Delta Electronics Series V48SR Technical Specifications, Parameter, NOTES and CONDITIONS, Units

TECHNICAL SPECIFICATIONS

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

PARAMETER	NOTES and CONDITIONS		V48SR15004 (Standard)
			Min.	Typ.	Max.	Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous					80	Vdc
Transient (100ms)	100ms				100	Vdc
Operating Temperature	Refer to figure 21 for measuring point		-40		121	°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			32.5	34	35.5	Vdc
Turn-Off Voltage Threshold			30.5	32	33.5	Vdc
Lockout Hysteresis Voltage			1	2	3	Vdc
Maximum Input Current	100% Load, 36Vin				2.3	A
No-Load Input Current				50		mA
Off Converter Input Current				10		mA
Inrush Current (I2t)					1	A2s
Input Reflected-Ripple Current	P-P thru 12µH inductor, 5Hz to 20MHz			20		mA
Input Voltage Ripple Rejection	120 Hz			60		dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point	Vin=48V, Io=Io.max, Tc=25°C		14.85	15.00	15.15	Vdc
Output Voltage Regulation
Over Load	Io=Io, min to Io, max			±3	±10	mV
Over Line	Vin=36V to 75V			±3	±10	mV
Over Temperature	Tc=-40°C to125°C			±150		mV
Total Output Voltage Range	Over sample load, line and temperature		14.55		15.45	V
Output Voltage Ripple and Noise	5Hz to 20MHz bandwidth
Peak-to-Peak	Full Load, 1µF ceramic, 10µF tantalum			120	200	mV
RMS	Full Load, 1µF ceramic, 10µF tantalum			30	60	mV
Operating Output Current Range			0		4.4	A
Output Over Current Protection	Output Voltage 10% Low		110		140	%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient	48V, 10µF Tan & 1µF Ceramic load cap, 0.1A
Positive Step Change in Output Current	50% Io.max to 75% Io.max			300		mV
Negative Step Change in Output Current	75% Io.max to 50% Io.max			300		mV
Settling Time (within 1% Vout nominal)				200		us
Turn-On Transient
Start-Up Time, From On/Off Control					30	ms
Start-Up Time, From Input					30	ms
Maximum Output Capacitance	Full load; 5% overshoot of Vout at startup				1000	µF
EFFICIENCY
100% Load				90.5		%
60% Load				90.5		%
ISOLATION CHARACTERISTICS
Input to Output					2250	Vdc
Isolation Resistance			10			MΩ
Isolation Capacitance				1100		pF
FEATURE CHARACTERISTICS
Switching Frequency			380	420	460	kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)	Von/off				0.7	V
Logic High (Module Off)	Von/off		2		18	V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)	Von/off				0.7	V
Logic High (Module On)	Von/off		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	Pout ≦ max rated power	-15			10	%
Output Voltage Remote Sense Range	Pout ≦ max rated power				10	%
Output Over-Voltage Protection	Over full temp range; % of nominal Vout	115			170	%
GENERAL SPECIFICATIONS
MTBF	Io=80% of Io, max; Ta=25°C, airflow rate=300FLM			T2.46		M hours
Weight				16		grams
Over-Temperature Shutdown	Refer to figure 21 for measuring point			126		°C

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