- 您现在的位置：买卖IC网 > PDF目录20743 > MAX8648ETE+T (Maxim Integrated)IC LED DRVR WT/RGB BCKLGT 16TQFN PDF资料下载
参数资料
| 型号： | MAX8648ETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WT/RGB BCKLGT 16TQFN |
| 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： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 1MHz |
| 电源电压： | 1.7 V ~ 5.5 V |
| 输出电压： | 5V |
| 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（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
19-0790; Rev 1; 9/07
ATION
EVALU
AVAILA
KIT
BLE
Ultra-Efficient Charge Pumps for
Six White/RGB LEDs in 3mm x 3mm Thin QFN
General Description
Features
The MAX8647/MAX8648 drive up to six white LEDs or
two sets of RGB LEDs with regulated constant current
for display backlight and fun light applications. By utiliz-
ing an inverting charge pump and extremely low-
dropout adaptive current regulators, these ICs achieve
very high efficiency over the full 1-cell Li+ battery volt-
age range and even with large LED forward voltage
mismatch. The 1MHz fixed-frequency switching allows
for tiny external components. The regulation scheme is
optimized to ensure low EMI and low input ripple. The
MAX8647/MAX8648 include thermal shutdown, open-
and short-circuit protection.
The MAX8647 features an I 2 C serial port, while the
MAX8648 features a three-wire serial-pulse logic inter-
face. Both devices support independent on/off and
dimming for main and subbacklights. The dimming
ranges are pseudo-logarithmic from 24mA to 0.1mA
?
?
?
?
?
?
?
?
?
?
Six Adaptive Current Regulators
Independent Voltage Supply for Each LED
Individual LED Brightness Control (MAX8647)
24mA to 0.1mA Dimming Range
I 2 C Interface (MAX8647)
Serial-Pulse Dimming Logic (MAX8648)
±2% Accuracy, ±0.4% Matching (typ)
Low 70 μ A Quiescent Current
Low 1 μ A Shutdown Current
Inrush Current Limit
T A Derating Function Protects LEDs
16-Pin, 3mm x 3mm Thin QFN Package
Ordering Information
and off in 32 steps. Both devices include a temperature
derating function to safely allow bright 24mA full-scale
PART
DIMMING
PIN
PACKAGE
TOP
MARK
PKG
CODE
output current setting while automatically reducing cur-
rent to protect LEDs at high ambient temperatures
MAX8647 ETE+ I 2 C interface 16 Thin QFN-EP*
AFD
T1633-5
above +60°C.
The MAX8647/MAX8648 are available in a 16-pin, 3mm
x 3mm thin QFN package (0.8mm max height).
MAX8648 ETE+
Serial-pulse
logic
16 Thin QFN-EP*
AFE
T1633-5
Applications
White LED Backlighting, Single or Dual Display
Wide-Gamut RGB LED Display Backlighting
Camera Flash or RGB Indicators
Cellular Phones and Smartphones
Note: All devices are specified over the -40°C to +85°C extended
temperature range.
+Denotes a lead-free package.
*EP = Exposed paddle.
Typical Operating Circuit
PDAs, Digital Cameras, and Camcorders
1 μ F
1 μ F
TOP VIEW
Pin Configuration
INPUT
2.7V TO 5.5V
C1P
IN
C1N
C2P
C2N
NEG
1 μ F
12
11
10
9
1 μ F
EP
GND
WHITE
LED1 13
8
LED6
OR RGB LED
SDA (ENC) 14
7
NEG
MAX8648
LED1
D1
SCL (ENB) 15
MAX8647ETE
MAX8648ETE
6
C1N
LED2
D2
V DD (ENA) 16
+
5
C2N
ENA
LED3
D3
1
2
3
4
SERIAL-
PULSE
ENB
LED4
D4
THIN QFN
INTERFACE
ENC
LED5
LED6
D5
D6
( ) DESIGNATE PINS ON THE MAX8648
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
1
相关PDF资料 |
PDF描述 |
|---|---|
| TPSE687K006R0060 | CAP TANT 680UF 6.3V 10% 2917 |
| GEC15DREF-S13 | CONN EDGECARD 30POS .100 EXTEND |
| MAX667EPA | IC REG LDO 5V/ADJ .25A 8-DIP |
| MAX6969AUG+T | IC LED DRIVER LINEAR 24-TSSOP |
| TPSE687K004R0040 | CAP TANT 680UF 4V 10% 2917 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8648EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX8648 EVAL KIT - Rail/Tube |
| MAX8649AEWE+T | 功能描述:直流/直流开关调节器 1.8A Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX8649BEWE+T | 功能描述:直流/直流开关调节器 1.8A Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX8649EVKIT+ | 制造商:Maxim Integrated Products 功能描述:1.8A STEP-DOWN REGULATOR W/DIFFERENTIAL REMOTE SENSE IN 2MM - Boxed Product (Development Kits) |
| MAX8649EWE+ | 制造商:Maxim Integrated Products 功能描述:1.8A STEP-DOWN REGULATOR W/DIFFEREN - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。