TI PT5060

For assistance or to order, call
Application Notes
Mechanical Outline
Product Selector Guide
(800) 531-5782
PT5060
Series
+5V to +12V/15V 9W DUAL OUTPUT
INTEGRATED SWITCHING REGULATOR
• Dual Outputs:
+12V @ 0.5A
-12V @ 0.25A
•
•
•
•
Wide Input Voltage Range:
85% Efficiency
Adjustable Output Voltage
Laser-trimmed Output Voltage
The Power Trends’ PT5060 Series
is a dual output Integrated Switching
Pin-Out Information
Pin
Standard Application
V OUT Adjust
11
V IN
3,4,5
PT5060
1
- V2 OUT
8, 9,10
+V1 OUT
2,6,7
C1
100µF
+
COM
COM
C1 = Required 100µF electrolytic
Function
1
-V2out
2
GND
3
Vin
4
Vin
5
Vin
6
GND
7
GND
8
+V1out
9
+V1out
10
+V1out
11
Vout Adjust
12
Do Not Connect
Revised 5/15/98
Regulator (ISR) designed for use in +5 volt
systems that require low power ±12 or ±15 volt
rails. They can be used to power such application circuits as D/A and A/D converters, Op
Amps, and interface logic. Both output voltages
can be easily adjusted with one external resistor.
These ISRs are offered in a low profile 12-pin
SIP package in either vertical or horizontal
through-hole or SMD-configurations.
Please note that this product does not
include short-circuit protection.
Ordering Information
PT Series Suffix (PT1234X)
PT5061¨ = ±12 Volts
PT5062¨ = ±15 Volts
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
Pkg Style 300
Specifications
PT5060 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Conditions
Output Current
Io
Over Vin range
Min
Typ
Max
Units
Vo=+12V
Vo=-12V
0.05
0.05*
—
—
0.50
0.25
A
A
Vo=+15V
Vo=-15V
0.05
0.05*
—
—
0.40
0.20
A
A
Current Limit**
Icl
Vin = +5V
—
1.5 Iomax** —
A
Inrush Current
Input Voltage Range
Iir
ttr
Vin
Vin = +5V @ max Io
On start up
Io = 0.1 to Iomax
—
—
4.75
5.5
2
—
—
—
Vo-1V
A
mSec
V
Output Voltage Tolerance
∆Vo
Over Vin and Io ranges
TA= 0°C to +70°C
—
—
±1.5
±5
±3.0
±10
%Vo
%Vo
Line Regulation
Regline
Over Vin range, Io=0.5A, Vo= +12V
—
±0.5
±1.0
%Vo
Load Regulation
Regload
0.1 < Io < Iomax, Vin = +5V, Vo= +12V
—
±0.5
±1.0
%Vo
Vo Ripple/Noise
Vn
Vin= +5V, Io=Iomax
—
—
±1.5
±2.0
±3
±3
%Vo
%Vo
Transient Response
ttr
Vos
25% load change
Vo over/undershoot
—
—
100
3.0
—
5.0
µSec
%Vo
Efficiency
η
Vin= +5V, Io=0.25A each output
—
85
—
%
Switching Frequency
ƒo
Over Vin and Io ranges
—
650
—
kHz
Absolute Maximum
Operating Temperature Range
Ta
—
0
—
+85
°C
Recommended Operating
Temperature Range
Ta
Free Air Convection (40-60LFM)
Over Vin and Io ranges
0
—
+65***
°C
Storage Temperature
Ts
-40
—
+125
°C
—
500
—
G’s
+Vo
-Vo
+Vo
-Vo
Mechanical Shock
Per Mil-STD-883D, Method 2002.3,
1 msec, Half Sine, mounted to a fixture
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2
20-2000 Hz, Soldered in a PC board
Weight
—
15
—
G’s
—
6.5
—
grams
* Do not operate below minimum load.
