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參數(shù)資料
| 型號(hào)： | PT6985A |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 隔離反激式開關(guān)穩(wěn)壓9V輸出 |
| 文件頁(yè)數(shù)： | 4/13頁(yè) |
| 文件大?。?/td> | 293K |
| 代理商： | PT6985A |
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For technical support and more information, see inside back cover or visit www.ti.com
PT6982
10.5-A 12V-Input Dual Output
Integrated Switching Regulator
PT6982 Typical Characteristics
Efficiency vs Io
1
(See Note A)
Vo
1
Output Ripple vs Io
1
(See Note A)
Power Dissipation vs Io
1
(See Note A)
Safe Operating Area, V
in
=12V
(See Note B)
Note A:
Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.
Note B:
SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures
50
55
60
65
70
75
80
85
90
0
1
2
3
4
5
6
7
8
Io
1
(A)
E
1
1.5
2
Io
2
(A)
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
8
Io
1
(A)
P
2
1.5
1
0.1
Io
2
(A)
0
10
20
30
40
50
60
70
0
1
2
3
4
5
6
7
8
Io
1
(A) [ Io
2
fixed at Io
2
(typ) ]
R
PT6982 Performance Specifications
(Unless otherwise stated, T
a
=25°C, V
in
=12V, C
1
=560μF, C
2
=330μF, Io
1
=Io
1
typ, and Io
2
=Io
2
typ)
PT6982 (3.3V/2.5V)
Typ
Characteristic
Symbol
Conditions
Min
Max
Units
Output Current
Io
1
Io
2
Io
1
Io
2
V
in
V
o
tol
T
a
=25°C, natural convection
Vo
1
(3.3V)
Vo
2
(2.5V)
Vo
1
(3.3V)
Vo
2
(2.5V)
0.1
0
0.1
0
10.8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
(i)
8.5
2
8.5
2
—
±16
±12
±1.0
±0.5
±10
±5
±10
±10
±69
±39
84
35
35
60
±50
±30
(ii)
(ii)
10.5
(iii)
2.25
(iii)
10.5
(iii)
2.25
(iii)
13.2
±50
±38
—
—
±15
±7
±15
±13
—
—
—
—
—
—
—
—
A
T
a
=60°C, 200LFM airflow
(i)
(ii)
(ii)
A
Input Voltage Range
Set Point Voltage Tolerance
Over I
o
Range
VDC
Vo
1
Vo
2
Vo
1
Vo
2
Vo
1
Vo
2
Vo
1
Vo
2
Vo
1
Vo
2
mV
Temperature Variation
Reg
temp
–40° >T
a
> +85°C
%V
o
Line Regulation
Reg
line
Over V
in
range
mV
Load Regulation
Reg
load
Over I
o
range
mV
Total Output Voltage Variation
V
o
tot
Includes set-point, line, load
–40° >T
a
> +85°C
mV
Efficiency
V
o
Ripple (pk-pk)
η
V
r
%
20MHz bandwidth
Vo
1
Vo
2
mV
pp
Transient Response
t
tr
1A/μs load step, 50% to 100% I
o
typ
V
o
over/undershoot
μs
V
tr
Vo
1
Vo
2
mV
Notes:
(i)
Io
(min) current of 0.1A can be divided between both outputs, Vo
or Vo
. The module will operate at no load with reduced specifications.
The typical current is that which can be drawn simultaneously from both outputs under the stated operating conditions.
(iii) The sum of Io
1
and Io
2
must be less than Io
1
max, and Io
2
must be less than Io
2
max.
(ii)
20
30
40
50
60
70
80
90
0
1
2
3
4
5
6
7
8
Io
1
(A) [ Io
2
fixed at Io
2
(typ) ]
A
°
C
200LFM
120LFM
60LFM
Nat conv
Airflow
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