DIM datasheet(7/13 Pages) DELTA

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DATASHEET

DS_DIM3R3_09102010

7

ELECTRICAL CHARACTERISTICS CURVES

Figure 9: MGMT_PWR (3.3V) and BLUE_LED_PWR (5V)

output ripple/noise (2uS/div):

CH1: Vo, MGMT_PWR (20mV/div).

CH2: Vo, 5V BLUE_LED_PWR (20mV/div).

Test conditions:

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

(2) I(3.3V)=1.25A,I(5V BLUE_LED_PWR)=0.1A

I(VRTN_OUT)=6.3A

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

Figure 10: MGMT_PWR (3.3V) dynamic response

(1mS/div):

CH1: Vo, MGMT_PWR (50mV/div).

CH2: Io, MGMT_PWR (1A/div)

Test conditions:

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

(2) 3.3V MGMT_PWR load current (50%-75%-50% of Io,max,

di/dt = 0.1A/µs),

I(VRTN_OUT)=6.3A.

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

CH 1

CH 2

CH 1

CH 2

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