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19-3803; Rev 1; 4/09
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED (HB LED) Driver
General Description
Features
The MAX16800 current regulator operates from a 6.5V
to 40V input voltage range and delivers up to a total of
350mA to one or more strings of high-brightness LEDs.
The output current of the MAX16800 is adjusted by
using an external current-sense resistor in series with
the LEDs. An enable input allows wide-range “pulsed”
dimming. Wave-shaping circuitry reduces EMI. The dif-
ferential current-sense input increases noise immunity.
The MAX16800 is well suited for applications requiring
high-voltage input and is able to withstand automotive
load-dump events up to 40V. An on-board pass ele-
ment minimizes external components while providing
±3.5% output current accuracy. Additional features
include a 5V regulated output and short-circuit and
thermal protection.
The MAX16800 is available in a thermally enhanced,
5mm x 5mm, 16-pin TQFN package and is specified
over the automotive -40°C to +125°C temperature range.
Applications
Automotive Interior: Map, Courtesy, and Cluster
Lighting
Automotive Exterior: Tail Lights and CHMSL
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+6.5V to +40V Operating Range
Adjustable Level (35mA to 350mA)
±3.5% Output Current Accuracy
Integrated Pass Element with Low-Dropout
Voltage (0.5V typ)
Output Short-Circuit Protection
+5V Regulated Output with 4mA Source
Capability
Thermal Shutdown
Differential LED Current Sense
High-Voltage Enable Pin for Dimming Interface
Low Shutdown Supply Current (12μA typ)
Low 204mV Current-Sense Reference Reduces
Power Losses
Wave-Shaped Soft Edges Reduce Radiated EMI
During PWM Dimming
Available in Small, Thermally Enhanced,
5mm x 5mm, 16-Pin TQFN Package
-40°C to +125°C Operating Temperature Range
Ordering Information
Warning Lights for Emergency Vehicles
Navigation and Marine Indicators
General Illumination
PART
MAX16800ATE+
MAX16800ATE/V+
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
16 TQFN-EP*
16 TQFN-EP*
Signage, Gasoline Canopies, Beacons
Pin Configuration
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
/V denotes an automotive qualified part.
Simplified Diagram
TOP VIEW
+6.5V TO +40V
12
11
10
9
IN
OUT
N.C. 13
8
N.C.
0.1 μ F
V5
+5V REG
LEDs
0.1 μ F
N.C. 14
7
N.C.
MAX16800
EN 15
MAX16800
6
N.C.
CS+
OUT 16
+
5
N.C.
PWM DIMMING
R SENSE
EN
CS-
1
2
3
4
GND
TQFN
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim 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
MAX16800ATE/V+T 功能描述:LED照明驱动器 350mA Adj Linear HB LED Driver 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
MAX16800ATE+ 功能描述:LED照明驱动器 350mA Adj Linear HB LED Driver 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
MAX16800ATE+T 功能描述:LED照明驱动器 350mA Adj Linear HB LED Driver 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
MAX16800ATE-T 功能描述:LED照明驱动器 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
MAX16801AEUA 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX16801AEUA+ 功能描述:LED照明驱动器 Offline & DC/DC PWM for HB LED Driver 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
MAX16801AEUA+T 功能描述:LED照明驱动器 Offline & DC/DC PWM for HB LED Driver 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
MAX16801BEUA 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: