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參數(shù)資料
| 型號： | TL1454IN |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| 中文描述： | 雙通道脈寬調(diào)制（PWM）控制電路 |
| 文件頁數(shù)： | 10/24頁 |
| 文件大小： | 390K |
| 代理商： | TL1454IN |
TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
electrical characteristics over recommended operating free-air temperature range, V
CC
= 6 V,
f
osc
= 500 kHz (unless otherwise noted) (continued)
supply current
PARAMETER
TEST CONDITIONS
TL1454
TYP
UNIT
MIN
MAX
ICC(stby)
Standby supply current
RT open, CT = 1.5 V, No load,
VO (COMP1, COMP2) = 1.25 V,
RT = 10 k
,
50% duty cycle,
3.1
6
mA
ICC(average)
Average supply current
CT = 120 pF,
Outputs open
3.5
7
mA
electrical characteristics, V
CC
= 6 V, f
osc
= 500 kHz, T
A
= 25
°
C (unless otherwise noted)
reference
PARAMETER
TEST CONDITIONS
TL1454Y
TYP
1.25
UNIT
MIN
MAX
Vref
Output voltage, REF
Input regulation
Output regulation
IO = 1 mA,
VOC = 3.6 V to 20 V,
IO = 0.1 mA to 1 mA
IO = 1 mA
IO = 1 mA
Vref = 0 V
V
IO = 1 mA
2
1
mV
mV
Output voltage change with temperature
–1.25
mV
–2.5
30
IOS
Short-circuit output current
mA
undervoltage lockout (UVLO)
PARAMETER
TEST CONDITIONS
TL1454Y
TYP
2.9
UNIT
MIN
MAX
VIT+
VIT–
Vhys
Positive-going threshold voltage
V
Negative-going threshold voltage
2.7
V
Hysteresis, VIT+ – VIT–
200
mV
short-circuit protection (SCP)
PARAMETER
TEST CONDITIONS
TL1454Y
TYP
UNIT
MIN
MAX
VIT
Vstby
VI(latched)
VIT(COMP)
Input threshold voltage
Standby voltage
1
V
No pullup
185
mV
Latched-mode input voltage
Comparator threshold voltage
Input source current
60
1
mV
V
μ
A
COMP1, COMP2
VO(SCP) = 0
–15
This symbol is not presently listed within EIA/JEDEC standards for semiconductor symbology.
oscillator
PARAMETER
TEST CONDITIONS
TL1454Y
TYP
500
UNIT
MIN
MAX
fosc
Frequency
Standard deviation of frequency
Frequency change with voltage
CT = 120 pF,
RT = 10 k
kHz
kHz
kHz
50
VCC = 3.6 V to 20 V
5
Frequency change with temperature
–2
kHz
–10
1.8
1.1
Maximum ramp voltage
Minimum ramp voltage
V
V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TL1454PW | DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454YD | DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454YN | DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454D | DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| TL1454N | DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| TL1454YN | 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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