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参数资料
| 型号： | MAX16822BASA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/10页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER HIGH BRIGHT 8-SOIC |
| 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，降压（降压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载 |
| 类型 - 次要： | 高亮度 LED（HBLED） |
| 频率： | 2MHz |
| 电源电压： | 6.5 V ~ 65 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
2MHz, High-Brightness LED Drivers with
Integrated MOSFET and High-Side Current Sense
Typical Operating Characteristics (continued)
(V IN = V DIM = 48V, C VCC = 1μF, R SENSE = 0.62 Ω , L = 220μH (connected between IN and CS). Typical values are at T A = +25°C,
unless otherwise noted.)
1.0
0.9
LX RDSON
vs. TEMPERATURE
V IN = 65V
30.0
29.5
29.0
I TEMP_I
vs. TEMPERATURE
0.8
0.7
0.6
0.5
V IN = 48V
V IN = 6.5V
28.5
28.0
27.5
27.0
26.5
26.0
0.4
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
25.5
25.0
V IN = 48V
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
Pin Description
PIN
1
2
3
4
5, 6
7
8
NAME
CS
IN
GND
PGND
LX
DIM
TEMP_I
FUNCTION
Current-Sense Input. Connect a resistor between IN and CS to program the LED current.
Positive Supply Voltage Input. Bypass with a 1 μF or higher value capacitor to GND.
Ground
Power Ground
Switching Node
Logic-Level Dimming Input. Drive DIM low to turn off the current regulator. Drive DIM high to
enable the current regulator.
Thermal Foldback Control and Linear Input. Bypass with a 0.01μF capacitor to GND if thermal
foldback or analog dimming is used. See the Thermal Foldback section for more details.
Detailed Description
The MAX16822A/MAX16822B are step-down, constant-
current, high-brightness LED (HB LED) drivers. These
devices operate from a +6.5V to +65V input-voltage
range. The maximum output current is 500mA, if the
part is used at temperatures up to +105°C, or 350mA, if
it is used up to +125°C. A high-side current-sense
resistor sets the output current and a dedicated PWM
dimming input enables pulsed LED dimming over a
wide range of brightness levels.
A high-side current-sensing scheme and an on-board
current-setting circuitry minimize the number of exter-
nal components while delivering LED current with ±3%
accuracy, using a 1% sense resistor. See Figure 1 for
an internal block diagram.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16822BEVKIT+ | 功能描述:LED 照明开发工具 MAX16822B 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: |
| MAX16823ATE/V+ | 功能描述:LED照明驱动器 3Ch Linear HB w/Open LED Detection 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 |
| MAX16823ATE/V+T | 功能描述:LED照明驱动器 3Ch Linear HB w/Open LED Detection 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 |
| MAX16823ATE+ | 功能描述:LED照明驱动器 3Ch Linear HB w/Open LED Detection 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 |
| MAX16823ATE+T | 功能描述:LED照明驱动器 3Ch Linear HB w/Open LED Detection 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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