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参数资料
| 型号： | MAX16816ATJ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 13/33页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR HIGH BRIGHT 32-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | PWM，SEPIC，降压（降压），升压（升压） |
| 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： | 125kHz ~ 500kHz |
| 电源电压： | 5.5 V ~ 76 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
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Programmable Switch-Mode LED Driver
with Analog-Controlled PWM Dimming
Pin Description (continued)
PIN
21
22
23
25
26
27
28
29
30
31
32
EP
NAME
SNS-
QGND
DGT
LO
CS+
CS-
CLMP
HI
REG2
V CC
FAULT
EP
FUNCTION
Negative Peak Current-Sense Input. Connect SNS- to the negative side of the switch current-sense resistor,
R SENSE .
Analog Ground. Ensure a low-impedance connection between QGND and AGND.
Dimming Gate-Driver Output. Connect DGT to the gate of an external n-channel MOSFET for dimming. DGT
is powered by the internal regulator, CLAMP, and is referenced to LO.
Low-Voltage Input. LO is the return point for the LED current. When using the MAX16816 in a buck-boost
configuration, connect LO to V CC . When using the device in a boost configuration only, connect LO to
AGND. Connect LO to the junction of the inductor and LED current-sense resistor, R CS , when using a buck
configuration.
Noninverting Current-Sense Amplifier Input. Connect CS+ to the positive side of an external sense resistor,
R CS , connected in series with the load (LEDs).
Inverting Current-Sense Amplifier Input. Connect CS- to the negative side of an external sense resistor, R CS ,
connected in series with the load (LEDs).
Internal CLAMP Regulator Bypass. CLAMP supplies an 8V (typ) output when V HI ≥ 9V. If V HI is lower than
9V, V CLMP is one diode drop below V HI . The CLAMP regulator powers the current-sense amplifier and
provides the high reference for the dimming driver. V CLMP must be at least 2.5V higher than V LO to enable
the current-sense amplifier and dimming MOSFET driver. Bypass CLMP to LO with a 0.1μF ceramic
capacitor.
High-Voltage Input. HI is referred to LO. HI supplies power to the current-sense amplifier and dimming
MOSFET gate driver through the CLMP regulator.
Internal Regulator Output. REG2 is an internal voltage regulator that generates EEPROM-programmable
(5V to 15V) output and supplies power to internal circuitry. Connect REG2 to DRI to power the switching
MOSFET driver during normal operation. Bypass REG2 to AGND with a 10μF ceramic capacitor.
Supply Voltage Input
FAULT Input/Output. FAULT is a bidirectional high-voltage logic input/output. FAULT multiplexes a 1-Wire
programming interface with a fault indicator. FAULT is internally pulled up to 5V through a 10k Ω resistor and
a 1.8mA (max) current pulldown to ground.
Exposed Pad. Connect EP to AGND. EP also functions as a heatsink to maximize thermal dissipation. Do not
use as the main ground connection.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16816EVKIT+ | 功能描述:LED 照明开发工具 MAX16816 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: |
| MAX16818ATI+ | 功能描述:LED照明驱动器 1.5MHz 30A w/Rapid LED Current Pulsing 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 |
| MAX16818ATI+T | 功能描述:LED照明驱动器 1.5MHz 30A w/Rapid LED Current Pulsing 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 |
| MAX16818ETI+ | 功能描述:LED照明驱动器 1.5MHz 30A w/Rapid LED Current Pulsing 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 |
| MAX16818ETI+T | 功能描述:LED照明驱动器 1.5MHz 30A w/Rapid LED Current Pulsing 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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