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參數(shù)資料
| 型號(hào)： | TL1454IDR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, SO-16 |
| 文件頁(yè)數(shù)： | 25/25頁(yè) |
| 文件大小： | 412K |
| 代理商： | TL1454IDR |
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TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
electrical characteristics over recommended operating free-air temperature range, VCC = 6 V,
fosc = 500 kHz (unless otherwise noted) (continued)
oscillator
PARAMETER
TEST CONDITIONS
TL1454
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
fosc
Frequency
CT = 120 pF,
RT = 10 k
500
kHz
Standard deviation of frequency
50
kHz
Frequency change with voltage
VCC = 3.6 V to 20 V,
TA = 25°C
5
kHz
Frequency change with temperature
TA = TA(min) to 25°C
–2
±20
kHz
Frequency change with temperature
TA = 25°C to 85°C
–10
±20
kHz
Maximum ramp voltage
1.8
V
Minimum ramp voltage
1.1
V
dead-time control (DTC)
PARAMETER
TEST CONDITIONS
TL1454
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIT
Input threshold voltage
Duty cycle = 0%
1
1.1
1.2
V
VIT
Input threshold voltage
Duty cycle = 100%
0.4
0.5
0.6
V
VI(latched) Latched-mode input voltage
1.2
V
IIB
Common-mode input bias current
DTC1, IN1+
≈ 1.2 V
4
A
Latched-mode (source) current
TA = 25°C
– 100
A
error-amplifier
PARAMETER
TEST CONDITIONS
TL1454
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIO
Input offset voltage
6
mV
IIO
Input offset current
VO = 1.25 V,
VIC = 1.25 V
100
nA
IIB
Input bias current
– 160
– 500
nA
VICR
Input voltage range
VCC = 3.6 V to 20 V
– 0.2 to 1.40
V
AV
Open-loop voltage gain
RFB = 200 k
70
80
dB
Unity-gain bandwidth
3
MHz
CMRR
Common-mode rejection ratio
60
80
dB
VOM(max) Positive output voltage swing
2.3
2.43
V
VOM(min)
Negative output voltage swing
0.63
0.8
V
IO+
Output sink current
VID = – 0.1 V,
VO = 1.20 V
0.1
0.5
mA
IO–
Output source current
VID = 0.1 V,
VO = 1.80 V
–45
–70
A
output
PARAMETER
TEST CONDITIONS
TL1454
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High level output voltage
IO = – 8 mA
VCC–2
4.5
V
VOH
High-level output voltage
IO = – 40 mA
VCC–2
4.4
V
VOL
Low level output voltage
IO = 8 mA
0.1
0.4
V
VOL
Low-level output voltage
IO = 40 mA
1.8
2.5
V
trv
Output voltage rise time
CL = 2000 pF
TA =25°C
220
ns
tfv
Output voltage fall time
CL = 2000 pF,
TA = 25°C
220
ns
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TL1454IN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454N | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454PW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454Y | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454YD | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
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