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參數資料
| 型號： | LT3486 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual 1.3A White LED Step-Up Converters with Wide Dimming |
| 中文描述： | 雙1.3a標準白光LED升壓轉換器具有較寬的亮度調節(jié)， |
| 文件頁數： | 4/20頁 |
| 文件大?。?/td> | 839K |
| 代理商： | LT3486 |
LT3486
4
3486f
TYPICAL PERFOR
U
A
CE CHARACTERISTICS
T
A
= 25°C unless otherwise specified.
V
50V/DIV
V
10V/DIV
I
L2
500mA/DIV
I
L1
1A/DIV
0.5
μ
s/DIV
3486 G17
V
IN
= 3.6V
8 LEDs/25mA
2 LEDs/320mA
CIRCUIT OF FRONT PAGE APPLICATION
PWM DUTY CYCLE (%)
0.1
I
L
1
10
100
0.01
1
10
100
3486 G01
0.01
0.1
V
= 12V
8/8 LEDs
PWM FREQ = 100Hz
Switching Waveforms
PWM Dimming Wavforms
LED Current vs PWM Duty Cycle
Wide Dimming Range (1000:1)
V
FB
vs V
CTRL
V
FB
vs V
CTRL
(Temperature Variation)
SHDN Pin Bias Current
(CTRL1 = CTRL2 = 3V)
Open-Circuit Output Clamp
Voltage vs Temperature
Open-Circuit Output Clamp
Voltage vs V
IN
CONTROL VOLTAGE (V)
0
F
100
150
2
3486 G03
50
0
0.5
1
1.5
250
200
V
IN
= 3.6V
T
A
= 25
°
C
CONTROL VOLTAGE (V)
0
F
100
150
2
3486 G04
50
0
0.5
1
1.5
250
200
T
A
= –50
°
C
T
A
= 85
°
C
T
A
= 25
°
C
±
5mV
SHDN PIN VOLTAGE (V)
140
120
100
80
60
40
20
0
3486 G05
S
μ
A
0
12
20
4
8
16
24
TA = 50
°
C
TA = 25
°
C
TA = 100
°
C
VIN = 3.6V
TEMPERATURE (
°
C)
–50
33
O
34
35
36
37
–25
0
25
50
3486 G06
75
100
125
V
OUT2
V
OUT1
V
IN
= 3.6V
R
T
= 63.4k
V
IN
(V)
2
O
35
36
18
3486 G07
34
33
6
10 12
22 24
37
14
4
8
20
16
V
OUT2
V
OUT1
V
IN
= 3.6V
R
T
= 63.4k
I
L
500mA/DIV
I
200mA/DIV
PWM
5V/DIV
0.2ms/DIV
3486 G18
V
= 12V
8/8 LEDs
PWM FREQ = 1kHz
相關PDF資料 |
PDF描述 |
|---|---|
| LT3486EDHC | Dual 1.3A White LED Step-Up Converters with Wide Dimming |
| LT3486EFE | Dual 1.3A White LED Step-Up Converters with Wide Dimming |
| LT3524 | Regulating Pulse Width Modulator |
| LT3524N | Regulating Pulse Width Modulator |
| LT1524 | Regulating Pulse Width Modulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LT3486_08 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 1.3A White LED Step-Up Converters with Wide Dimming |
| LT3486EDHC | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 1.3A White LED Step-Up Converters with Wide Dimming |
| LT3486EDHC#PBF | 功能描述:IC LED DRIVR WHITE BCKLGT 16-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅動器 系列:- 標準包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓撲:開路漏極，PWM 輸出數:4 內部驅動器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應商設備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LT3486EDHC#TRPBF | 功能描述:IC LED DRIVR WHITE BCKLGT 16-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅動器 系列:- 標準包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓撲:開路漏極，PWM 輸出數:4 內部驅動器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應商設備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LT3486EFE | 制造商:Linear Technology 功能描述:LED DRVR 16Segment 3.3V/5V/9V/12V/15V/18V 16-Pin TSSOP EP |
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