Delta Electronics E48SR manual Technical Specifications, Parameter

TECHNICAL SPECIFICATIONS

(TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted)

PARAMETER	NOTES and CONDITIONS	E48SR15004 (Standard)
		Min.	Typ.	Max.	Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous				80	Vdc
Transient (100ms)	100ms			100	Vdc
Operating Case Temperature	Please refer to Fig. 21 for the measuring point	-40		106	°C
Storage Temperature		-55		125	°C
Input/Output Isolation Voltage				2250	Vdc
INPUT CHARACTERISTICS
Operating Input Voltage		36		75	Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold		33	34	35	Vdc
Turn-Off Voltage Threshold		31	32	33	Vdc
Lockout Hysteresis Voltage		1	2	3	Vdc
Maximum Input Current	100% Load, 36Vin			2.2	A
No-Load Input Current			60	100	mA
Off Converter Input Current			4	10	mA
Inrush Current(I2t)				1	A2s
Input Reflected-Ripple Current	P-P thru 12µH inductor, 5Hz to 20MHz		25		mA
Input Voltage Ripple Rejection	120 Hz				dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point	Vin=48V, Io=Io.max, Tc=25°C	14.850	15.000	15.150	Vdc
Output Voltage Regulation
Over Load	Io=Io,min to Io,max		±5	±15	mV
Over Line	Vin=36V to 75V		±5	±15	mV
Over Temperature	Tc=-40°C to 85°C		±100		mV
Total Output Voltage Range	over sample load, line and temperature				V
Output Voltage Ripple and Noise	5Hz to 20MHz bandwidth
Peak-to-Peak	Full Load, 1µF ceramic, 10µF tantalum		80	120	mV
RMS	Full Load, 1µF ceramic, 10µF tantalum		25	40	mV
Operating Output Current Range		0		4	A
Output DC Current-Limit Inception	Output Voltage 10% Low	110		140	%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient	48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current	50% Io.max to 75% Io.max		150	320	mV
Negative Step Change in Output Current	75% Io.max to 50% Io.max		150	320	mV
Settling Time (within 1% Vout nominal)			200		us
Turn-On Transient
Start-Up Time, From On/Off Control			6	12	ms
Start-Up Time, From Input			6	12	ms
Maximum Output Capacitance	Full load; 5% overshoot of Vout at startup			1000	µF
EFFICIENCY
100% Load			91.5		%
60% Load			90.5		%
ISOLATION CHARACTERISTICS
Input to Output				2250	Vdc
Isolation Resistance		10			MΩ
Isolation Capacitance			1500		pF
FEATURE CHARACTERISTICS
Switching Frequency			350		kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)	Von/off at Ion/off=1.0mA	0		0.7	V
Logic High (Module Off)	Von/off at Ion/off=0.0 µA	2		18	V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)	Von/off at Ion/off=1.0mA	0		0.7	V
Logic High (Module On)	Von/off at Ion/off=0.0 µA	2		18	V
ON/OFF Current (for both remote on/off logic)	Ion/off at Von/off=0.0V			1	mA
Leakage Current (for both remote on/off logic)	Logic High, Von/off=15V			50	uA
Output Voltage Trim Range	Across Pins 9 & 5, Pout ≦ max rated power	13.05		16.95	V
Output Voltage Remote Sense Range	Pout ≦ max rated power			10	%
Output Over-Voltage Protection	Over full temp range; % of nominal Vout	17.25		21.75	V
GENERAL SPECIFICATIONS
MTBF	Io=80% of Io, max; Ta=25°C		2.11		M hours
Weight			19.6		grams
Over-Temperature Shutdown	Refer to Fig. 21 for the measuring point		114		°C

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DS_E48SR15004_05222008 2