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参数资料
| 型号： | MAX16820EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX16820 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 1A |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 20V |
| 特点： | 可调光 |
| 输入电压： | 5 ~ 28V |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX16820 |
2MHz High-Brightness LED Drivers with
High-Side Current Sense and 5000:1 Dimming
Pin Description
PIN
1
2
3
4
5
6
EP
NAME
IN
CSN
DIM
GND
DRV
V CC
—
FUNCTION
Positive Supply Voltage Input. Bypass with a 1μF or higher value capacitor to GND.
Current-Sense Input
Logic-Level Dimming Input. Drive DIM low to turn off the current regulator. Drive DIM high to enable
the current regulator.
Ground
Gate Drive Output. Connect to the gate of an external n-channel MOSFET.
Voltage Regulator Output. Connect a 1μF capacitor from V CC to GND.
Exposed Paddle. Connect to a large-area ground plane for improved power dissipation. Do not use
as the only ground connection for the device.
Functional Diagram
IN
REGULATOR
-
+
CS
V CC
CSN
BANDGAP
REF
COMPARATOR
1.23V
+
-
GATE
DRIVER
DRV
UVLO
COMPARATOR
GND
DIM
DIM
BUFFER
MAX16819
MAX16820
Detailed Description
The MAX16819/MAX16820 are step-down, constant-
current, high-brightness LED (HB LED) drivers. These
devices operate from a 4.5V to 28V input voltage range
and provide up to 0.5A of source and 1A of sink drive
capability to the gate of an external MOSFET. A high-
side current-sense resistor sets the output current and
a dedicated PWM dimming input (DIM) allows for a
wide range of independent pulsed dimming.
The high-side current-sensing scheme and on-board
current-setting circuitry minimize the number of exter-
nal components while delivering LED current with a
±5% accuracy, using a 1% sense resistor. See the
Functional Diagram.
6
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相关PDF资料 |
PDF描述 |
|---|---|
| MAX16821BEVKIT+ | KIT EVAL FOR MAX16821B |
| MAX16822BEVKIT+ | KIT EVAL FOR MAX16822 |
| MAX16823EVKIT+ | EVAL KIT FOR MAX16823 |
| MAX16824EVKIT+ | KIT EVAL FOR MAX16824 |
| MAX16825EVKIT+ | KIT EVAL FOR MAX16825 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16820EVKIT+ | 功能描述:LED 照明开发工具 MAX16820 Eval Kit RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX16821AATI+ | 功能描述:LED照明驱动器 Synchronous HB w/Rapid Current Puls 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 |
| MAX16821AATI+T | 功能描述:LED照明驱动器 Synchronous HB w/Rapid Current Puls 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 |
| MAX16821BATI+ | 功能描述:LED照明驱动器 Synchronous HB w/Rapid Current Puls 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 |
| MAX16821BATI+T | 功能描述:LED照明驱动器 Synchronous HB w/Rapid Current Puls 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 |
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