PT6623R [TI]
Single Device: 6-A Output;
| 型号： | PT6623R |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Single Device: 6-A Output 开关 |
| 文件： | 总5页 (文件大小：239K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
For assistance or to order, call (800) 531-5782
Revised 2/5/99
P T 6 6 2 0 S e r i e s
Application Notes
Mechanical Outline
Product Selector Guide
6 AMP 12V INPUT
INTEGRATED SWITCHING REGULATOR
• Single Device: 6A Output
Designed for stand-alone operation in
• Input Voltage Range: 9V to 14V
• Adjustable Output Voltage
• 83% Efficiency
• Remote Sense Capability
• Standby Function
applications requiring as much as 6A of
output current, the PT6620 is packaged
in a 14-Pin SIP (Single In-line Package)
and is available in a surface-mount con-
figuration.
• Over-Temperature Protection
Only two external capacitors are
required for proper operation. Please
note that this product does not include
short circuit protection.
The PT6620 series is a new addition
to Power Trends’ line of 12V bus Inte-
grated Switching Regulators (ISRs).
Pin-Out Information Ordering Information PT Series Suffix
(PT1234X)
PT6621¨ = +3.3 Volts
PT6622¨ = +1.5 Volts
PT6623¨ = +2.5 Volts
PT6624¨ = +3.6 Volts
PT6625¨ = +5.0 Volts
PT6626¨ = +9.0 Volts
Pin
1
Function
Remote Sense
Do Not Connect
STBY*- Standby
Vin
Case/Pin
Heat
Heat Spreader
Configuration
Spreader with Side Tabs
Standard Application
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
P
D
E
R
G
B
2
REMOTE SENSE
3
1
VIN
VOUT
4
4,5,6
11,12,13
PT6620
3
5
Vin
7,8,9,10
+
+
LOAD
6
Vin
C1
C2
STBY
COM
Q1
7
GND
COM
8
GND
Pkg Style 400
C1 = Required 330µF electrolytic
C2 = Required 330µF electrolytic
Q1= NFET-or Open Collector Gate
9
GND
Note: Back surface
of product is
conducting metal
10
11
12
13
14
GND
Vout
Vout
Vout
Vout Adjust
Specifications
PT6620 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = 60°C, 200 LFM, pkg P
Ta = 25°C, natural convection
0.1*
0.1*
—
—
6.0**
6.5**
A
A
Input Voltage Range
Vin
0.1A ≤ Io ≤ 6.0A
V
o ≤ +5V
+9
—
—
+14
+14
V
V
+6V≤Vo≤+9V
Vo+3
Output Voltage Tolerance
Ta = 0 to 60°C
∆Vo
Voadj
Vin = +12V, Io = 6.0A
Pin 14 to Vo or ground
Vo-0.1
—
Vo+0.1
V
Output Voltage Adjust Range
Vo = +3.3V
Vo = +1.5V
Vo = +2.5V
Vo = +3.6V
Vo = +5.0V
Vo = +9.0V
2.3
1.4
1.9
2.5
2.9
5.2
—
—
—
—
—
—
4.5
2.7
3.7
4.8
6.5
10.0
V
Line Regulation
Load Regulation
Vo Ripple/Noise
Regline
Regload
Vn
+9V≤Vin≤+14V, Io = 6.0A
Vin = +12V, 0.1≤ Io≤6.0A
Vin = +12V, Io = 6.0A
—
—
±0.5
±0.5
±1.0
±1.0
%Vo
%Vo
Vo < +6V
Vo > +6V
—
—
50
1.0
—
—
mVpp
%Vo
Transient Response
with C2 = 330µF
ttr
Vos
Io step between 3.0A and 6.0A
Vo over/undershoot
—
—
100
150
—
—
µSec
mV
Efficiency
η
Vin = +12V, Io = 3.0A
Vo= +3.3/3.6V
—
—
—
—
—
84
68
76
86
93
—
—
—
—
—
%
%
%
%
%
Vo = +1.5V
Vo = +2.5V
Vo = +5.0V
Vo = +9.0V
Vin = +12V, Io =6.0A
Vo= +3.3/3.6V
Vo = +1.5V
Vo = +2.5V
Vo = +5.0V
Vo = +9.0V
—
—
—
—
—
83
66
75
85
92
—
—
—
—
—
%
%
%
%
%
* ISR will operate down to no load with reduced specifications.
** See SOA curves - Output power is limited to 30W maximum.
Note: The PT6620 Series requires a 330µF(output) and 330µF(input) electrolytic capacitors for proper operation in all applications.
