- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98001 > LM5021NA-2/NOPB (NATIONAL SEMICONDUCTOR CORP) 0.7 A SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDIP8 PDF資料下載
參數(shù)資料
| 型號(hào)： | LM5021NA-2/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.7 A SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 10/15頁 |
| 文件大?。?/td> | 747K |
| 代理商： | LM5021NA-2/NOPB |
Electrical Characteristics Specifications in standard type face are for T
J= +25C and those in boldface type
apply over the full Operating Junction Temperature Range. Unless otherwise specified: V
IN = 15V, RT = 44.2K
. (Note
3) (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
PWM COMPARATOR
COMP to OUT delay
COMP set to 2V
CS stepped 0 to
0.4V, time to OUT
transition low, C
load
=0.
20
ns
Min Duty Cycle
COMP = 0V
0
%
Max Duty Cycle (-1 Device)
75
80
85
%
Max Duty Cycle (-2 Device)
50
%
COMP to PWM comparator gain
0.33
COMP Open Circuit Voltage
4.2
5.1
6
V
COMP at Max Duty Cycle
2.75
V
COMP Short Circuit Current
COMP = 0V
0.6
1.1
1.5
mA
SLOPE COMPENSATION
Slope Comp Amplitude
(LM5021-1 only)
CS pin to PWM
Comparator offset at
maximum duty cycle
70
90
110
mV
OUTPUT SECTION
OUT High Saturation
IOUT = 50mA, VCC
- OUT
0.6
1.1
V
OUT Low Saturation
IOUT = 100mA
0.3
1
V
Peak Source Current
OUT = VCC/2.
0.3
A
Peak Sink Current
OUT = VCC/2.
0.7
A
Rise time
C
load = 1nF
25
ns
Fall time
C
load = 1nF
10
ns
HICCUP MODE
V
OVLD
Over load detection threshold
COMP pin
V
SS-OCV – 0.8
V
SS-OCV – 0.6
V
SS-OCV– 0.4
V
HIC
Hiccup mode threshold
SS pin
V
SS-OCV – 0.8
V
SS-OCV – 0.6
V
SS-OCV– 0.4
V
RST
Hiccup mode Restart threshold
SS pin
0.1
0.3
0.5
V
I
DTCS
Dead-time current source
0.1
0.25
0.4
A
I
OVCS
Overload detection timer current
source
6
10
14
A
THERMAL RESISTANCE
θ
JA
MSOP-8 Junction to Ambient
0 LFM
200
C/W
θ
JA
MDIP-8 Junction to Ambient
0 LFM
107
C/W
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 into each pin.
Note 3: Min and Max limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical
Quality Control (SQC) methods. Limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 4: Device thermal limitations may limit usable range.
Note 5: After initial turn-on at VIN = 20V.
LM5021
www.national.com
4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM5041BSDX | SWITCHING CONTROLLER, 685 kHz SWITCHING FREQ-MAX, DSO16 |
| LM555H-MLS/NOPB | PULSE; RECTANGULAR, TIMER, MBCY8 |
| LM565MDC | PHASE LOCKED LOOP, UUC |
| LM78CCVFX-J | SPECIALTY ANALOG CIRCUIT, PQFP44 |
| LM78S40CNMDA | 1.5 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, UUC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM5022 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:60V Low Side Controller for Boost and SEPIC |
| LM5022_09 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:60V Low Side Controller for Boost and SEPIC |
| LM5022BSTBLDT/NOPB | 制造商:Texas Instruments 功能描述:60V LOW SIDE CONTROLLER FOR BOOST AND S - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:IC REG CTRLR BST PWM |
| LM5022EVAL | 功能描述:BOARD EVALUATION LM5022 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 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?fù)浣Y(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 |
| LM5022EVAL/NOPB | 功能描述:電源管理IC開發(fā)工具 LM5022 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)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)。