參數(shù)資料
型號： TL1451ACDB
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： PLASTIC, SSOP-16
文件頁數(shù)： 34/36頁
文件大?。?/td> 950K
代理商： TL1451ACDB
TL1451A
DUAL PULSEWIDTHMODULATION CONTROL CIRCUITS
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
7
www.ti.com
short-circuit protection control section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TA = 25°C
650
700
750
Input threshold voltage (SCP)
TA = 125°C
400
478
550
mV
In ut 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 in ut 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, TL1451AM
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
C
330 F
TA = 25°C
200
Frequency
CT = 330 pF,
RT =10k
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
TA = MIN
3%
Frequency change with temperature
1.37%
*
±10%
*These parameters are not production tested.
All typical values are at TA = 25°C unless otherwise indicated.
dead-time control section
PARAMETER
TEST CONDITIONS
TL1451AQ, TL1451AM
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Inp t bias c rrent (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
2.30
Latched input voltage (DTC)
TA = 125°C
2.22
2.32
V
Latched in ut voltage (DTC)
TA = MIN
2.28
2.40
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
*1.20
1.45
V
*These parameters are not production tested.
All typical values are at TA = 25°C unless otherwise indicated.
相關(guān)PDF資料
PDF描述
TL1451AMFK 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CQCC20
TL1451ACDR 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
TL1451AQDREP 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
TL1451ACD 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
TL1451AMJ 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP16
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