48
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
P T 6 6 2 0 S e r i e s
Specifications (continued)
PT6620 SERIES
Characteristics
(Ta = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Switching Frequency
ƒo
9V ≤ Vin ≤ 14V
0.1A ≤ Io ≤ 6.0A
500
500
650
550
775
600
kHz
kHz
PT6622
Recommended Operating
Temperature Range
Ta
Ta
Free Air Convection (40-60 LFM)
Over Vin and Io ranges with heat tab
-40
—
+65**
°C
Absolute Maximum
-40
—
+85
°C
Operating Temperature Range
Storage Temperature
Mechanical Shock
Ts
—
—
—
-40
—
—
+125
—
°C
Per Mil-STD-883D, Method 2002.3
500
G’s
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
—
7.5
14
—
—
G’s
Weight
—
—
—
grams
** See SOA curves - Output power is limited to 30W maximum.
Note: The PT6620 Series requires a 330µF(output) and 100µF(input) electrolytic capacitors for proper operation in all applications.
C H A R A C T E R I S T I C
D A T A
PT6620 Series @Vin=+12V
Safe Operating Area Curves @Vin=+12V
Efficiency vs Output Current
PT6621P, 3.3V
100
90
80
70
60
50
40
90
80
70
60
50
40
30
20
Recommended Maximum
Operating Temperature
Airflow
PT6621
PT6622
PT6623
PT6625
PT6626
Nat conv
60LFM
120LFM
200LFM
0
1
2
3
4
5
6
6
6
0
1
2
3
4
5
5
5
6
6
6
7
7
7
Output Current (A)
Output Current (A)
Output Ripple vs Output Current
PT6622P, 1.5V
90
80
70
60
50
40
30
20
30
25
20
15
10
5
Recommended Maximum
Operating Temperature
Airflow
Nat conv
60LFM
PT6621
PT6622
PT6623
PT6625
PT6626
120LFM
200LFM
0
0
1
2
3
4
0
1
2
3
4
5
Output Current (A)
Output Current (A)
Power Dissipation vs Output Current
PT6625P, 5.0V
5
4
3
2
1
0
90
80
70
60
50
40
30
20
Recommended Maximum
Operating Temperature
PT6621
PT6622
PT6623
PT6625
PT6626
Airflow
Nat c onv
60LF M
120LF M
200LF M
0
1
2
3
4
0
1
2
3
4
5
Output Current (A)
Output Current (A)
Note: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.
49
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
PT6620 Series
A p p l i c a t i o n
N o t e s
More Application Notes
Figure 1
Adjusting the Output Voltage of the
PT6620 7Amp12V Bus Converter Series
1
The output voltage of the Power Trends PT6650 Series ISRs
may 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 allowable adjustment range for each model
in the series as Va (min) and Va (max).
Vsense
4,5,6
11,12,13
Vin
Vo
Vin
PT6620
Vo
STBY
G N D
Vo(adj)
3
7,8,9,10 14
(R1)
Adj Down
L
O
A
D
+
+
Cin
330
Cout
330
Adjust Up:
An increase in the output voltage is obtained by
µ
F
µF
adding a resistor R2, between pin 14 (Vo adjust) and pins 7-10
(GND).
R2
Adjust Up
Adjust Down: Add a resistor (R1), between pin 14 (Vo adjust)
and pins 11-13 (Vout).
COM
COM
Refer to Figure 1 and Table 2 for both the placement and value
of the required resistor, either (R1) or R2 as appropriate.
The values of (R1) [adjust down], and R2 [adjust up], can
also be calculated using the following formulae.
Notes:
1. Use only a single 1% resistor in either the (R1) or R2 loca-
tion. Place the resistor as close to the ISR as possible.
Ro (Va – 1.25)
(Vo – Va)
(R1)
R2
=
=
– Rs
kΩ
kΩ
2. Never connect capacitors from Vo adjust to either GND,
Vout, or the Remote Sense pin. Any capacitance added to
the Vo adjust pin will affect the stability of the ISR.
3. If the Remote Sense feature is being used, connecting the
resistor (R1) between pin 14 (Vo adjust) and pin 1 (Remote
Sense) can benefit load regulation.
1.25 Ro
Va - Vo
– Rs
4. The minimum input voltage required by the part is Vout + 3,
or 9V, whichever is higher.
Where:
Vo = Original output voltage
Va = Adjusted output voltage
Ro = The resistance value in Table 1
Rs = The series resistance from Table 1
5. The maximum output current must be limited to the equiva-
lent of 30Watts.
i.e.
