PTC-04244 Series0 pages
PTC-04244 SERIES
DC/DC CONVERTERS
MINIATURE, HIGH DENSITY,
SINGLE OUTPUT
(UP TO 550W)
Applications
Military (Airborne, ground-fix, shipboard), Ruggedized, Telecom, Industrial
Special Features
• Miniature size
• High efficiency
• Wide input range
• Input / Output isolation
• Remote sense
• External On/Off Inhibit
• Fixed switching frequency (250 KHz)
• External synchronization capability
• Sync. Out capability
• EMI/RFI filters included
• Indefinite short circuit protection with
auto-recovery
• Over-voltage shutdown with
auto-recovery
• Over temperature shutdown with
auto-recovery
DC Input:
DC Input range: 18 to 70 VDC,
per MIL-STD-704A
No damage for:
MIL-STD-1275A (100V for 50mSec)
MIL-STD-704A (80V for 0.1Sec)
DC Output:
Output range – 3.3V to 270V
Output current – max 30A
Output power – 500W
Isolation
200V between Input and Output
200V between Input and Case
100V between Output and Case
Line/Load regulation:
Less than 1%
(no load to full load, –55°C to +85°C)
Efficiency :
Typical 80-85% –
(full load, room temperature)
EMI/RFI:
Design to meet or exceed
MIL-STD-461C:CE03, CE07, CS01, CS02,
CS06, RE02, RS02, RS03
Ripple and Noise:
Less than 50mVp-p, typical (max. 1%)
without external capacitance.
When connected to system capacitance
ripple drops significantly
Load Transient Overshoot and
Undershoot
Output resistance at load change of 50%100% is 30-120mOhm (depending on output
voltage). Output back to steady stated within
300-500µSec
Turn on Transient
Voltage overshoot at during power on is
less than 3% nominal voltage
Output
• Electronic over voltage protection –
Internal control protects unit (no damage)
10% above nominal voltage
• Passive tranzorb on outputs –
20% above nominal voltage
• Current limiting – Continuous protection
(10-30% above maximum current) for
unlimited time (Hiccup)
General
• Over temperature protection:
Shutdown at base plate temperature of
+105°C (±5°C) Automatic recovery at
base plate temperature lower than
+95°C (±5°C)
Electrical Specifications
Protections*
Input
• Inrush Current Limiter –
peak value of 5 x Iin for less than 50µSec
• Under voltage protection –
unit protects itself (no damage) below
16.5Vdc
• Over voltage protection –
unit protects itself (no damage) above
75Vdc
* Thresholds and protections can be modified / removed – please consult factory.
PTC
Production & Trading Company AG
Gewerbestrasse 9, P.O. Box, CH-6330 Cham, Switzerland
phone 041 740 4554, fax 041 740 4664, http://www.ptcag.ch, e-mail: ptc@bluewin.ch
FILE: PTC-04244, Page 1 of 4
Rev - ;Date 2011-06-15