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参数资料
| 型号： | MAX1579 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Complete Bias and White LED Power Supplies for Small TFT Displays |
| 中文描述： | 可提供完备偏置的白光LED电源，用于TFT显示器 |
| 文件页数： | 5/13页 |
| 文件大小： | 221K |
| 代理商： | MAX1579 |
Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 3, V
IN
= 3.6V, I
LED
= 20mA, 4 LEDs, CTRL = IN, T
A
= +25
°
C, unless otherwise noted.)
M
Complete Bias and White LED Power S upplies
for S mall T FT Displays
_______________________________________________________________________________________
5
PWM-DIMMING WAVEFORMS
M
V
CTRL
I
IN
V
AC-COUPLED
V
IN
AC-COUPLED
2V/div
50mV/div
20mA/div
20mV/div
40
μ
s/div
0
400
200
800
600
1200
1000
1400
0
2
3
1
4
5
LCD BIAS SUPPLY CURRENT
vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
I
I
μ
A
V
CTRL
= 0V
LCD BIAS STARTUP SEQUENCE
M
V
ONBIAS
V
POS
V
NEG
V
MAIN
5V/div
5V/div
10V/div
5V/div
10ms/div
BOOST STARTUP AND
SHUTDOWN WAVEFORMS
M
V
CTRL
I
IN
V
OUT
V
IN
AC-COUPLED
2V/div
5V/div
0V
100mA/div
20mV/div
4ms/div
0
5
10
15
20
25
0
40 50
20 30
10
60 70 80 90 100
LED CURRENT vs.
DIRECT-PWM DUTY CYCLE
M
PWM DUTY CYCLE (%)
I
L
f
PWM
= 200Hz TO200kHz
BOOST-SWITCHING WAVEFORMS
M
V
IN
AC-COUPLED
V
LX
V
OUT
AC-COUPLED
20mV/div
10V/div
200mV/div
400ns/div
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1579ETG | 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1579ETG+ | 功能描述:LED照明驱动器 Cmplete Bias & White LED Power Supply RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1579ETG+T | 功能描述:LED照明驱动器 Cmplete Bias & White LED Power Supply RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1579ETG-T | 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX1579EVKIT | 功能描述:LED 照明开发工具 Evaluation Kit for the MAX1579 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
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