Datasheet

QTD20.241
Q-Series
24V, 20A, DC INPUT
Mar 2012 / Rev. 1.2 DS-QTD20.241-EN
All parameters are specified at 24V, 20A, 600Vdc input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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5. INPUT VOLTAGE
Input
nom. DC 600V
Input voltage range
480-840Vdc continuous operation
360-480Vdc max. 60 seconds or with de-rating according to Fig. 7-2
840-900Vdc max. 60 seconds or with de-rating according to Fig. 7-2
1000Vdc Absolute maximum input voltage with no damage to the
power supply. Above 900Vdc, the output will switch off
and will turn-on again when the voltage falls below 850V.
Allowed voltage between input
and earth (ground)
max. 600V R.M.S. continuously allowed
max. ±900V peak value, allowed for transients
Slew rate for voltage between
input and earth (ground)
max. 1000V/μs
Allowed input ripple voltage
max. 50Vpp 50Hz-40kHz
Turn-on voltage typ. 450Vdc Steady-state value, see Fig. 5-1
Shut-down voltage typ. 325Vdc Steady-state value, see Fig. 5-1
Input current typ. 0.85A At 600Vdc input, 24V, 20A, see Fig. 5-3
Start-up delay typ. 350ms See Fig. 5-2
Rise time typ. 70ms 0mF, 24V, 20A, see Fig. 5-2
typ. 110ms 20mF, 24V, 20A, see Fig. 5-2
Turn-on overshoot max. 500mV See Fig. 5-2
External capacitors on the input voltage bus are allowed without any limitations.
Fig. 5-1 Input voltage range
Turn-on
450Vdc
V
IN
P
OUT
900Vdc
Shut-down
840Vdc 325Vdc 480Vdc 360Vdc
A: continuously allowed
B
: < 60s or with derating
B A
B
Fig. 5-2 Turn-on behavior, definitions Fig. 5-3 Input current at 600Vdc vs. output load
Start-up
delay
Rise
Time
Overshoot
- 5%
Output
Voltage
Intput
Voltage
20A
2 4 6 8 10 12 14 16 18
0
0.2
0.4
0.6
1.0A
0.8
Output Current
Input Current, typ.
3/22