參數(shù)資料
型號(hào): TL1451AQPWRG4Q1
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝: GREEN, PLASTIC, TSSOP-16
文件頁(yè)數(shù): 10/23頁(yè)
文件大?。?/td> 379K
代理商: TL1451AQPWRG4Q1
TL1451A-Q1
DUAL PULSEWIDTHMODULATION CONTROL CIRCUITS
SGLS304A JUNE 2005 REVISED JUNE 2008
18
www.ti.com
TYPICAL CHARACTERISTICS
50
60
90
100
0
0.5
1
1.5
2
2.5
3
Output
T
ransistor
“On”
Duty
Cycle
%
30
10
Dead-Time Input Voltage V
OUTPUT TRANSISTOR ON DUTY CYCLE
vs
DEAD-TIME INPUT VOLTAGE
0
3.5
4
70
20
40
80
VCC = 3.6 V
RT = 10k
CT = 330 pF
1
0.5
0
010
20
ICC
(Standby)
Standby
Current
mA
2
STANDBY CURRENT
vs
SUPPLY VOLTAGE
30
40
1.5
CCI
VCC Supply Voltage V
TA = 25°C
1.75
1.25
0.75
0.25
Figure 24
Figure 25
1
0.5
0
25
0
25
50
ICC
Supply
Current
mA
1.5
2
STANDBY CURRENT
vs
FREE-AIR TEMPERATURE
75
100
CCI
TA Free-Air Temperature °C
Average Supply Current
VCC = 6 V, RT = 10 k,
CT = 330 pF
Stand-By Current, VCC = 40 V, No Load
Stand-By Current, VCC = 3.6 V, No Load
600
400
200
0
25
0
25
50
Maximum
Continuous
Power
Dissipation
mW
800
1000
MAXIMUM CONTINUOUS POWER DISSIPATION
vs
FREE-AIR TEMPERATURE
1200
75
100
1100
900
700
500
300
100
16-Pin N Plastic Dip
16-Pin NS Plastic SO
Thermal Resistance
125
°C/W
Thermal Resistance
250
°C/W
TA Free-Air Temperature
1.75
1.25
0.75
0.25
Figure 26
Figure 27
相關(guān)PDF資料
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