參數(shù)資料
型號(hào)： LM3402
廠商： National Semiconductor Corporation
英文描述： 0.5A Constant Current Buck Regulator for Driving High Power LEDs
中文描述： 0.5A的恒流降壓穩(wěn)壓器用于驅(qū)動(dòng)高功率LED
文件頁(yè)數(shù)： 4/22頁(yè)
文件大小： 840K
代理商： LM3402
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
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM3402_07 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:0.5A Constant Current Buck Regulator for Driving High Power LEDs
LM3402_08 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:0.5A Constant Current Buck Regulator for Driving High Power LEDs
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LM3402EVAL 功能描述:BOARD EVALUATION FOR LM3402 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - LED 驅(qū)動(dòng)器 系列:PowerWise® 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類(lèi)型:1，非隔離 輸出電壓:17V 特點(diǎn):可調(diào)光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關(guān)產(chǎn)品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD
LM3402EVAL 制造商:Texas Instruments 功能描述:EVAL BOARD
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