Delta Electronics S24SA manual Technical Specifications, Parameter

TECHNICAL SPECIFICATIONS

(TA=25°C, airflow rate=200 LFM, Vin=24Vdc, nominal Vout unless otherwise noted.)

PARAMETER	NOTES and CONDITIONS		S24SA1R812NRFA
		Min.		Typ.	Max.		Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous		-0.3			50		Vdc
Operating Temperature	Please refer to Fig. 18 For measuring point	-40			110		°C
Storage Temperature		-55			125		°C
Input/Output Isolation Voltage					2250		Vdc
INPUT CHARACTERISTICS
Operating Input Voltage		18		24	36		V
Input Under-Voltage Lockout
Turn-On Voltage Threshold				17	18		V
Turn-Off Voltage Threshold		13		15			V
Lockout Hysteresis Voltage		1		2	3		V
Maximum Input Current	100% Load, 18Vin				2.2		A
No-Load Input Current				50			mA
Off Converter Input Current				7			mA
Inrush Current(I2t)				0.01			A2s
Input Reflected-Ripple Current	P-P thru 12µH inductor, 5Hz to 20MHz			5			mA
Input Voltage Ripple Rejection	120 Hz			50			dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point	Vin=24V, Io=50%Io.max, Ta=25℃	1.77		1.80	1.83		V
Output Voltage Regulation
Over Load	Io=Io,min to Io,max			±2	±10		mV
Over Line	Vin=18V to36V			±2	±5		mV
Over Temperature	Ta=-40℃to 85℃			100	300		ppm/℃
Total Output Voltage Range	Over sample load, line and temperature	1.73			1.87		V
Output Voltage Ripple and Noise	5Hz to 20MHz bandwidth
Peak-to-Peak	Full Load, 1µF ceramic, 10µF tantalum			20	50		mV
RMS	Full Load, 1µF ceramic, 10µF tantalum			5	15		mV
Operating Output Current Range		0			12		A
Output DC Current-Limit Inception	Output Voltage 10% Low	13.2			18		A
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient	24V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current	50% Io,max to 75% Io,max			30	75		mV
Negative Step Change in Output Current	75% Io,max to 50% Io.max			30	75		mV
Settling Time to 1% of Final value				200			µs
Turn-On Transient
Start-Up Time, From On/Off Control					12		ms
Start-Up Time, From Input					12		ms
Maximum Output Capacitance	Full load; 5% overshoot of Vout at startup				2200		µF
EFFICIENCY
100% Load				87.5			%
ISOLATION CHARACTERISTICS
Isolation Voltage					2250		V
Isolation Resistance		10					MΩ
Isolation Capacitance				1500			pF
FEATURE CHARACTERISTICS
Switching Frequency				330			kHz
ON/OFF Control, (Logic Low-Module ON)
Logic Low	Von/off at Ion/off=1.0mA	0			0.8		V
Logic High	Von/off at Ion/off=0.0 µA				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	Across Trim Pin & +Vo or –Vo, Pout≦max rated	-10			+10		%
Output Over-Voltage Protection(Hiccup)	Over full temp range; % of nominal Vout	115			160	%
GENERAL SPECIFICATIONS
Calculated MTBF	Io=80% of Io, max; Ta=25°C, Airflow=200LFM			5.7			M hours
Weight				18			grams
Over-Temperature Shutdown	Please refer to Fig.18 For measuring point			115			°C

2

DS_S24SA1R812_05092006