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Details, datasheet, quote on part number:PT6508
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| Part: | PT6508 |
| Category: | Discrete => Diodes & Rectifiers => Protection |
| Description: | 8 Amp Adjustable Isr With Short-circuit Protection |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download PT6508 datasheet File size : 298 kB |
| Request For quote: | Find where to buy PT6508
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Datasheet text preview:
For assistance or to order, call
(800) 531-5782
Revised 7/15/98
PT6500
Series
8 AMP ADJUSTABLE ISR WITH SHORT-CIRCUIT PROTECTION
· · · · · · · 8A Single Device Power Up to 90% efficiency (PT6501) Small SIP Footprint Standby Function Internal Short Circuit Protection Over-Temperature Protection Adjustable Output Voltage
Application Notes Mechanical Outline Product Selector Guide
The PT6500 series is Power Trends' new high performance +3.1 to 6V input, 8 Amp, 14-Pin SIP (Single Inline-Package) Integrated Switching Regulator (ISR). This high-perfor-
mance ISR allows easy integration of high-speed, low-voltage Pentium processors and their support logic into existing 3.3V or 5V systems without redesigning the central power supply. The high-performance PT6502 solves the problem of providing the low terminating voltages required by BTL/ Futurebus+, CTT, HP, and GTL Buses from existing 3.3V or 5V power rails without redesigning the central power supply.
Pin-Out Information
Pin Function
Remote Sense Do not connect STBY*-Standby
Ordering Information
PT6501¨ PT6502¨ PT6503¨ PT6504¨ PT6505¨ PT6506¨ PT6507¨ PT6508¨ = 3.3 Volts = 1.5 Volts = 2.5 Volts = 3.6 Volts = 1.2 Volts = 1.8 Volts = 1.3 Volts = 1.7 Volts
PT Series Suffix (PT1234X)
Case/Pin Configuration Heat Tab Configuration None Side
Standard Application
14 VIN (+) 4,5,6 11,12,13 Remote Sense VO Adjust VOUT (+)
PT6501,2,3
C1 Q1 INH 3
1 C2
7,8,9,10
COM
COM
C1 = Required 330µF electrolytic C2 = Required 330µF electrolytic
1 2 3 4 5 6 7 8 9 10 11 12 13 14
V in V in V in GND GND GND GND Vo u t Vo u t Vo u t Vout Adjust
Vertical Through-Hole Horizontal Through-Hole Horizontal Surface Mount
N A C
R G B
3.3V Input Bus Capable
Pkg Style 400
Specifications
Characteristics (Ta=25°C unless noted) Output Current Current Limit Short Circuit Current Input Voltage Range
PT6500 SERIES
Symbols Io Icl Isc Vin Vo Vo Conditions Over Vin range Vin=+5V Vin=+5V 0.1 Io 8.0A Vin = +5V, Io = 8.0A Ta = 0 to +70°C Vnom = 3.3V Vnom = 1.5V Vnom = 2.5V Pin 14 to Vo or GND Vadj = (PT6501) Vadj = (PT6502) Vadj = (PT6503) Vadj = (PT6504) Vo=2.5V and 3.3V Vo=1.5V, 1.2V, 1.3V Vo=3.6V Min 0.1* -- -- 4.5 3.1 4.8 Vo-0.1 2.25 1.27 1.80 2.50 -- -- -- -- -- -- -- (PT6501/6504) (PT6502) (PT6503) (PT6501/6504) (PT6502) (PT6503) -- -- -- -- -- -- Typ -- 13.0 15.0 -- -- -- -- -- -- -- ±7 ±3 ±7 ±17 ±12 ±13 50 100 150 90 76 85 83 68 76 Max 8.0 20.0 -- 6 6 6 Vo+0.1 4.20 2.65 3.50 4.30 ±17 ±8 ±13 ±33 ±23 ±25 -- -- -- -- -- -- -- -- -- Units A A Apk V V V V Vinmin=3.1V or Vo+1.2V (whichever is greater) mV
Output Voltage Tolerance Output Adjust Range
Line Regulation
Regline Regload Vn ttr Vos
4.5V Vin 6.0V, Io = 8.0A (PT6501/4) (PT6502) 3.1V Vin 6.0V, Io = 8.0A 4.5V Vin 6.0V, Io = 8.0A (PT6503) 0.1 Io 8.0A, Vin = +5V Vin = +5V, Io = 8.0 Amp Io step from 4A to 8.0A Vo over/undershoot Vin = +5V, Io = 3.0A Vin = +5V, Io = 8.0A (PT6501/4) (PT6502) (PT6503)
Load Regulation
mV mVpp µsec mV % % % % % %
Vo Ripple/Noise Transient Response with Co = 330µF Efficiency
* ISR will operate down to no load with reduced specifications.
Note: The PT6500 Series requires a 330µF electrolytic or tantalum input and output capacitor for proper operation in all applications. See PT6000/7000 Series Capacitor application note.
2
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
PT6500
Specifications (continued)
Characteristics (Ta=25°C unless noted) Switching Frequency Absolute Maximum Operating Temperature Range Recommended Operating Temperature Range Thermal Resistance Storage Temperature Mechanical Shock Mechanical Vibration Weight
** See Thermal Derating charts. Note: The PT6500 Series requires a 330µF electrolytic or tantalum input and output capacitor for proper operation in all applications.
