Delta Electronics Q48SP manual Technical Specifications, Parameter

TECHNICAL SPECIFICATIONS

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

PARAMETER	NOTES and CONDITIONS			Q48SP12017NRFA
			Min.		Typ.	Max.	Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous		-0.5				80	Vdc
Transient (100ms, non-operating)	100ms					100	Vdc
Operating Temperature	Refer to Figure 22 for the measuring point	-40				120	°C
Storage Temperature			-40			105	°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	36	Vdc
Turn-Off Voltage Threshold		30			32	34	Vdc
Lockout Hysteresis Voltage			1		2	3	Vdc
Maximum Input Current	100% Load, 36Vin					7	A
No-Load Input Current						140	mA
Off Converter Input Current						11	mA
Inrush Current (I2t)						1	A2S
Input Reflected-Ripple Current	P-P thru 12µH inductor, 5Hz to 20MHz				10		mA
Input Voltage Ripple Rejection	120 Hz				50		dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point	Vin=48V, Io=Io.max, Ta=25C		11.8		12	12.2	Vdc
Output Voltage Regulation
Over Load	Io=Io,min to Io,max				6	24	mV
Over Line	Vin=36V to 75V				6	24	mV
Over Temperature	Ta=-40C to135C				32	60	mV
Total Output Voltage Range	over sample load, line and temperature	11.6				12.4	V
Output Voltage Ripple and Noise	5Hz to 20MHz bandwidth
Peak-to-Peak	Full Load, 1µF ceramic, 10µF tantalum					150	mV
RMS	Full Load, 1µF ceramic, 10µF tantalum					50	mV
Operating Output Current Range		0				18	A
Output DC Current-Limit Inception	Output Voltage 10% Low		19		21	24	A
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				300		mV
Negative Step Change in Output Current	75% Io,max to 50% Io,max				300		mV
Settling Time (within 1% Vout nominal)					400		uS
Turn-On Transient
Start-Up Time, From On/Off Control					8		mS
Start-Up Time, From Input					6		mS
Maximum Output Capacitance	Full load; 5% overshoot of Vout at startup	0				`1500	µF
EFFICIENCY
100% Load					92.5		%
ISOLATION CHARACTERISTICS
Input to Output						2250	Vdc
Isolation Resistance		10					MΩ
Isolation Capacitance					1000		pF
FEATURE CHARACTERISTICS
Switching Frequency					300		kHz
ON/OFF Control, (Logic Low-Module ON)
Logic Low	Von/off at Ion/off=1.0mA		0			1	V
Logic High	Von/off at Ion/off=0.0 µA	2				15	V
ON/OFF Current	Ion/off at Von/off=0.0V					1	mA
Leakage Current	Logic High, Von/off=15V					50	uA
Output Voltage Trim Range (not available on Exxx code)	Across Pins 9 & 5, Pout <= max rated power		-20			+10	%
Output Voltage Remote Sense Range (not available on Exxx)	Pout <= max rated power					0.5	V
Output Over-Voltage Protection	Over full temp range; % of nominal Vout		13.5			16.5	V
GENERAL SPECIFICATIONS
MTBF	Io=80% of Io, max; Ta=25°C				2.40		M hours
Weight					45		grams
Over-Temperature Shutdown	Refer to Figure 22 for the measuring point				130		°C

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DS_Q48SP12017_05302008