Crane Aerospace & Electronics Power Solutions
sMrt28 singlꢂ, Dꢀꢄl ꢄnd tꢃiplꢂ spꢄꢇꢂ Dc/Dc convꢂꢃꢁꢂꢃꢈ
28 VOLt Iꢆꢅut – 35 Watt – sꢅace quaLIFIeD
Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
ꢀOTES: TRIPLE OUTPUT MODELS
1. ꢊꢀꢄꢃꢄnꢁꢂꢂd by dꢂꢈign, noꢁ ꢁꢂꢈꢁꢂd.
2. Up to the maximum specified auxiliary output current/power is available from either auxiliary output provided the total auxiliary output current/
power does not exceed the total current/power specified .
3. To maintain tight regulation over the full input voltage range a minimum load of 2% of full load should be used on all outputs.
4. To maintain the cross regulation specification, one of the auxiliaries must always provide a minimum of 20% of the total auxiliary power used.
ꢀegative Vout cross regulation is referenced to 50%/50% balanced loads (at 100% of total rated output power - full load).
5. Cross regulation is measured under the following conditions:
Condition 1: +POUT = 20 - 80%,/- POUT = 80 - 20%
Condition 2: - POUT = 20 - 80%, /+ POUT = 80 - 20%
6. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-/F-CE-102. The actual value of input ripple
current is much less, the limit in the characteristic table is based on measurement resolution.
7. Efficiency measured with all outputs at full load.
8. Maximum power dissipation when all outputs are shorted simultaneously.
9. Recovery time is measured from application of the transient to point at which VOUT is within 1% of VOUT at final value.
10. Transition time >10 µs.
11. Half load to/from full load.
12. Measured from release of inhibit or input voltage step.
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SMRT28 Rev E - 20100216
CRANE [ Crane Aerospace & Electronics. ]
