- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376179 > MLX10803 (Electronic Theatre Controls, Inc.) High power LED driver PDF資料下載
參數(shù)資料
| 型號： | MLX10803 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | High power LED driver |
| 中文描述： | 高功率LED驅動器 |
| 文件頁數(shù)： | 19/25頁 |
| 文件大?。?/td> | 479K |
| 代理商： | MLX10803 |
IC specification
MLX10803
High power LED driver
3901010803 Page 19/25
Data Sheet
Rev 025 2/OCT/07
Because of randomisation, the discharging time is not constant but varies within a certain range. It must be
ensured that only the longest possible monoflop time completely discharges the coil. Otherwise the coil is
discharged before the monoflop time ends which results in a loss of accuracy.
Conclusion:
In most cases the coil is driven in a combination of both ways. A trade off has to be made between
EMI behaviour and maximum allowed LED current. By varying these parameters, an optimum can
be found for every application.
Below are some examples for typical parameter sets given for a 4A LED current and the following application data:
RSENSE = 0.1
/ 2 watt
ROSC = 270k
L = 47μH, 4A minimum, 0.05
Normal nFET switch transistor, rds on < 0,01
Remarks:
4A and 0.05
results in 0.8 watt power dissipation over the coil.
4A and 0.1
for the RSENSE resistor results in 1.6 watt, but only for 50% of the time in average.
The LED(s) with this current will dissipate 32 watt if they have 8V forward voltage.
I
t
Imax1
Iavg
Toff
Coil 1
Imax2
Coil 2
Resistance 2
Resistance 1
Coil 1 > Coil 2
Resistance 1 > Resistance 2
相關PDF資料 |
PDF描述 |
|---|---|
| MLX10803KDC | High power LED driver |
| MLX90110 | 128bit OTP/RW Transponder |
| MLX90111 | 128bit Read Write Transponder |
| MLX90217 | Hall-Effect Cam Sensor |
| MLX90240 | Pressure Sensor IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MLX10803_05 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Automotive high power LED driver |
| MLX10803_06 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High power LED driver |
| MLX10803KDC | 制造商:Melexis Semiconductors 功能描述: |
| MLX10803KDC-AAA-000-RE | 功能描述:IC LED DRVR HP CONST CURR 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅動器 系列:- 標準包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓撲:PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應商設備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
| MLX10803KDC-AAA-000-TU | 制造商:Melexis Semiconductors 功能描述:IC LED DRIVER HP 8SOIC |
發(fā)布緊急采購，3分鐘左右您將得到回復。