參數(shù)資料
型號(hào): LM5041SD
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: Cascaded PWM Controller
中文描述: 0.01 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: LLP-16
文件頁(yè)數(shù): 6/16頁(yè)
文件大?。?/td> 343K
代理商: LM5041SD
Electrical Characteristics
(Continued)
Specifications with standard typeface are for T
= 25C, and those with
boldface
type apply over full
Operating Junction
Temperature range
. V
IN
= 48V, V
CC
= 10V, RT = 26.7k
, R
SET
= 20k
) unless otherwise stated (Note 3)
Symbol
Parameter
Conditions
Soft-Start
Soft-start Current
Source
Soft-start to COMP
Offset
Shutdown Threshold
Oscillator
Frequency1 (RT =
26.7K
)
Frequency2 (RT =
7.87K
)
Sync threshold
PWM Comparator
Delay to Output
COMP set to 2V
CS stepped 0 to 0.4V,
Time to onset of OUT
transition low
Max Duty Cycle
TS = Oscillator Period
Min Duty Cycle
COMP = 0V
COMP to PWM
Comparator Gain
COMP Open Circuit
Voltage
COMP Short Circuit
Current
Slope Compensation
Slope Comp Amplitude
Delta increase at PWM
Comparator to CS
UVLO Shutdown
Under-voltage
Shutdown
Under-voltage
Shutdown
Hysteresis Current
Source
Buck Stage Outputs
Output High level
Output High Saturation
I
OUT
= 10mA
REF = V
OUT
Output Low Saturation
I
OUT
= 10mA
Rise Time
C
L
= 100pF
Fall Time
C
L
= 100pF
Push-Pull Outputs
Overlap Time
R
SET
= 20k
Connected
to GND, 50% to 50%
Transitions
Dead Time
R
SET
= 20k
Connected
to GND, 50% to 50%
Transitions
Min
Typ
Max
Units
7
10
13
μA
0.35
0.55
0.75
V
0.25
0.5
0.75
V
T
J
= 25C
180
175
515
200
220
225
685
kHz
600
kHz
3
3.5
V
25
ns
(Ts-240ns)/Ts)
%
%
0
0.32
FB = 0V
4.1
4.8
5.5
V
FB = 0V, COMP = 0V
0.6
1
1.4
mA
110
mV
2.44
2.5
2.56
V
16
20
24
μA
5 (V
REF
)
0.5
V
V
1
0.5
10
10
1
V
ns
ns
60
90
120
ns
65
95
125
ns
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5041SD 制造商:Texas Instruments 功能描述:PWM CONTROLLER POWERWISE LLP-16
LM5041SD/NOPB 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
LM5041SDX 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
LM5041SDX/NOPB 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
LM5045 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Input operating range: 36V to 75V Board size: 2.28 x 1.45 x 0.5 inches