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MAX8930
WLED Charge Pump, RGB, OLED Boost,
LDOs with ALC and CAI
General Description
The MAX8930 integrates a charge pump for white LED
display backlighting with ambient light control (ALC)
feature. The high-efficiency, adaptive-mode 1x/-0.5x
charge pump drives up to 11 LEDs (8 WLEDs + RGB
LED) with constant current for uniform brightness. The
LED current is adjustable from 0.1mA to 25.6mA in 256
linear steps through I 2 C. High accuracy and LED-to-LED
current matching are maintained throughout the adjust-
ment range. The MAX8930 includes soft-start, thermal
Features
S White LED Charge Pump
S Adaptive 1x or -0.5x Negative Modes
S 11 Low-Dropout LED Current Sinks with 25.6mA
to 0.1mA in 256 Dimming Steps
S Ramp-Up/Down Control for Main White LED
S Ramp-Up/Down Control for RGB LED
S Individual Brightness Control for Each White,
RGB LED
shutdown, open-circuit, and short-circuit protection.
Three 200mA LDOs are provided with programmable
output voltages to provide power to external circuitry.
These three LDOs can also be configured for a GPO
function through the I 2 C. A step-up converter is also
available on the MAX8930 for biasing a PMOLED sub-
panel.
The MAX8930 is available in the 49-bump, 3.17mm x
3.17mm WLP package.
Simplified Application Circuit
I NPU T
S
S
S
S
S
S
S
S
S
S
Low 240μA (typ) Quiescent Current
Ambient Light Control (ALC) for Any Type of Light
Sensor
Content Adaptive Interface
I 2 C-Compatible Control Interface
Three Programmable LDOs Up to 200mA
Step-Up DC-DC Converter with Programmable
Output for PMOLED Application
Low 0.1μA Shutdown Current
2.7V to 5.5V Supply Voltage Range
Thermal Shutdown
Open and Short-Circuit Protection
INPUT 2.7V TO 5.5V
INPUT 1.7V TO 5.5V
PV1
PV2
PV3
PV5
PV4
BIAS
WLED1
WLED2
WLED3
WLED4
WLED5
WLED6
Applications
Cell Phones and Smartphones
PDAs, Digital Cameras, Camcorders, and Other
Portable Equipment
MAX8930EWJ+
-40 N C to +85 N C
I NPU T
LIGHT
SENSOR
SENSE
KEY
MAX8930
WLED7
WLED8
RLED
GLED
BLED
CHG
Ordering Information
PART TEMP RANGE PIN-PACKAGE
49 WLP
0.4mm pitch
+ Denotes a lead(Pb)-free/RoHS-compliant package.
SCL
SDA
LDO1
LDO2
2.3V TO 3.1V, 200mA
2.3V TO 3.1V, 200mA
μP
EN
CAI
LDO3
OUT
1.2V, 1.5V, 1.8V, 2.5V, 200mA
13V TO 16.5V
Typical Operating Circuit appears at end of data sheet.
PLAYR
PLAYG
PLAYB
REFBP
V DD
FILT
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4921; Rev 0; 3/10
发布紧急采购，3分钟左右您将得到回复。
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相关代理商/技术参数
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制造商:Maxim Integrated Products 功能描述:5V RS232 TRANSCEIVER - Boxed Product (Development Kits)
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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
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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
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MAX8934BETI+
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MAX8934BETI+T
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