參數(shù)資料
型號： TL499
廠商： Texas Instruments, Inc.
英文描述： WIDE-RANGE POWER-SUPPLY CONTROLLERS
中文描述： 寬范圍電源控制器
文件頁數(shù)： 5/8頁
文件大?。?/td> 114K
代理商： TL499
TL499A
WIDE-RANGE POWER-SUPPLY CONTROLLERS
SLVS029F – JANUARY 1984 – REVISED MAY 2000
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
TL499A
L = 50
μ
H
SERIES IN1
SW REG IN2
RCL = 500
OUTPUT
CF = 470
μ
F
RE1
RE2 = 4.7 k
CP = 0.01
μ
F
SERIES IN1
REF
SW REG IN2
SW CURRENT
CTRL
OUTPUT
GND (PWR)
SW IN
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 R
CL
= 150
OUTPUT
VOLTAGE
(V)
SWITCHING REGULATOR INPUT VOLTAGE (SW REG IN2)
(V)
1.1
1.2
1.3
1.5
1.7
OUTPUT CURRENT
(mA)
2
2.5
3
5
6
9
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
35
40
45
65
70
45
50
75
75
55
60
95
100
70
75
100
100
85
95
100
100
100
100
Circuit of Figure 1, except:
RCL = 150
CF = 330
μ
F
CP = 0.1
μ
F
4.5
3
55
60
2.9
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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