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参数资料
| 型号： | MAX8630WETD20+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/12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 |
125mA 1x/1.5x Charge Pumps for 5 White LEDs
in 3mm x 3mm TDFN
Pin Description (continued)
MAX8630X
5
6
PIN
MAX8630W
5
6
NAME
C2P
C1P
FUNCTION
Transfer Capacitor 2 Positive Connection. Connect a 1μF ceramic capacitor
from C2P to C2N.
Transfer Capacitor 1 Positive Connection. Connect a 1μF ceramic capacitor
from C1P to C1N.
Output. Connect a 1μF ceramic capacitor from OUT to GND. Connect OUT to
7
7
OUT
the anodes of all the LEDs. In shutdown, OUT is pulled down by an internal
5k Ω resistor.
Enable and Dimming Control for Sub LEDs (LED4 and LED5). Drive ENS logic-
low for greater than 4ms to disable the sub LEDs. Drive both ENM and ENS
logic-low for greater than 4ms to shut down the IC. Drive ENS logic-high to
8
—
ENS
begin soft-start and enable maximum (100%) sub LED current. Subsequent
pulses on ENS cause the sub LED current to decrease in 32 linear steps.
Because of the soft-start delay, it is possible to turn on the IC and quickly set a
dim level so the sub LED current never transitions through the maximum
setting. See the ENM/ENS Dimming Control section.
Enable and Dimming Control for Main LEDs (LED1, LED2, and LED3). Drive
ENM logic-low for greater than 4ms to disable the main LEDs. Drive both ENM
and ENS logic-low for greater than 4ms to shut down the IC. Drive ENM logic-
high to begin soft-start and enable maximum (100%) main LED current.
9
—
ENM
Subsequent pulses on ENM cause the main LED current to decrease in 32
linear steps. Because of the soft-start delay, it is possible to turn on the IC and
quickly set a dim level so the main LED current never transitions through the
maximum setting. See the ENM/ENS Dimming Control section.
Direct PWM input. PWM controls output current as a percentage of full-scale
—
8
PWM
current in proportion to PWM signal duty cycle. The frequency range is 900Hz
to 200kHz.
PWM Filter Capacitor Connection. Connect a capacitor from CPWM to GND to
—
9
CPWM
form a filter with the internal 150k Ω resistor. The recommended capacitor for
10Hz corner is 0.1μF.
10
10
LED5
Sub LED Cathode Connections and Charge-Pump Feedback. Current flowing
into LED_ is based on the ENS (or PWM) description above. The charge pump
11
12
13
14
—
11
12
13
14
—
LED4
LED3
LED2
LED1
EP
regulates the lowest LED_ voltage to 0.12V. Connect LED_ to OUT if the
corresponding LED is not populated.
Main LED Cathode Connections and Charge-Pump Feedback. Current flowing
into LED_ is based on the ENM (or PWM) description above. The charge pump
regulates the lowest LED_ voltage to 0.12V. Connect LED_ to OUT if the
corresponding LED is not populated.
Exposed Paddle. Connect to GND directly under the IC.
6
_______________________________________________________________________________________
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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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