

Figure 6. Input Voltage Turn-Off Threshold

CH1: -48_AF, CH2: -48V_OUT,

CH4: Iin(-48_AF)

Test Conditions:

-48_AF=-48Vdc, -48V_BF=0Vdc

I(-48V_OUT)=1A, I(MGMT_PWR)=0A

C_FLTR=200

μF, C_HLDP=0μF

Figure 7. Loss of Feed A; Switchover to Feed B

CH1: MGMT_PWR, CH2: -48V_OUT,

CH3: Iin(-48_AF), CH4: Iin(-48V_BF)

Test Conditions:

1. Feed A (-48V_AF=60V) > Feed B (-48V_BF=48V)

2. Fast Loss of Feed A; Switchover to Feed B

3. PIM300F @ Max Load (Pin=300W)

4. C_FLTR=200

μF, C_HLDP=4X470μF

Figure 8. Holdup Performance; Loss of
Feed A (with Feed B=0Vdc); Load=QBW

CH1: Iin(-48V_AF), CH2: 48_AF,

CH3: 48V_OUT, CH4: 12Vout

Test Conditions:

1. 48_AF= 43Vdc; 48V_BF=0 Vdc

2. Pin=300W; 12Vout=22.5A; 3.3V=2.42A

3. C_FLTR=200

μF, C_HLDP=Qty4 X 470μF

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