** Boost topology ISRs are not short circuit protected.
*** See SOA Curves.
46
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
N
A
C
CHARACTERISTIC
(800) 531-5782
PT5060
Series
DATA
Efficiency vs Output Current
(See Note 1)
Efficiency vs Output Current
100
100
90
90
Vin
80
Vin
11.0V
70
8.0V
7.0V
60
5.0V
-12V load=0.2Adc
+12Vout 0-0.5Adc
Efficiency - %
Efficiency - %
80
4.75V
50
14.0V
12.0V
10.0V
7.0V
5.0V
4.75V
70
60
-15V load=0.2Adc
+15Vout 0-0.4Adc
50
40
40
0
0.1
0.2
0.3
0.4
0.5
0
0.1
Ripple Voltage vs Output Current
0.3
0.4
Ripple Voltage vs Output Current
300
100
-15V load=0.2Adc
+15Vout 0-0.4Adc
-12V load=0.2Adc
+12Vout 0-0.5Adc
250
80
Vin
4.75V
60
5.0V
7.0V
8.0V
40
11.0V
Ripple-(mV)
Ripple-(mV)
0.2
Iout-(Amps)
Iout-(Amps)
Vin
200
4.75V
5.0V
7.0V
10.0V
12.0V
14.0V
150
100
20
50
0
0
0
0.1
0.2
0.3
0.4
0.5
0
0.1
Iout-(Amps)
0.2
0.3
0.4
Iout-(Amps)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
2
2
-15V load=0.2Adc
+15Vout 0-0.4Adc
-12V load=0.2Adc
+12Vout 0-0.5Adc
1.6
1.6
Vin
Vin
1.2
5.0V
7.0V
8.0V
0.8
11.0V
PD-(Watts)
PD-(Watts)
4.75V
0.4
4.75V
5.0V
7.0V
10.0V
12.0V
14.0V
1.2
0.8
0.4
0
0
0
0.1
0.2
0.3
0.4
0.5
0
0.1
Iout-(Amps)
80
80
70
Airflow
60
100 LFM
60 LFM
0 LFM
50
40
30
20
0.1
0.2
0.3
0.4
Safe Operating Area Curve (Vin = 5.0V; lout2 = 0.25A)
90
0.3
0.4
Maximum Positive Output Current (A)
0.5
Ambient Temperature (°C)
Ambient Temperature (°C)
Safe Operating Area Curve (Vin = 5.0V; lout2 = 0.25A)
90
0.0
0.2
Iout-(Amps)
70
Airflow
60
100 LFM
60 LFM
50
0 LFM
40
30
20
0.0
0.1
0.2
0.3
0.4
Maximum Positive Output Current (A)
Note 1: All data listed in the above graphs 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
47
DATA SHEETS
PT5062 +/- 15V
(See Note 1)
5V5V
to Bus
3.x Converters
Products
PT5061 +/- 12VDC
For assistance or to order, call
(800) 531-5782
For assistance or to order, call
Application
Notes
PT5060 Series
More Application Notes
Adjusting the Output Voltage of the
PT5060 Dual Output Boost Converter Series
The values of (R1) [adjust down], and R2 [adjust up], can
also be calculated using the following formulae.
The dual output voltage of the Power Trends PT5060 Series
ISRs can be adjusted higher or lower than the factory trimmed
pre-set voltage with the addition of a single external resistor.
Table 1 accordingly gives the applicable adjustment range for
each model in the series as Va (min) and Va (max).
Adjust Up:
An increase in the output voltage is obtained by
adding a resistor R2, between pin 11 (Vo adjust) and pins 2, 6, or
7 (GND).
Adjust Down: Add a resistor (R1), between pin 11 (Vo adjust)
and pins 8, 9 or 10 (V1out).
Refer to Figure 1 and Table 2 for both the placement and value
of the required resistor, either (R1) or R2 as appropriate.
Notes:
1. Both the positive and negative voltage outputs from the ISR
are adjusted simultaneously.
2. Use only a single 1% resistor in either the (R1) or R2 location. Place the resistor as close to the ISR as possible.
3. Never connect capacitors from Vo adjust to either GND or
Vo . Any capacitance added to the Vo adjust pin will affect
the stability of the ISR.
4. An increase in the output voltage must be accompanied by a
corresponding reduction in the specified maximum current
at each output. For V1out and –V2out, the revised maximum
output current must be reduced to the equivalent of 6Watts
and 3Watts respectively. i.e.
6
I1out (max) =
Adc
Va
and
I2out(max)
=
3
Adc,
Va
where Va is the adjusted output voltage.
5. Adjustments to the output voltage will also limit the maximum input voltage that can be applied to the ISR. The
maximum input voltage that may be applied is limited to
(Vout – 1)Vdc or 14Vdc, whichever is less.
Figure 1
Vin
3,4,5
-V2 out
Vin
PT5060
GND
2,6,7
V o(adj)
+ V 1 out
1
-V2 out
8,9,10
+V1 out
11
(R1)
Adj Down
C out
100 µF
+
R2
Adjust Up
COM
COM
(R1)
=
3.65 (Va – 2.5 )
- 0.1
(Vo – Va)
kΩ
R2
=
9.125
Va - Vo
kΩ
Where:
Vo = Original output voltage
Va = Adjusted output voltage
- 0.1
Table 1
PT5060 ADJUSTMENT AND FORMULA PARAMETERS
Series Pt #
PT5061
Vo (nom)
±12.0V
PT5062
±15.0V
Va (min)
± 7.5V
± 7.5V
Va (max)
±14.0V
±20.0V
Table 2
PT5060 ADJUSTMENT RESISTOR VALUES
Series Pt #
Current
Vo(nom)
Va(req’d)
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
15.0
15.5
16.0
16.5
17.0
17.5
18.0
18.5
19.0
19.5
20.0
R1 = (Red)
PT5061
0.5/0.25Adc
±12.0Vdc
PT5062
0.4/0.2Adc
±15.0Vdc
(4.0)kΩ
(4.9)kΩ
(6.2)kΩ
(7.8)kΩ
(10.1)kΩ
(13.6)kΩ
(19.4)kΩ
(30.9)kΩ
(65.6)kΩ
(2.3)kΩ
(2.8)kΩ
(3.3)kΩ
(3.9)kΩ
(4.6)kΩ
(5.4)kΩ
(6.4)kΩ
(7.7)kΩ
(9.3)kΩ
(11.5)kΩ
(14.5)kΩ
(19.1)kΩ
(26.7)kΩ
(41.9)kΩ
(87.5)kΩ
18.2kΩ
9.0kΩ
6.0kΩ
4.5kΩ
18.2kΩ
9.0kΩ
6.0kΩ
4.5kΩ
3.6kΩ
2.9kΩ
2.5kΩ
2.2kΩ
1.9kΩ
1.7kΩ
R2 = Black
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
3
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