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參數(shù)資料
| 型號： | LM3402MMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
| 中文描述： | 0.94 A SWITCHING REGULATOR, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 4/22頁 |
| 文件大?。?/td> | 840K |
| 代理商： | LM3402MMX |
Electrical Characteristics
apply for T
A
= T
J
= +25C. (Note 4) Limits appearing in boldface type apply over full Operating Temperature Range.
Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
V
IN
= 24V unless otherwise indicated. Typicals and limits appearing in plain type
LM3402
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM PARAMETERS
t
ON-1
t
ON-2
On-time 1
On-time 2
V
IN
= 10V, R
ON
= 200 k
V
IN
= 40V, R
ON
= 200 k
2.1
490
2.75
650
3.4
810
μs
ns
LM3402HV
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM PARAMETERS
t
ON-1
t
ON-2
On-time 1
On-time 2
V
IN
= 10V, R
ON
= 200 k
V
IN
= 70V, R
ON
= 200 k
2.1
290
2.75
380
3.4
470
μs
ns
LM3402/LM3402HV
Symbol
Parameter
Conditions
Min
Typ
Max
Units
REGULATION AND OVER-VOLTAGE COMPARATORS
V
REF-REG
CS Regulation Threshold
V
REF-0V
CS Over-voltage Threshold
I
CS
CS Bias Current
SHUTDOWN
V
SD-TH
Shutdown Threshold
V
SD-HYS
Shutdown Hysteresis
OFF TIMER
t
OFF-MIN
Minimum Off-time
INTERNAL REGULATOR
V
CC-REG
V
CC
Regulated Output
V
IN-DO
V
IN
- V
CC
Dropout
V
CC-BP-TH
V
CC
Bypass Threshold
V
CC-BP-HYS
V
CC
Bypass Hysteresis
V
CC-Z-6
V
CC
Output Impedance
(0 mA
<
I
CC
<
5 mA)
V
CC-Z-8
V
CC-Z-24
V
CC-LIM
V
CC
Current Limit (Note 3)
V
CC-UV-TH
V
CC
Under-voltage Lock-out
Threshold
V
CC-UV-HYS
V
CC
Under-voltage Lock-out
Hysteresis
V
CC-UV-DLY
V
CC
Under-voltage Lock-out
Filter Delay
I
IN-OP
I
IN
Operating Current
I
IN-SD
I
IN
Shutdown Current
CURRENT LIMIT
I
LIM
Current Limit Threshold
DIM COMPARATOR
V
IH
Logic High
V
IL
Logic Low
I
DIM-PU
DIM Pull-up Current
CS Decreasing, SW turns on
CS Increasing, SW turns off
CS = 0V
194
200
300
0.1
206
mV
mV
μA
R
ON
/ SD Increasing
R
ON
/ SD Decreasing
0.3
0.7
40
1.05
V
mV
CS = 0V
300
ns
6.6
7
7.4
V
I
CC
= 5 mA, 6.0V
<
V
IN
<
8.0V
V
IN
Increasing
V
IN
Decreasing
V
IN
= 6V
V
IN
= 8V
V
IN
= 24V
V
IN
= 24V, V
CC
= 0V
V
CC
Increasing
300
8.8
225
55
50
0.4
16
5.25
mV
V
mV
mA
V
V
CC
Decreasing
150
mV
100 mV Overdrive
3
μs
Non-switching, CS = 0V
RON / SD = 0V
600
90
900
180
μA
μA
530
735
940
mA
DIM Increasing
DIM Decreasing
DIM = 1.5V
2.2
V
V
μA
0.8
75
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3402MMX/NOPB | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3402MR | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 6V to 42V 8-Pin PSOP EP Rail |
| LM3402MR/NOPB | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3402MRX | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 6V to 42V 8-Pin HSOP EP T/R |
| LM3402MRX/NOPB | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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