- 您现在的位置：买卖IC网 > Datasheet目录341 > MAX8930EWJ+T (Maxim Integrated)IC LED DRVR WT/RGB BCKLGT 49WLP Datasheet资料下载
参数资料
| 型号： | MAX8930EWJ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 24/52页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WT/RGB BCKLGT 49WLP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | PWM，切换式电容器（充电泵） |
| 输出数： | 11 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | OLED，RGB，白色 LED |
| 频率： | 100kHz ~ 400kHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 49-WLP |
| 供应商设备封装： | 49-WLP（3.15x3.15） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页
MAX8930
WLED Charge Pump, RGB, OLED Boost,
LDOs with ALC and CAI
I 2 C COMMAND
(CAI = 1 AT Reg 3)
CAI ENABLED BY I 2 C
CAI (DPWM)
SIGNAL
I 2 C COMMAND
DIMMING BY I 2 C
(MAINI2C = 1 AT 02h)
WLED CURRENT BY I 2 C
SHOULD BE OUT
BEFORE 10ms
WLED CURRENT BY CAI
DIMMING BY I 2 C
(MAINI2C = 0 AT 02h)
I 1
I 2
I 3
t B
t B : BLANKING TIME, THE TIME FOR CONVERTING
DPWM TO AVERAGE DIMMING CURRENT
Figure 3. Timing Diagram of Stand-Alone CAI Dimming Operation
should be set to 0 in less than t B , 10ms (typ) for CAI dim-
ming to be exclusively through DPWM.
If this setup fails, the previous dimming current is still
effective even though bit 7 in 02h (CAI) has been set to 1.
The current of I1, I2, and I3 of Figure 3 is different
depending on the duty cycle of DPWM.
t B is the settling time for the CAI input filter to calculate
an average value for the dimming current.
Dimming by Both Digital PWM on CAI and Either I 2 C
or ALC at the Same Time
If an end-user wants to see either TV or a movie, the
LCD driver module may take care of dimming control
independently. In this situation, the output signal from the
LCD module has some color information. For example,
(16mA/LED) + gamma correction can make the user feel
the same brightness of the LCD screen compared to
(20mA/LED) + no gamma correction.
24
In this combined dimming control, any dimming current
set earlier by either the I 2 C register or the ALC register
is the value corresponding with 100% duty cycle of the
CAI signal.
Ambient Light Control Operation
Dimming of the LCD backlight and ON/OFF control of the
keypad backlight are possible on the basis of the data
detected by an external ambient light sensor. The ALC
consists of the following segments:
? Bias function (3V output)
? 8-bit ADC with an average filter
? A slope process function
? A LOG scale conversion function
A wide range of ambient light sensors can be used with
the MAX8930, including photo diode, photo transistor,
photo IC (a linear output/LOG output), etc. The detected
amount of ambient light is changed into digital data by
Maxim Integrated
相关PDF资料 |
PDF描述 |
|---|---|
| MAXQ2000-KIT | EVAL KIT FOR MAXQ2000 |
| MAXQ610-KIT# | EVALUATION KIT FOR MAXQ610 |
| MB2146-401-01A | KIT STARTER F2MC-8FX 3V |
| MB2146-401-03A | KIT STARTER F2MC-8FX 5V |
| MB2146-410A-01-E | KIT STARTER MB95200/210H SERIES |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8931EVKIT+ | 制造商:Maxim Integrated Products 功能描述:5V RS232 TRANSCEIVER - Boxed Product (Development Kits) |
| MAX8932EVKIT+ | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8932EWT120+T | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8934AETI+ | 功能描述:电池管理 Dual Linear Charger Smart Power Selector RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8934AETI+T | 功能描述:电池管理 Dual Linear Charger Smart Power Selector RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。