Delta Electronics Series H48SA manual Technical Specifications, Parameter

TECHNICAL SPECIFICATIONS

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

PARAMETER		NOTES and CONDITIONS		H48SA12025 (Standard)
				Min.	Typ.	Max.	Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous						80	Vdc
Transient (100ms)		100ms				100	Vdc
Operating Device Temperature(Openframe)		Please refer to fig24. for	the measuring point	-40		122	°C
Operating Device Temperature(Heatspreader)		Please refer to fig25. for	the measuring point	-40		109	°C
Storage Temperature				-55		125	°C
Input/Output Isolation Voltage						2250	Vdc
INPUT CHARACTERISTICS
Operating Input Voltage				36	48	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		Vin=36V, 100% Load				9.5	A
No-Load Input Current					170	240	mA
Off Converter Input Current						18	mA
Inrush Current(I2t)		With 100uF external input cap				1	A2S
Input Terminal Ripple Current		RMS, With 100uF/0.1ohm input cap, 100% Load				0.42	A
Input Reflected-Ripple Current	P	k-Pk, thru 12µH inductor, 5Hz to 20MHz, 100% Load			7		mA
Input Voltage Ripple Rejection		120 Hz			50		dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point		Vin=48V, Io=Io.max, Tc=25℃		11.82	12	12.18	Vdc
Output Voltage Regulation
Over Load		Io=Io,min to Io,max			±10		mV
Over Line		Vin=36V to 75V			±10		mV
Over Temperature		Tc=-40℃to 100℃			±120		mV
Total Output Voltage Range		over sample load, line and temperature		11.64		12.36	V
Output Voltage Ripple and Noise		5Hz to 20MHz bandwidth
Peak-to-Peak		100% Load, 1µF ceramic, 10µF tantalum			60	120	mV
RMS		100% Load, 1µF ceramic, 10µF tantalum			30	60	mV
Operating Output Current Range		Full input range		0		25	A
Operating Output Power Range		Full input range		0		300	W
Output DC Current Protection		Full input range		110		150	%
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			400		mV
Negative Step Change in Output Current		75% Io,max to 50% Io,max			400		mV
Settling Time (within 1% Vout nominal)					400		uS
Turn-On Transient
Start-Up Time, From On/Off Control				12		28	mS
Start-Up Time, From Input				12		28	mS
Maximum Output Capacitance		100% Resistor load; 5% overshoot of Vout at startup				10000	µF
EFFICIENCY
100% Load		Vin=48V			93.2		%
60% Load		Vin=48V			92.5		%
ISOLATION CHARACTERISTICS
Input to Output						2250	Vdc
Isolation Resistance				10			MΩ
Isolation Capacitance					1500		pF
FEATURE CHARACTERISTICS
Switching Frequency					300		kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)		Von/off		-2		1.2	V
Logic High (Module Off)		Von/off		3		18	V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)		Von/off		-2		1.2	V
Logic High (Module On)		Von/off		3		18	V
ON/OFF Current (for both remote on/off logic)		Ion/off at Von/off=0.0V				0.3	mA
ON/OFF Current (for both remote on/off logic)		Ion/off at Von/off=3V		10			uA
Leakage Current(for both remote on/off logic)		Logic High, Von/off=15V				100	uA
Output Voltage Trim Range		Pout <= max rated power		9.6		13.2	V
Output Voltage Remote Sense Range		Pout <= max rated power				10	%
Output Over-Voltage Protection		Over full input range; Over full temp range		115		140	%
GENERAL SPECIFICATIONS
MTBF		Io=80% of Io, max; Ta=25°C,airflow rate=300 LFM			1.5		M hours
Weight		Open frame			80		grams
Over-Temperature Shutdown(Openframe)		Please refer to Fig 24. for	the measuring point		127		°C
Over-Temperature Shutdown(Heatspreader)		Please refer to Fig 25. for	the measuring point		116		°C

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DS_H48SA12025_05052008