参数资料
型号: TL1454CN
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 1 A DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDIP16
封装: PLASTIC, DIP-16
文件页数: 10/25页
文件大小: 412K
代理商: TL1454CN
TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
TYPICAL CHARACTERISTICS
Figure 24
4
3
2
1
5
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
6
020
40
60
80
IOL – Low-Level Output Current – mA
Low-Level
Output
V
oltage
V
OL
VCC = 6 V
TA = 25°C
Figure 25
100
50
0
150
200
LOW-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
250
TA – Free-Air Temperature – °C
– 25
0
25
50
75
100
–50
VCC = 6 V
IO = 8 mA
Low-Level
Output
V
oltage
mV
V
OL
Figure 26
1.5
1
0.5
2
2.5
LOW-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
3
TA – Free-Air Temperature – °C
– 25
0
25
50
75
100
–50
VCC = 6 V
IO = 40 mA
Low-Level
Output
V
oltage
V
OL
Figure 27
4
3
2
1
5
AVERAGE SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
6
– 50
– 25
0
25
50
75
TA – Free-Air Temperature – °C
A
verage
Supply
Current
mA
I CC(a)
VCC = 6 V
RT = 10 k
CT = 1.5 V
COMP1, COMP2 = 1.25 V
No Load
100
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