Delta Electronics Series E24SR Technical Specifications, Parameter, NOTES and CONDITIONS, Units

TECHNICAL SPECIFICATIONS

(TA=25°C, airflow rate=300 LFM, Vin=24Vdc, nominal Vout unless otherwise noted.)

PARAMETER	NOTES and CONDITIONS		E24SR05012 (Standard)
			Min.	Typ.	Max.	Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous					36	Vdc
Transient (100ms)	100ms				50	Vdc
Operating Temperature	Refer to figure 21 for measuring point		-40		118	°C
Storage Temperature			-55		125	°C
Input/Output Isolation Voltage					2250	Vdc
INPUT CHARACTERISTICS
Operating Input Voltage			18		36	Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold			16	17	17.8	Vdc
Turn-Off Voltage Threshold			15	16	17	Vdc
Lockout Hysteresis Voltage			0.7	1	1.5	Vdc
Maximum Input Current	100% Load, 18Vin				3.9	A
No-Load Input Current				80	150	mA
Off Converter Input Current				3	10	mA
Inrush Current (I2t)					0.1	A2s
Input Reflected-Ripple Current	P-P thru 12µH inductor, 5Hz to 20MHz			15		mA
Input Voltage Ripple Rejection	120 Hz			55		dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point	Vin=24V, Io=Io.max, Tc=25°C		4.925		5.075	Vdc
Output Voltage Regulation
Over Load	Io=Io, min to Io, max			±3	±10	mV
Over Line	Vin=18V to36V			±3	±10	mV
Over Temperature	Tc=-40°C to100°C			±50		mV
Total Output Voltage Range	Over sample load, line and temperature		4.875	5	5.125	V
Output Voltage Ripple and Noise	5Hz to 20MHz bandwidth
Peak-to-Peak	Full Load, 1µF ceramic, 10µF tantalum			50	100	mV
RMS	Full Load, 1µF ceramic, 10µF tantalum			15	30	mV
Operating Output Current Range			0		12	A
Output Over Current Protection	Output Voltage 10% Low		110		140	%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient	10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current	50% Io.max to 75% Io.max			150	250	mV
Negative Step Change in Output Current	75% Io.max to 50% Io.max			150	250	mV
Settling Time (within 1% Vout nominal)				150		us
Turn-On Transient
Start-Up Time, From On/Off Control				5		ms
Start-Up Time, From Input				5		ms
Back bias start-up	≤ 90% of nominal output voltage
Back drive current limit while pin on-off is enabled	Io=0A				0.1	A
Back drive current limit while pin on-off is disabled	Io=0A				50	mA
Maximum Output Capacitance	Full load; CR mode;5% overshoot of Vout at				5000	µF
EFFICIENCY
100% Load				90.5		%
60% Load				90.5		%
ISOLATION CHARACTERISTICS
Input to Output					2250	Vdc
Isolation Resistance			10			MΩ
Isolation Capacitance				1500		pF
FEATURE CHARACTERISTICS
Switching Frequency				350		kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)			-0.7		0.5	V
Logic High (Module Off)			3		18	V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)			-0.7		0.5	V
Logic High (Module On)			3		18	V
On/off pin open circuit voltage					9.6	V
On/off pin pull down resistance			12			Kohm
Output Voltage Trim Range	Pout ≦ max rated power	-10			+10	%
Output Voltage Remote Sense Range	Pout ≦ max rated power				+10	%
Output Over-Voltage Protection	Over full temp range;	5.75			7	V
GENERAL SPECIFICATIONS
MTBF	Io=80% of Io, max; Ta=25°C, 300LFM airflow			3.86		M hours
Weight				22.0		grams
Over-Temperature Shutdown	Refer to figure 21 for measuring point			123		°C

DS_E24SR05012_01032008 2