NQB-420NWA-AN Datasheet, PDF (7/30 Pages) CUI INC – FULLY REGULATED ADVANCED BUS CONVERTERS

CUI Inc │ SERIES: NQB-N │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS
Typical Characteristics
12.0 V, 35 A / 420 W
Start-up
Shut-down
date 02/20/2013 │ page 7 of 30
Start-up enabled by connecting V_I at:
T_P1, T_P3 = +25°C, V_I = 53 V,
I_O = 35 A resistive load.
Output Ripple & Noise
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (10 ms/div.).
Shut-down enabled by disconnecting V_I at:
T_P1, T_P3 = +25°C, V_I = 53 V,
I_O =35 A resistive load.
Top trace: output voltage (5 V/div.).
Bottom trace: input voltage (50 V/div.).
Time scale: (2 ms/div.).
Output Load Transient Response
Output voltage ripple at:
T_P1, T_P3 = +25°C, V_I = 53 V,
I_O = 35 A resistive load.
Trace: output voltage (50 mV/div.).
Time scale: (2 µs/div.).
Input Voltage Transient Response
Output voltage response to load current
step-change (8.75-26.25-8.75 A) at:
T_P1, T_P3 =+25°C, V_I = 53 V, C_O = 3.5 mF.
Top trace: output voltage (0.5 V/div.).
Bottom trace: output current (20 A/div.).
Time scale: (0.5 ms/div.).
Output voltage response to input voltage
Top trace: output voltage (2 V/div.).
transient at: T_P1, T_P3 = +25°C, V_I = 36-75 V, Bottom trace: input voltage (20 V/div.).
I_O = 17 A resistive load, C_O = 3.5 mF
Time scale: (0.5 ms/div.).
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