CQHS-2
CQHS
CQHS250
DC-DC Converters Bus Converter
.
Power Module Type
CQH S 250 48 50 -O
Ordering information
1 Series name
2 Single output
3 Output wattage
4 Input voltage
48:DC36 - 76V
5 Output voltage
6 Optional
R : with Remote ON/OFF
Positive logic control
N : Auto restart in protection
circuit working
B : Base plate option with
Mounting hole M3
L2
:Pin length 5.3mm
1 2 3 4 5 6
MODEL CQHS2504832 CQHS2504850
MAX OUTPUT WATTAGE[W] 252.8 250
DC OUTPUT 32V 7.9A 50V 5.0A
SPECIFICATIONS
MODEL CQHS2504832 CQHS2504850
INPUT
VOLTAGE[V] DC36 - 76
CURRENT[A]
*1
5.60typ 5.54typ
EFFICIENCY[%]
*1
94typ 94typ
START-UP VOLTAGE[V] DC32 - 36
HYSTERESIS VOLTAGE[V]
DC2 min
OUTPUT
VOLTAGE[V] 32 50
CURRENT[A] 7.9 5.0
LINE REGULATION[mV] 64max 100max
LOAD REGULATION[mV] 64max 100max
RIPPLE[mVp-p]
-20 to +85C
Vin=36-60V
*2
255max 400max
-20 to +85C
Vin=60-76V
*2
320max 500max
-
40 to -20C
*2
320max 500max
RIPPLE NOISE[mVp-p]
-20 to +85C
*2
320max 500max
-40 to -20C
*2
410max 650max
TEMPERATURE REGULATION[mV]
-40 to +85C
640max 1000max
DRIFT[mV]
*
3
120max 185max
START-UP TIME[ms]
200max (DCIN 48V, Io=100%)
OUTPUT VOLTAGE ADJUSTMENT RANGE[V]
*
4
Fixed (TRM pin open), adjustable by external resistor
26.88 - 35.20 45.0 - 55.0
OUTPUT VOLTAGE SETTING[V]
*1
31.68 - 32.32 49.50 - 50.50
PROTECTION
CIRCUIT AND
OTHERS
OVERCURRENT PROTECTION
Works over 105% of rating, low voltage protection (shut down) function is built-in.
OVERVOLTAGE PROTECTION[V]
36.80 - 44.80 56.50 - 67.50
REMOTE SENSING Provided
REMOTE ON/OFF Provided (Negative Logic L : ON, H :OFF)
ISOLATION
INPUT-OUTPUT
DC1,500V or AC500V 1minute, Cutoff current = 10mA, DC500V 50MW min (20±15C)
INPUT-BASE PLATE
*
5
DC1,500V or AC500V 1minute, Cutoff current = 10mA, DC500V 50MW min (20±15C)
OUTPUT-BASE PLATE
*
5
AC500V 1minute, Cutoff current = 100mA, DC500V 50MW min (20±15C)
ENVIRONMENT
OPERATING TEMP.,HUMID.AND ALTITUDE
-40 to +85C, 20 - 95%RH (Non condensing) (Refer to DERATING CURVE), 3,000m (10,000 feet) max
STORAGE TEMP.,HUMID.AND ALTITUDE
-40 to +100C, 20 - 95%RH (Non condensing), 9,000m (30,000 feet) max
VIBRATION 10 - 55Hz, 49.0m/s
2
(5G), 3minutes period, 60minutes each along X, Y and Z axis
IMPACT 196.1m/s
2
(20G), 11ms, once each along X, Y and Z axis
SAFETY AGENCY APPROVALS UL60950-1, C-UL (CSA60950-1), EN60950-1
OTHERS
CASE SIZE/WEIGHT
57.9X10.5X22.76mm [2.28X0.41X0.9 inches] (WXHXD) / 30g max
58.4X12.7X23.26mm [2.3X0.5X0.92 inches] (WXHXD) / 45g max
*5
COOLING METHOD Convection / Forced air / Conduction
*1 At rated input(DC48V), rated load. Ta= 25C, 2m/s.
*2 Ripple and ripple noise is measured by using measuring board. Refer to the manual.
*3 Drift is the change in DC output for an eight hour period after a half-hour warm-up at 25C, with the input voltage held constant at the rated input/output.
*4 When the input voltage is in the range of DC36-40V, output voltage is limited. Refer to the manual.
*5 Base Plate Option.
me_cqhs.indd CQHS-2me cqhs indd CQHS-2 2015/06/19 11:06:362015/06/19 11:06:36
