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参数资料
| 型号： | MAX6977AUE+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 16-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 恒定电流： | 是 |
| 拓扑： | 线性，高端 |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | LED 照明显示器，标牌，汽车 |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 5.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 125°C |
19-3554; Rev 2; 7/05
8-Port, 5.5V Constant-Current LED Driver with
LED Fault Detection
General Description
The MAX6977 serial-interfaced LED driver provides
eight open-drain, constant-current sinking LED driver
outputs rated at 5.5V. The MAX6977 operates from a 3V
to 5.5V supply. The MAX6977 supply and the LEDs’
supply may power up in any order. The constant-cur-
rent outputs are programmed together to up to 55mA
using a single external resistor. The MAX6977 operates
with a 25Mb, industry-standard, 4-wire serial interface.
The MAX6977 includes circuitry that automatically
detects open-circuit LEDs. Fault status is loaded into the
serial interface shift register when LE goes high, and is
automatically shifted out on DOUT when the next data
transmission is shifted in.
The MAX6977 uses the industry-standard shift-register-
plus-latch-type serial interface. The driver accepts data
shifted into an 8-bit shift register using data input DIN
and clock input CLK. Input data appears at the output
DOUT eight clock cycles later to allow cascading of
Features
o 25Mb Industry-Standard 4-Wire Serial Interface at 5V
o 3V to 5.5V Logic Supply
o 8 Constant-Current LED Outputs Rated at 5.5V
o Up to 55mA Continuous Current per Output
o Output Current Programmed by Single Resistor
o 3% Current Matching Between Outputs
o 6% Current Matching Between ICs
o Reports Open-Circuit LED Faults
o -40°C to +125°C Temperature Range
Ordering Information
multiple MAX6977s. The latch-enable input LE loads
the 8 bits of shift register data into an 8-bit output latch
to set which LEDs are on and which are off. The output-
enable input OE gates all eight outputs on and off, and
is fast enough to be used as a PWM input for LED
intensity control.
PART
MAX6977AUE
MAX6977APE
MAX6977AAE
* EP = Exposed pad.
TEMP RANGE
-40 ° C to +125 ° C
-40 ° C to +125 ° C
-40 ° C to +125 ° C
PIN-PACKAGE
16 TSSOP-EP*
16 PDIP
16 SSOP
For safety-related applications requiring a watchdog
timer, refer to the MAX6978 data sheet that includes a
fail-safe feature that blanks the display if the serial inter-
face becomes inactive for more than 1s.
The MAX6977 is one of a family of 12 shift-register-plus-
latch-type LED drivers. The family includes 8-port and
16-port types, with 5.5V- or 36V-rated LED outputs, with
and without open-circuit LED detection and watchdog.
Typical Application Circuit and Selector Guide appear at
end of data sheet.
Pin Configuration
All versions operate from a 3V to 5.5V supply, and are
specified over the -40°C to +125°C temperature range.
TOP VIEW
Variable Message Signs
Applications
GND 1
DIN 2
CLK 3
16 V+
15 SET
14 DOUT
Marquee Displays
Point-of-Order Signs
Traffic Signs
Gaming Features
LE 4
OUT0 5
OUT1 6
OUT2 7
MAX6977AUE
MAX6977APE
MAX6977AAE
13 OE
12 OUT7
11 OUT6
10 OUT5
Architectural Lighting
OUT3 8
9
OUT4
TSSOP/PDIP/SSOP
________________________________________________________________ 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 |
|---|---|
| MAX6977AUE+ | 功能描述:LED照明驱动器 8-Port 5.5V Constant Current 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 |
| MAX6977AUE+T | 功能描述:LED照明驱动器 8-Port 5.5V Constant Current 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 |
| MAX6977AUE-T | 功能描述:LED照明驱动器 8-Port 5.5V Constant Current 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 |
| MAX6978AAE | 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6978AAE-T | 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
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