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| 型号： | MAX8630WETD20+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，切换式电容器（充电泵） |
| 输出数： | 5 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | MAX8630WETD20+TDKR |
19-0825; Rev 0; 5/07
ATION
EVALU
AVAIL
KIT
ABLE
125mA 1x/1.5x Charge Pumps for
5 White LEDs in 3mm x 3mm TDFN
General Description
The MAX8630W/MAX8630X charge pumps drive up to 5
white LEDs with regulated constant current up to 125mA
total. By utilizing adaptive 1x/1.5x charge-pump modes
and very low-dropout current regulators, they achieve
high efficiency over the full 1-cell Li+ battery input volt-
age range. The 1MHz fixed-frequency switching allows
for tiny external components, and the regulation scheme
is optimized to ensure low EMI and low input ripple. An
integrated derating function protects the LEDs from
overheating during high ambient temperatures.
The MAX8630W/MAX8630X are factory trimmed for full-
scale LED current options of 15mA, 18mA, 20mA, and
25mA. The MAX8630X uses two enable inputs (ENM for
3 main LEDs and ENS for 2 sub LEDs) for simple on/off
control and single-wire, serial-pulse dimming in 32 linear
steps. The MAX8630W uses a single direct PWM input
(PWM) to control all 5 LEDs with DC current proportional
to the PWM duty cycle. If both ENM and ENS (or PWM)
are kept low for more than 4ms, the MAX8630_ enters
Features
? 93% Max/85% Avg. Efficiency (P LED /P BATT ) Over
Li+ Battery Discharge
? 1% LED Current Accuracy
? 125mA Total Drive Capability
? Adaptive 1x/1.5x Mode Switchover
? Single-Wire, Serial-Pulse Dimming (MAX8630X)
Independent On/Off/Dimming for Main and Sub
Linear—Full, 31/32nd, 30/32nd, … 1/32nd
? Direct-PWM Dimming (MAX8630W)
? 15, 18, 20, and 25mA Full-Scale Versions
? Low 0.1 μ A Shutdown Current
? Soft-Start Eliminates Inrush Current
? Output Overvoltage Protection
? Thermal-Derating Function Protects LEDs
? 14-Pin, 3mm x 3mm TDFN Package
Ordering Information
shutdown. The MAX8630W/MAX8630X are available in a
14-pin, 3mm x 3mm TDFN package (0.8mm max height).
Applications
Display Backlight (Up to 5 LEDs)
PART
MAX8630W ETD15+T
PIN-
PACKAGE
14 TDFN-14
(3mm x 3mm)
TOP
MARK
ADQ
PKG
CODE
T1433-2
Main (3 LEDs) + Sub (2 LEDs) Displays
Cell Phones and Smartphones
PDAs, Digital Cameras, and Camcorders
Typical Operating Circuit
1 μ F
INPUT
Note: All devices are specified to operate over the -40°C to
+85°C operating temperature range.
+ Denotes a lead-free package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.
Pin Configuration
TOP VIEW
2.7V TO 5.5V
IN
C1P
C1N
OUT
OUTPUT
14
13
12
11
10
9
8
1 μ F
1 μ F
GND
MAX8630X
LED1
MAIN
ENABLE MAIN
ON/OFF AND
DIMMING
ENM
LED2
LED3
SUB
MAX8630W
MAX8630X
LED4
ENABLE SUB
ON/OFF AND
DIMMING
ENS
C2P
C2N
LED5
1
2
3
4
5
6
7
1 μ F
( ) ARE FOR MAX8630W
TDFN
3mm × 3mm
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8630WETD25+T | 功能描述:LED照明驱动器 125mA 1x/1.5x Charge Pump for 5 WLEDs 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 |
| MAX8630XETD15+T | 功能描述:LED照明驱动器 125mA 1x/1.5x Charge Pump for 5 WLEDs 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 |
| MAX8630XETD18+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8630XETD18+T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8630XETD20+ | 制造商:Maxim Integrated Products 功能描述: |
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