DIM3R3300SFB datasheet(6/13 Pages) DELTA

Part #	DIM3R3300SFB

Description	Inrush protection and hot swap capability

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Manufacturer	DELTA [Delta Electronics, Inc.]

Direct Link	http://www.deltaww.com

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6 / 13 page

DATASHEET

DS_DIM3R3_09102010

6

ELECTRICAL CHARACTERISTICS CURVES

Figure 5: Hold up performance (5mS/div):

CH1: Vin (VRTN_AF reference to -48V_AF, 10V/div).

CH2: Iin (2A/div).

CH3: 12V Vout (5V/div).

CH4: VRTN_OUT reference to

–48V_OUT (10V/div).

Test conditions:

(1) Feed A=48Vdc; Feed B=0Vdc

(2) Q48SH12025: I(12V Out)=22.5A, I(3.3V)=2.5A,

I(5V BLUE_LED PWR)=0A.

(3) C2=220uF, C_hold=470uF X4

Figure 6: -48V_ALARM with loss of Feed (20mS/div):

CH1: VinA (VRTN_AF reference to -48V_AF, 20V/div).

CH2: VinB (VRTN_BF reference to -48V_BF, 20V/div).

CH3: -48V_ALARM (2V/div)

Test conditions:

(1) Feed A turn off from 48Vdc; Feed B=48Vdc.

(2) Q48SH12025: I(12V Out)=22.5A, I(3.3V)=2.5A,

I(5V BLUE_LED PWR)=0A.

(3) C2=220uF, C_hold=220uF

Figure 7: Efficiency vs. load current for minimum, nominal,

and maximum input voltage at 25°C:

Test conditions:.

(1) I(MGMT_PWR)=0A; I(5V BLUE_LED PWR)=0A;

(2) C2=220uF, C_hold=220uF

(3)Po( VRTN_OUT ref to -48V_OUT)from 30W to 300W

Figure 8: MGMT_PWR (3.3V) and BLUE_LED_PWR (5V)

start up waveform (10mS/div):

CH1: VinA (VRTN_AF referenced to -48V_AF, 50V/div).

CH2: V(MGMT_PWR) (1V/div);

CH3: V(5V BLUE_LED_PWR) (1V/div)

Test conditions:

(1) Feed A=48Vdc; Feed B=0Vdc

(2) I(VRTN_OUT)=1A,I(3.3V)=2.5A,

I(5V BLUE_LED PWR)=0.1A

(3) C2=220uF, C_hold=220uF

CH2

CH3

CH1

CH2

CH4

CH1

CH3

CH2

CH1

CH3

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