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| 型号： | LT3465ES6#TR |
| 厂商： | Linear Technology |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT TSOT-6 |
| 标准包装： | 2,500 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 800kHz ~ 1.6MHz |
| 电源电压： | 2.7 V ~ 16 V |
| 输出电压： | 30V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
LT3465/LT3465A
APPLICATIO S I FOR ATIO
case. The Average FB Voltage vs PWM Duty Cycle curves
of different PWM frequencies with different output ca-
pacitors are shown in Figures 7c and 7d respectively. For
PWM frequency lower than 1kHz, the curves are almost
linear. For PWM frequency higher than 10kHz, the curves
show strong nonlinearity. Since the cause of the
nonlinearity is the output capacitor charging/discharg-
ing, the output capacitance and output voltage also affect
the nonlinearity in the high PWM frequencies. Because
smaller capacitance corresponds to shorter capacitor
charging/discharging time, the smaller output capaci-
tance has better linearity as shown in Figures 7c and 7d.
Figures 7e and 7f show the output voltage’s effect to the
curves. The PWM signal should be at least 1.8V in
magnitude; lower voltage will lower the feedback voltage
as shown in Equation 1.
200
180
160
140
120
100
80
60
40
20
C OUT = 0.22 μ F
4 LEDs
10Hz
100Hz
1kHz
10kHz
30kHz
200
180
160
140
120
100
80
60
40
20
C OUT = 0.47 μ F
4 LEDs
10Hz
100Hz
1kHz
10kHz
30kHz
0
0
20
40
60
80
100
0
0
10 20 30 40 50 60 70 80 90 100
CTRL PWM DUTY CYCLE (%)
3465A F07c
Figure 7c. V FB vs CTRL PWM Duty Cycle
CTRL PWM DUTY CYCLE (%)
3465A F07d
Figure 7d. V FB vs CTRL PWM Duty Cycle
200
180
160
140
120
100
80
60
40
20
10kHz PWM
C OUT = 0.22 μ F
2 LEDs
3 LEDs
4 LEDs
200
180
160
140
120
100
80
60
40
20
30kHz PWM
C OUT = 0.22 μ F
2 LEDs
3 LEDs
4 LEDs
0
0
20
40
60
80
100
0
0
20
40
60
80
100
CTRL PWM DUTY CYCLE (%)
3465A F07e
Figure 7e.V FB vs CTRL PWM Duty Cycle
CTRL PWM DUTY CYCLE (%)
3465A F07f
Figure 7f.V FB vs CTRL PWM Duty Cycle
3465afa
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相关PDF资料 |
PDF描述 |
|---|---|
| LT3465ES6#TRM | IC LED DRIVR WHITE BCKLGT TSOT-6 |
| P51-500-A-AF-MD-4.5OVP-000-000 | SENSOR 500PSI 9/16-18 UNF 4.5V |
| 4905-3/4"X72YD SM PK | TAPE VHB ACRYLIC CLEAR 3/4"X72YD |
| REC3-2405SRW/H4/C/M | CONV DC/DC 3W 18-36VIN 05VOUT |
| P51-500-A-Z-M12-20MA-000-000 | SENSOR 500PSI 1/4-18NPT 4-20MA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3465ES6TRMPBF | 制造商:Linear Technology 功能描述:LED Driver 6-Seg 3.3/5/9/12/15V TSOT23-6 |
| LT3466 | 制造商:LINER 制造商全称:Linear Technology 功能描述:20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN |
| LT3466-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN |
| LT3466EDD | 功能描述:IC LED DRIVR WHITE BCKLGT 10-DFN RoHS:否 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LT3466EDD#PBF | 功能描述:IC LED DRIVR WHITE BCKLGT 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
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