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參數(shù)資料
| 型號(hào)： | LM5020MMX-1 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 100V Current Mode PWM Controller |
| 中文描述： | SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | MSOP-8 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 229K |
| 代理商： | LM5020MMX-1 |
Electrical Characteristics
(Continued)
Specifications in standard type face are for T
J
= +25C and those in
boldface type
apply over the full operating junction tem-
perature range. Unless otherwise specified: V
IN
= 48V, V
CC
= 10V, and RT = 31.6K
Symbol
Parameter
Conditions
Oscillator
Frequency1 (RT = 31.6k)
(Note 5)
Frequency2 (RT = 9.76k)
(Note 5)
Sync threshold
PWM Comparator
Delay to Output
COMP set to 2V CS
stepped 0 to 0.4V, Time
to onset of OUT transition
low
Min Duty Cycle
COMP=0V
Max Duty Cycle (-1 Device)
Max Duty Cycle (-2 Device)
COMP to PWM Comparator
Gain
COMP Open Circuit Voltage
COMP Short Circuit Current
COMP=0V
Slope Compensation
Slope Comp Amplitude
(LM5020-1 Device Only)
Comparator to CS
Output Section
Output High Saturation
Iout = 50mA, V
CC
- V
OUT
Output Low Saturation
I
OUT
= 100mA, V
OUT
Rise Time
Cload = 1nF
Fall Time
Cload = 1nF
Thermal Shutdown
Tsd
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
Min
Typ
Max
Units
175
560
2.4
200
630
3.2
225
700
3.8
kHz
kHz
V
25
ns
0
85
%
%
%
75
80
50
0.33
4.3
0.6
5.2
1.1
6.1
1.5
V
mA
Delta increase at PWM
80
105
130
mV
0.25
0.25
18
15
0.75
0.75
V
V
ns
ns
165
25
C
C
Note 1:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device
is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2:
The human body model is a 100 pF capacitor discharged through a 1.5k
resistor.
Note 3:
Limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 4:
Device thermal limitations may limit usable range.
Note 5:
Specification applies to the oscillator frequency. The operational frequency of the LM5020-2 devices is divided by two.
L
www.national.com
5
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| LM5020MMX-2 | 100V Current Mode PWM Controller |
| LM5020SD-1 | 100V Current Mode PWM Controller |
| LM5020SD-2 | 100V Current Mode PWM Controller |
| LM5020SDX-1 | 100V Current Mode PWM Controller |
| LM5020SDX-2 | 100V Current Mode PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM5020MMX-1/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 |
| LM5020MMX1-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Internal Start-up Bias Regulator, Error Amplifier |
| LM5020MMX-2 | 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 |
| LM5020MMX-2/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 |
| LM5020SD-1 | 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 |
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