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| 型号： | LDS8160-002-T2 |
| 厂商： | IXYS |
| 文件页数： | 15/39页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR WHT/RGB BCKLGT 16WQFN |
| 标准包装： | 1 |
| 系列： | LED-Sense™, PowerLite™ |
| 拓扑： | 线性（LDO），PWM |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 1.2MHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | LDS8160-002-T2-6 |
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LDS8160
For example, to decrease LED brightness by 50%
(-6dB) at all three LED banks, Global PWM Dimming
data code written in register 04h should be 6/0.17 =
35 (decimal) = 23h (see Figure 6: Global Dimming in
Logarithmic Mode in percent vs. register 04h data
(0% dimming = full LED brightness).
The LDS8160 integrates temperature measurement
LUT corrections codes are added/subtracted to/from
the user-set duty cycle/dimming codes (dynamic
and/or global) for the channel to correct LED
brightness.
The LDS8160 integrates a 10-bit ADC and digital
processing to determine LED temperatures
approximately every 2.5 seconds. The proprietary
and compensation processing to maintain stable LED
LED-Sense
TM
algorithm allows direct measurement of
brightness across varying ambient temperature and
de-rate power dissipated by LEDs, if the LED die
temperature exceeds a preset value.
Figure 3: Dynamic Mode Dimming in Logarithmic
Mode in dB vs. registers 05h – 07h data
(0dB dimming = full LED brightness)
LED junction temperatures on the LEDA1, LEDB1,
and LEDC1 driver channels. Additionally an on-chip
silicon temperature sensing diode is also measured
to enhance temperature estimation accuracy.
Figure 5: Global Dimming in Logarithmic Mode in
dB vs. register 04h data
(0dB dimming = full LED brightness)
Figure 4: Dynamic Mode Dimming in Logarithmic
Mode in percent vs. registers 05h – 07h data
(0% dimming = full LED brightness)
Figure 6: Global Dimming in Logarithmic Mode in
percent vs. register 04h data
(0% dimming = full LED brightness)
Measured temperatures are encoded into 5-bit
T-codes representing 5 C temperature intervals from
-35 to +120 C. The measured T-code addresses
0
0
stored ΔPWM adjustment codes to adjust the
dimming level and therefore average current through
the LEDs. The user loads specific ΔPWM codes into
the LUTs to maintain constant average current and
therefore luminosity over temperature.
In normal operation mode, the LDS8160 senses the
LED temperatures from all 3 available channels when
in the default RGB (3 channel) mode, or only from the
LEDA1 channel when used in the WLED (single
channel) mode.
? 2009 IXYS Corp.
Characteristics subject to change without notice
15
Doc. No. 8160_DS, Rev. N1.0
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| LDS8161-002-T2 | 功能描述:LED照明驱动器 6-Chan High-Side WLED Driver 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 |
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| LDS8620-002-T2 | 功能描述:LED照明驱动器 200mA Dual Output Flash/Lamp Drvr 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 |
| LDS8621-002-T2 | 功能描述:LED照明驱动器 200mA Dual Output Flash/Lamp Drvr 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 |
| LDS8621002-T2-960 | 功能描述:IC LED DRIVER FLASH 16WQFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:PowerLite™ 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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