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Details, datasheet, quote on part number:PT8NR100
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Datasheet text preview:
For assistance or to order, call
(800) 531-5782
1 AMP PLUS TO MINUS VOLTAGE INTEGRATED SWITCHING REGULATOR
PT78NR100 S e r i e s
· · · · · · Negative output from positive input Wide Input Range Self-Contained Inductor Short Circuit Protection Over-Temperature Protection Fast Transient Response
Application Notes Mechanical Outline Product Selector Guide Revised 5/15/98
The PT78NR100 Series creates a negative output voltage from a positive input voltage greater than 7V. These easy-to-use, 3-terminal, Integrated Switching Regulators (ISRs) have maximum output power of 5 watts and a negative output voltage that is laser trimmed. They also have excellent line and load regulation.
Pin-Out Information
Pin
1
Ordering Information
Function
+ V in -Vout GND
PT78NR1 XX
Output Voltage 03 = -3.0 Volts 05 = -5.0 Volts 52 = -5.2 Volts 07 = -7.0 Volts 08 = -8.0 Volts 09 = -9.0 Volts 12 = -12.0 Volts 15 = -15.0 Volts
Y
Package Suffix V = Vertical Mount S = Surface Mount H = Horizontal Mount
Standard Application
Vin +
1
2 3
2
PT78NR100
3
-Vout
C1 COM
C2
+ COM
C1 = Required 100µF electrolytic C2 = Required 100µF electrolytic
Specifications
Characteristics (Ta= 25°C unless noted) Output Current Symbols Io Conditions
Pkg Style 500
PT78NR100 SERIES
Min Vo=-5V Vo=-7, -8, -9V Vo=-12V Vo=-15V 0.05* 0.05* 0.05* 0.05* -- -- -- Vo=-5V Vo=-7, -8, -9V Vo=-12V Vo=-15V 7 7 7 7 -- -- -- -- -- -- -- 600 -40 -40 -- -40 -- -- -- Typ -- -- -- -- 4×Imax 4 0.5 -- -- -- -- ±1.0 ±0.5 ±0.5 ±2 100 5.0 75 650 -- -- 45 -- 500 5 6.5 Max 1.00 0.55 0.40 0.30 -- -- -- 25 21 18 15 ±3.0 ±1.0 ±1.0 -- 250 -- -- 700 +85 +60** -- +125 -- -- Units A A A A Apk A mSec V V V V %Vo %Vo %Vo %Vo µSec %Vo % kHz °C °C °C/W °C G's G's Grams Over Vin range
Short Circuit Current Inrush Current Input Voltage Range
Is c I ir t ir V in
Vin=10V Vin=10V On start-up 0.1 Io Imax
Output Voltage Tolerance Line Regulation Load Regulation Vo Ripple/Noise Transient Response (with 100µF output cap) Efficiency Switching Frequency Absolute Maximum Operating Temperaturte Range Recommended Operating Temperature Range Thermal Resistance Storage Temperature Mechanical Shock Mechanical Vibration Weight
Vo Regline Reg l o a d Vn ttr o Ta Ta
Over Vin range Ta=-20°C to +70°C Over Vin range 0.1 Io Imax Vin=10V, Io=Imax 50% load change Vo over/undershoot Vin=10V, Io=0.5×Imax, Vo = -5V Over Vin and Io ranges Free Air Convection, (40-60LFM) Over Vin and Io Ranges Free Air Convection, (40-60LFM) Over Vin and Io Ranges Free Air Convection, (40-60LFM) -- Per Mil-STD-883D, Method 2002.3 Per Mil-STD-883D, Method 2007.2, 20-2000 Hz, soldered in a PC board --
j a
Ts -- -- --
*ISR will operate down to no load with reduced specifications. **See Thermal Derating chart. Note: The PT78NR100 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
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Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
For assistance or to order, call
(800) 531-5782
PT78NR100 S e r i e s
CHARACTERISTIC DATA
Wide Input Range Products
PT78NR105 -5.0 VDC
(See Note 1)
PT78NR109 -9.0 VDC
(See Note 1)
PT78NR112 -12.0 VDC
DATA SHEETS
(See Note 1)
Efficiency vs Output Current
100
100
Efficiency vs Output Current
100
Efficiency vs Output Current
90
90
90
Efficiency - %
Efficiency - %
80
Vin 7.0V 12.0V 15.0V 20.0V 25.0V
Efficiency - %
Vin 80 7.0V 9.0V 12.0V 15.0V 20.0V
80
Vin 7.0V
70
70
12.0V 15.0V 18.0V 21.0V
70
60
60
60
50
50
50
40 0 0. 2 0. 4 0. 6 0. 8 1
40 0 0.1 0.2 0.3 0.4 0.5
40 0 0. 1 0. 2 0. 3 0. 4
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Ripple vs Output Current
200
20 0
Ripple vs Output Current
250
Ripple vs Output Current
160 Vin
16 0 Vin
200
Ripple-(mV)
120
18 .0V 15 .0V 80 12 .0V 7 .0V
Ripple-(mV)
80
25.0V 20.0V 15.0V 12.0V 7 .0V
Ripple-(mV)
12 0
21 .0V
150 Vin 100 20.0V 15.0V 12.0V 9 .0V 7 .0V
40
40
50
0 0 0. 2 0. 4 0. 6 0. 8 1
0 0 0. 1 0. 2 0. 3 0. 4 0. 5
0 0 0. 1 0. 2 0. 3 0. 4
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Thermal Derating (Ta)
1 0. 9 0. 8
(See Note 2)
60°C 70°C
0. 5 0. 6
Thermal Derating (Ta)
(See Note 2)
0. 4
Thermal Derating (Ta)
70°C
(See Note 2)
70°C
0 .3 5 0. 3
Iout-(Amps)
Iout-(Amps)
85°C
0. 6 0. 5 0. 4 0. 3 0. 2
0. 4
Iout-(Amps)
0. 7
0 .2 5 0. 2 0 .1 5 0. 1
85°C
0. 3
85°C
0. 2
0. 1 0. 1 0 7 10 13 16 19 22 25 0 7 11 15 19 0 .0 5 0 7 10 13 16 19
Vin-(Volts)
Vin-(Volts)
V i n - ( Vo l t s )
Power Dissipation vs Output Current
2 1. 8 1. 6
Power Dissipation vs Output Current
1.6 1.4 1.2 1.6 1.4 1.2
Power Dissipation vs Output Current
1. 4
Vin
Vin
PD-(Watts)
PD-(Watts)
25 .0V 1. 2 1 0. 8 0. 6 20 .0V 15 .0V 12 .0V 7 .0V
1 0.8 0.6 0.4
PD-(Watts)
V Vin 1 20.0V 0.8 0.6 0.4 0.2 0 0 0.1 0.2 0.3 0.4 15.0V 12.0V 9.0V 7.0V
21.0V 18.0V 15.0V 12.0V 7.0V
0. 4
0.2
0. 2 0 0 0. 2 0. 4 0. 6 0. 8 1
0 0 0.1 0.2 0.3 0.4 0.5
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Note 1: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR. Note 2: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.)
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
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