參數(shù)資料
型號(hào)： TL1454ACNS
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)： 9/27頁
文件大小： 409K
代理商： TL1454ACNS
TL1454A, TL1454AY
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS423 A
–
MAY 2002
–
REVISED SEPTEMBER 2002
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, V
CC
= 6 V,
f
osc
= 500 kHz (unless otherwise noted) (continued)
oscillator
PARAMETER
TEST CONDITIONS
TL1454A
TYP
UNIT
MIN
MAX
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 = TA(min) to 25
°
C
TA = 25
°
C to 85
°
C
TA = 25
°
C
10
kHz
Frequency change with temperature
–
2
±
30
±
30
kHz
–
10
Maximum ramp voltage
1.8
V
Minimum ramp voltage
1.1
V
dead-time control (DTC)
PARAMETER
TEST CONDITIONS
TL1454A
TYP
1.1
UNIT
MIN
0.98
MAX
1.22
VIT
Input threshold voltage
Duty cycle = 0%
V
Duty cycle = 100%
0.38
0.5
0.62
VI(latched)
IIB
Latched-mode input voltage
1.2
V
μ
A
μ
A
Common-mode input bias current
DTC1, IN1+
≈
1.2 V
TA = 25
°
C
4
Latched-mode (source) current
–
100
error-amplifier
PARAMETER
TEST CONDITIONS
TL1454A
UNIT
MIN
TYP
MAX
VIO
IIO
IIB
VICR
AV
Input offset voltage
6
mV
Input offset current
VO = 1.25 V,
VO 1.25 V,
VIC = 1.25 V
VIC 1.25 V
100
nA
Input bias current
–
160
–
500
nA
Input voltage range
VCC = 3.6 V to 20 V
RFB = 200 k
–
0.2 to 1.40
V
Open-loop voltage gain
70
80
dB
Unity-gain bandwidth
3
MHz
CMRR
Common-mode rejection ratio
60
80
dB
VOM(max)
VOM(min)
IO+
IO
–
output
Positive output voltage swing
2.3
2.43
V
Negative output voltage swing
0.63
0.8
Output sink current
VID =
–
0.1 V,
VID = 0.1 V,
VO = 1.20 V
VO = 1.80 V
0.1
0.5
mA
μ
A
Output source current
–
45
–
70
PARAMETER
TEST CONDITIONS
TL1454A
MIN
VCC
–
2
VCC
–
2.3 V
VCC
–
2
VCC
–
2.3 V
UNIT
TYP
4.5
MAX
IO =
–
8 mA
IO =
–
8 mA @ VCC = >10 V
IO =
–
40 mA
IO = 40 mA @ VCC = >10 V
IO = 8 mA
IO = 40 mA
VOH
High level output voltage
High-level output voltage
V
4.4
VOL
Low level output voltage
Low-level output voltage
0.1
0.4
V
1.8
2.5
trv
tfv
Output voltage rise time
Output voltage fall time
CL= 2000 pF
CL = 2000 pF,
TA= 25
TA = 25
°
C
220
220
ns
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TL1454ACNSRG4 功能描述:DC/DC 開關(guān)控制器 Dual ch PWM Ctlr 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
TL1454ACPW 功能描述:DC/DC 開關(guān)控制器 Dual-Ch 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
TL1454ACPWG4 功能描述:DC/DC 開關(guān)控制器 Dual-Ch 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
TL1454ACPWR 功能描述:DC/DC 開關(guān)控制器 Dual ch PWM Ctlr 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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