参数资料
型号: TL1454ACDG4
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, PDSO16
封装: GREEN, SOIC-16
文件页数: 11/25页
文件大小: 503K
代理商: TL1454ACDG4
TL1454A, TL1454AY
DUALCHANNEL PULSEWIDTHMODULATION (PWM)
CONTROL CIRCUIT
SLVS423 A MAY 2002 REVISED SEPTEMBER 2002
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 28
4
3
2
1
5
STANDBY SUPPLY CURRENT
vs
SUPPLY VOLTAGE
6
0
5
10
15
20
25
VCC Supply Voltage V
Standby
Supply
Current
mA
I CC(stby)
VCC = 6 V
RT = Open
CT = 1.5 V
COMP1, COMP2 = 1.25 V
No Load
TA = 25°C
Figure 29
4
3
2
1
50
0
50
Standby
Supply
Current
mA
5
6
100
I CC(stby)
VCC = 6 V
CT = 1.5 V
RT = Open
COMP1, COMP2 = 1.25 V
No Load
STANDBY SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
TA Free-Air Temperature °C
Figure 30
0.5
0
1
Reference
V
o
ltage
V
1.5
REFERENCE VOLTAGE
vs
SUPPLY VOLTAGE
V
ref
VCC Supply Voltage V
0
5
10
15
20
25
TA = 25°C
Figure 31
1.24
1.23
Reference
V
oltage
V
1.25
REFERENCE VOLTAGE
vs
SUPPLY VOLTAGE
1.27
V
ref
VCC Supply Voltage V
0
5
10
15
20
25
IO = 1 mA
TA = 25°C
1.26
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