12
V
a
Iout (max)
=
Adc,
where Va is the adjusted output voltage.
Table 1
PT6620 ADJUSTMENT AND FORMULA PARAMETERS
Series Pt #
PT6622
PT6623
PT6621
PT6624
PT6625
PT6626
V (nom)
1.5V
1.4V
2.7V
4.99
2.49
2.5V
1.9V
3.7V
10.0
3.3V
2.3V
4.5V
12.1
3.6V
2.5V
4.8V
12.1
5.0V
2.9V
6.5V
16.2
9.0V
5.2V
10.0V
12.1
o
V (min)
a
V (max)
a
R (kΩ)
o
R (kΩ)
s
4.99
12.1
12.1
12.1
12.1
3
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
PT6620 Series
A p p l i c a t i o n
N o t e s
Table 2
PT6620 ADJUSTMENT RESISTOR VALUES
Series Pt #
Current
PT6622
7.5Adc
1.5Vdc
PT6623
7.5Adc
2.5Vdc
PT6621
7.5Adc
3.3Vdc
PT6624
7.5Adc
3.6Vdc
PT6625
6.0Adc
5.0Vdc
Series Pt #
Current
PT6625
6Adc
PT6626
3.3Adc
9.0Vdc
Vo (nom)
Vo (nom)
5.0Vdc
Va (req’d)
Va (req’d)
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
(5.0)kΩ
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
6.0
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7.0
7.1
7.2
7.3
7.4
7.5
7.6
7.8
8.0
8.2
8.4
8.6
8.8
9.0
9.2
9.4
9.6
9.8
10.0
89.1k
55.4k
38.5k
28.4k
21.7k
16.8k
13.2k
10.4k
8.2k
(0.5)kΩ
(1.1)kΩ
59.9k
28.7k
18.3k
13.1k
10.0k
7.9k
(1.9)kΩ
(2.6)kΩ
(3.4)kΩ
(5.8)kΩ
(10.0)kΩ
(16.3)kΩ
(26.7)kΩ
(47.5)kΩ
(110.0)kΩ
(4.2)kΩ
(5.1)kΩ
(6.1)kΩ
6.4k
(7.1)kΩ
5.3k
(0.6)kΩ
(3.4)kΩ
6.3k
(8.1)kΩ
4.4k
4.8k
(9.3)kΩ
3.8k
(6.8)kΩ
(1.7)kΩ
(4.2)kΩ
3.5k
(10.5)kΩ
(11.9)kΩ
(13.3)kΩ
(14.9)kΩ
(16.6)kΩ
(18.4)kΩ
(20.5)kΩ
(22.7)kΩ
(25.2)kΩ
(27.9)kΩ
(31.0)kΩ
(34.4)kΩ
(38.3)kΩ
(42.8)kΩ
(53.9)kΩ
(69.6)kΩ
(93.0)kΩ
(132.0)kΩ
(210.0)kΩ
(445.0)kΩ
3.2k
120.0k
57.5k
36.7k
26.3k
20.0k
15.8k
12.9k
10.6k
8.9k
(11.2)kΩ
(17.1)kΩ
(25.4)kΩ
(37.8)kΩ
(58.5)kΩ
(99.8)kΩ
(224.0)kΩ
2.4k
(7.4)kΩ
1.4k
(11.3)Ω
(16.4)kΩ
(23.2)kΩ
(32.7)kΩ
(46.9)kΩ
(70.6)kΩ
(118.0)kΩ
(260.0)kΩ
(0.6)kΩ
(2.1)kΩ
(3.7)Ω
(5.5)kΩ
(7.4)kΩ
139.0k
63.5k
38.3k
25.7k
18.2k
13.1k
9.5k
(9.7)kΩ
7.5k
(12.2)kΩ
(15.1)kΩ
(18.4)kΩ
(22.3)kΩ
(26.9)kΩ
(32.5)kΩ
(39.2)kΩ
(47.6)kΩ
(58.5)kΩ
(73.0)kΩ
(93.2)kΩ
(124.0)kΩ
(174.0)kΩ
(275.0)kΩ
(579.0)kΩ
6.4k
5.4k
139.0k
63.5k
38.3k
25.7k
18.2k
13.1k
9.5k
6.8k
4.7k
3.0k
1.7k
6.8k
0.5k
4.7k
3.0k
63.5k
25.7k
13.1k
6.8k
1.7k
0.5k
3.0k
190.0k
R1 = (Red)
R2 = Black
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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