The Bel Power Solutions 700DNC40-24-xG is a 4kW DC/DC Converter
that creates DC voltages in hybrid and electric vehicles suitable to
power low voltage accessories.
Liquid cooled or convection cooled DC/DC converter operates at input
voltages from 400 to 850 VDC and delivers power range up to 4000 W
/ 3300 W (liquid / convection cooled model).
Features include very high efficiency, high reliability, low output
voltage noise, and excellent dynamic response to load/input changes.
Very high efficiency up to 93 %
Input voltage range: 400 850 VDC
Up to 4 kW power
Full galvanic isolation between input and output
Liquid or convection cooled models available
CAN bus serial interface
Adjustable output voltage
Over temperature, output overvoltage and overcurrent protection,
input and output reverse polarity protection
Protection degree IP65 and IP67
E-MARK E12*10R00-10R05*13669
Hybrid and electric vehicles
Medium through heavy duty, on and off highway vehicles
2
700DNC40-24-xG
MODEL DESCRIPTION
700DNC40-24-8G Liquid cooled model
700DNC40-24-CG Convection cooled model
Mating connectors kit Signal connector housing and pins, HV connector assembled with 3 m cable
700DNC40-CON-KIT-7G
including HVIL lines
700DNC40-CON-KIT-8G Mating connectors kit Signal connector housing and pins, HV connector assembled with 3 m cable
700DNC40-CON-KIT-9G Mating connectors kit - housing and pins
PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT
Input Voltage 400 700 850 VDC
Input Current ADC
11
Efficiency @ Vin = 700 VDC, Vo = 28 V, Io = 120 A 92 %
Input Line Interruption Converter shutdown 390 VDC
Input Capacitance 30 F
Inrush current External pre-charging circuit required
PARAMETER DESCRIPTION / CONDITION MIN NOM MAX UNIT
Output Voltage Vo to be trimmed via CAN BUS, 10 bit resolution 22 28 32 VDC
Liquid cooled model 143
Output Current @ 28 VDC ADC
Convection cooled model 1 2 0
Liquid cooled model 4000
Output Power W
Convection cooled model 3300
Line Regulation Vinmin - Vinmax, @ 60 A, Tamb = 45C - 0.2 + 0.2 VDC
Output Voltage Set Point @ 60 A, Tcoolant = 25C 27.9 28 28.1 VDC
Thermal Drift -0.1 +0.1 %/C
Periodic and Random @ 28 VDC / Nominal load (Differential Mode 20 MHz) 460 *
mVp-p
Deviation CAN high / low (Differential Mode 20 MHz) 300 *
Load step 1: 10 to 50 % and back
Load step 2: 50 to 100 % and back
Transient Response
mV
Voltage over/under shoot: -1400 +1400
Response time within 1 % of Vo : 1000 s
SET
Turn-on Overshoot Vonom, <100 ms 5 %
Redundant Parallel Operation Up to 4 converters operating in parallel 16 kW
Remote Sense Cable Drop (V) @ Maximum Load 0.5 V
Rise time (Cext = 0 F) 200 ms
Power-on-delay (From applying DC input voltage to Vo = 90 %) 1 s
Turn-On Delay
Power-on-time from PS_WAKE UP (From PS_WAKE UP ON to 3 s
Vo = 90% of nom)
Turn-Off Timing PS_WAKEUP delay; (monotonic Vo fall) 0 100 ms
Capacitive Load @ 28 VDC 0 7200 F
* With external capacitors 47 F (Electrolytic cap) & 1 F (X7R Ceramic cap) connected to measuring point
tech.support@psbel.com