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參數(shù)資料
| 型號： | TL1451AMDREP |
| 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, MS-012AC, SOIC-16 |
| 文件頁數(shù)： | 21/25頁 |
| 文件大?。?/td> | 522K |
| 代理商： | TL1451AMDREP |
www.ti.com
Dead-Time Control Section Electrical Characteristics
Error-Amplifier Section Electrical Characteristics
TL1451A-EP
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS614 – DECEMBER 2005
over recommended operating free-air temperature range, V
CC = 6 V, f = 200 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP(1)
MAX
UNIT
TA = 25°C
1
Input bias current (DTC)
A
TA = MIN and 125°C
3
Latch mode (source) current (DTC)
–80
–145
A
TA = 25°C
2.3
Latched input voltage (DTC)
TA = 125°C
2.22
2.32
V
TA = MIN
2.28
2.4
Zero duty cycle
2.05
2.25(2)
Input threshold voltage at f = 10 kHz (DTC)
V
Maximum duty cycle
1.2(2)
1.45
(1)
All typical values are at TA = 25°C, unless otherwise indicated.
(2)
These parameters are not production tested.
over recommended operating free-air temperature range, V
CC = 6 V, f = 200 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP(1)
MAX
UNIT
TA = 25°C
±7
Input offset voltage
VO (FEEDBACK) = 1.25 V
TA = 125°C
±10
mV
TA = MIN
±12
TA = 25°C
±100
Input offset current
VO (FEEDBACK) = 1.25 V
TA = 125°C
±100
nA
TA = MIN
±200
TA = 25°C
160
500
Input bias current
VO (FEEDBACK) = 1.25 V
TA = 125°C
100
500
nA
TA = MIN
142
700
Common-mode input voltage range
VCC = 3.6 V to 40 V
1.05 to 1.45
V
TA = 25°C
70
80
Open-loop voltage amplification
RF = 200 k
TA = 125°C
70
80
dB
TA = MIN
64
80
Unity-gain bandwidth
1.5
MHz
Common-mode rejection ratio
60
80
dB
Positive output voltage swing
2
V
Negative output voltage swing
1
V
TA = 25°C
0.5
1.6
Output (sink) current (FEEDBACK)
VID = –0.1 V, VO = 1.25 V
TA = 125°C
0.4
1.8
mA
TA = MIN
0.3
1.7
TA = 25°C
–45
–70
Output (source) current (FEEDBACK)
VID = 0.1 V, VO = 1.25 V
TA = 125°C
–25
–50
A
TA = MIN
–15
–70
(1)
All typical values are at TA = 25°C, unless otherwise indicated.
5
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