Series
Typ 600 -- -- 15 -- 500 7.5 23 Max 725 +85 +70** -- +125 -- -- -- Units KHz °C °C °C/W °C G's G's grams
PT65000 SERIES
Symbols o Ta Ta Vin = +5V, Io = 6.0A Free Air Convection (40-60LFM) Free Air Convection (40-60LFM) -- Per Mil-STD-883D, Method 2002.3, 1msec, half sine, fixture mounted Conditions Over Vin and Io ranges Min 475 0 0 -- -40 -- -- --
53.3V3.x Converters V to Bus Products
DATA SHEETS
ja
Ts
CHARACTERISTIC PT6501, 3.3 VDC, Vin=5.0V
(See Note 1)
DATA PT6503, 2.5 VDC, Vin=5.0V
(See Note 1)
PT6502, 1.5 VDC, Vin=5.0V
(See Note 1)
Efficiency vs Output Current
100 90
Efficiency vs Output Current
100 90
Efficiency-% Efficiency-%
Efficiency vs Output Current
100 90 Vin 3.1V 3.5V 4.0V 4.5V 5.0V 6.0V Vin 80 70 60 50 40 4.0V 4.5V 5.0V 5.5V 6.0V
Efficiency-%
80 70 60 50 40 0 1 2 3 4 5 Iout-(Amps) 6 7 8
Vin 4.5V 5.0V 5.5V 6.0V
80 70 60 50 40 0 1 2 3 4 5 6 7 8
0
1
2
3
4
5
6
7
8
Iout-(Amps)
Iout-(Amps)
Ripple vs Output Current
35 30 25
Ripple-(mV)
Ripple vs Output Current
50 Vin 6.0V 5.5V 5.0V 4.5V
Ripple-(mV)
Ripple vs Output Current
60 Vin 3.1V 3.5V 4.0V 4.5V 5.0V 6.0V
Ripple-(mV)
40 30 20 10 0
50 40 30 20 10 0
Vin 6.0V 5.5V 5.0V 4.5V 4.0V
20 15 10 5 0 0 1 2 3 4 5 6 7 8
0 0 1 2 3 4 5 6 7 8 Iout-(Amps)
1
2
3
4
5
6
7
8
Iout-(Amps)
Iout-(Amps)
Power Dissipation vs Output Current
7 6 5 Pd-(Watts) 4 3 2 1 0 0 1 2 3 4 5 6 7 8 Iout-(Amps) Vin Pd-(Watts) 6.0V 5.5V 5.0V 4.5V
Power Dissipation vs Output Current
6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 Iout-(Amps) Vin 6.0V 5.0V 4.5V 4.0V 3.5V 3.1V Pd-(Watts) 7 6 5 4 3 2 1 0 0
Power Dissipation vs Output Current
Vin 6.0V 5.5V 5.0V 4.5V 4.0V
1
2
3
4
5
6
7
8
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.
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
3
For assistance or to order, call
(800) 531-5782
PT6500 THERMAL DATA
THERMAL DERATING CURVES Air Flow (LFM) 60 PT6501 (See Note 1) No Heat Tab
Thermal Derating (Ta)
8 7 6 70°C 85°C 50°C 60°C
200
300
(See Note 2)
25°C 35°C
Thermal Derating (Ta)
8 7 6 70°C
(See Note 2)
35°C 50°C
Thermal Derating (Ta)
8 7 6 85°C 70°C
(See Note 2)
60°C
Iout-(Amps)
Iout-(Amps)
5 4 3 2 1 0 4.5 4.75 5
5 4 3 2 1 0 4.5 4.75 5 5.25 Vin-(Volts) 5.5 5.75 6
Iout-(Amps)
85°C
5 4 3 2 1 0 4.5 4.75 5 5.25 Vin-(Volts) 5.5 5.75 6
5.25 Vin-(Volts)
5.5
5.75
6
Heat Tab
Thermal Derating (Ta)
8 7 6 70°C 85°C
(See Note 2)
50°C 60°C
Thermal Derating (Ta)
8 7 6
85°C
(See Note 2)
70°C
Thermal Derating (Ta)
8 7 6 5 4 3 2 1 0 85°C
(See Note 2)
70°C
Iout-(Amps)
4 3 2 1 0 4.5 4.75 5 5.25 Vin-(Volts) 5.5 5.75 6
Iout-(Amps)
5
5 4 3 2 1 0 4.5 4.75 5 5.25 Vin-(Volts) 5.5 5.75 6
Iout-(Amps)
4.5
4.75
5
5.25 5.5 Vin-(Volts)
5.75
6
PT6502 (See Note 1) No Heat Tab
Thermal Derating (Ta)
8 7 6 60°C 70°C 85°C
(See Note 2)
50°C
Thermal Derating (Ta)
8 7 70°C 6 5 4 3 2 1 0
(See Note 2)
50°C 60°C
Thermal Derating (Ta)
8 7 85°C
(See Note 2)
70°C
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
85°C
6 5 4 3 2 1 0
5 4 3 2 1 0 3 3.5 4 4.5 Vin-(Volts) 5 5.5 6
3
3.5
4
4.5 Vin-(Volts)
5
5.5
6
3
3.5
4
4.5 Vin-(Volts)
5
5.5
6
Heat Tab
Thermal Derating (Ta)
8 7 70°C 85°C
(See Note 2)
50°C 60°C
Thermal Derating (Ta)
8 7 85°C
(See Note 2)
70°C
Thermal Derating (Ta)
8 7 6 5 4 3 2 1 0
(See Note 2)
70°C 85°C
Iout-(Amps)
4 3 2 1 0 3 3.5 4 4.5 Vin-(Volts) 5 5.5 6
4 3 2 1 0 3 3.5 4 4.5 Vin-(Volts) 5 5.5 6
Iout-(Amps)
5
Iout-(Amps)
6
6 5
3
3.5
4
4.5 Vin-(Volts)
5
5.5
6
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 different air flow rates as indicated on each graph, with or without the heat tab, soldered in a printed circuit board. (See Thermal Application Notes.)
4
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
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