參數(shù)資料
型號： LM3402HVMRX
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, TSOP-8
文件頁數(shù)： 5/24頁
文件大小： 431K
代理商： LM3402HVMRX
Electrical Characteristics
for T
A
= T
J
= +25°C. (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 apply
LM3402
Symbol
SYSTEM PARAMETERS
t
ON-1
t
ON-2
Parameter
Conditions
Min
Typ
Max
Units
On-time 1
V
IN
= 10V, R
ON
= 200 k
V
IN
= 40V, R
ON
= 200 k
2.1
2.75
3.4
μs
On-time 2
490
650
810
ns
LM3402HV
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM PARAMETERS
t
ON-1
t
ON-2
On-time 1
V
IN
= 10V, R
ON
= 200 k
V
IN
= 70V, R
ON
= 200 k
2.1
2.75
3.4
μs
On-time 2
290
380
470
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
CS Decreasing, SW turns on
194
200
206
mV
CS Increasing, SW turns off
300
mV
CS = 0V
0.1
μA
R
ON
/ SD Increasing
R
ON
/ SD Decreasing
0.3
0.7
1.05
V
40
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
mV
8.8
V
225
mV
55
50
0.4
16
mA
5.25
V
V
CC
Decreasing
150
mV
100 mV Overdrive
3
μs
Non-switching, CS = 0V
600
900
180
μA
RON / SD = 0V
90
μA
530
735
940
mA
DIM Increasing
2.2
V
DIM Decreasing
0.8
V
5
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相關代理商/技術參數(shù)
參數(shù)描述
LM3402HVMRX/NOPB 功能描述:開關變換器、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
LM3402MM 功能描述:開關變換器、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
LM3402MM/HALF 制造商:Texas Instruments 功能描述:DRIVER LED 0.5A POWERWISE MSOP8
LM3402MM/NOPB 功能描述:開關變換器、穩(wěn)壓器與控制器 0.5A CONSTANT CRNT BUCK REG 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
LM3402MMX 功能描述:開關變換器、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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