- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384597 > LM3101 (National Semiconductor Corporation) Secondary-Side PWM Controller PDF資料下載
參數(shù)資料
| 型號： | LM3101 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Secondary-Side PWM Controller |
| 中文描述： | 二次側(cè)PWM控制器 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 319K |
| 代理商： | LM3101 |
Electrical Characteristics
Specifications with standard typeface are for T
J
e
25
§
C, and those in
bold type-
face
apply over full
Operating Temperature Range
. Pin 2, MC is connected to V
S
by a 5 k
X
resistorDthis selects voltage
mode control operation. Unless otherwise specified, T
A
e
25
§
C, V
S
e
5V, R
FS
e
25 k
X
(F
O
e
500 kHz). (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
PULSE WIDTH MODULATOR SECTION
D
MAX
Maximum Duty Cycle
F
O
e
500 kHz
88
84
92
%
F
O
e
1 MHz
84
80
90
%
D
MIN
Minimum Duty Cycle
(Note 8)
F
O
e
500 kHz
2.5
6
8
%
F
O
e
1 MHz
4
10
12
%
t
dCS
Current Sense Time Delay
75
100
ns
OUTPUT SECTION
t
R
Rise Time
C
L
e
100 pF
20
ns
t
F
Fall Time
C
L
e
100 pF
30
ns
V
OL
Output Voltage
I
L
e
4 mA Sinking
F
O
e
100 kHz
1.3
1.4
1.6
V
V
OH
Output Voltage
I
L
e
4 mA Sourcing
F
O
e
100 kHz
3.6
3.4
3.8
V
OVER-VOLTAGE CROWBAR TRIGGER SECTION
%V
THC
Relative Trigger
Threshold
Relative to Nominal Feedback
Pin Voltage (Note 10)
18
16
20
22
24
%
I
CD
Crowbar Driver
Output Current
R
CD
e
10
X
170
240
mA
t
CD
Crowbar Delay
R
CD
e
10
X
, V
CD
e
1V
400
ns
t
C
Minimum Trigger Pulse Width
(Note 11)
400
ns
POWER-ON RESET FLAG SECTION
%V
THP
Relative POR Trigger
Threshold
Relative to Nominal
Feedback Pin Voltage (Note 10)
b
6
b
6.5
b
4.5
b
3
b
2.5
%
V
POR
POR Output Voltage
V
FB
e
1.11V
I
POR
e
1.6 mA
0.2
0.5
V
V
SM
Minimum Supply Voltage
(Note 12)
V
POR
s
0.5V
I
POR
e
1.6 mA
1
1.2
V
t
DR
Power-On Reset Delay
C
RD
e
2 nF
65
50
120
185
265
m
s
UNDER-VOLTAGE LOCKOUT SECTION
V
UV
Start-Up Threshold
(Note 13)
3.65
3.92
4.20
V
V
UVH
Threshold Hysteresis
300
mV
SUPPLY SECTION
I
S
Supply Current
V
S
e
5V
11
16
20
mA
4.5V
s
V
S
s
15V
15
24
28
mA
I
SFST
Soft-Start Current (Note 14)
V
SFST
e
0V
14.5
19.5
20.5
m
A
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3102 | SIMPLE SWITCHER㈢ Synchronous 1MHz 2.5A Step-Down Voltage Regulator |
| LM3102MHX | SIMPLE SWITCHER㈢ Synchronous 1MHz 2.5A Step-Down Voltage Regulator |
| LM3102MH | SIMPLE SWITCHER㈢ Synchronous 1MHz 2.5A Step-Down Voltage Regulator |
| LM3103 | SIMPLE SWITCHER㈢ Synchronous 1MHz 0.75A Step-Down Voltage Regulator |
| LM3103MH | SIMPLE SWITCHER㈢ Synchronous 1MHz 0.75A Step-Down Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3101M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Secondary-Side PWM Controller |
| LM3101N | 制造商:Texas Instruments 功能描述: |
| LM3102 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER㈢ Synchronous 1MHz 2.5A Step-Down Voltage Regulator |
| LM3102EVAL | 功能描述:BOARD EVALUATION LM3102 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®, SIMPLE SWITCHER® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)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(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM3102EVAL/NOPB | 功能描述:電源管理IC開發(fā)工具 LM3102 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。