參數(shù)資料
型號： TL1451ACPWR
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
文件頁數(shù)： 23/36頁
文件大?。?/td> 950K
代理商： TL1451ACPWR
TL1451A
DUAL PULSEWIDTHMODULATION CONTROL CIRCUITS
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
3
www.ti.com
absolute maximum ratings over operating free-air temperature range
Supply voltage, VCC
51 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amplifier input voltage, VI
20 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Collector output voltage, VO
51 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Collector output current, IO
21 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous power total dissipation
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA C suffix
–20
°C to 85°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Q suffix
–40
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M suffix
–55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
TA = 125°C
POWER RATING
D
1088 mW
8.7 mW/
°C
696 mW
566 mW
218 mW
DB
775 mW
6.2 mW/
°C
496 mW
403 mW
—
N
1000 mW
8.0 mW/
°C
640 mW
520 mW
—
NS
500 mW
4.0 mW/
°C
320 mW
260 mW
—
PW
838 mW
6.7 mW/
°C
536 mW
436 mW
168 mW
FK
1375 mW
11.0 mW/
°C
880 mW
715 mW
275 mW
J
1375 mW
11.0 mW/
°C
880 mW
715 mW
275 mW
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VCC
3.6
50
V
Amplifier input voltage, VI
1.05
1.45
V
Collector output voltage, VO
50
V
Collector output current, IO
20
mA
Current into feedback terminal
45
A
Feedback resistor, RF
100
k
Timing capacitor, CT
150
15000
pF
Timing resistor, RT
5.1
100
k
Oscillator frequency
1
500
kHz
C suffix
–20
85
Operating free-air temperature, TA
Q suffix
–40
125
°C
g, A
M suffix
–55
125
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