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參數資料
| 型號： | LM5020 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 100V Current Mode PWM Controller |
| 中文描述： | 100V的電流模式PWM控制器 |
| 文件頁數： | 5/12頁 |
| 文件大?。?/td> | 229K |
| 代理商： | LM5020 |
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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| LM5020MM-1 | 100V Current Mode PWM Controller |
| LM5020MM-2 | 100V Current Mode PWM Controller |
| LM5020MMX-1 | 100V Current Mode PWM Controller |
| LM5020MMX-2 | 100V Current Mode PWM Controller |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM5020_06 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:100V Current Mode PWM Controller |
| LM5020EVAL | 功能描述:電源管理IC開發(fā)工具 LM5020 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM5020EVAL/NOPB | 功能描述:電源管理IC開發(fā)工具 LM5020 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LM5020MM-1 | 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| LM5020MM-1/MEY8 | 制造商:Texas Instruments 功能描述: |
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