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參數(shù)資料
| 型號： | LM5026 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Active Clamp Current Mode PWM Controller |
| 中文描述： | 有源鉗位電流模式PWM控制器 |
| 文件頁數(shù)： | 6/23頁 |
| 文件大?。?/td> | 936K |
| 代理商： | LM5026 |
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 = 30.0k
, R
SET
= 34.8k
) unless otherwise stated (Note 3)
Symbol
Parameter
Conditions
CS Sink Impedance
(clocked)
Over Current Restart
Restart Threshold
Fault Charging
Current
Discharging Current
Soft-Start
Soft-start Current
Source
Soft-stop Current
Sink
Soft-start Current
Source following a
restart event
Oscillator
Frequency1
RT = 30.0 k
Frequency2
RT = 10.0 k
SYNC Source
Current
SYNC Sink
Impedance
controllers minimum
Sync Threshold
(falling)
Sync Pulse Width
Minimum
PWM Comparator
Delay to Output
CS stepped, Time to onset of
OUT_A transition low
Mimimum Duty
Cycle
Maximum Duty
Cycle Limit 1
V
DCL
= 2.5V
Maximum Duty
Cycle Limit 2
V
DCL
= V
RT
x 0.875
Maximum Duty
Cycle Limit 3
V
DCL
= 2.5V
SS to PWM Offset
COMP Input
Impedance
Slope Compensation
Amplitude
comparator to CS
Output Section
OUT_A High
Saturation
OUTPUT_A Peak
Current Sink
OUT_A Low
Saturation
Min
Typ
30
Max
50
Units
I
CS
= 10mA
2.4
7.5
2.55
10
2.7
12.5
V
μA
7.5
10
12.5
μA
38
50
58
μA
38
50
58
0.6
1
1.3
180
520
200
590
200
220
660
kHz
kHz
μA
Can sync up to 5 like
100
1.4
V
15
ns
40
ns
I
COMP
= 1mA
0
%
UVLO=1.3V, COMP = open,
80
%
UVLO=1.3V, COMP = open,
70
%
UVLO=2.92V, COMP = open,
40
%
1.4
1700
V
Small signal impedance
Delta increase at PWM
75
90
115
mV
MOS Device
@
Iout = -10mA,
5
10
Bipolar Device
@
Vcc/2
3
A
MOS Device
@
Iout = 10mA,
6
9
L
www.national.com
6
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| LM5026MT | Active Clamp Current Mode PWM Controller |
| LM5026MTX | Active Clamp Current Mode PWM Controller |
| LM5026SD | Active Clamp Current Mode PWM Controller |
| LM5026SDX | Active Clamp Current Mode PWM Controller |
| LM5030 | 100V Push-Pull Current Mode PWM Controller |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM5026_09 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Active Clamp Current Mode PWM Controller |
| LM5026EVAL | 功能描述:BOARD EVALUATION LM5026 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:PowerWise® 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓撲結(jié)構(gòu):升壓 頻率 - 開關:3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM5026EVAL/NOPB | 功能描述:電源管理IC開發(fā)工具 LM5026 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
| LM5026MT | 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(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| LM5026MT/NOPB | 功能描述:電流型 PWM 控制器 Current Mode Active Reset 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(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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