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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 |
| 文件頁數(shù)： | 19/23頁 |
| 文件大?。?/td> | 379K |
| 代理商： | TL1451AQPWRG4Q1 |
TL1451A-Q1
DUAL PULSEWIDTHMODULATION CONTROL CIRCUITS
SGLS304A JUNE 2005 REVISED JUNE 2008
5
www.ti.com
short-circuit protection control section
PARAMETER
TEST CONDITIONS
TL1451AQ
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TA = 25°C
650
700
750
Input threshold voltage (SCP)
TA = 125°C
400
478
650
mV
Input threshold voltage (SCP)
TA = MIN
800
880
950
mV
Standby voltage (SCP)
140
185
230
mV
TA = 25°C
60
120
Latched input voltage (SCP)
TA = 125°C
70
120
mV
Latched input voltage (SCP)
TA = MIN
60
120
mV
Equivalent timing resistance
170
k
Comparator threshold voltage (FEEDBACK)
1.18
V
All typical values are at TA = 25°C unless otherwise indicated.
oscillator section
PARAMETER
TEST CONDITIONS
TL1451AQ
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
CT = 330 pF,
TA = 25°C
200
Frequency
CT = 330 pF,
RT = 10 k
TA = 125°C
195
kHz
Frequency
RT = 10 k
TA = MIN
193
kHz
Standard deviation of frequency
CT = 330 pF,
RT = 10 k
2%
TA = 25°C
1%
Frequency change with voltage
VCC = 3.6 V to 40 V
TA = 125°C
1%
Frequency change with voltage
VCC = 3.6 V to 40 V
TA = MIN
3%
Frequency change with temperature
1.37%
±10%}
All typical values are at TA = 25°C unless otherwise indicated.
These parameters are not production tested.
dead-time control section
PARAMETER
TEST CONDITIONS
TL1451AQ
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input bias current (DTC)
TA = 25°C
1
A
Input bias current (DTC)
TA = MIN and 125°C
3
A
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
Latched input voltage (DTC)
TA = MIN
2.28
2.4
V
Input threshold voltage at f = 10 kHz (DTC)
Zero duty cycle
2.05
2.25}
V
Input threshold voltage at f = 10 kHz (DTC)
Maximum duty cycle
1.2}
1.45
V
All typical values are at TA = 25°C unless otherwise indicated.
These parameters are not production tested.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TL1451AQPWRQ1 | 功能描述:DC/DC 開關(guān)控制器 Dual PWM Control Circuit RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TL1451C | 制造商:Panasonic Industrial Company 功能描述:IC |
| TL1451CDB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TL1451CDBR | 功能描述:DC/DC 開關(guān)控制器 Dual PWM Control Circuit RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TL1451CDBRG4 | 功能描述:DC/DC 開關(guān)控制器 Dual PWM Control Circuit RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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