Texas Instruments PT4101A, PT4101C, PT4102A, PT4102C, PT4103A Datasheet

For assistance or to order, call	[phone]					Revised 3/1/99
P T 4 1 0 0	S e r i e s			4 8 V
					48V 15 WATT ISOLATED	Application Notes
						Mechanical Outline
					DC-DC CONVERTER
						Product Selector Guide
	• -40°C to +85°C Operating				Power Trends’ PT4100 series of Isolated
					48V DC-DC Converters advance the state-of-
		Temperature Range			the-art for board-mounted converters by
	•	1500 VDC Isolation			employing high switching frequencies greater
	• Power Density 15 Watts/in3				than 650 KHz and planar magnetics and sur-
	• Wide Input Voltage Range				face-mount construction. They feature the
		36V to 75V			industry’s smallest footprint, a power density of
	•	82% Efficiency			15 Watts/in3, and operate at 82% efficiency.
	•	Small Footprint			They are designed for Telecom, Industrial,
	•	Fast Transient Response			Computer, Medical, and other distributed
	•	UL Approved			power applications requiring input-to-output
					isolation and an industrial temperature range.

Specifications

Characteristics					PT4100 SERIES
(Ta=25°C unless noted)	Symbols	Conditions			Min	Typ	Max		Units
Output Current	Io	Over Vin range	Vo = 3.3V		0	—	4.0		A
			Vo = 5V		0	—	3.0		A
			Vo = 12V		0	—	1.25		A
			Vo = 15V		0	—	1.0		A
Current Limit	Icl	Vin = 36V	Vo = 5V		—	4.00	—		A
			Vo = 12V		—	1.75	—		A
			Vo = 15V		—	1.4	—		A
On/Off Standby Current	Iin standby	Vin = 48V, Pin 1 = -Vin			—	7	10		mA
Short Circuit Current	Isc	Vin = 48V	Vo = 5V		—	5.5	—		A
			Vo = 12V		—	3.5	—		A
			Vo = 15V		—	2.0	—		A
Inrush Current	Iir	Vin = 48V @ max Io			—	0.6	1.0		A
	tir	On start-up			—	1.0	5.0		mSec
Input Voltage Range	Vin	Io = 0.1 to max Io			36.0	48.0	75.0		V
Output Voltage Tolerance	Vo	Over Vin Range			—	±1.0	±2.0		%Vo
		TA= -40°C to +85°C
Ripple Rejection	RR	Over Vin range @ 120 Hz			—	60	—		dB
Line Regulation	Regline	Over Vin range @ max Io			—	±0.2	±1.0		%Vo
Load Regulation	Regload	10% to 100% of Io max			—	±0.4	±1.0		%Vo
Vo Ripple/Noise	Vn	Vin=48V, Io=3.0A,	Vo=5V		—	75	100		mVpp
		Vin=48V, Io=1.25A, Vo=12V			—	120	150		mVpp
		Vin=48V, Io=1.0A,	Vo=15V		—	100	200		mVpp
Transient Response	ttr	50% load change			—	100	200		µSec
		Vo over/undershoot			—	3.0	5.0		%Vo
Efficiency	η	Vin=48V, Io=3.0A, Vo=5V			—	80	—	%
		Vin=48V, Io=1.25A, Vo=12V			—	81	—	%
		Vin=48V, Io=1A, Vo=15V			—	82	—	%
Switching Frequency	ƒo	Over Vin and Io,	Vo=5V		800	850	900		kHz
			Vo=12V/15V		600	650	700		kHz
Recommended Operating	Ta	Vin = 48V @ max Io			-40	—	+85*		°C
Temperature Range		Free air convection, (40-60LFM)
					0	—	+70		°C
		200 LFM	PT4110
Thermal Resistance	θja	Free Air Convection, (40-60LFM)			—	14	—		°C/W
Case Temperature	Tc	@ Thermal shutdown			—	—	100		°C
Storage Temperature	Ts	—			-40	—	110		°C
Mechanical Shock	—	Per Mil-STD-202F, Method 213B,			—	50	—		G’s
		6mS, Half-sine, mounted to a PCB
Mechanical Vibration	—	Per Mil-STD-202F, Method 204D,			—	10	—		G’s
		10-500Hz, Soldered in a PCB
Weight	—	—			—	28	—		grams
Isolation	—	—			1500	—	—		V
Capacitance	—	—			—	1100	—		pF
Resistance	—	—			10	—	—		MΩ
Flammability	—	Materials meet UL 94V-0
Remote On/Off	On	Open or 2.5 to 7.0 VDC above -Vin
	Off	Short or 0 to 0.8 VDC above -Vin

* See thermal derating curves

Standard Application

On/Off

		1
+Vin	3		5	+Vout
-Vin	2	PT4100	4	-Vout

Pin-Out Information

Pin Function

1Remote ON/OFF

2-Vin

3+Vin

4-Vout

5+Vout

6Do not connect

Ordering Information

Through-Hole

PT4101A = 5 Volts

PT4102A = 12 Volts

PT4103A = 15 Volts

PT4110A = 3.3 Volts

PT4117A = 5.2 Volts

Surface Mount

PT4101C = 5 Volts

PT4102C = 12 Volts PT4103C = 15 Volts PT4110C = 3.3 Volts PT4117C = 5.2 Volts

(For dimensions and PC board layout, see Package Style 700.)

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