Delta Electronics Series S48SP manual Technical Specifications, Parameter

TECHNICAL SPECIFICATIONS

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

PARAMETER	NOTES and CONDITIONS	S48SP3R310 (Standard)
		Min.	Typ.	Max.		Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous				80		Vdc
Transient (100ms)	100ms			100		Vdc
Operating Temperature	Refer to Figure 20 for the measuring point	-40		110		°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		1.0	2	3.0		Vdc
Maximum Input Current	100% Load, 36Vin			1.10		A
No-Load Input Current			40			mA
Off Converter Input Current			10			mA
Inrush Current (I2t)				0.01		A2s
Input Reflected-Ripple Current	P-P thru 12µH inductor, 5Hz to 20MHz		10			mA
Input Voltage Ripple Rejection	120 Hz		60			dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point	Vin=48V, Io=Io.max, Tc=25°C	3.25	3.3	3.35		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 to 100°C		±33			mV
Total Output Voltage Range	Over load, line and temperature	3.2		3.4		V
Output Voltage Ripple and Noise	5Hz to 20MHz bandwidth
Peak-to-Peak	Full Load, 1µF ceramic, 10µF tantalum		30	60		mV
RMS	Full Load, 1µF ceramic, 10µF tantalum		10	20		mV
Operating Output Current Range		0		10		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		100			mV
Negative Step Change in Output Current	75% Io.max to 50% Io.max		100			mV
Settling Time (within 1% Vout nominal)			50			us
Turn-On Transient
Start-Up Time, From On/Off Control			15			ms
Start-Up Time, From Input			15			ms
Maximum Output Capacitance	Full load; 5% overshoot of Vout at startup			5000		µF
EFFICIENCY
100% Load			90.0		%
60% Load			89.0		%
ISOLATION CHARACTERISTICS
Input to Output				2250		Vdc
Isolation Resistance		10				MΩ
Isolation Capacitance			1000			pF
FEATURE CHARACTERISTICS
Switching Frequency			400			kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)	Von/off	-0.7		0.8		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		0.8		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		0.25			mA
Leakage Current (for both remote on/off logic)	Logic High, Von/off=15V			30		uA
Output Voltage Trim Range	Across Trim Pin & +Vo or -Vo, Pout≦max rated	-10%		10%	%
Output Over-Voltage Protection	Over full temp range; % of nominal Vout	3.8		4.62		V
GENERAL SPECIFICATIONS
MTBF	Io=80% of Io, max; Ta=25°C; air flow 300LFM		1.98			M hours
Weight			10.5			grams
Over-Temperature Shutdown	Refer to Figure 20 for the measuring point		117			°C

DS_S48SP3R310_05222008 2