Delta Electronics Series E48SH manual Technical Specifications, Parameter

TECHNICAL SPECIFICATIONS

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

PARAMETER	NOTES and CONDITIONS	E48SH3R330 (Standard)
		Min.	Typ.	Max.	Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous				75	Vdc
Transient (100ms)	100ms			100	Vdc
Operating Temperature	Refer to Figure 21 for measuring point	-40		129	°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		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			3.6	A
No-Load Input Current			50	120	mA
Off Converter Input Current			3	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		50		dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point	Vin=48V, Io=Io.max, Tc=25°C	3.257	3.300	3.333	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 115°C		±15		mV
Total Output Voltage Range	over sample load, line and temperature	3.24		3.35	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		30	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		30		mV
Negative Step Change in Output Current	75% Io.max to 50% Io.max		30		mV
Settling Time (within 1% Vout nominal)			100		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; no overshoot of Vout at startup			10000	µF
EFFICIENCY
100% Load			92		%
60% Load			92.5		%
ISOLATION CHARACTERISTICS
Input to Output				2250	Vdc
Isolation Resistance				10	MΩ
Isolation Capacitance			1500		pF
FEATURE CHARACTERISTICS
Switching Frequency			240		kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)	Von/off at Ion/off=1.0mA	0		1.2	V
Logic High (Module Off)	Von/off at Ion/off=0.0 µA	3		50	V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)	Von/off at Ion/off=1.0mA	0		1.2	V
Logic High (Module On)	Von/off at Ion/off=0.0 µA	3		50	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	-20		10	%
Output Voltage Remote Sense Range	Pout ≦ max rated power			10	%
Output Over-Voltage Protection	Over full temp range; % of nominal Vout	118		130	%
GENERAL SPECIFICATIONS
CMTBF	Io=80% of Io, max; Ta=25℃, airflow rate=300FLM		4.1		M hours
Weight			25		grams
Over-Temperature Shutdown	Refer to Figure 21 for measuring point		135		°C

E48SH3R330_02162007

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