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TL499A Folha de dados(PDF) 4 Page - Texas Instruments

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Nome de Peças TL499A
Descrição Electrónicos  WIDE-RANGE POWER-SUPPLY CONTROLLERS
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

TL499A Folha de dados(HTML) 4 Page - Texas Instruments

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TL499A
WIDE-RANGE POWER-SUPPLY CONTROLLERS
SLVS029G – JANUARY 1984 – REVISED SEPTEMBER 2001
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
TL499A
L = 50
µH
SERIES IN1
SW REG IN2
RCL = 500 Ω
OUTPUT
CF = 470 µF
RE1
RE2 = 4.7 kΩ
CP = 0.01 µF
SERIES IN1
SW REG IN2
REF
SW CURRENT
CTRL
OUTPUT
SW IN
GND (PWR)
GND
+
1
3
8
7
6
5
8
1
2
3
4
Figure 1. TL499A Basic Configuration
Table 1. Maximum Output Current vs Input and Output Voltages
for Step-Up Switching Regulator With RCL = 150 Ω
OUTPUT
SWITCHING REGULATOR INPUT VOLTAGE (SW REG IN2)
(V)
OUTPUT
VOLTAGE
1.1
1.2
1.3
1.5
1.7
2
2.5
3
5
6
9
(V)
OUTPUT CURRENT
(mA)
30
65
90
25
50
80
100
20
20
25
30
80
100
100
15
15
20
30
45
55
100
100
100
12
10
15
20
25
30
40
55
70
100
100
100
10
15
20
25
30
35
45
65
80
100
100
9
20
25
25
35
40
50
70
90
100
100
6
30
35
40
45
55
75
95
100
5
35
40
45
55
70
85
100
100
Circuit of Figure 1, except:
4.5
35
45
50
60
75
95
100
100†
RCL = 150 Ω
3
55
65†
75†
95†
100†
CF = 330 µF
2.9
60†
70†
75†
100†
100†
CP = 0.1 µF
† The difference between the output and input voltage for these combinations is greater than the minimum
output-to-input differential-voltage specification at 70
°C (1.2 V), but less than the minimum at 85°C (1.9 V).


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