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| 型号： | MAX16805ATP+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR HIGH BRIGHT 20-TQFN |
| 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 |
| 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： | 400kHz |
| 电源电压： | 5.5 V ~ 40 V |
| 输出电压： | 5.1V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
ATION
EVALU
AVAIL
19-0625; Rev 1; 1/07
KIT
ABLE
EEPROM-Programmable, High-Voltage,
350mA LED Drivers with LED Current Foldback
General Description
The MAX16805/MAX16806 LED drivers eliminate the
need for microcontrollers or switch-mode converters for
automotive interior dome, map, and courtesy light
applications. An EEPROM-programmable LED current-
sense reference simplifies production by using one
sense resistor to set the LED current for all LED bins. A
Features
? EEPROM or I 2 C Dynamically Programmable:
LED Current Foldback for High Input Voltage
LED Current Reference
LED Current Thermal Foldback (MAX16806)
? On-Board 200Hz Ramp Generator Eliminates the
Need for μC PWM Signal
dual-mode DIM pin and an on-board 200Hz ramp gen-
erator allow for PWM dimming with an analog or PWM
control signal. The analog control signal at dimming
input DIM allows for the “theater dimming” effect to be
implemented. Fast turn-on/-off times ensure a wide-
range PWM operation, while waveshaping circuitry min-
imizes EMI. EEPROM-programmable LED current
foldback makes it possible to operate at a high input
voltage, while saving the cost and space associated
with having a large heatsink. The MAX16806 works with
an external thermal sensor to maintain maximum LED
junction temperature by folding back the LED current.
The thermal foldback temperature knee and slope are
EEPROM programmable. The MAX16806 SW pin sup-
?
?
?
?
?
?
?
Flexible Analog or PWM Control for PWM or
Theater Dimming
Wetting Current and Debounce for Momentary
Switch (MAX16806)
5.5V to 40V Input with Up to 39V Output Capability
35mA to 350mA Adjustable LED Current
Waveshaping Minimizes EMI During Dimming
Output Short-Circuit and Overtemperature
Protection
-40°C to +125°C Operating Temperature Range
Ordering Information
plies necessary wetting current to a momentary switch.
Applications
PART
TEMP RANGE
PIN
PACKAGE
PKG
CODE
Automotive Interior: Map, Dome, and Courtesy
Lighting
Automotive Exterior:
Rear Combination Light (RCL)
Daytime Running Light (DRL)
MAX16805 ATP+ -40°C to +125°C 20 TQFN-EP** T2055M-5
MAX16806 ATP+ -40°C to +125°C 20 TQFN-EP** T2055M-5
+Denotes lead-free package.
**EP = Exposed pad.
Pin Configurations appear at end of data sheet.
Adaptive Front Light
Emergency Vehicle Warning Lights
Navigation and Marine Indicators
Typical Operating Circuits
+5.5V TO +40V
IN
OUT
I LED
+5.5V TO +40V
IN
OUT
I LED
0.1 μ F
SERIAL CLOCK
EN
SCL
V5
+5V REG
0.1 μ F
LEDs
V5
V CC
0.1 μ F
EN
V5
+5V REG
0.1 μ F
LEDs
SERIAL DATA
V5
SDA
MAX16805
CS+
CS-
R SENSE
MAX6613 ? OUT
GND
TFP/SCL
TFN/SDA
MAX16806
CS+
CS-
R SENSE
DIM
PWM DIMMING
SW
GND
DIM
GND
ANALOG CONTROL PWM DIMMING
? MAX6613 THERMAL SENSOR IS OPTIONAL.
PWM CONTROL DIMMING
________________________________________________________________ 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 |
|---|---|
| MAX16806ATP+ | 功能描述:LED照明驱动器 EEPROM-Prog 350mA w/Current Foldback 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 |
| MAX16806ATP+T | 功能描述:LED照明驱动器 EEPROM-Prog 350mA w/Current Foldback 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 |
| MAX16806EVCMAXQU+ | 功能描述:LED 照明开发工具 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: |
| MAX16806EVKIT+ | 功能描述:LED 照明开发工具 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: |
| MAX16806EVMAXQUSB+ | 功能描述:LED 照明开发工具 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: |
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